Use XSI realpath(3)

main.c

@@ -131,27 +131,12 @@ void check_add_file(char *filename, bool given)
 		memset(&files[filecnt/2], 0, filecnt/2 * sizeof(*files));
 	}
 
-#if defined _BSD_SOURCE || defined _XOPEN_SOURCE && \
-    ((_XOPEN_SOURCE - 0) >= 500 || defined _XOPEN_SOURCE_EXTENDED)
-
 	if ((files[fileidx].path = realpath(filename, NULL)) == NULL) {
 		warn("could not get real path of file: %s\n", filename);
 		return;
 	}
-#else
-	if (*filename != '/') {
-		if ((files[fileidx].path = absolute_path(filename)) == NULL) {
-			warn("could not get absolute path of file: %s\n", filename);
-			return;
-		}
-	} else {
-		files[fileidx].path = NULL;
-	}
-#endif
 
 	files[fileidx].name = s_strdup(filename);
-	if (files[fileidx].path == NULL)
-		files[fileidx].path = files[fileidx].name;
 	if ((bn = strrchr(files[fileidx].name , '/')) != NULL && bn[1] != '\0')
 		files[fileidx].base = ++bn;
 	else

util.c

@@ -106,74 +106,6 @@ void size_readable(float *size, const char **unit)
 	*unit = units[MIN(i, ARRLEN(units) - 1)];
 }
 
-char* absolute_path(const char *filename)
-{
-	size_t len;
-	const char *basename;
-	char *dir, *dirname = NULL, *path = NULL, *s;
-	char *cwd = NULL, *twd = NULL;
-
-	if (*filename == '\0' || *filename == '/')
-		return NULL;
-
-	len = FNAME_LEN;
-	cwd = (char*) s_malloc(len);
-	while ((s = getcwd(cwd, len)) == NULL && errno == ERANGE) {
-		len *= 2;
-		cwd = (char*) s_realloc(cwd, len);
-	}
-	if (s == NULL)
-		goto error;
-
-	s = strrchr(filename, '/');
-	if (s != NULL) {
-		len = s - filename;
-		dirname = (char*) s_malloc(len + 1);
-		strncpy(dirname, filename, len);
-		dirname[len] = '\0';
-		basename = s + 1;
-
-		if (chdir(cwd) < 0)
-			/* we're not able to come back afterwards */
-			goto error;
-		if (chdir(dirname) < 0)
-			goto error;
-
-		len = FNAME_LEN;
-		twd = (char*) s_malloc(len);
-		while ((s = getcwd(twd, len)) == NULL && errno == ERANGE) {
-			len *= 2;
-			twd = (char*) s_realloc(twd, len);
-		}
-		if (chdir(cwd) < 0)
-			die("could not revert to prior working directory");
-		if (s == NULL)
-			goto error;
-		dir = twd;
-	} else {
-		/* only a single filename given */
-		basename = filename;
-		dir = cwd;
-	}
-
-	len = strlen(dir) + strlen(basename) + 2;
-	path = (char*) s_malloc(len);
-	snprintf(path, len, "%s/%s", dir, basename);
-
-	goto end;
-
-error:
-	free(path);
-	path = NULL;
-
-end:
-	free(dirname);
-	free(cwd);
-	free(twd);
-
-	return path;
-}
-
 int r_opendir(r_dir_t *rdir, const char *dirname)
 {
 	if (*dirname == '\0')

util.h

@@ -70,8 +70,6 @@ void die(const char*, ...);
 
 void size_readable(float*, const char**);
 
-char* absolute_path(const char*);
-
 int r_opendir(r_dir_t*, const char*);
 int r_closedir(r_dir_t*);
 char* r_readdir(r_dir_t*);