Introduction
Introduction Statistics Contact Development Disclaimer Help
recurse.c - sbase - suckless unix tools
git clone git://git.suckless.org/sbase
Log
Files
Refs
README
LICENSE
---
recurse.c (2454B)
---
1 /* See LICENSE file for copyright and license details. */
2 #include <dirent.h>
3 #include <errno.h>
4 #include <fcntl.h>
5 #include <limits.h>
6 #include <stdio.h>
7 #include <stdlib.h>
8 #include <string.h>
9 #include <sys/stat.h>
10 #include <sys/types.h>
11 #include <unistd.h>
12
13 #include "../fs.h"
14 #include "../util.h"
15
16 int recurse_status = 0;
17
18 void
19 recurse(int dirfd, const char *name, void *data, struct recursor *r)
20 {
21 struct dirent *d;
22 struct history *new, *h;
23 struct stat st, dst;
24 DIR *dp;
25 int flags = 0, fd;
26 size_t pathlen = r->pathlen;
27
28 if (dirfd == AT_FDCWD)
29 pathlen = estrlcpy(r->path, name, sizeof(r->path));
30
31 if (r->follow == 'P' || (r->follow == 'H' && r->depth))
32 flags |= AT_SYMLINK_NOFOLLOW;
33
34 if (fstatat(dirfd, name, &st, flags) < 0) {
35 if (!(r->flags & SILENT)) {
36 weprintf("stat %s:", r->path);
37 recurse_status = 1;
38 }
39 return;
40 }
41 if (!S_ISDIR(st.st_mode)) {
42 r->fn(dirfd, name, &st, data, r);
43 return;
44 }
45
46 new = emalloc(sizeof(struct history));
47 new->prev = r->hist;
48 r->hist = new;
49 new->dev = st.st_dev;
50 new->ino = st.st_ino;
51
52 for (h = new->prev; h; h = h->prev)
53 if (h->ino == st.st_ino && h->dev == st.st_dev)
54 return;
55
56 if (!r->depth && (r->flags & DIRFIRST))
57 r->fn(dirfd, name, &st, data, r);
58
59 if (!r->maxdepth || r->depth + 1 < r->maxdepth) {
60 fd = openat(dirfd, name, O_RDONLY | O_CLOEXEC | O_DIRECT…
61 if (fd < 0) {
62 weprintf("open %s:", r->path);
63 recurse_status = 1;
64 }
65 if (!(dp = fdopendir(fd))) {
66 if (!(r->flags & SILENT)) {
67 weprintf("fdopendir:");
68 recurse_status = 1;
69 }
70 return;
71 }
72 if (r->path[pathlen - 1] != '/')
73 r->path[pathlen++] = '/';
74 if (r->follow == 'H')
75 flags |= AT_SYMLINK_NOFOLLOW;
76 while ((d = readdir(dp))) {
77 if (!strcmp(d->d_name, ".") || !strcmp(d->d_name…
78 continue;
79 r->pathlen = pathlen + estrlcpy(r->path + pathle…
80 if (fstatat(fd, d->d_name, &dst, flags) < 0) {
81 if (!(r->flags & SILENT)) {
82 weprintf("stat %s:", r->path);
83 recurse_status = 1;
84 }
85 } else if ((r->flags & SAMEDEV) && dst.st_dev !=…
86 continue;
87 } else {
88 r->depth++;
89 r->fn(fd, d->d_name, &dst, data, r);
90 r->depth--;
91 }
92 }
93 r->path[pathlen - 1] = '\0';
94 r->pathlen = pathlen - 1;
95 closedir(dp);
96 }
97
98 if (!r->depth) {
99 if (!(r->flags & DIRFIRST))
100 r->fn(dirfd, name, &st, data, r);
101
102 while (r->hist) {
103 h = r->hist;
104 r->hist = r->hist->prev;
105 free(h);
106 }
107 }
108 }
You are viewing proxied material from suckless.org. The copyright of proxied material belongs to its original authors. Any comments or complaints in relation to proxied material should be directed to the original authors of the content concerned. Please see the disclaimer for more details.