/*
* BSD 2-Clause License
*
* Copyright (C) 2014-2016, Lazaros Koromilas <lostd@2f30.org>
* Copyright (C) 2014-2016, Dimitris Papastamos <sin@2f30.org>
* Copyright (C) 2016-2019, Arun Prakash Jana <engineerarun@gmail.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifdef __linux__
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif
#if defined(__arm__) || defined(__i386__)
#define _FILE_OFFSET_BITS 64 /* Support large files on 32-bit */
#endif
#include <sys/inotify.h>
#define LINUX_INOTIFY
#if !defined(__GLIBC__)
#include <sys/types.h>
#endif
#endif
#include <sys/resource.h>
#include <sys/stat.h>
#include <sys/statvfs.h>
#if defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__) || defined(__APPLE__)
#include <sys/types.h>
#include <sys/event.h>
#include <sys/time.h>
#define BSD_KQUEUE
#else
#include <sys/sysmacros.h>
#endif
#include <sys/wait.h>
#include <ctype.h>
#ifdef __linux__ /* Fix failure due to mvaddnwstr() */
#ifndef NCURSES_WIDECHAR
#define NCURSES_WIDECHAR 1
#endif
#elif defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__) || defined(__APPLE__)
#ifndef _XOPEN_SOURCE_EXTENDED
#define _XOPEN_SOURCE_EXTENDED
#endif
#endif
#ifndef __USE_XOPEN /* Fix wcswidth() failure, ncursesw/curses.h includes whcar.h on Ubuntu 14.04 */
#define __USE_XOPEN
#endif
#include <dirent.h>
#include <errno.h>
#include <fcntl.h>
#include <grp.h>
#include <libgen.h>
#include <limits.h>
#ifdef __gnu_hurd__
#define PATH_MAX 4096
#endif
#include <locale.h>
#include <pwd.h>
#include <stdio.h>
#ifndef NORL
#include <readline/history.h>
#include <readline/readline.h>
#endif
#include <regex.h>
#include <signal.h>
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include <time.h>
#include <unistd.h>
#ifndef __USE_XOPEN_EXTENDED
#define __USE_XOPEN_EXTENDED 1
#endif
#include <ftw.h>
#include <wchar.h>
#ifndef S_BLKSIZE
#define S_BLKSIZE 512 /* S_BLKSIZE is missing on Android NDK (Termux) */
#endif
#include "nnn.h"
#ifdef DBGMODE
static int DEBUG_FD;
static int
xprintf(int fd, const char *fmt, ...)
{
char buf[BUFSIZ];
int r;
va_list ap;
va_start(ap, fmt);
r = vsnprintf(buf, sizeof(buf), fmt, ap);
if (r > 0)
r = write(fd, buf, r);
va_end(ap);
return r;
}
static int
enabledbg()
{
FILE *fp = fopen("/tmp/nnn_debug", "w");
if (!fp) {
fprintf(stderr, "debug: open failed! (1)\n");
fp = fopen("./nnn_debug", "w");
if (!fp) {
fprintf(stderr, "debug: open failed! (2)\n");
return -1;
}
}
DEBUG_FD = fileno(fp);
if (DEBUG_FD == -1) {
fprintf(stderr, "debug: open fd failed!\n");
return -1;
}
return 0;
}
static void
disabledbg()
{
close(DEBUG_FD);
}
#define DPRINTF_D(x) xprintf(DEBUG_FD, #x "=%d\n", x)
#define DPRINTF_U(x) xprintf(DEBUG_FD, #x "=%u\n", x)
#define DPRINTF_S(x) xprintf(DEBUG_FD, #x "=%s\n", x)
#define DPRINTF_P(x) xprintf(DEBUG_FD, #x "=%p\n", x)
#else
#define DPRINTF_D(x)
#define DPRINTF_U(x)
#define DPRINTF_S(x)
#define DPRINTF_P(x)
#endif /* DBGMODE */
/* Macro definitions */
#define VERSION "2.3"
#define GENERAL_INFO "BSD 2-Clause\nhttps://github.com/jarun/nnn"
#define LEN(x) (sizeof(x) / sizeof(*(x)))
#undef MIN
#define MIN(x, y) ((x) < (y) ? (x) : (y))
#define ISODD(x) ((x) & 1)
#define TOUPPER(ch) \
(((ch) >= 'a' && (ch) <= 'z') ? ((ch) - 'a' + 'A') : (ch))
#define CMD_LEN_MAX (PATH_MAX + ((NAME_MAX + 1) << 1))
#define CURSR " > "
#define EMPTY " "
#define CURSYM(flag) ((flag) ? CURSR : EMPTY)
#define FILTER '/'
#define REGEX_MAX 128
#define BM_MAX 10
#define ENTRY_INCR 64 /* Number of dir 'entry' structures to allocate per shot */
#define NAMEBUF_INCR 0x1000 /* 64 dir entries at once, avg. 64 chars per filename = 64*64B = 4KB */
#define DESCRIPTOR_LEN 32
#define _ALIGNMENT 0x10 /* 16-byte alignment */
#define _ALIGNMENT_MASK 0xF
#define DIR_OR_LINK_TO_DIR 0x1
#define HOME_LEN_MAX 64
#define CTX_MAX 4
#define DOT_FILTER_LEN 7
#define ASCII_MAX 128
/* Macros to define process spawn behaviour as flags */
#define F_NONE 0x00 /* no flag set */
#define F_MARKER 0x01 /* draw marker to indicate nnn spawned (e.g. shell) */
#define F_NOWAIT 0x02 /* don't wait for child process (e.g. file manager) */
#define F_NOTRACE 0x04 /* suppress stdout and strerr (no traces) */
#define F_SIGINT 0x08 /* restore default SIGINT handler */
#define F_NORMAL 0x80 /* spawn child process in non-curses regular CLI mode */
/* CRC8 macros */
#define WIDTH (sizeof(unsigned char) << 3)
#define TOPBIT (1 << (WIDTH - 1))
#define POLYNOMIAL 0xD8 /* 11011 followed by 0's */
#define CRC8_TABLE_LEN 256
/* Version compare macros */
/*
* states: S_N: normal, S_I: comparing integral part, S_F: comparing
* fractionnal parts, S_Z: idem but with leading Zeroes only
*/
#define S_N 0x0
#define S_I 0x3
#define S_F 0x6
#define S_Z 0x9
/* result_type: VCMP: return diff; VLEN: compare using len_diff/diff */
#define VCMP 2
#define VLEN 3
/* Volume info */
#define FREE 0
#define CAPACITY 1
/* Function macros */
#define exitcurses() endwin()
#define clearprompt() printmsg("")
#define printwarn() printmsg(strerror(errno))
#define istopdir(path) ((path)[1] == '\0' && (path)[0] == '/')
#define copycurname() xstrlcpy(lastname, dents[cur].name, NAME_MAX + 1)
#define settimeout() timeout(1000)
#define cleartimeout() timeout(-1)
#define errexit() printerr(__LINE__)
#define setdirwatch() (cfg.filtermode ? (presel = FILTER) : (dir_changed = TRUE))
/* We don't care about the return value from strcmp() */
#define xstrcmp(a, b) (*(a) != *(b) ? -1 : strcmp((a), (b)))
/* A faster version of xisdigit */
#define xisdigit(c) ((unsigned int) (c) - '0' <= 9)
#ifdef LINUX_INOTIFY
#define EVENT_SIZE (sizeof(struct inotify_event))
#define EVENT_BUF_LEN (1024 * (EVENT_SIZE + 16))
#elif defined(BSD_KQUEUE)
#define NUM_EVENT_SLOTS 1
#define NUM_EVENT_FDS 1
#endif
/* TYPE DEFINITIONS */
typedef unsigned long ulong;
typedef unsigned int uint;
typedef unsigned char uchar;
typedef unsigned short ushort;
/* STRUCTURES */
/* Directory entry */
typedef struct entry {
char *name;
time_t t;
off_t size;
blkcnt_t blocks; /* number of 512B blocks allocated */
mode_t mode;
ushort nlen; /* Length of file name; can be uchar (< NAME_MAX + 1) */
uchar flags; /* Flags specific to the file */
} __attribute__ ((packed, aligned(_ALIGNMENT))) *pEntry;
/* Bookmark */
typedef struct {
int key;
char *loc;
} bm;
/* Settings */
typedef struct {
uint filtermode : 1; /* Set to enter filter mode */
uint mtimeorder : 1; /* Set to sort by time modified */
uint sizeorder : 1; /* Set to sort by file size */
uint apparentsz : 1; /* Set to sort by apparent size (disk usage) */
uint blkorder : 1; /* Set to sort by blocks used (disk usage) */
uint showhidden : 1; /* Set to show hidden files */
uint copymode : 1; /* Set when copying files */
uint autoselect : 1; /* Auto-select dir in nav-as-you-type mode */
uint showdetail : 1; /* Clear to show fewer file info */
uint showcolor : 1; /* Set to show dirs in blue */
uint dircolor : 1; /* Current status of dir color */
uint metaviewer : 1; /* Index of metadata viewer in utils[] */
uint ctxactive : 1; /* Context active or not */
uint reserved : 8;
/* The following settings are global */
uint curctx : 2; /* Current context number */
uint picker : 1; /* Write selection to user-specified file */
uint pickraw : 1; /* Write selection to sdtout before exit */
uint nonavopen : 1; /* Open file on right arrow or `l` */
uint useeditor : 1; /* Use VISUAL to open text files */
uint runscript : 1; /* Choose script to run mode */
uint runctx : 2; /* The context in which script is to be run */
uint restrict0b : 1; /* Restrict 0-byte file opening */
uint filter_re : 1; /* Use regex filters */
} settings;
/* Contexts or workspaces */
typedef struct {
char c_path[PATH_MAX]; /* Current dir */
char c_init[PATH_MAX]; /* Initial dir */
char c_last[PATH_MAX]; /* Last visited dir */
char c_name[NAME_MAX + 1]; /* Current file name */
settings c_cfg; /* Current configuration */
uint color; /* Color code for directories */
} context;
/* GLOBALS */
/* Configuration, contexts */
static settings cfg = {0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1};
static context g_ctx[CTX_MAX] __attribute__ ((aligned));
static struct entry *dents;
static char *pnamebuf, *pcopybuf;
static int ndents, cur, total_dents = ENTRY_INCR;
static uint idle;
static uint idletimeout, copybufpos, copybuflen;
static char *opener;
static char *copier;
static char *editor;
static char *pager, *pager_arg;
static char *shell, *shell_arg;
static char *home;
static blkcnt_t ent_blocks;
static blkcnt_t dir_blocks;
static ulong num_files;
static uint open_max;
static bm bookmark[BM_MAX];
static size_t g_tmpfplen; /* path to tmp files for copy without X, keybind help and file stats */
static uchar g_crc;
static uchar BLK_SHIFT = 9;
static bool interrupted = FALSE;
/* For use in functions which are isolated and don't return the buffer */
static char g_buf[CMD_LEN_MAX] __attribute__ ((aligned));
/* Buffer for file path copy file */
static char g_cppath[PATH_MAX] __attribute__ ((aligned));
/* Buffer to store tmp file path */
static char g_tmpfpath[HOME_LEN_MAX] __attribute__ ((aligned));
#ifdef LINUX_INOTIFY
static int inotify_fd, inotify_wd = -1;
static uint INOTIFY_MASK = IN_ATTRIB | IN_CREATE | IN_DELETE | IN_DELETE_SELF | IN_MODIFY | IN_MOVE_SELF | IN_MOVED_FROM | IN_MOVED_TO;
#elif defined(BSD_KQUEUE)
static int kq, event_fd = -1;
static struct kevent events_to_monitor[NUM_EVENT_FDS];
static uint KQUEUE_FFLAGS = NOTE_DELETE | NOTE_EXTEND | NOTE_LINK | NOTE_RENAME | NOTE_REVOKE | NOTE_WRITE;
static struct timespec gtimeout;
#endif
/* Replace-str for xargs on different platforms */
#if defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__) || defined(__APPLE__)
#define REPLACE_STR 'J'
#elif defined(__linux__) || defined(__CYGWIN__)
#define REPLACE_STR 'I'
#else
#define REPLACE_STR 'I'
#endif
/* Options to identify file mime */
#ifdef __APPLE__
#define FILE_OPTS "-bI"
#else
#define FILE_OPTS "-bi"
#endif
/* Macros for utilities */
#define MEDIAINFO 0
#define EXIFTOOL 1
#define OPENER 2
#define ATOOL 3
#define APACK 4
#define VIDIR 5
#define LOCKER 6
#define UNKNOWN 7
/* Utilities to open files, run actions */
static char * const utils[] = {
"mediainfo",
"exiftool",
#ifdef __APPLE__
"/usr/bin/open",
#elif defined __CYGWIN__
"cygstart",
#else
"xdg-open",
#endif
"atool",
"apack",
"vidir",
#ifdef __APPLE__
"bashlock",
#elif defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__)
"lock",
#else
"vlock",
#endif
"UNKNOWN"
};
#ifdef __linux__
static char cp[] = "cpg -giRp";
static char mv[] = "mvg -gi";
#endif
/* Common strings */
#define STR_NFTWFAIL_ID 0
#define STR_NOHOME_ID 1
#define STR_INPUT_ID 2
#define STR_INVBM_KEY 3
#define STR_DATE_ID 4
#define STR_UNSAFE 5
#define STR_TMPFILE 6
static const char * const messages[] = {
"nftw failed",
"HOME not set",
"no traversal",
"invalid key",
"%F %T %z",
"unsafe cmd",
"/.nnnXXXXXX",
};
/* Supported config env vars */
#define NNN_BMS 0
#define NNN_OPENER 1
#define NNN_CONTEXT_COLORS 2
#define NNN_IDLE_TIMEOUT 3
