59 lines
1.4 KiB
C
59 lines
1.4 KiB
C
/* See LICENSE file for copyright and license details. */
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#include <dirent.h>
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#include <errno.h>
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#include <limits.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include "../util.h"
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int recurse_follow = 'P';
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int recurse_samedev = 0;
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void
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recurse(const char *path, void (*fn)(const char *, int, void *), int depth, void *data)
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{
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struct dirent *d;
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struct stat lst, st, dst;
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DIR *dp;
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size_t len;
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char *buf;
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if (lstat(path, &lst) < 0) {
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if (errno != ENOENT)
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weprintf("lstat %s:", path);
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return;
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}
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if (stat(path, &st) < 0) {
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if (errno != ENOENT)
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weprintf("stat %s:", path);
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return;
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}
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if (!S_ISDIR(lst.st_mode) && !(S_ISLNK(lst.st_mode) && S_ISDIR(st.st_mode) &&
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!(recurse_follow == 'P' || (recurse_follow == 'H' && depth > 0))))
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return;
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if (!(dp = opendir(path)))
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eprintf("opendir %s:", path);
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len = strlen(path);
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while ((d = readdir(dp))) {
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if (!strcmp(d->d_name, ".") || !strcmp(d->d_name, ".."))
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continue;
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buf = emalloc(len + (path[len - 1] != '/') + strlen(d->d_name) + 1);
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sprintf(buf, "%s%s%s", path, (path[len - 1] == '/') ? "" : "/", d->d_name);
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if (recurse_samedev && lstat(buf, &dst) < 0) {
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if (errno != ENOENT)
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weprintf("stat %s:", buf);
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} else if (!(recurse_samedev && dst.st_dev != lst.st_dev))
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fn(buf, depth + 1, data);
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free(buf);
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}
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closedir(dp);
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}
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