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tmpfiles: make recursive operation generic

This commit is contained in:
Zbigniew Jędrzejewski-Szmek 2015-01-18 01:33:39 -05:00
parent f8eeeaf9b7
commit 081043cf06
1 changed files with 19 additions and 33 deletions
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52
src/tmpfiles/tmpfiles.c
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@ -700,7 +700,9 @@ static int write_one_file(Item *i, const char *path) {
return 0;
}
static int item_set_perms_children(Item *i, const char *path) {
typedef int (*action_t)(Item *, const char *);
static int item_do_children(Item *i, const char *path, action_t action) {
_cleanup_closedir_ DIR *d;
int r = 0;
@ -735,12 +737,12 @@ static int item_set_perms_children(Item *i, const char *path) {
if (!p)
return -ENOMEM;
q = item_set_perms(i, p);
q = action(i, p);
if (q < 0 && q != -ENOENT && r == 0)
r = q;
if (IN_SET(de->d_type, DT_UNKNOWN, DT_DIR)) {
q = item_set_perms_children(i, p);
q = item_do_children(i, p, action);
if (q < 0 && r == 0)
r = q;
}
@ -749,42 +751,26 @@ static int item_set_perms_children(Item *i, const char *path) {
return r;
}
static int item_set_perms_recursive(Item *i, const char *path) {
int r, q;
assert(i);
assert(path);
r = item_set_perms(i, path);
if (r < 0)
return r;
q = item_set_perms_children(i, path);
if (q < 0 && r == 0)
r = q;
return r;
}
static int glob_item(Item *i, int (*action)(Item *, const char *)) {
static int glob_item(Item *i, action_t action, bool recursive) {
_cleanup_globfree_ glob_t g = {};
int r = 0, k;
char **fn;
errno = 0;
k = glob(i->path, GLOB_NOSORT|GLOB_BRACE, NULL, &g);
if (k != 0 && k != GLOB_NOMATCH) {
if (errno == 0)
errno = EIO;
log_error_errno(errno, "glob(%s) failed: %m", i->path);
return -errno;
}
if (k != 0 && k != GLOB_NOMATCH)
return log_error_errno(errno ?: EIO, "glob(%s) failed: %m", i->path);
STRV_FOREACH(fn, g.gl_pathv) {
k = action(i, *fn);
if (k < 0 && r == 0)
r = k;
if (recursive) {
k = item_do_children(i, *fn, action);
if (k < 0 && r == 0)
r = k;
}
}
return r;
@ -838,7 +824,7 @@ static int create_item(Item *i) {
break;
case WRITE_FILE:
r = glob_item(i, write_one_file);
r = glob_item(i, write_one_file, false);
if (r < 0)
return r;
@ -1016,14 +1002,14 @@ static int create_item(Item *i) {
case ADJUST_MODE:
case RELABEL_PATH:
r = glob_item(i, item_set_perms);
r = glob_item(i, item_set_perms, false);
if (r < 0)
return r;
break;
case RECURSIVE_RELABEL_PATH:
r = glob_item(i, item_set_perms_recursive);
r = glob_item(i, item_set_perms, true);
if (r < 0)
return r;
break;
@ -1120,7 +1106,7 @@ static int remove_item(Item *i) {
case REMOVE_PATH:
case TRUNCATE_DIRECTORY:
case RECURSIVE_REMOVE_PATH:
r = glob_item(i, remove_item_instance);
r = glob_item(i, remove_item_instance, false);
break;
}
@ -1187,7 +1173,7 @@ static int clean_item(Item *i) {
clean_item_instance(i, i->path);
break;
case IGNORE_DIRECTORY_PATH:
r = glob_item(i, clean_item_instance);
r = glob_item(i, clean_item_instance, false);
break;
default:
break;