#define NNN_COPIER 4
#define NNN_SCRIPT 5
#define NNN_NOTE 6
#define NNN_TMPFILE 7
#define NNNLVL 8 /* strings end here */
#define NNN_USE_EDITOR 9 /* flags begin here */
#define NNN_SHOW_HIDDEN 10
#define NNN_NO_AUTOSELECT 11
#define NNN_RESTRICT_NAV_OPEN 12
#define NNN_RESTRICT_0B 13
#ifdef __linux__
#define NNN_CP_MV_PROG 14
#endif
static const char * const env_cfg[] = {
"NNN_BMS",
"NNN_OPENER",
"NNN_CONTEXT_COLORS",
"NNN_IDLE_TIMEOUT",
"NNN_COPIER",
"NNN_SCRIPT",
"NNN_NOTE",
"NNN_TMPFILE",
"NNNLVL",
"NNN_USE_EDITOR",
"NNN_SHOW_HIDDEN",
"NNN_NO_AUTOSELECT",
"NNN_RESTRICT_NAV_OPEN",
"NNN_RESTRICT_0B",
#ifdef __linux__
"NNN_CP_MV_PROG",
#endif
};
/* Required env vars */
#define SHELL 0
#define VISUAL 1
#define EDITOR 2
#define PAGER 3
static const char * const envs[] = {
"SHELL",
"VISUAL",
"EDITOR",
"PAGER",
};
/* Forward declarations */
static void redraw(char *path);
static void spawn(const char *file, const char *arg1, const char *arg2, const char *dir, uchar flag);
static int (*nftw_fn)(const char *fpath, const struct stat *sb, int typeflag, struct FTW *ftwbuf);
/* Functions */
/*
* CRC8 source:
* https://barrgroup.com/Embedded-Systems/How-To/CRC-Calculation-C-Code
*/
static uchar crc8fast(uchar const message[], size_t n)
{
static uchar data, remainder;
static size_t byte;
/* CRC data */
static const uchar crc8table[CRC8_TABLE_LEN] __attribute__ ((aligned)) = {
0, 94, 188, 226, 97, 63, 221, 131, 194, 156, 126, 32, 163, 253, 31, 65,
157, 195, 33, 127, 252, 162, 64, 30, 95, 1, 227, 189, 62, 96, 130, 220,
35, 125, 159, 193, 66, 28, 254, 160, 225, 191, 93, 3, 128, 222, 60, 98,
190, 224, 2, 92, 223, 129, 99, 61, 124, 34, 192, 158, 29, 67, 161, 255,
70, 24, 250, 164, 39, 121, 155, 197, 132, 218, 56, 102, 229, 187, 89, 7,
219, 133, 103, 57, 186, 228, 6, 88, 25, 71, 165, 251, 120, 38, 196, 154,
101, 59, 217, 135, 4, 90, 184, 230, 167, 249, 27, 69, 198, 152, 122, 36,
248, 166, 68, 26, 153, 199, 37, 123, 58, 100, 134, 216, 91, 5, 231, 185,
140, 210, 48, 110, 237, 179, 81, 15, 78, 16, 242, 172, 47, 113, 147, 205,
17, 79, 173, 243, 112, 46, 204, 146, 211, 141, 111, 49, 178, 236, 14, 80,
175, 241, 19, 77, 206, 144, 114, 44, 109, 51, 209, 143, 12, 82, 176, 238,
50, 108, 142, 208, 83, 13, 239, 177, 240, 174, 76, 18, 145, 207, 45, 115,
202, 148, 118, 40, 171, 245, 23, 73, 8, 86, 180, 234, 105, 55, 213, 139,
87, 9, 235, 181, 54, 104, 138, 212, 149, 203, 41, 119, 244, 170, 72, 22,
233, 183, 85, 11, 136, 214, 52, 106, 43, 117, 151, 201, 74, 20, 246, 168,
116, 42, 200, 150, 21, 75, 169, 247, 182, 232, 10, 84, 215, 137, 107, 53,
};
/* Divide the message by the polynomial, a byte at a time */
for (remainder = byte = 0; byte < n; ++byte) {
data = message[byte] ^ (remainder >> (WIDTH - 8));
remainder = crc8table[data] ^ (remainder << 8);
}
/* The final remainder is the CRC */
return remainder;
}
static void sigint_handler(int sig, siginfo_t *siginfo, void *context)
{
interrupted = TRUE;
}
/* Messages show up at the bottom */
static void printmsg(const char *msg)
{
mvprintw(LINES - 1, 0, "%s\n", msg);
}
/* Kill curses and display error before exiting */
static void printerr(int linenum)
{
exitcurses();
fprintf(stderr, "line %d: (%d) %s\n", linenum, errno, strerror(errno));
if (!cfg.picker && g_cppath[0])
unlink(g_cppath);
free(pcopybuf);
exit(1);
}
/* Print prompt on the last line */
static void printprompt(const char *str)
{
clearprompt();
printw(str);
}
static int get_input(const char *prompt)
{
int r;
if (prompt)
printprompt(prompt);
cleartimeout();
r = getch();
settimeout();
return r;
}
static char confirm_force(void)
{
int r = get_input("use force? [y/Y]");
if (r == 'y' || r == 'Y')
return 'f'; /* forceful */
return 'i'; /* interactive */
}
/* Increase the limit on open file descriptors, if possible */
static rlim_t max_openfds(void)
{
struct rlimit rl;
rlim_t limit = getrlimit(RLIMIT_NOFILE, &rl);
if (limit != 0)
return 32;
limit = rl.rlim_cur;
rl.rlim_cur = rl.rlim_max;
/* Return ~75% of max possible */
if (setrlimit(RLIMIT_NOFILE, &rl) == 0) {
limit = rl.rlim_max - (rl.rlim_max >> 2);
/*
* 20K is arbitrary. If the limit is set to max possible
* value, the memory usage increases to more than double.
*/
return limit > 20480 ? 20480 : limit;
}
return limit;
}
/*
* Wrapper to realloc()
* Frees current memory if realloc() fails and returns NULL.
*
* As per the docs, the *alloc() family is supposed to be memory aligned:
* Ubuntu: http://manpages.ubuntu.com/manpages/xenial/man3/malloc.3.html
* macOS: https://developer.apple.com/legacy/library/documentation/Darwin/Reference/ManPages/man3/malloc.3.html
*/
static void *xrealloc(void *pcur, size_t len)
{
static void *pmem;
pmem = realloc(pcur, len);
if (!pmem)
free(pcur);
return pmem;
}
/*
* Just a safe strncpy(3)
* Always null ('\0') terminates if both src and dest are valid pointers.
* Returns the number of bytes copied including terminating null byte.
*/
static size_t xstrlcpy(char *dest, const char *src, size_t n)
{
static ulong *s, *d;
static size_t len, blocks;
static const uint lsize = sizeof(ulong);
static const uint _WSHIFT = (sizeof(ulong) == 8) ? 3 : 2;
if (!src || !dest || !n)
return 0;
len = strlen(src) + 1;
if (n > len)
n = len;
else if (len > n)
/* Save total number of bytes to copy in len */
len = n;
/*
* To enable -O3 ensure src and dest are 16-byte aligned
* More info: http://www.felixcloutier.com/x86/MOVDQA.html
*/
if ((n >= lsize) && (((ulong)src & _ALIGNMENT_MASK) == 0 &&
((ulong)dest & _ALIGNMENT_MASK) == 0)) {
s = (ulong *)src;
d = (ulong *)dest;
blocks = n >> _WSHIFT;
n &= lsize - 1;
while (blocks) {
*d = *s;
++d, ++s;
--blocks;
}
if (!n) {
dest = (char *)d;
*--dest = '\0';
return len;
}
src = (char *)s;
dest = (char *)d;
}
while (--n && (*dest = *src))
++dest, ++src;
if (!n)
*dest = '\0';
return len;
}
/*
* The poor man's implementation of memrchr(3).
* We are only looking for '/' in this program.
* And we are NOT expecting a '/' at the end.
* Ideally 0 < n <= strlen(s).
*/
static void *xmemrchr(uchar *s, uchar ch, size_t n)
{
static uchar *ptr;
if (!s || !n)
return NULL;
ptr = s + n;
do {
--ptr;
if (*ptr == ch)
return ptr;
} while (s != ptr);
return NULL;
}
/*
* The following dirname(3) implementation does not
* modify the input. We use a copy of the original.
*
* Modified from the glibc (GNU LGPL) version.
*/
static char *xdirname(const char *path)
{
static char * const buf = g_buf, *last_slash, *runp;
xstrlcpy(buf, path, PATH_MAX);
/* Find last '/'. */
last_slash = xmemrchr((uchar *)buf, '/', strlen(buf));
if (last_slash != NULL && last_slash != buf && last_slash[1] == '\0') {
/* Determine whether all remaining characters are slashes. */
for (runp = last_slash; runp != buf; --runp)
if (runp[-1] != '/')
break;
/* The '/' is the last character, we have to look further. */
if (runp != buf)
last_slash = xmemrchr((uchar *)buf, '/', runp - buf);
}
if (last_slash != NULL) {
/* Determine whether all remaining characters are slashes. */
for (runp = last_slash; runp != buf; --runp)
if (runp[-1] != '/')
break;
/* Terminate the buffer. */
if (runp == buf) {
/* The last slash is the first character in the string.
* We have to return "/". As a special case we have to
* return "//" if there are exactly two slashes at the
* beginning of the string. See XBD 4.10 Path Name
* Resolution for more information.
*/
if (last_slash == buf + 1)
++last_slash;
else
last_slash = buf + 1;
} else
last_slash = runp;
last_slash[0] = '\0';
} else {
/* This assignment is ill-designed but the XPG specs require to
* return a string containing "." in any case no directory part
* is found and so a static and constant string is required.
*/
buf[0] = '.';
buf[1] = '\0';
}
return buf;
}
static char *xbasename(char *path)
{
static char *base;
base = xmemrchr((uchar *)path, '/', strlen(path));
return base ? base + 1 : path;
}
static uint xatoi(const char *str)
{
int val = 0;
if (!str)
return 0;
while (xisdigit(*str)) {
val = val * 10 + (*str - '0');
++str;
}
return val;
}
static char *xitoa(uint val)
{
static const char hexbuf[] = "0123456789";
static char ascbuf[32] = {0};
static int i;
for (i = 30; val && i; --i, val /= 10)
ascbuf[i] = hexbuf[val % 10];
return &ascbuf[++i];
}
/* Writes buflen char(s) from buf to a file */
static void writecp(const char *buf, const size_t buflen)
{
static FILE *fp;
if (cfg.pickraw)
return;
if (!g_cppath[0])
return;
fp = fopen(g_cppath, "w");
if (fp) {
fwrite(buf, 1, buflen, fp);
fclose(fp);
} else
printwarn();
}
static bool appendfpath(const char *path, const size_t len)
{
if ((copybufpos >= copybuflen) || ((len + 3) > (copybuflen - copybufpos))) {
copybuflen += PATH_MAX;
pcopybuf = xrealloc(pcopybuf, copybuflen);
if (!pcopybuf) {
printmsg("no memory!");
return FALSE;
}
}
/* Enabling the following will miss files with newlines */
/*
* if (copybufpos)
* pcopybuf[copybufpos - 1] = '\n';
*/
copybufpos += xstrlcpy(pcopybuf + copybufpos, path, len);
return TRUE;
}
/* Write selected file paths to fd, linefeed separated */
static ssize_t selectiontofd(int fd)
{
uint lastpos = copybufpos - 1;
char *pbuf = pcopybuf;
ssize_t pos = 0, len, r;
while (pos <= lastpos) {
len = strlen(pbuf);
pos += len;
r = write(fd, pbuf, len);
if (r != len)
return pos;
if (pos <= lastpos) {
if (write(fd, "\n", 1) != 1)
return pos;
pbuf += len + 1;
}
++pos;
}
return pos;
}
static bool showcplist(void)
{
int fd;
ssize_t pos;
if (!copybufpos)
return FALSE;
if (g_tmpfpath[0])
xstrlcpy(g_tmpfpath + g_tmpfplen - 1, messages[STR_TMPFILE],
HOME_LEN_MAX - g_tmpfplen);
else {
printmsg(messages[STR_NOHOME_ID]);
return -1;
}
fd = mkstemp(g_tmpfpath);
if (fd == -1)
return FALSE;
pos = selectiontofd(fd);
close(fd);
if (pos && pos == copybufpos)
spawn(pager, pager_arg, g_tmpfpath, NULL, F_NORMAL);
unlink(g_tmpfpath);
return TRUE;
}
static bool cpsafe(void)
{
/* Fail if copy file path not generated */
if (!g_cppath[0]) {
printmsg("copy file not found");
return FALSE;
}
/* Warn if selection not completed */
if (cfg.copymode) {
printmsg("finish selection first");
return FALSE;
}
/* Fail if copy file path isn't accessible */
if (access(g_cppath, R_OK) == -1) {
printmsg("empty selection list");
return FALSE;
}
return TRUE;
}
/* Initialize curses mode */
static bool initcurses(void)
{
if (cfg.picker) {
if (!newterm(NULL, stderr, stdin)) {
fprintf(stderr, "newterm!\n");
return FALSE;
}
} else if (!initscr()) {
char *term = getenv("TERM");
if (term != NULL)
fprintf(stderr, "error opening TERM: %s\n", term);
else
fprintf(stderr, "initscr!\n");
return FALSE;
}
cbreak();
noecho();
nonl();
intrflush(stdscr, FALSE);
keypad(stdscr, TRUE);
curs_set(FALSE); /* Hide cursor */
start_color();
use_default_colors();
if (cfg.showcolor) {
init_pair(1, g_ctx[0].color, -1);
init_pair(2, g_ctx[1].color, -1);
init_pair(3, g_ctx[2].color, -1);
init_pair(4, g_ctx[3].color, -1);
}
settimeout(); /* One second */
set_escdelay(25);
return TRUE;
}
/*
* Spawns a child process. Behaviour can be controlled using flag.
* Limited to 2 arguments to a program, flag works on bit set.
