Create copy file in home dir, remove copy file on exit

README.md

@@ -391,7 +391,7 @@ Note that the filename is not escaped. So copying may still fail for filenames h
 
 #### copy file paths when X is missing
 
-A very common scenario on headless remote servers connected via SSH. As the clipboard is missing, `nnn` copies the path names to the tmp file `/tmp/nnncp$USER`.
+A very common scenario on headless remote servers connected via SSH. As the clipboard is missing, `nnn` copies the path names to the tmp file `$HOME/.nnncp`.
 
 `nnn` needs to know X is unavailable:
 
@@ -400,15 +400,15 @@ A very common scenario on headless remote servers connected via SSH. As the clip
 Use <kbd>^Y</kbd> and/or <kbd>^K</kbd> to copy file paths as usual. To use the copied paths from the cmdline, use command substitution:
 
     # bash/zsh
-    ls -ltr `cat /tmp/nnncpuser`
-    ls -ltr $(cat /tmp/nnncpuser)
+    ls -ltr `cat /home/user/.nnncp`
+    ls -ltr $(cat /home/user/.nnncp)
 
     # fish
-    ls -ltr (cat /tmp/nnncpuser)
+    ls -ltr (cat /home/user/.nnncp)
 
 An alias may be handy:
 
-    alias ncp='cat /tmp/nnncpuser'
+    alias ncp='cat /home/user/.nnncp'
 
 so you can -
 

nnn.1

@@ -257,7 +257,7 @@ screensaver.
     -------------------------------------
 .Ed
 .Pp
-\fBNNN_NO_X:\fR X display is unavailable. Copy file path(s) to \fI/tmp/nnncp$USER\fR.
+\fBNNN_NO_X:\fR X display is unavailable. Copy file path(s) to \fI$HOME/.nnncp\fR.
 .Bd -literal
     export NNN_NO_X=1
 .Ed

nnn.c

@@ -391,6 +391,8 @@ printerr(int linenum)
 {
 	exitcurses();
 	fprintf(stderr, "line %d: (%d) %s\n", linenum, errno, strerror(errno));
+	if (cfg.noxdisplay)
+		unlink(g_cppath);
 	exit(1);
 }
 
@@ -608,21 +610,11 @@ writecp(const char *buf, const size_t buflen)
 {
 	FILE *fp = fopen(g_cppath, "w");
 
-	if (!fp) {
-		struct passwd *pass = getpwuid(getuid());
-
-		xstrlcpy(g_cppath, "./nnncp", 11);
-		xstrlcpy(g_cppath + 10, pass->pw_name, 33);
-
-		fp = fopen(g_cppath, "w");
-		if (!fp)
-			printwarn();
-	}
-
 	if (fp) {
 		fwrite(buf, 1, buflen, fp);
 		fclose(fp);
-	}
+	} else
+		printwarn();
 }
 
 static bool
@@ -3431,11 +3423,8 @@ main(int argc, char *argv[])
 	/* Check if X11 is available */
 	if (getenv("NNN_NO_X")) {
 		cfg.noxdisplay = 1;
-
-		struct passwd *pass = getpwuid(getuid());
-
-		xstrlcpy(g_cppath, "/tmp/nnncp", 11);
-		xstrlcpy(g_cppath + 10, pass->pw_name, 33);
+		size_t len = xstrlcpy(g_cppath, getenv("HOME"), 48);
+		xstrlcpy(g_cppath + len - 1, "/.nnncp", 48 - len);
 	}
 
 	signal(SIGINT, SIG_IGN);
@@ -3457,6 +3446,9 @@ main(int argc, char *argv[])
 	browse(ipath, ifilter);
 	exitcurses();
 
+	if (cfg.noxdisplay)
+		unlink(g_cppath);
+
 #ifdef LINUX_INOTIFY
 	/* Shutdown inotify */
 	if (inotify_wd >= 0)