*/
static void spawn(const char *file, const char *arg1, const char *arg2, const char *dir, uchar flag)
{
pid_t pid;
int status;
const char *tmp;
/* Swap args if the first arg is NULL and second isn't */
if (!arg1 && arg2) {
tmp = arg1;
arg1 = arg2;
arg2 = tmp;
}
if (flag & F_NORMAL)
exitcurses();
pid = fork();
if (pid == 0) {
if (dir != NULL)
status = chdir(dir);
tmp = getenv(env_cfg[NNNLVL]);
/* Show a marker (to indicate nnn spawned shell) */
if (flag & F_MARKER && tmp)
fprintf(stdout, "\n +-++-++-+\n | n n n | %d\n +-++-++-+\n\n", xatoi(tmp));
/* Suppress stdout and stderr */
if (flag & F_NOTRACE) {
int fd = open("/dev/null", O_WRONLY, 0200);
dup2(fd, 1);
dup2(fd, 2);
close(fd);
}
if (flag & F_NOWAIT) {
signal(SIGHUP, SIG_IGN);
signal(SIGPIPE, SIG_IGN);
setsid();
}
if (flag & F_SIGINT)
signal(SIGINT, SIG_DFL);
execlp(file, file, arg1, arg2, NULL);
_exit(1);
} else {
if (!(flag & F_NOWAIT))
/* Ignore interruptions */
while (waitpid(pid, &status, 0) == -1)
DPRINTF_D(status);
DPRINTF_D(pid);
if (flag & F_NORMAL)
refresh();
}
}
/*
* Quotes argument and spawns a shell command
* Uses g_buf
*/
static bool quote_run_sh_cmd(const char *cmd, const char *arg, const char *path)
{
const char *ptr;
size_t r;
if (!cmd)
return FALSE;
r = xstrlcpy(g_buf, cmd, CMD_LEN_MAX);
if (arg) {
if (r >= CMD_LEN_MAX - 4) { /* space for at least 4 chars - space'c' */
printmsg(messages[STR_UNSAFE]);
return FALSE;
}
for (ptr = arg; *ptr; ++ptr)
if (*ptr == '\'') {
printmsg(messages[STR_UNSAFE]);
return FALSE;
}
g_buf[r - 1] = ' ';
g_buf[r] = '\'';
r += xstrlcpy(g_buf + r + 1, arg, CMD_LEN_MAX - 1 - r);
if (r >= CMD_LEN_MAX - 1) {
printmsg(messages[STR_UNSAFE]);
return FALSE;
}
g_buf[r] = '\'';
g_buf[r + 1] = '\0';
}
DPRINTF_S(g_buf);
spawn("sh", "-c", g_buf, path, F_NORMAL);
return TRUE;
}
/* Get program name from env var, else return fallback program */
static char *xgetenv(const char *name, char *fallback)
{
static char *value;
if (name == NULL)
return fallback;
value = getenv(name);
return value && value[0] ? value : fallback;
}
/*
* Parse a string to get program and argument
* NOTE: original string may be modified
*/
static void getprogarg(char *prog, char **arg)
{
char *argptr;
while (*prog && !isblank(*prog))
++prog;
if (*prog) {
*prog = '\0';
*arg = ++prog;
argptr = *arg;
/* Make sure there are no more args */
while (*argptr) {
if (isblank(*argptr)) {
fprintf(stderr, "Too many args [%s]\n", prog);
exit(1);
}
++argptr;
}
}
}
/* Check if a dir exists, IS a dir and is readable */
static bool xdiraccess(const char *path)
{
static DIR *dirp;
dirp = opendir(path);
if (dirp == NULL) {
printwarn();
return FALSE;
}
closedir(dirp);
return TRUE;
}
static int digit_compare(const char *a, const char *b)
{
while (*a && *b && *a == *b)
++a, ++b;
return *a - *b;
}
/*
* We assume none of the strings are NULL.
*
* Let's have the logic to sort numeric names in numeric order.
* E.g., the order '1, 10, 2' doesn't make sense to human eyes.
*
* If the absolute numeric values are same, we fallback to alphasort.
*/
static int xstricmp(const char * const s1, const char * const s2)
{
static const char *c1, *c2, *m1, *m2;
static int count1, count2, bias;
static char sign[2];
count1 = 0;
count2 = 0;
sign[0] = '+';
sign[1] = '+';
c1 = s1;
while (isspace(*c1))
++c1;
c2 = s2;
while (isspace(*c2))
++c2;
if (*c1 == '-' || *c1 == '+') {
if (*c1 == '-')
sign[0] = '-';
++c1;
}
if (*c2 == '-' || *c2 == '+') {
if (*c2 == '-')
sign[1] = '-';
++c2;
}
if (xisdigit(*c1) && xisdigit(*c2)) {
while (*c1 == '0')
++c1;
m1 = c1;
while (*c2 == '0')
++c2;
m2 = c2;
while (xisdigit(*c1)) {
++count1;
++c1;
}
while (isspace(*c1))
++c1;
while (xisdigit(*c2)) {
++count2;
++c2;
}
while (isspace(*c2))
++c2;
if (*c1 && !*c2)
return 1;
if (!*c1 && *c2)
return -1;
if (!*c1 && !*c2) {
if (sign[0] != sign[1])
return ((sign[0] == '+') ? 1 : -1);
if (count1 > count2)
return 1;
if (count1 < count2)
return -1;
bias = digit_compare(m1, m2);
if (bias)
return bias;
}
}
return strcoll(s1, s2);
}
/*
* Version comparison
*
* The code for version compare is a modified version of the GLIBC
* and uClibc implementation of strverscmp(). The source is here:
* https://elixir.bootlin.com/uclibc-ng/latest/source/libc/string/strverscmp.c
*/
/*
* Compare S1 and S2 as strings holding indices/version numbers,
* returning less than, equal to or greater than zero if S1 is less than,
* equal to or greater than S2 (for more info, see the texinfo doc).
*/
static int xstrverscmp(const char * const s1, const char * const s2)
{
static const uchar *p1;
static const uchar *p2;
static uchar c1, c2;
static int state, diff;
p1 = (const uchar *)s1;
p2 = (const uchar *)s2;
/*
* Symbol(s) 0 [1-9] others
* Transition (10) 0 (01) d (00) x
*/
static const uint8_t next_state[] = {
/* state x d 0 */
/* S_N */ S_N, S_I, S_Z,
/* S_I */ S_N, S_I, S_I,
/* S_F */ S_N, S_F, S_F,
/* S_Z */ S_N, S_F, S_Z
};
static const int8_t result_type[] __attribute__ ((aligned)) = {
/* state x/x x/d x/0 d/x d/d d/0 0/x 0/d 0/0 */
/* S_N */ VCMP, VCMP, VCMP, VCMP, VLEN, VCMP, VCMP, VCMP, VCMP,
/* S_I */ VCMP, -1, -1, 1, VLEN, VLEN, 1, VLEN, VLEN,
/* S_F */ VCMP, VCMP, VCMP, VCMP, VCMP, VCMP, VCMP, VCMP, VCMP,
/* S_Z */ VCMP, 1, 1, -1, VCMP, VCMP, -1, VCMP, VCMP
};
if (p1 == p2)
return 0;
c1 = *p1++;
c2 = *p2++;
/* Hint: '0' is a digit too. */
state = S_N + ((c1 == '0') + (xisdigit(c1) != 0));
while ((diff = c1 - c2) == 0) {
if (c1 == '\0')
return diff;
state = next_state[state];
c1 = *p1++;
c2 = *p2++;
state += (c1 == '0') + (xisdigit(c1) != 0);
}
state = result_type[state * 3 + (((c2 == '0') + (xisdigit(c2) != 0)))];
switch (state) {
case VCMP:
return diff;
case VLEN:
while (xisdigit(*p1++))
if (!xisdigit(*p2++))
return 1;
return xisdigit(*p2) ? -1 : diff;
default:
return state;
}
}
static int (*cmpfn)(const char * const s1, const char * const s2) = &xstricmp;
/* Return the integer value of a char representing HEX */
static char xchartohex(char c)
{
if (xisdigit(c))
return c - '0';
c = TOUPPER(c);
if (c >= 'A' && c <= 'F')
return c - 'A' + 10;
return c;
}
static int setfilter(regex_t *regex, char *filter)
{
static size_t len;
static int r;
r = regcomp(regex, filter, REG_NOSUB | REG_EXTENDED | REG_ICASE);
if (r != 0 && filter && filter[0] != '\0') {
len = COLS;
if (len > NAME_MAX)
len = NAME_MAX;
mvprintw(LINES - 1, 0, "regex error: %d\n", r);
}
return r;
}
static int visible_re(regex_t *regex, char *fname, char *fltr)
{
return regexec(regex, fname, 0, NULL, 0) == 0;
}
static int visible_str(regex_t *regex, char *fname, char *fltr)
{
return strcasestr(fname, fltr) != NULL;
}
static int (*filterfn)(regex_t *regex, char *fname, char *fltr) = &visible_re;
static int entrycmp(const void *va, const void *vb)
{
static pEntry pa, pb;
pa = (pEntry)va;
pb = (pEntry)vb;
if ((pb->flags & DIR_OR_LINK_TO_DIR) != (pa->flags & DIR_OR_LINK_TO_DIR)) {
if (pb->flags & DIR_OR_LINK_TO_DIR)
return 1;
return -1;
}
/* Do the actual sorting */
if (cfg.mtimeorder)
return pb->t - pa->t;
if (cfg.sizeorder) {
if (pb->size > pa->size)
return 1;
if (pb->size < pa->size)
return -1;
}
if (cfg.blkorder) {
if (pb->blocks > pa->blocks)
return 1;
if (pb->blocks < pa->blocks)
return -1;
}
return cmpfn(pa->name, pb->name);
}
/*
* Returns SEL_* if key is bound and 0 otherwise.
* Also modifies the run and env pointers (used on SEL_{RUN,RUNARG}).
* The next keyboard input can be simulated by presel.
*/
static int nextsel(int *presel)
{
static int c;
static uint i;
static const uint len = LEN(bindings);
#ifdef LINUX_INOTIFY
static char inotify_buf[EVENT_BUF_LEN];
#elif defined(BSD_KQUEUE)
static struct kevent event_data[NUM_EVENT_SLOTS];
#endif
c = *presel;
if (c == 0) {
c = getch();
DPRINTF_D(c);
} else
*presel = 0;
if (c == -1) {
++idle;
/*
* Do not check for directory changes in du mode.
* A redraw forces du calculation.
* Check for changes every odd second.
*/
#ifdef LINUX_INOTIFY
if (!cfg.blkorder && inotify_wd >= 0 && idle & 1
&& read(inotify_fd, inotify_buf, EVENT_BUF_LEN) > 0)
#elif defined(BSD_KQUEUE)
if (!cfg.blkorder && event_fd >= 0 && idle & 1
&& kevent(kq, events_to_monitor, NUM_EVENT_SLOTS,
event_data, NUM_EVENT_FDS, >imeout) > 0)
#endif
c = CONTROL('L');
} else
idle = 0;
for (i = 0; i < len; ++i)
if (c == bindings[i].sym)
return bindings[i].act;
return 0;
}
static inline void swap_ent(int id1, int id2)
{
static struct entry _dent, *pdent1, *pdent2;;
pdent1 = &dents[id1];
pdent2 = &dents[id2];
*(&_dent) = *pdent1;
*pdent1 = *pdent2;
*pdent2 = *(&_dent);
}
/*
* Move non-matching entries to the end
*/
static int fill(char *fltr, regex_t *re)
{
static int count;
for (count = 0; count < ndents; ++count) {
if (filterfn(re, dents[count].name, fltr) == 0) {
if (count != --ndents) {
swap_ent(count, ndents);
--count;
}
continue;
}
}
return ndents;
}
static int matches(char *fltr)
{
static regex_t re;
/* Search filter */
if (cfg.filter_re && setfilter(&re, fltr) != 0)
return -1;
ndents = fill(fltr, &re);
if (cfg.filter_re)
regfree(&re);
if (!ndents)
return 0;
qsort(dents, ndents, sizeof(*dents), entrycmp);
return 0;
}
static int filterentries(char *path)
{
static char ln[REGEX_MAX] __attribute__ ((aligned));
static wchar_t wln[REGEX_MAX] __attribute__ ((aligned));
static wint_t ch[2] = {0};
int r, total = ndents, oldcur = cur, len = 1;
char *pln = ln + 1;
ln[0] = wln[0] = FILTER;
ln[1] = wln[1] = '\0';
cur = 0;
cleartimeout();
curs_set(TRUE);
printprompt(ln);
while ((r = get_wch(ch)) != ERR) {
switch (*ch) {
case KEY_DC: // fallthrough
case KEY_BACKSPACE: // fallthrough
case '\b': // fallthrough
case CONTROL('L'): // fallthrough
case 127: /* handle DEL */
if (len == 1 && *ch != CONTROL('L')) {
cur = oldcur;
*ch = CONTROL('L');
goto end;
}
if (*ch == CONTROL('L'))
while (len > 1)
wln[--len] = '\0';
else
wln[--len] = '\0';
if (len == 1)
cur = oldcur;
wcstombs(ln, wln, REGEX_MAX);
ndents = total;
if (matches(pln) != -1)
redraw(path);
printprompt(ln);
continue;
case 27: /* Exit filter mode on Escape */
if (len == 1)
cur = oldcur;
*ch = CONTROL('L');
goto end;
}
if (r == OK) {
/* Handle all control chars in main loop */
if (*ch < ASCII_MAX && keyname(*ch)[0] == '^' && *ch != '^') {
if (len == 1)
cur = oldcur;
goto end;
}
switch (*ch) {
case '\r': // with nonl(), this is ENTER key value
if (len == 1) {
cur = oldcur;
goto end;
}
if (matches(pln) == -1)
goto end;
redraw(path);
goto end;
case '?': // '?' is an invalid regex, show help instead
if (len == 1) {
cur = oldcur;
goto end;
} // fallthrough
default:
/* Reset cur in case it's a repeat search */
if (len == 1)
cur = 0;
if (len == REGEX_MAX - 1)
break;
wln[len] = (wchar_t)*ch;
wln[++len] = '\0';
wcstombs(ln, wln, REGEX_MAX);
/* Forward-filtering optimization:
* - new matches can only be a subset of current matches.
*/
/* ndents = total; */
if (matches(pln) == -1)
continue;
/* If the only match is a dir, auto-select and cd into it */
if (ndents == 1 && cfg.filtermode
&& cfg.autoselect && S_ISDIR(dents[0].mode)) {
*ch = KEY_ENTER;
cur = 0;
goto end;
}
/*
* redraw() should be above the auto-select optimization, for
* the case where there's an issue with dir auto-select, say,
* due to a permission problem. The transition is _jumpy_ in
* case of such an error. However, we optimize for successful
* cases where the dir has permissions. This skips a redraw().
*/
redraw(path);
printprompt(ln);
}
} else {
if (len == 1)
cur = oldcur;
goto end;
}
}
end:
curs_set(FALSE);
settimeout();
/* Return keys for navigation etc. */
return *ch;
}
/* Show a prompt with input string and return the changes */
static char *xreadline(char *prefill, char *prompt)
{
size_t len, pos;
int x, y, r;
wint_t ch[2] = {0};
static wchar_t * const buf = (wchar_t *)g_buf;
cleartimeout();
printprompt(prompt);
if (prefill) {
DPRINTF_S(prefill);
len = pos = mbstowcs(buf, prefill, NAME_MAX);
} else
len = (size_t)-1;
if (len == (size_t)-1) {
buf[0] = '\0';
len = pos = 0;
}
getyx(stdscr, y, x);
curs_set(TRUE);
while (1) {
buf[len] = ' ';
mvaddnwstr(y, x, buf, len + 1);
move(y, x + wcswidth(buf, pos));
r = get_wch(ch);
if (r != ERR) {
if (r == OK) {
switch (*ch) {
case KEY_ENTER: // fallthrough
case '\n': // fallthrough
case '\r':
goto END;
case 127: // fallthrough
case '\b': /* rhel25 sends '\b' for backspace */
if (pos > 0) {
memmove(buf + pos - 1, buf + pos, (len - pos) << 2);
--len, --pos;
} // fallthrough
case '\t': /* TAB breaks cursor position, ignore it */
continue;
case CONTROL('L'):
printprompt(prompt);
len = pos = 0;
continue;
case CONTROL('A'):
pos = 0;
continue;
case CONTROL('E'):
pos = len;
continue;
case CONTROL('U'):
printprompt(prompt);
memmove(buf, buf + pos, (len - pos) << 2);
len -= pos;
pos = 0;
continue;
case 27: /* Exit prompt on Escape */
len = 0;
goto END;
}
/* Filter out all other control chars */
if (*ch < ASCII_MAX && keyname(*ch)[0] == '^')
continue;
if (pos < NAME_MAX - 1) {
memmove(buf + pos + 1, buf + pos, (len - pos) << 2);
buf[pos] = *ch;
++len, ++pos;
continue;
}
} else {
switch (*ch) {
case KEY_LEFT:
if (pos > 0)
--pos;
break;
case KEY_RIGHT:
if (pos < len)
++pos;
break;
case KEY_BACKSPACE:
if (pos > 0) {
memmove(buf + pos - 1, buf + pos, (len - pos) << 2);
--len, --pos;
}
break;
case KEY_DC:
if (pos < len) {
memmove(buf + pos, buf + pos + 1,
(len - pos - 1) << 2);
--len;
}
break;
default:
break;
}
}
}
}
END:
curs_set(FALSE);
settimeout();
clearprompt();
buf[len] = '\0';
wcstombs(g_buf + ((NAME_MAX + 1) << 2), buf, NAME_MAX);
return g_buf + ((NAME_MAX + 1) << 2);
}
/*
* Updates out with "dir/name or "/name"
* Returns the number of bytes copied including the terminating NULL byte
*/
static size_t mkpath(char *dir, char *name, char *out)
{
static size_t len;
/* Handle absolute path */
if (name[0] == '/')
return xstrlcpy(out, name, PATH_MAX);
/* Handle root case */
if (istopdir(dir))
len = 1;
else
len = xstrlcpy(out, dir, PATH_MAX);
out[len - 1] = '/';
return (xstrlcpy(out + len, name, PATH_MAX - len) + len);
}
/*
* Create symbolic/hard link(s) to file(s) in selection list
* Returns the number of links created
*/
static int xlink(char *suffix, char *path, char *buf, int type)
{
int count = 0;
char *pbuf = pcopybuf, *fname;
ssize_t pos = 0, len, r;
int (*link_fn)(const char *, const char *) = NULL;
/* Check if selection is empty */
if (!copybufpos)
return 0;
if (type == 's') /* symbolic link */
link_fn = &symlink;
else if (type == 'h') /* hard link */
link_fn = &link;
else
return -1;
while (pos < copybufpos) {
len = strlen(pbuf);
fname = xbasename(pbuf);
r = mkpath(path, fname, buf);
xstrlcpy(buf + r - 1, suffix, PATH_MAX - r - 1);
if (!link_fn(pbuf, buf))
++count;
pos += len + 1;
pbuf += len + 1;
}
return count;
}
static bool parsebmstr(void)
{
int i = 0;
char *bms = getenv(env_cfg[NNN_BMS]);
char *nextkey = bms;
if (!bms || !*bms)
return TRUE;
while (*bms && i < BM_MAX) {
if (bms == nextkey) {
bookmark[i].key = *bms;
if (*++bms != ':')
return FALSE;
if (*++bms == '\0')
return FALSE;
bookmark[i].loc = bms;
++i;
}
if (*bms == ';') {
*bms = '\0';
nextkey = bms + 1;
}
++bms;
}
if (i < BM_MAX) {
if (*bookmark[i - 1].loc == '\0')
return FALSE;
bookmark[i].key = '\0';
}
return TRUE;
}
/*
* Get the real path to a bookmark
*
* NULL is returned in case of no match, path resolution failure etc.
* buf would be modified, so check return value before access
*/
static char *get_bm_loc(int key, char *buf)
{
int r;
ssize_t count;
for (r = 0; bookmark[r].key && r < BM_MAX; ++r) {
if (bookmark[r].key == key) {
if (bookmark[r].loc[0] == '~') {
if (!home) {
DPRINTF_S(messages[STR_NOHOME_ID]);
return NULL;
}
count = xstrlcpy(buf, home, PATH_MAX);
xstrlcpy(buf + count - 1, bookmark[r].loc + 1, PATH_MAX - count - 1);
} else
xstrlcpy(buf, bookmark[r].loc, PATH_MAX);
return buf;
}
}
DPRINTF_S("Invalid key");
return NULL;
}
static void resetdircolor(int flags)
{
if (cfg.dircolor && !(flags & DIR_OR_LINK_TO_DIR)) {
attroff(COLOR_PAIR(cfg.curctx + 1) | A_BOLD);
cfg.dircolor = 0;
}
}
/*
* Replace escape characters in a string with '?'
* Adjust string length to maxcols if > 0;
*
* Interestingly, note that unescape() uses g_buf. What happens if
* str also points to g_buf? In this case we assume that the caller
* acknowledges that it's OK to lose the data in g_buf after this
* call to unescape().
* The API, on its part, first converts str to multibyte (after which
* it doesn't touch str anymore). Only after that it starts modifying
* g_buf. This is a phased operation.
*/
static char *unescape(const char *str, uint maxcols)
{
static wchar_t wbuf[PATH_MAX] __attribute__ ((aligned));
static wchar_t *buf;
static size_t len, lencount;
/* Convert multi-byte to wide char */
len = mbstowcs(wbuf, str, PATH_MAX);
g_buf[0] = '\0';
buf = wbuf;
if (maxcols) {
len = lencount = wcswidth(wbuf, len);
/* Reduce nuber of wide chars to max columns */
if (len > maxcols)
lencount = maxcols + 1;
/* Reduce wide chars one by one till it fits */
while (len > maxcols)
len = wcswidth(wbuf, --lencount);
wbuf[lencount] = L'\0';
}
while (*buf) {
if (*buf <= '\x1f' || *buf == '\x7f')
*buf = '\?';
++buf;
}
/* Convert wide char to multi-byte */
wcstombs(g_buf, wbuf, PATH_MAX);
return g_buf;
}
static char *coolsize(off_t size)
{
static const char * const U = "BKMGTPEZY";
static char size_buf[12]; /* Buffer to hold human readable size */
static off_t rem;
static int i;
i = 0;
rem = 0;
while (size > 1024) {
rem = size & (0x3FF); /* 1024 - 1 = 0x3FF */
size >>= 10;
++i;
}
if (i == 1) {
rem = (rem * 1000) >> 10;
rem /= 10;
if (rem % 10 >= 5) {
rem = (rem / 10) + 1;
if (rem == 10) {
++size;
rem = 0;
}
} else
rem /= 10;
} else if (i == 2) {
rem = (rem * 1000) >> 10;
if (rem % 10 >= 5) {
rem = (rem / 10) + 1;
if (rem == 100) {
++size;
rem = 0;
}
} else
rem /= 10;
} else if (i > 0) {
rem = (rem * 10000) >> 10;
if (rem % 10 >= 5) {
rem = (rem / 10) + 1;
if (rem == 1000) {
++size;
rem = 0;
}
} else
rem /= 10;
}
if (i > 0 && i < 6)
snprintf(size_buf, 12, "%lu.%0*lu%c", (ulong)size, i, (ulong)rem, U[i]);
else
snprintf(size_buf, 12, "%lu%c", (ulong)size, U[i]);
return size_buf;
}
static char *get_file_sym(mode_t mode)
{
static char ind[2] = "\0\0";
switch (mode & S_IFMT) {
case S_IFREG:
if (mode & 0100)
ind[0] = '*';
break;
case S_IFDIR:
ind[0] = '/';
break;
case S_IFLNK:
ind[0] = '@';
break;
case S_IFSOCK:
ind[0] = '=';
break;
case S_IFIFO:
ind[0] = '|';
break;
case S_IFBLK: // fallthrough
case S_IFCHR:
break;
default:
ind[0] = '?';
break;
}
return ind;
}
static void printent(struct entry *ent, int sel, uint namecols)
{
static char *pname;
pname = unescape(ent->name, namecols);
/* Directories are always shown on top */
resetdircolor(ent->flags);
printw("%s%s%s\n", CURSYM(sel), pname, get_file_sym(ent->mode));
}
static void printent_long(struct entry *ent, int sel, uint namecols)
{
static char timebuf[18], permbuf[4], *pname;
/* Timestamp */
strftime(timebuf, 18, "%F %R", localtime(&ent->t));
/* Permissions */
snprintf(permbuf, 4, "%d%d%d", (ent->mode >> 6) & 7, (ent->mode >> 3) & 7, ent->mode & 7);
/* Trim escape chars from name */
pname = unescape(ent->name, namecols);
/* Directories are always shown on top */
resetdircolor(ent->flags);
if (sel)
attron(A_REVERSE);
switch (ent->mode & S_IFMT) {
case S_IFREG:
if (ent->mode & 0100)
printw(" %-16.16s 0%s %8.8s* %s*\n", timebuf, permbuf,
coolsize(cfg.blkorder ? ent->blocks << BLK_SHIFT : ent->size), pname);
else
printw(" %-16.16s 0%s %8.8s %s\n", timebuf, permbuf,
coolsize(cfg.blkorder ? ent->blocks << BLK_SHIFT : ent->size), pname);
break;
case S_IFDIR:
if (cfg.blkorder)
printw(" %-16.16s 0%s %8.8s/ %s/\n",
timebuf, permbuf, coolsize(ent->blocks << BLK_SHIFT), pname);
else
printw(" %-16.16s 0%s / %s/\n", timebuf, permbuf, pname);
break;
case S_IFLNK:
if (ent->flags & DIR_OR_LINK_TO_DIR)
printw(" %-16.16s 0%s @/ %s@\n", timebuf, permbuf, pname);
else
printw(" %-16.16s 0%s @ %s@\n", timebuf, permbuf, pname);
break;
case S_IFSOCK:
printw(" %-16.16s 0%s = %s=\n", timebuf, permbuf, pname);
break;
case S_IFIFO:
printw(" %-16.16s 0%s | %s|\n", timebuf, permbuf, pname);
break;
case S_IFBLK:
printw(" %-16.16s 0%s b %s\n", timebuf, permbuf, pname);
break;
case S_IFCHR:
printw(" %-16.16s 0%s c %s\n", timebuf, permbuf, pname);
break;
default:
printw(" %-16.16s 0%s %8.8s? %s?\n", timebuf, permbuf,
coolsize(cfg.blkorder ? ent->blocks << BLK_SHIFT : ent->size), pname);
break;
}
if (sel)
attroff(A_REVERSE);
}
static void (*printptr)(struct entry *ent, int sel, uint namecols) = &printent_long;
static char get_fileind(mode_t mode, char *desc)
{
static char c;
switch (mode & S_IFMT) {
case S_IFREG:
c = '-';
xstrlcpy(desc, "regular file", DESCRIPTOR_LEN);
if (mode & 0100)
/* Length of string "regular file" is 12 */
xstrlcpy(desc + 12, ", executable", DESCRIPTOR_LEN - 12);
break;
case S_IFDIR:
c = 'd';
xstrlcpy(desc, "directory", DESCRIPTOR_LEN);
break;
case S_IFLNK:
c = 'l';
xstrlcpy(desc, "symbolic link", DESCRIPTOR_LEN);
break;
case S_IFSOCK:
c = 's';
xstrlcpy(desc, "socket", DESCRIPTOR_LEN);
break;
case S_IFIFO:
c = 'p';
xstrlcpy(desc, "FIFO", DESCRIPTOR_LEN);
break;
case S_IFBLK:
c = 'b';
xstrlcpy(desc, "block special device", DESCRIPTOR_LEN);
break;
case S_IFCHR:
c = 'c';
xstrlcpy(desc, "character special device", DESCRIPTOR_LEN);
break;
default:
/* Unknown type -- possibly a regular file? */
c = '?';
desc[0] = '\0';
break;
}
return c;
}
/* Convert a mode field into "ls -l" type perms field. */
static char *get_lsperms(mode_t mode, char *desc)
{
static const char * const rwx[] = {"---", "--x", "-w-", "-wx", "r--", "r-x", "rw-", "rwx"};
static char bits[11] = {'\0'};
bits[0] = get_fileind(mode, desc);
xstrlcpy(&bits[1], rwx[(mode >> 6) & 7], 4);
xstrlcpy(&bits[4], rwx[(mode >> 3) & 7], 4);
xstrlcpy(&bits[7], rwx[(mode & 7)], 4);
if (mode & S_ISUID)
bits[3] = (mode & 0100) ? 's' : 'S'; /* user executable */
if (mode & S_ISGID)
bits[6] = (mode & 0010) ? 's' : 'l'; /* group executable */
if (mode & S_ISVTX)
bits[9] = (mode & 0001) ? 't' : 'T'; /* others executable */
return bits;
}
/*
* Gets only a single line (that's what we need
* for now) or shows full command output in pager.
*
* If page is valid, returns NULL
*/
static char *get_output(char *buf, size_t bytes, char *file, char *arg1, char *arg2, bool page)
{
pid_t pid;
int pipefd[2];
FILE *pf;
int tmp, flags;
char *ret = NULL;
if (pipe(pipefd) == -1)
errexit();
for (tmp = 0; tmp < 2; ++tmp) {
/* Get previous flags */
flags = fcntl(pipefd[tmp], F_GETFL, 0);
/* Set bit for non-blocking flag */
flags |= O_NONBLOCK;
/* Change flags on fd */
fcntl(pipefd[tmp], F_SETFL, flags);
}
pid = fork();
if (pid == 0) {
/* In child */
close(pipefd[0]);
dup2(pipefd[1], STDOUT_FILENO);
dup2(pipefd[1], STDERR_FILENO);
close(pipefd[1]);
execlp(file, file, arg1, arg2, NULL);
_exit(1);
}
/* In parent */
waitpid(pid, &tmp, 0);
close(pipefd[1]);
if (!page) {
pf = fdopen(pipefd[0], "r");
if (pf) {
ret = fgets(buf, bytes, pf);
close(pipefd[0]);
}
return ret;
}
pid = fork();
if (pid == 0) {
/* Show in pager in child */
dup2(pipefd[0], STDIN_FILENO);
close(pipefd[0]);
execlp(pager, pager, NULL);
_exit(1);
}
/* In parent */
waitpid(pid, &tmp, 0);
close(pipefd[0]);
return NULL;
}
static bool getutil(char *util)
{
if (!get_output(g_buf, CMD_LEN_MAX, "which", util, NULL, FALSE))
return FALSE;
return TRUE;
}
static char *xgetpwuid(uid_t uid)
{
struct passwd *pwd = getpwuid(uid);
if (!pwd)
return utils[UNKNOWN];
return pwd->pw_name;
}
static char *xgetgrgid(gid_t gid)
{
struct group *grp = getgrgid(gid);
if (!grp)
return utils[UNKNOWN];
return grp->gr_name;
}
/*
* Follows the stat(1) output closely
*/
static bool show_stats(char *fpath, char *fname, struct stat *sb)
{
char desc[DESCRIPTOR_LEN];
char *perms = get_lsperms(sb->st_mode, desc);
char *p, *begin = g_buf;
if (g_tmpfpath[0])
xstrlcpy(g_tmpfpath + g_tmpfplen - 1, messages[STR_TMPFILE],
HOME_LEN_MAX - g_tmpfplen);
else {
printmsg(messages[STR_NOHOME_ID]);
return FALSE;
}
int fd = mkstemp(g_tmpfpath);
if (fd == -1)
return FALSE;
dprintf(fd, " File: '%s'", unescape(fname, 0));
/* Show file name or 'symlink' -> 'target' */
if (perms[0] == 'l') {
/* Note that CMD_LEN_MAX > PATH_MAX */
ssize_t len = readlink(fpath, g_buf, CMD_LEN_MAX);
if (len != -1) {
struct stat tgtsb;
if (!stat(fpath, &tgtsb) && S_ISDIR(tgtsb.st_mode))
g_buf[len++] = '/';
g_buf[len] = '\0';
/*
* We pass g_buf but unescape() operates on g_buf too!
* Read the API notes for information on how this works.
*/
dprintf(fd, " -> '%s'", unescape(g_buf, 0));
}
}
/* Show size, blocks, file type */
#if defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__) || defined(__APPLE__)
dprintf(fd, "\n Size: %-15lld Blocks: %-10lld IO Block: %-6d %s",
(long long)sb->st_size, (long long)sb->st_blocks, sb->st_blksize, desc);
#else
dprintf(fd, "\n Size: %-15ld Blocks: %-10ld IO Block: %-6ld %s",
sb->st_size, sb->st_blocks, (long)sb->st_blksize, desc);
#endif
/* Show containing device, inode, hardlink count */
snprintf(g_buf, 32, "%lxh/%lud", (ulong)sb->st_dev, (ulong)sb->st_dev);
#if defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__) || defined(__APPLE__)
dprintf(fd, "\n Device: %-15s Inode: %-11llu Links: %-9hu",
g_buf, (unsigned long long)sb->st_ino, sb->st_nlink);
#else
dprintf(fd, "\n Device: %-15s Inode: %-11lu Links: %-9lu",
g_buf, sb->st_ino, (ulong)sb->st_nlink);
#endif
/* Show major, minor number for block or char device */
if (perms[0] == 'b' || perms[0] == 'c')
dprintf(fd, " Device type: %x,%x", major(sb->st_rdev), minor(sb->st_rdev));
/* Show permissions, owner, group */
dprintf(fd, "\n Access: 0%d%d%d/%s Uid: (%u/%s) Gid: (%u/%s)",
(sb->st_mode >> 6) & 7, (sb->st_mode >> 3) & 7,
sb->st_mode & 7, perms, sb->st_uid, xgetpwuid(sb->st_uid),
sb->st_gid, xgetgrgid(sb->st_gid));
/* Show last access time */
strftime(g_buf, 40, messages[STR_DATE_ID], localtime(&sb->st_atime));
dprintf(fd, "\n\n Access: %s", g_buf);
/* Show last modification time */
strftime(g_buf, 40, messages[STR_DATE_ID], localtime(&sb->st_mtime));
dprintf(fd, "\n Modify: %s", g_buf);
/* Show last status change time */
strftime(g_buf, 40, messages[STR_DATE_ID], localtime(&sb->st_ctime));
dprintf(fd, "\n Change: %s", g_buf);
if (S_ISREG(sb->st_mode)) {
/* Show file(1) output */
p = get_output(g_buf, CMD_LEN_MAX, "file", "-b", fpath, FALSE);
if (p) {
dprintf(fd, "\n\n ");
while (*p) {
if (*p == ',') {
*p = '\0';
dprintf(fd, " %s\n", begin);
begin = p + 1;
}
++p;
}
dprintf(fd, " %s", begin);
}
dprintf(fd, "\n\n");
} else
dprintf(fd, "\n\n\n");
close(fd);
spawn(pager, pager_arg, g_tmpfpath, NULL, F_NORMAL);
unlink(g_tmpfpath);
return TRUE;
}
static size_t get_fs_info(const char *path, bool type)
{
static struct statvfs svb;
if (statvfs(path, &svb) == -1)
return 0;
if (type == CAPACITY)
return svb.f_blocks << ffs(svb.f_bsize >> 1);
return svb.f_bavail << ffs(svb.f_frsize >> 1);
}
static bool show_mediainfo(char *fpath, char *arg)
{
if (!getutil(utils[cfg.metaviewer]))
return FALSE;
exitcurses();
get_output(NULL, 0, utils[cfg.metaviewer], fpath, arg, TRUE);
refresh();
return TRUE;
}
static bool handle_archive(char *fpath, char *arg, char *dir)
{
if (!getutil(utils[ATOOL]))
return FALSE;
if (arg[1] == 'x')
spawn(utils[ATOOL], arg, fpath, dir, F_NORMAL);
else {
exitcurses();
get_output(NULL, 0, utils[ATOOL], arg, fpath, TRUE);
refresh();
}
return TRUE;
}
/*
* The help string tokens (each line) start with a HEX value
* which indicates the number of spaces to print before the
* particular token. This method was chosen instead of a flat
* string because the number of bytes in help was increasing
* the binary size by around a hundred bytes. This would only
* have increased as we keep adding new options.
*/
static bool show_help(char *path)
{
int i = 0, fd;
char *start, *end;
if (g_tmpfpath[0])
xstrlcpy(g_tmpfpath + g_tmpfplen - 1, messages[STR_TMPFILE],
HOME_LEN_MAX - g_tmpfplen);
else {
printmsg(messages[STR_NOHOME_ID]);
return FALSE;
}
fd = mkstemp(g_tmpfpath);
static char helpstr[] = {
"0\n"
"1NAVIGATION\n"
"a↑ k Up PgUp ^U Scroll up\n"
"a↓ j Down PgDn ^D Scroll down\n"
"a← h Parent dir ~ Go HOME\n"
"8↵ → l Open file/dir & Start dir\n"
"4Home g ^A First entry - Last visited dir\n"
"5End G ^E Last entry . Toggle show hidden\n"
"c/ Filter Ins ^T Toggle nav-as-you-type\n"
"cb Pin current dir ^B Go to pinned dir\n"
"7Tab ^I Next context d Toggle detail view\n"
"9, ^/ Leader key N LeadN Enter context N\n"
"aEsc Exit prompt ^L Redraw/clear prompt\n"
"b^G Quit and cd q Quit context\n"
"9Q ^Q Quit ? Help, config\n"
"1FILES\n"
"b^O Open with... n Create new/link\n"
"cD File details ^R Rename entry\n"
"5⎵ ^K / Y Select entry/all r Open dir in vidir\n"
"9K ^Y Toggle selection y List selection\n"
"cP Copy selection X Delete selection\n"
"cV Move selection ^X Delete entry\n"
"cf Create archive m M Brief/full mediainfo\n"
"b^F Extract archive F List archive\n"
"ce Edit in EDITOR p Open in PAGER\n"
"1ORDER TOGGLES\n"
"b^J Disk usage S Apparent du\n"
"ct Time modified s Size\n"
"1MISC\n"
"9! ^] Spawn SHELL C Execute entry\n"
"9R ^V Run/pick script L Lock terminal\n"
"b^P Command prompt ^N Take note\n"};
if (fd == -1)
return FALSE;
start = end = helpstr;
while (*end) {
if (*end == '\n') {
dprintf(fd, "%*c%.*s",
xchartohex(*start), ' ', (int)(end - start), start + 1);
start = end + 1;
}
++end;
}
dprintf(fd, "\nVOLUME: %s of ", coolsize(get_fs_info(path, FREE)));
dprintf(fd, "%s free\n\n", coolsize(get_fs_info(path, CAPACITY)));
if (bookmark[0].loc) {
dprintf(fd, "BOOKMARKS\n");
for (; i < BM_MAX; ++i)
if (bookmark[i].key)
dprintf(fd, " %c: %s\n", (char)bookmark[i].key, bookmark[i].loc);
else
break;
dprintf(fd, "\n");
}
for (i = NNN_OPENER; i <= NNN_RESTRICT_0B; ++i) {
start = getenv(env_cfg[i]);
if (start) {
if (i < NNN_USE_EDITOR)
dprintf(fd, "%s: %s\n", env_cfg[i], start);
else
dprintf(fd, "%s: 1\n", env_cfg[i]);
}
}
if (g_cppath[0])
dprintf(fd, "COPY FILE: %s\n", g_cppath);
dprintf(fd, "\nv%s\n%s\n", VERSION, GENERAL_INFO);
close(fd);
spawn(pager, pager_arg, g_tmpfpath, NULL, F_NORMAL);
unlink(g_tmpfpath);
return TRUE;
}
static int sum_bsizes(const char *fpath, const struct stat *sb,
int typeflag, struct FTW *ftwbuf)
{
if (sb->st_blocks && (typeflag == FTW_F || typeflag == FTW_D))
ent_blocks += sb->st_blocks;
++num_files;
return 0;
}
static int sum_sizes(const char *fpath, const struct stat *sb,
int typeflag, struct FTW *ftwbuf)
{
if (sb->st_size && (typeflag == FTW_F || typeflag == FTW_D))
ent_blocks += sb->st_size;
++num_files;
return 0;
}
static void dentfree(struct entry *dents)
{
free(pnamebuf);
free(dents);
}
static int dentfill(char *path, struct entry **dents)
{
static DIR *dirp;
static struct dirent *dp;
static char *namep, *pnb;
static struct entry *dentp;
static size_t off, namebuflen = NAMEBUF_INCR;
static ulong num_saved;
static int fd, n, count;
static struct stat sb_path, sb;
off = 0;
dirp = opendir(path);
if (dirp == NULL)
return 0;
fd = dirfd(dirp);
n = 0;
if (cfg.blkorder) {
num_files = 0;
dir_blocks = 0;
if (fstatat(fd, ".", &sb_path, 0) == -1) {
printwarn();
return 0;
}
}
while ((dp = readdir(dirp)) != NULL) {
namep = dp->d_name;
/* Skip self and parent */
if ((namep[0] == '.' && (namep[1] == '\0' ||
(namep[1] == '.' && namep[2] == '\0'))))
continue;
if (!cfg.showhidden && namep[0] == '.') {
if (!cfg.blkorder)
continue;
if (fstatat(fd, namep, &sb, AT_SYMLINK_NOFOLLOW) == -1)
continue;
if (S_ISDIR(sb.st_mode)) {
if (sb_path.st_dev == sb.st_dev) {
ent_blocks = 0;
mkpath(path, namep, g_buf);
mvprintw(LINES - 1, 0, "scanning %s [^C aborts]\n", xbasename(g_buf));
refresh();
if (nftw(g_buf, nftw_fn, open_max,
FTW_MOUNT | FTW_PHYS) == -1) {
printmsg(messages[STR_NFTWFAIL_ID]);
dir_blocks += (cfg.apparentsz
? sb.st_size
: sb.st_blocks);
} else
dir_blocks += ent_blocks;
if (interrupted)
return n;
}
} else {
dir_blocks += (cfg.apparentsz ? sb.st_size : sb.st_blocks);
++num_files;
}
continue;
}
if (fstatat(fd, namep, &sb, AT_SYMLINK_NOFOLLOW) == -1) {
DPRINTF_S(namep);
continue;
}
if (n == total_dents) {
total_dents += ENTRY_INCR;
*dents = xrealloc(*dents, total_dents * sizeof(**dents));
if (*dents == NULL) {
free(pnamebuf);
errexit();
}
DPRINTF_P(*dents);
}
/* If not enough bytes left to copy a file name of length NAME_MAX, re-allocate */
if (namebuflen - off < NAME_MAX + 1) {
namebuflen += NAMEBUF_INCR;
pnb = pnamebuf;
pnamebuf = (char *)xrealloc(pnamebuf, namebuflen);
if (pnamebuf == NULL) {
free(*dents);
errexit();
}
DPRINTF_P(pnamebuf);
/* realloc() may result in memory move, we must re-adjust if that happens */
if (pnb != pnamebuf) {
dentp = *dents;
dentp->name = pnamebuf;
for (count = 1; count < n; ++dentp, ++count)
/* Current filename starts at last filename start + length */
(dentp + 1)->name = (char *)((size_t)dentp->name
+ dentp->nlen);
}
}
dentp = *dents + n;
/* Copy file name */
dentp->name = (char *)((size_t)pnamebuf + off);
dentp->nlen = xstrlcpy(dentp->name, namep, NAME_MAX + 1);
off += dentp->nlen;
/* Copy other fields */
dentp->mode = sb.st_mode;
dentp->t = sb.st_mtime;
dentp->size = sb.st_size;
if (cfg.blkorder) {
if (S_ISDIR(sb.st_mode)) {
ent_blocks = 0;
num_saved = num_files + 1;
mkpath(path, namep, g_buf);
mvprintw(LINES - 1, 0, "scanning %s [^C aborts]\n", xbasename(g_buf));
refresh();
if (nftw(g_buf, nftw_fn, open_max, FTW_MOUNT | FTW_PHYS) == -1) {
printmsg(messages[STR_NFTWFAIL_ID]);
dentp->blocks = (cfg.apparentsz ? sb.st_size : sb.st_blocks);
} else
dentp->blocks = ent_blocks;
if (sb_path.st_dev == sb.st_dev)
dir_blocks += dentp->blocks;
else
num_files = num_saved;
if (interrupted)
return n;
} else {
dentp->blocks = (cfg.apparentsz ? sb.st_size : sb.st_blocks);
dir_blocks += dentp->blocks;
++num_files;
}
}
/* Flag if this is a dir or symlink to a dir */
if (S_ISDIR(sb.st_mode))
dentp->flags |= DIR_OR_LINK_TO_DIR;
else if (!S_ISLNK(sb.st_mode)) {
if (dentp->flags & DIR_OR_LINK_TO_DIR)
dentp->flags &= ~DIR_OR_LINK_TO_DIR;
} else {
if (!fstatat(fd, namep, &sb, 0)) {
if (S_ISDIR(sb.st_mode))
dentp->flags |= DIR_OR_LINK_TO_DIR;
else
dentp->flags &= ~DIR_OR_LINK_TO_DIR;
}
}
++n;
}
/* Should never be null */
if (closedir(dirp) == -1) {
dentfree(*dents);
errexit();
}
return n;
}
/*
* Return the position of the matching entry or 0 otherwise
* Note there's no NULL check for fname
*/
static int dentfind(const char *fname, int n)
{
static int i;
DPRINTF_S(fname);
for (i = 0; i < n; ++i)
if (xstrcmp(fname, dents[i].name) == 0)
return i;
return 0;
}
static void populate(char *path, char *lastname)
{
#ifdef DBGMODE
struct timespec ts1, ts2;
clock_gettime(CLOCK_REALTIME, &ts1); /* Use CLOCK_MONOTONIC on FreeBSD */
#endif
ndents = dentfill(path, &dents);
if (!ndents)
return;
qsort(dents, ndents, sizeof(*dents), entrycmp);
#ifdef DBGMODE
clock_gettime(CLOCK_REALTIME, &ts2);
DPRINTF_U(ts2.tv_nsec - ts1.tv_nsec);
#endif
/* Find cur from history */
/* No NULL check for lastname, always points to an array */
if (!*lastname)
cur = 0;
else
cur = dentfind(lastname, ndents);
}
static void redraw(char *path)
{
static char buf[NAME_MAX + 65] __attribute__ ((aligned));
static size_t ncols;
static int nlines, i, attrs;
static bool mode_changed;
mode_changed = FALSE;
nlines = MIN(LINES - 4, ndents);
/* Clear screen */
erase();
#ifdef DIR_LIMITED_COPY
if (cfg.copymode)
if (g_crc != crc8fast((uchar *)dents, ndents * sizeof(struct entry))) {
cfg.copymode = 0;
DPRINTF_S("selection off");
}
#endif
/* Fail redraw if < than 11 columns, context info prints 10 chars */
if (COLS < 11) {
printmsg("too few columns!");
return;
}
/* Strip trailing slashes */
for (i = strlen(path) - 1; i > 0; --i)
if (path[i] == '/')
path[i] = '\0';
else
break;
DPRINTF_D(cur);
DPRINTF_S(path);
if (!realpath(path, g_buf)) {
printwarn();
return;
}
ncols = COLS;
if (ncols > PATH_MAX)
ncols = PATH_MAX;
printw("[");
for (i = 0; i < CTX_MAX; ++i) {
if (!g_ctx[i].c_cfg.ctxactive)
printw("%d ", i + 1);
else if (cfg.curctx != i) {
if (cfg.showcolor)
attrs = COLOR_PAIR(i + 1) | A_BOLD | A_UNDERLINE;
else
attrs = A_UNDERLINE;
attron(attrs);
printw("%d", i + 1);
attroff(attrs);
printw(" ");
} else {
/* Print current context in reverse */
if (cfg.showcolor)
attrs = COLOR_PAIR(i + 1) | A_BOLD | A_REVERSE;
else
attrs = A_REVERSE;
attron(attrs);
printw("%d", i + 1);
attroff(attrs);
printw(" ");
}
}
printw("\b] "); /* 10 chars printed in total for contexts - "[1 2 3 4] " */
attron(A_UNDERLINE);
/* No text wrapping in cwd line */
g_buf[ncols - 11] = '\0';
printw("%s\n\n", g_buf);
attroff(A_UNDERLINE);
/* Fallback to light mode if less than 35 columns */
if (ncols < 41 && cfg.showdetail) {
cfg.showdetail ^= 1;
printptr = &printent;
mode_changed = TRUE;
}
/* Calculate the number of cols available to print entry name */
if (cfg.showdetail)
ncols -= 36;
else
ncols -= 5;
if (cfg.showcolor) {
attron(COLOR_PAIR(cfg.curctx + 1) | A_BOLD);
cfg.dircolor = 1;
}
/* Print listing */
if (cur < (nlines >> 1)) {
for (i = 0; i < nlines; ++i)
printptr(&dents[i], i == cur, ncols);
} else if (cur >= ndents - (nlines >> 1)) {
for (i = ndents - nlines; i < ndents; ++i)
printptr(&dents[i], i == cur, ncols);
} else {
static int odd;
odd = ISODD(nlines);
nlines >>= 1;
for (i = cur - nlines; i < cur + nlines + odd; ++i)
printptr(&dents[i], i == cur, ncols);
}
/* Must reset e.g. no files in dir */
if (cfg.dircolor) {
attroff(COLOR_PAIR(cfg.curctx + 1) | A_BOLD);
cfg.dircolor = 0;
}
if (cfg.showdetail) {
if (ndents) {
static char sort[9];
if (cfg.mtimeorder)
xstrlcpy(sort, "by time ", 9);
else if (cfg.sizeorder)
xstrlcpy(sort, "by size ", 9);
else
sort[0] = '\0';
/* We need to show filename as it may be truncated in directory listing */
if (!cfg.blkorder)
snprintf(buf, NAME_MAX + 65, "%d/%d %s[%s]",
cur + 1, ndents, sort, unescape(dents[cur].name, NAME_MAX));
else {
i = snprintf(buf, 64, "%d/%d ", cur + 1, ndents);
if (cfg.apparentsz)
buf[i++] = 'a';
else
buf[i++] = 'd';
i += snprintf(buf + i, 64, "u: %s (%lu files) ",
coolsize(dir_blocks << BLK_SHIFT), num_files);
snprintf(buf + i, NAME_MAX, "vol: %s free [%s]",
coolsize(get_fs_info(path, FREE)),
unescape(dents[cur].name, NAME_MAX));
}
printmsg(buf);
} else
printmsg("0/0");
}
if (mode_changed) {
cfg.showdetail ^= 1;
printptr = &printent_long;
}
}
static void browse(char *ipath)
{
char newpath[PATH_MAX] __attribute__ ((aligned));
char mark[PATH_MAX] __attribute__ ((aligned));
char rundir[PATH_MAX] __attribute__ ((aligned));
char runfile[NAME_MAX + 1] __attribute__ ((aligned));
char *path, *lastdir, *lastname;
char *dir, *tmp;
static char *scriptpath;
struct stat sb;
int r = -1, fd, presel, ncp = 0, copystartid = 0, copyendid = 0;
enum action sel;
bool dir_changed = FALSE;
/* setup first context */
xstrlcpy(g_ctx[0].c_path, ipath, PATH_MAX); /* current directory */
path = g_ctx[0].c_path;
xstrlcpy(g_ctx[0].c_init, ipath, PATH_MAX); /* start directory */
g_ctx[0].c_last[0] = g_ctx[0].c_name[0] = newpath[0] = mark[0] = '\0';
rundir[0] = runfile[0] = '\0';
lastdir = g_ctx[0].c_last; /* last visited directory */
lastname = g_ctx[0].c_name; /* last visited filename */
g_ctx[0].c_cfg = cfg; /* current configuration */
cfg.filtermode ? (presel = FILTER) : (presel = 0);
dents = xrealloc(dents, total_dents * sizeof(struct entry));
if (dents == NULL)
errexit();
/* Allocate buffer to hold names */
pnamebuf = (char *)xrealloc(pnamebuf, NAMEBUF_INCR);
if (pnamebuf == NULL) {
free(dents);
errexit();
}
begin:
#ifdef LINUX_INOTIFY
if ((presel == FILTER || dir_changed) && inotify_wd >= 0) {
inotify_rm_watch(inotify_fd, inotify_wd);
inotify_wd = -1;
dir_changed = FALSE;
}
#elif defined(BSD_KQUEUE)
if ((presel == FILTER || dir_changed) && event_fd >= 0) {
close(event_fd);
event_fd = -1;
dir_changed = FALSE;
}
#endif
/* Can fail when permissions change while browsing.
* It's assumed that path IS a directory when we are here.
*/
if (access(path, R_OK) == -1) {
printwarn();
goto nochange;
}
populate(path, lastname);
if (interrupted) {
interrupted = FALSE;
cfg.apparentsz = 0;
cfg.blkorder = 0;
BLK_SHIFT = 9;
presel = CONTROL('L');
}
#ifdef LINUX_INOTIFY
if (presel != FILTER && inotify_wd == -1)
inotify_wd = inotify_add_watch(inotify_fd, path, INOTIFY_MASK);
#elif defined(BSD_KQUEUE)
if (presel != FILTER && event_fd == -1) {
#if defined(O_EVTONLY)
event_fd = open(path, O_EVTONLY);
#else
event_fd = open(path, O_RDONLY);
#endif
if (event_fd >= 0)
EV_SET(&events_to_monitor[0], event_fd, EVFILT_VNODE,
EV_ADD | EV_CLEAR, KQUEUE_FFLAGS, 0, path);
}
#endif
while (1) {
redraw(path);
nochange:
/* Exit if parent has exited */
if (getppid() == 1)
_exit(0);
sel = nextsel(&presel);
switch (sel) {
case SEL_BACK:
/* There is no going back */
if (istopdir(path)) {
/* Continue in navigate-as-you-type mode, if enabled */
if (cfg.filtermode)
presel = FILTER;
goto nochange;
}
dir = xdirname(path);
if (access(dir, R_OK) == -1) {
printwarn();
goto nochange;
}
/* Save history */
xstrlcpy(lastname, xbasename(path), NAME_MAX + 1);
/* Save last working directory */
xstrlcpy(lastdir, path, PATH_MAX);
xstrlcpy(path, dir, PATH_MAX);
setdirwatch();
goto begin;
case SEL_NAV_IN: // fallthrough
case SEL_GOIN:
/* Cannot descend in empty directories */
if (!ndents)
goto begin;
mkpath(path, dents[cur].name, newpath);
DPRINTF_S(newpath);
/* Cannot use stale data in entry, file may be missing by now */
if (stat(newpath, &sb) == -1) {
printwarn();
goto nochange;
}
DPRINTF_U(sb.st_mode);
switch (sb.st_mode & S_IFMT) {
case S_IFDIR:
if (access(newpath, R_OK) == -1) {
printwarn();
goto nochange;
}
/* Save last working directory */
xstrlcpy(lastdir, path, PATH_MAX);
xstrlcpy(path, newpath, PATH_MAX);
lastname[0] = '\0';
setdirwatch();
goto begin;
case S_IFREG:
{
/* If opened as vim plugin and Enter/^M pressed, pick */
if (cfg.picker && sel == SEL_GOIN) {
r = mkpath(path, dents[cur].name, newpath);
appendfpath(newpath, r);
writecp(pcopybuf, copybufpos - 1);
dentfree(dents);
return;
}
/* If open file is disabled on right arrow or `l`, return */
if (cfg.nonavopen && sel == SEL_NAV_IN)
continue;
/* Handle script selection mode */
if (cfg.runscript) {
if (!scriptpath || (cfg.runctx != cfg.curctx)
/* Must be in script directory to select script */
|| (strcmp(path, scriptpath) != 0))
continue;
mkpath(path, dents[cur].name, newpath);
xstrlcpy(path, rundir, PATH_MAX);
if (runfile[0]) {
xstrlcpy(lastname, runfile, NAME_MAX);
spawn(shell, newpath, lastname, path,
F_NORMAL | F_SIGINT);
runfile[0] = '\0';
} else
spawn(shell, newpath, NULL, path, F_NORMAL | F_SIGINT);
rundir[0] = '\0';
cfg.runscript = 0;
setdirwatch();
goto begin;
}
/* If NNN_USE_EDITOR is set, open text in EDITOR */
if (cfg.useeditor &&
get_output(g_buf, CMD_LEN_MAX, "file", FILE_OPTS, newpath, FALSE)
&& g_buf[0] == 't' && g_buf[1] == 'e' && g_buf[2] == 'x'
&& g_buf[3] == g_buf[0] && g_buf[4] == '/') {
if (!quote_run_sh_cmd(editor, newpath, path))
goto nochange;
continue;
}
if (!sb.st_size && cfg.restrict0b) {
printmsg("empty: use edit or open with");
goto nochange;
}
/* Invoke desktop opener as last resort */
spawn(opener, newpath, NULL, NULL, F_NOWAIT | F_NOTRACE);
continue;
}
default:
printmsg("unsupported file");
goto nochange;
}
case SEL_NEXT:
if (cur < ndents - 1)
++cur;
else if (ndents)
/* Roll over, set cursor to first entry */
cur = 0;
break;
case SEL_PREV:
if (cur > 0)
--cur;
else if (ndents)
/* Roll over, set cursor to last entry */
cur = ndents - 1;
break;
case SEL_PGDN:
if (cur < ndents - 1)
cur += MIN((LINES - 4) / 2, ndents - 1 - cur);
break;
case SEL_PGUP:
if (cur > 0)
cur -= MIN((LINES - 4) / 2, cur);
break;
case SEL_HOME:
cur = 0;
break;
case SEL_END:
cur = ndents - 1;
break;
case SEL_CDHOME: // fallthrough
case SEL_CDBEGIN: // fallthrough
case SEL_CDLAST: // fallthrough
case SEL_VISIT:
switch (sel) {
case SEL_CDHOME:
home ? (dir = home) : (dir = path);
break;
case SEL_CDBEGIN:
dir = ipath;
break;
case SEL_CDLAST:
dir = lastdir;
break;
default: /* case SEL_VISIT */
dir = mark;
break;
}
if (dir[0] == '\0') {
printmsg("not set");
goto nochange;
}
if (!xdiraccess(dir))
goto nochange;
if (strcmp(path, dir) == 0)
break;
/* SEL_CDLAST: dir pointing to lastdir */
xstrlcpy(newpath, dir, PATH_MAX);
/* Save last working directory */
xstrlcpy(lastdir, path, PATH_MAX);
xstrlcpy(path, newpath, PATH_MAX);
lastname[0] = '\0';
DPRINTF_S(path);
setdirwatch();
goto begin;
case SEL_LEADER: // fallthrough
case SEL_CYCLE: // fallthrough
case SEL_CTX1: // fallthrough
case SEL_CTX2: // fallthrough
case SEL_CTX3: // fallthrough
case SEL_CTX4:
if (sel == SEL_CYCLE)
fd = '>';
else if (sel >= SEL_CTX1 && sel <= SEL_CTX4)
fd = sel - SEL_CTX1 + '1';
else
fd = get_input(NULL);
switch (fd) {
case 'q': // fallthrough
case '~': // fallthrough
case '-': // fallthrough
case '&':
presel = fd;
goto nochange;
case '>': // fallthrough
case '.': // fallthrough
case '<': // fallthrough
case ',':
r = cfg.curctx;
if (fd == '>' || fd == '.')
do
(r == CTX_MAX - 1) ? (r = 0) : ++r;
while (!g_ctx[r].c_cfg.ctxactive);
else
do
(r == 0) ? (r = CTX_MAX - 1) : --r;
while (!g_ctx[r].c_cfg.ctxactive); // fallthrough
fd = '1' + r; // fallthrough
case '1': // fallthrough
case '2': // fallthrough
case '3': // fallthrough
case '4':
r = fd - '1'; /* Save the next context id */
if (cfg.curctx == r) {
if (sel != SEL_CYCLE)
continue;
(r == CTX_MAX - 1) ? (r = 0) : ++r;
snprintf(newpath, PATH_MAX,
"Create context %d? [Enter]", r + 1);
fd = get_input(newpath);
if (fd != '\r')
continue;
}
#ifdef DIR_LIMITED_COPY
g_crc = 0;
#endif
/* Save current context */
xstrlcpy(g_ctx[cfg.curctx].c_name, dents[cur].name, NAME_MAX + 1);
g_ctx[cfg.curctx].c_cfg = cfg;
if (g_ctx[r].c_cfg.ctxactive) /* Switch to saved context */
cfg = g_ctx[r].c_cfg;
else { /* Setup a new context from current context */
g_ctx[r].c_cfg.ctxactive = 1;
xstrlcpy(g_ctx[r].c_path, path, PATH_MAX);
xstrlcpy(g_ctx[r].c_init, path, PATH_MAX);
g_ctx[r].c_last[0] = '\0';
xstrlcpy(g_ctx[r].c_name, dents[cur].name, NAME_MAX + 1);
g_ctx[r].c_cfg = cfg;
g_ctx[r].c_cfg.runscript = 0;
}
/* Reset the pointers */
path = g_ctx[r].c_path;
ipath = g_ctx[r].c_init;
lastdir = g_ctx[r].c_last;
lastname = g_ctx[r].c_name;
cfg.curctx = r;
setdirwatch();
goto begin;
}
if (get_bm_loc(fd, newpath) == NULL) {
printmsg(messages[STR_INVBM_KEY]);
goto nochange;
}
if (!xdiraccess(newpath))
goto nochange;
if (strcmp(path, newpath) == 0)
break;
lastname[0] = '\0';
/* Save last working directory */
xstrlcpy(lastdir, path, PATH_MAX);
/* Save the newly opted dir in path */
xstrlcpy(path, newpath, PATH_MAX);
DPRINTF_S(path);
setdirwatch();
goto begin;
case SEL_PIN:
xstrlcpy(mark, path, PATH_MAX);
printmsg(mark);
goto nochange;
case SEL_FLTR:
/* Unwatch dir if we are still in a filtered view */
#ifdef LINUX_INOTIFY
if (inotify_wd >= 0) {
inotify_rm_watch(inotify_fd, inotify_wd);
inotify_wd = -1;
}
#elif defined(BSD_KQUEUE)
if (event_fd >= 0) {
close(event_fd);
event_fd = -1;
}
#endif
presel = filterentries(path);
/* Save current */
if (ndents)
copycurname();
goto nochange;
case SEL_MFLTR: // fallthrough
case SEL_TOGGLEDOT: // fallthrough
case SEL_DETAIL: // fallthrough
case SEL_FSIZE: // fallthrough
case SEL_ASIZE: // fallthrough
case SEL_BSIZE: // fallthrough
case SEL_MTIME:
switch (sel) {
case SEL_MFLTR:
cfg.filtermode ^= 1;
if (cfg.filtermode) {
presel = FILTER;
goto nochange;
}
/* Start watching the directory */
dir_changed = TRUE;
break;
case SEL_TOGGLEDOT:
cfg.showhidden ^= 1;
break;
case SEL_DETAIL:
cfg.showdetail ^= 1;
cfg.showdetail ? (printptr = &printent_long) : (printptr = &printent);
break;
case SEL_FSIZE:
cfg.sizeorder ^= 1;
cfg.mtimeorder = 0;
cfg.apparentsz = 0;
cfg.blkorder = 0;
cfg.copymode = 0;
break;
case SEL_ASIZE:
cfg.apparentsz ^= 1;
if (cfg.apparentsz) {
nftw_fn = &sum_sizes;
cfg.blkorder = 1;
BLK_SHIFT = 0;
} else
cfg.blkorder = 0;
break;
case SEL_BSIZE:
if (sel == SEL_BSIZE) {
if (!cfg.apparentsz)
cfg.blkorder ^= 1;
nftw_fn = &sum_bsizes;
cfg.apparentsz = 0;
BLK_SHIFT = ffs(S_BLKSIZE) - 1;
}
if (cfg.blkorder) {
cfg.showdetail = 1;
printptr = &printent_long;
}
cfg.mtimeorder = 0;
cfg.sizeorder = 0;
cfg.copymode = 0;
break;
default: /* SEL_MTIME */
cfg.mtimeorder ^= 1;
cfg.sizeorder = 0;
cfg.apparentsz = 0;
cfg.blkorder = 0;
cfg.copymode = 0;
break;
}
/* Save current */
if (ndents)
copycurname();
goto begin;
case SEL_STATS:
if (!ndents)
break;
mkpath(path, dents[cur].name, newpath);
if (lstat(newpath, &sb) == -1 || !show_stats(newpath, dents[cur].name, &sb)) {
printwarn();
goto nochange;
}
break;
case SEL_MEDIA: // fallthrough
case SEL_FMEDIA: // fallthrough
case SEL_ARCHIVELS: // fallthrough
case SEL_EXTRACT: // fallthrough
case SEL_RENAMEALL: // fallthrough
case SEL_RUNEDIT: // fallthrough
case SEL_RUNPAGE:
if (!ndents)
break; // fallthrough
case SEL_REDRAW: // fallthrough
case SEL_HELP: // fallthrough
case SEL_NOTE: // fallthrough
case SEL_LOCK:
{
if (ndents)
mkpath(path, dents[cur].name, newpath);
switch (sel) {
case SEL_MEDIA:
r = show_mediainfo(newpath, NULL);
break;
case SEL_FMEDIA:
r = show_mediainfo(newpath, "-f");
break;
case SEL_ARCHIVELS:
r = handle_archive(newpath, "-l", path);
break;
case SEL_EXTRACT:
r = handle_archive(newpath, "-x", path);
break;
case SEL_REDRAW:
if (ndents)
copycurname();
goto begin;
case SEL_RENAMEALL:
r = getutil(utils[VIDIR]);
if (r)
spawn(utils[VIDIR], ".", NULL, path, F_NORMAL);
break;
case SEL_HELP:
r = show_help(path);
break;
case SEL_RUNEDIT:
if (!quote_run_sh_cmd(editor, dents[cur].name, path))
goto nochange;
r = TRUE;
break;
case SEL_RUNPAGE:
r = TRUE;
spawn(pager, pager_arg, dents[cur].name, path, F_NORMAL);
break;
case SEL_NOTE:
{
static char *notepath;
notepath = notepath ? notepath : getenv(env_cfg[NNN_NOTE]);
if (!notepath) {
printmsg("set NNN_NOTE");
goto nochange;
}
if (!quote_run_sh_cmd(editor, notepath, NULL))
goto nochange;
r = TRUE;
break;
}
default: /* SEL_LOCK */
r = TRUE;
spawn(utils[LOCKER], NULL, NULL, NULL, F_NORMAL | F_SIGINT);
break;
}
if (!r) {
printmsg("utility missing");
goto nochange;
}
/* In case of successful operation, reload contents */
/* Continue in navigate-as-you-type mode, if enabled */
if (cfg.filtermode)
presel = FILTER;
/* Save current */
if (ndents)
copycurname();
/* Repopulate as directory content may have changed */
goto begin;
}
case SEL_COPY:
if (!ndents)
goto nochange;
if (cfg.copymode) {
/*
* Clear the tmp copy path file on first copy.
*
* This ensures that when the first file path is
* copied into memory (but not written to tmp file
* yet to save on writes), the tmp file is cleared.
* The user may be in the middle of selection mode op
* and issue a cp, mv of multi-rm assuming the files
* in the copy list would be affected. However, these
* ops read the source file paths from the tmp file.
*/
if (!ncp)
writecp(NULL, 0);
r = mkpath(path, dents[cur].name, newpath);
if (!appendfpath(newpath, r))
goto nochange;
++ncp;
} else {
r = mkpath(path, dents[cur].name, newpath);
/* Keep the copy buf in sync */
copybufpos = 0;
appendfpath(newpath, r);
writecp(newpath, r - 1); /* Truncate NULL from end */
if (copier)
spawn(copier, NULL, NULL, NULL, F_NOTRACE);
}
printmsg(newpath);
goto nochange;
case SEL_COPYMUL:
cfg.copymode ^= 1;
if (cfg.copymode) {
g_crc = crc8fast((uchar *)dents, ndents * sizeof(struct entry));
copystartid = cur;
copybufpos = 0;
ncp = 0;
printmsg("selection on");
DPRINTF_S("selection on");
goto nochange;
}
if (!ncp) { /* Handle range selection */
#ifndef DIR_LIMITED_COPY
if (g_crc != crc8fast((uchar *)dents,
ndents * sizeof(struct entry))) {
cfg.copymode = 0;
printmsg("dir/content changed");
goto nochange;
}
#endif
if (cur < copystartid) {
copyendid = copystartid;
copystartid = cur;
} else
copyendid = cur;
} // fallthrough
case SEL_COPYALL:
if (sel == SEL_COPYALL) {
if (!ndents) {
printmsg("0 entries");
goto nochange;
}
cfg.copymode = 0;
copybufpos = 0;
ncp = 0; /* Override single/multi path selection */
copystartid = 0;
copyendid = ndents - 1;
}
if ((!ncp && copystartid < copyendid) || sel == SEL_COPYALL) {
for (r = copystartid; r <= copyendid; ++r)
if (!appendfpath(newpath, mkpath(path,
dents[r].name, newpath)))
goto nochange;
mvprintw(LINES - 1, 0, "%d files selected\n",
copyendid - copystartid + 1);
}
if (copybufpos) { /* File path(s) written to the buffer */
writecp(pcopybuf, copybufpos - 1); /* Truncate NULL from end */
if (copier)
spawn(copier, NULL, NULL, NULL, F_NOTRACE);
if (ncp) /* Some files cherry picked */
mvprintw(LINES - 1, 0, "%d files selected\n", ncp);
} else
printmsg("selection off");
goto nochange;
case SEL_COPYLIST:
copybufpos ? showcplist() : printmsg("none selected");
goto nochange;
case SEL_CP:
case SEL_MV:
case SEL_RMMUL:
{
if (!cpsafe())
goto nochange;
if (sel == SEL_CP) {
snprintf(g_buf, CMD_LEN_MAX,
#ifdef __linux__
"xargs -0 -a %s -%c src %s src .",
g_cppath, REPLACE_STR, cp);
#else
"cat %s | xargs -0 -o -%c src cp -iRp src .",
g_cppath, REPLACE_STR);
#endif
} else if (sel == SEL_MV) {
snprintf(g_buf, CMD_LEN_MAX,
#ifdef __linux__
"xargs -0 -a %s -%c src %s src .",
g_cppath, REPLACE_STR, mv);
#else
"cat %s | xargs -0 -o -%c src mv -i src .",
g_cppath, REPLACE_STR);
#endif
} else { /* SEL_RMMUL */
snprintf(g_buf, CMD_LEN_MAX,
#ifdef __linux__
"xargs -0 -a %s rm -%cr",
#else
"cat %s | xargs -0 -o rm -%cr",
#endif
g_cppath, confirm_force());
}
spawn("sh", "-c", g_buf, path, F_NORMAL | F_SIGINT);
if (ndents)
copycurname();
if (cfg.filtermode)
presel = FILTER;
goto begin;
}
case SEL_RM:
{
if (!ndents)
break;
char rm_opts[] = "-ir";
rm_opts[1] = confirm_force();
mkpath(path, dents[cur].name, newpath);
spawn("rm", rm_opts, newpath, NULL, F_NORMAL | F_SIGINT);
/* Don't optimize cur if filtering is on */
if (!cfg.filtermode && cur && access(newpath, F_OK) == -1)
--cur;
copycurname();
if (cfg.filtermode)
presel = FILTER;
goto begin;
}
case SEL_OPENWITH: // fallthrough
case SEL_RENAME:
if (!ndents)
break; // fallthrough
case SEL_ARCHIVE: // fallthrough
case SEL_NEW:
{
switch (sel) {
case SEL_ARCHIVE:
r = get_input("archive selection (else current)? [y/Y]");
if (r == 'y' || r == 'Y') {
if (!cpsafe())
goto nochange;
tmp = NULL;
} else if (!ndents) {
printmsg("no files");
goto nochange;
} else
tmp = dents[cur].name;
tmp = xreadline(tmp, "archive name: ");
break;
case SEL_OPENWITH:
tmp = xreadline(NULL, "open with: ");
break;
case SEL_NEW:
tmp = xreadline(NULL, "name/link suffix [@ for none]: ");
break;
default: /* SEL_RENAME */
tmp = xreadline(dents[cur].name, "");
break;
}
if (tmp == NULL || tmp[0] == '\0')
break;
/* Allow only relative, same dir paths */
if (tmp[0] == '/' || xstrcmp(xbasename(tmp), tmp) != 0) {
printmsg(messages[STR_INPUT_ID]);
goto nochange;
}
/* Confirm if app is CLI or GUI */
if (sel == SEL_OPENWITH) {
r = get_input("cli mode? [y/Y]");
(r == 'y' || r == 'Y') ? (r = F_NORMAL) : (r = F_NOWAIT | F_NOTRACE);
}
switch (sel) {
case SEL_ARCHIVE:
/* newpath is used as temporary buffer */
if (!getutil(utils[APACK])) {
printmsg("utility missing");
goto nochange;
}
if (r == 's') {
snprintf(g_buf, CMD_LEN_MAX,
#ifdef __linux__
"xargs -0 -a %s %s %s",
#else
"cat %s | xargs -0 -o %s %s",
#endif
g_cppath, utils[APACK], tmp);
spawn("sh", "-c", g_buf, path, F_NORMAL | F_SIGINT);
} else
spawn(utils[APACK], tmp, dents[cur].name, path, F_NORMAL);
break;
case SEL_OPENWITH:
dir = NULL;
getprogarg(tmp, &dir); /* dir used as tmp var */
mkpath(path, dents[cur].name, newpath);
spawn(tmp, dir, newpath, path, r);
break;
case SEL_RENAME:
/* Skip renaming to same name */
if (strcmp(tmp, dents[cur].name) == 0)
goto nochange;
break;
default:
break;
}
/* Complete OPEN, LAUNCH, ARCHIVE operations */
if (sel != SEL_NEW && sel != SEL_RENAME) {
/* Continue in navigate-as-you-type mode, if enabled */
if (cfg.filtermode)
presel = FILTER;
/* Save current */
copycurname();
/* Repopulate as directory content may have changed */
goto begin;
}
/* Open the descriptor to currently open directory */
fd = open(path, O_RDONLY | O_DIRECTORY);
if (fd == -1) {
printwarn();
goto nochange;
}
/* Check if another file with same name exists */
if (faccessat(fd, tmp, F_OK, AT_SYMLINK_NOFOLLOW) != -1) {
if (sel == SEL_RENAME) {
/* Overwrite file with same name? */
r = get_input("overwrite? [y/Y]");
if (r != 'y' && r != 'Y') {
close(fd);
break;
}
} else {
/* Do nothing in case of NEW */
close(fd);
printmsg("entry exists");
goto nochange;
}
}
if (sel == SEL_RENAME) {
/* Rename the file */
if (renameat(fd, dents[cur].name, fd, tmp) != 0) {
close(fd);
printwarn();
goto nochange;
}
} else {
/* Check if it's a dir or file */
r = get_input("create 'f'(ile) / 'd'(ir) / 's'(ym) / 'h'(ard)?");
if (r == 'f') {
r = openat(fd, tmp, O_CREAT, 0666);
close(r);
} else if (r == 'd') {
r = mkdirat(fd, tmp, 0777);
} else if (r == 's' || r == 'h') {
if (tmp[0] == '@' && tmp[1] == '\0')
tmp[0] = '\0';
r = xlink(tmp, path, newpath, r);
close(fd);
if (r <= 0) {
printmsg("none created");
goto nochange;
}
if (cfg.filtermode)
presel = FILTER;
if (ndents)
copycurname();
goto begin;
} else {
close(fd);
break;
}
/* Check if file creation failed */
if (r == -1) {
close(fd);
printwarn();
goto nochange;
}
}
close(fd);
xstrlcpy(lastname, tmp, NAME_MAX + 1);
goto begin;
}
case SEL_EXEC: // fallthrough
case SEL_SHELL: // fallthrough
case SEL_SCRIPT: // fallthrough
case SEL_RUNCMD:
switch (sel) {
case SEL_EXEC:
if (!ndents)
goto nochange;
/* Check if this is a directory */
if (!S_ISREG(dents[cur].mode)) {
printmsg("not regular file");
goto nochange;
}
/* Check if file is executable */
if (!(dents[cur].mode & 0100)) {
printmsg("permission denied");
goto nochange;
}
mkpath(path, dents[cur].name, newpath);
DPRINTF_S(newpath);
spawn(newpath, NULL, NULL, path, F_NORMAL | F_SIGINT);
break;
case SEL_SHELL:
spawn(shell, shell_arg, NULL, path, F_NORMAL | F_MARKER);
break;
case SEL_SCRIPT:
scriptpath = scriptpath ? scriptpath : getenv(env_cfg[NNN_SCRIPT]);
if (!scriptpath) {
printmsg("set NNN_SCRIPT");
goto nochange;
}
if (stat(scriptpath, &sb) == -1) {
printwarn();
goto nochange;
}
/* Regular script file */
if (S_ISREG(sb.st_mode)) {
tmp = ndents ? dents[cur].name : NULL;
spawn(shell, scriptpath, tmp, path, F_NORMAL | F_SIGINT);
break;
}
/* Must be a directory or a regular file */
if (!S_ISDIR(sb.st_mode))
break;
/* Script directory */
cfg.runscript ^= 1;
if (!cfg.runscript && rundir[0]) {
/*
* If toggled, and still in the script dir,
* switch to original directory
*/
if (strcmp(path, scriptpath) == 0) {
xstrlcpy(path, rundir, PATH_MAX);
xstrlcpy(lastname, runfile, NAME_MAX);
rundir[0] = runfile[0] = '\0';
setdirwatch();
goto begin;
}
break;
}
/* Check if directory is accessible */
if (!xdiraccess(scriptpath))
goto nochange;
xstrlcpy(rundir, path, PATH_MAX);
xstrlcpy(path, scriptpath, PATH_MAX);
if (ndents)
xstrlcpy(runfile, dents[cur].name, NAME_MAX);
cfg.runctx = cfg.curctx;
lastname[0] = '\0';
setdirwatch();
goto begin;
default: /* SEL_RUNCMD */
#ifndef NORL
if (cfg.picker) {
/* readline prompt breaks the interface, use stock */
#endif
tmp = xreadline(NULL, "> ");
if (tmp[0])
spawn(shell, "-c", tmp, path, F_NORMAL | F_SIGINT);
#ifndef NORL
} else {
exitcurses();
/* Switch to current path for readline(3) */
if (chdir(path) == -1) {
printwarn();
goto nochange;
}
tmp = readline("nnn> ");
if (chdir(ipath) == -1) {
printwarn();
goto nochange;
}
refresh();
if (tmp && tmp[0]) {
spawn(shell, "-c", tmp, path, F_NORMAL | F_SIGINT);
/* readline finishing touches */
add_history(tmp);
free(tmp);
}
}
#endif
}
/* Continue in navigate-as-you-type mode, if enabled */
if (cfg.filtermode)
presel = FILTER;
/* Save current */
if (ndents)
copycurname();
/* Repopulate as directory content may have changed */
goto begin;
case SEL_QUITCD: // fallthrough
case SEL_QUIT:
for (r = 0; r < CTX_MAX; ++r)
if (r != cfg.curctx && g_ctx[r].c_cfg.ctxactive) {
r = get_input("Quit all contexts? [Enter]");
break;
}
if (!(r == CTX_MAX || r == '\r'))
break;
if (sel == SEL_QUITCD) {
/* In vim picker mode, clear selection and exit */
if (cfg.picker) {
/* Picker mode: reset buffer or clear file */
if (copybufpos)
cfg.pickraw ? copybufpos = 0 : writecp(NULL, 0);
dentfree(dents);
return;
}
tmp = getenv(env_cfg[NNN_TMPFILE]);
if (!tmp) {
printmsg("set NNN_TMPFILE");
goto nochange;
}
FILE *fp = fopen(tmp, "w");
if (fp) {
fprintf(fp, "cd \"%s\"", path);
fclose(fp);
}
} // fallthrough
case SEL_QUITCTX:
if (sel == SEL_QUITCTX) {
uint iter = 1;
r = cfg.curctx;
while (iter < CTX_MAX) {
(r == CTX_MAX - 1) ? (r = 0) : ++r;
if (g_ctx[r].c_cfg.ctxactive) {
g_ctx[cfg.curctx].c_cfg.ctxactive = 0;
/* Switch to next active context */
path = g_ctx[r].c_path;
ipath = g_ctx[r].c_init;
lastdir = g_ctx[r].c_last;
lastname = g_ctx[r].c_name;
cfg = g_ctx[r].c_cfg;
cfg.curctx = r;
setdirwatch();
goto begin;
}
++iter;
}
}
dentfree(dents);
return;
} /* switch (sel) */
/* Locker */
if (idletimeout != 0 && idle == idletimeout) {
idle = 0;
spawn(utils[LOCKER], NULL, NULL, NULL, F_NORMAL | F_SIGINT);
}
}
}
static void usage(void)
{
fprintf(stdout,
"%s: nnn [-b key] [-C] [-e] [-i] [-l] [-n]\n"
" [-p file] [-s] [-S] [-v] [-h] [PATH]\n\n"
"The missing terminal file manager for X.\n\n"
"positional args:\n"
" PATH start dir [default: current dir]\n\n"
"optional args:\n"
" -b key open bookmark key\n"
" -C disable directory color\n"
" -e use exiftool for media info\n"
" -i nav-as-you-type mode\n"
" -l light mode\n"
" -n use version compare to sort\n"
" -p file selection file (stdout if '-')\n"
" -s string filters [default: regex]\n"
" -S du mode\n"
" -v show version\n"
" -h show help\n\n"
"v%s\n%s\n", __func__, VERSION, GENERAL_INFO);
}
int main(int argc, char *argv[])
{
char cwd[PATH_MAX] __attribute__ ((aligned));
char *ipath = NULL;
int opt;
while ((opt = getopt(argc, argv, "Slib:Cenp:svh")) != -1) {
switch (opt) {
case 'S':
cfg.blkorder = 1;
nftw_fn = sum_bsizes;
BLK_SHIFT = ffs(S_BLKSIZE) - 1;
break;
case 'l':
cfg.showdetail = 0;
printptr = &printent;
break;
case 'i':
cfg.filtermode = 1;
break;
case 'b':
ipath = optarg;
break;
case 'C':
cfg.showcolor = 0;
break;
case 'e':
cfg.metaviewer = EXIFTOOL;
break;
case 'n':
cmpfn = &xstrverscmp;
break;
case 'p':
cfg.picker = 1;
if (optarg[0] == '-' && optarg[1] == '\0')
cfg.pickraw = 1;
else {
/* copier used as tmp var */
copier = realpath(optarg, g_cppath);
if (!g_cppath[0]) {
fprintf(stderr, "%s\n", strerror(errno));
return 1;
}
}
break;
case 's':
cfg.filter_re = 0;
filterfn = &visible_str;
break;
case 'v':
fprintf(stdout, "%s\n", VERSION);
return 0;
case 'h':
usage();
return 0;
default:
usage();
return 1;
}
}
/* Confirm we are in a terminal */
if (!cfg.picker && !(isatty(0) && isatty(1))) {
fprintf(stderr, "stdin/stdout !tty\n");
return 1;
}
/* Get the context colors; copier used as tmp var */
if (cfg.showcolor) {
copier = xgetenv(env_cfg[NNN_CONTEXT_COLORS], "4444");
opt = 0;
while (opt < CTX_MAX) {
if (*copier) {
if (*copier < '0' || *copier > '7') {
fprintf(stderr, "invalid color code\n");
return 1;
}
g_ctx[opt].color = *copier - '0';
++copier;
} else
g_ctx[opt].color = 4;
++opt;
}
}
/* Parse bookmarks string */
if (!parsebmstr()) {
fprintf(stderr, "%s: malformed\n", env_cfg[NNN_BMS]);
return 1;
}
if (ipath) { /* Open a bookmark directly */
if (ipath[1] || get_bm_loc(*ipath, cwd) == NULL) {
fprintf(stderr, "%s\n", messages[STR_INVBM_KEY]);
return 1;
}
ipath = cwd;
} else if (argc == optind) {
/* Start in the current directory */
ipath = getcwd(cwd, PATH_MAX);
if (ipath == NULL)
ipath = "/";
} else {
ipath = realpath(argv[optind], cwd);
if (!ipath) {
fprintf(stderr, "%s: no such dir\n", argv[optind]);
return 1;
}
}
/* Increase current open file descriptor limit */
open_max = max_openfds();
if (getuid() == 0 || getenv(env_cfg[NNN_SHOW_HIDDEN]))
cfg.showhidden = 1;
/* Edit text in EDITOR, if opted */
if (getenv(env_cfg[NNN_USE_EDITOR]))
cfg.useeditor = 1;
/* Get VISUAL/EDITOR */
editor = xgetenv(envs[VISUAL], xgetenv(envs[EDITOR], "vi"));
DPRINTF_S(getenv(envs[VISUAL]));
DPRINTF_S(getenv(envs[EDITOR]));
DPRINTF_S(editor);
/* Get PAGER */
pager = xgetenv(envs[PAGER], "less");
getprogarg(pager, &pager_arg);
DPRINTF_S(pager);
DPRINTF_S(pager_arg);
/* Get SHELL */
shell = xgetenv(envs[SHELL], "sh");
getprogarg(shell, &shell_arg);
DPRINTF_S(shell);
DPRINTF_S(shell_arg);
DPRINTF_S(getenv("PWD"));
#ifdef LINUX_INOTIFY
/* Initialize inotify */
inotify_fd = inotify_init1(IN_NONBLOCK);
if (inotify_fd < 0) {
fprintf(stderr, "inotify init! %s\n", strerror(errno));
return 1;
}
#elif defined(BSD_KQUEUE)
kq = kqueue();
if (kq < 0) {
fprintf(stderr, "kqueue init! %s\n", strerror(errno));
return 1;
}
#endif
/* Get custom opener, if set */
opener = xgetenv(env_cfg[NNN_OPENER], utils[OPENER]);
/* Set nnn nesting level, idletimeout used as tmp var */
idletimeout = xatoi(getenv(env_cfg[NNNLVL]));
setenv(env_cfg[NNNLVL], xitoa(++idletimeout), 1);
/* Get locker wait time, if set */
idletimeout = xatoi(getenv(env_cfg[NNN_IDLE_TIMEOUT]));
DPRINTF_U(idletimeout);
/* Get the clipboard copier, if set */
copier = getenv(env_cfg[NNN_COPIER]);
home = getenv("HOME");
DPRINTF_S(home);
if (home)
g_tmpfplen = xstrlcpy(g_tmpfpath, home, HOME_LEN_MAX);
else if (getenv("TMPDIR"))
g_tmpfplen = xstrlcpy(g_tmpfpath, getenv("TMPDIR"), HOME_LEN_MAX);
else if (xdiraccess("/tmp"))
g_tmpfplen = xstrlcpy(g_tmpfpath, "/tmp", HOME_LEN_MAX);
if (!cfg.picker && g_tmpfplen) {
xstrlcpy(g_cppath, g_tmpfpath, HOME_LEN_MAX);
xstrlcpy(g_cppath + g_tmpfplen - 1, "/.nnncp", HOME_LEN_MAX - g_tmpfplen);
}
/* Disable auto-select if opted */
if (getenv(env_cfg[NNN_NO_AUTOSELECT]))
cfg.autoselect = 0;
/* Disable opening files on right arrow and `l` */
if (getenv(env_cfg[NNN_RESTRICT_NAV_OPEN]))
cfg.nonavopen = 1;
/* Restrict opening of 0-byte files */
if (getenv(env_cfg[NNN_RESTRICT_0B]))
cfg.restrict0b = 1;
#ifdef __linux__
if (!getenv(env_cfg[NNN_CP_MV_PROG])) {
cp[5] = cp[4];
cp[2] = cp[4] = ' ';
mv[5] = mv[4];
mv[2] = mv[4] = ' ';
}
#endif
/* Ignore/handle certain signals */
struct sigaction act;
memset(&act, 0, sizeof(act));
act.sa_sigaction = &sigint_handler;
act.sa_flags = SA_SIGINFO;
if (sigaction(SIGINT, &act, NULL) < 0) {
fprintf(stderr, "sigaction\n");
return 1;
}
signal(SIGQUIT, SIG_IGN);
/* Test initial path */
if (!xdiraccess(ipath)) {
fprintf(stderr, "%s: %s\n", ipath, strerror(errno));
return 1;
}
/* Set locale */
setlocale(LC_ALL, "");
#ifndef NORL
/* Bind TAB to cycling */
rl_variable_bind("completion-ignore-case", "on");
#ifdef __linux__
rl_bind_key('\t', rl_menu_complete);
#else
rl_bind_key('\t', rl_complete);
#endif
read_history(NULL);
#endif
#ifdef DBGMODE
enabledbg();
#endif
if (!initcurses())
return 1;
browse(ipath);
exitcurses();
#ifndef NORL
write_history(NULL);
#endif
if (cfg.pickraw) {
if (copybufpos) {
opt = selectiontofd(1);
if (opt != (int)(copybufpos))
fprintf(stderr, "%s\n", strerror(errno));
}
} else if (!cfg.picker && g_cppath[0])
unlink(g_cppath);
/* Free the copy buffer */
free(pcopybuf);
#ifdef LINUX_INOTIFY
/* Shutdown inotify */
if (inotify_wd >= 0)
inotify_rm_watch(inotify_fd, inotify_wd);
close(inotify_fd);
#elif defined(BSD_KQUEUE)
if (event_fd >= 0)
close(event_fd);
close(kq);
#endif
#ifdef DBGMODE
disabledbg();
#endif
return 0;
}