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install: use automatic cleanup in find_symlinks_fd()

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This commit is contained in:
Zbigniew Jędrzejewski-Szmek 2013-01-27 15:54:00 -05:00
parent e3ded78be7
commit ea55addcb7
1 changed files with 16 additions and 38 deletions
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54
src/shared/install.c
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@ -375,7 +375,7 @@ static int find_symlinks_fd(
bool *same_name_link) {
int r = 0;
DIR *d;
DIR _cleanup_closedir_ *d = NULL;
assert(name);
assert(fd >= 0);
@ -395,13 +395,11 @@ static int find_symlinks_fd(
union dirent_storage buf;
k = readdir_r(d, &buf.de, &de);
if (k != 0) {
r = -errno;
break;
}
if (k != 0)
return -errno;
if (!de)
break;
return r;
if (ignore_file(de->d_name))
continue;
@ -410,7 +408,7 @@ static int find_symlinks_fd(
if (de->d_type == DT_DIR) {
int nfd, q;
char *p;
char _cleanup_free_ *p = NULL;
nfd = openat(fd, de->d_name, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW);
if (nfd < 0) {
@ -425,39 +423,31 @@ static int find_symlinks_fd(
p = path_make_absolute(de->d_name, path);
if (!p) {
close_nointr_nofail(nfd);
r = -ENOMEM;
break;
return -ENOMEM;
}
/* This will close nfd, regardless whether it succeeds or not */
q = find_symlinks_fd(name, nfd, p, config_path, same_name_link);
free(p);
if (q > 0) {
r = 1;
break;
}
if (q > 0)
return 1;
if (r == 0)
r = q;
} else if (de->d_type == DT_LNK) {
char *p, *dest;
char _cleanup_free_ *p = NULL, *dest = NULL;
bool found_path, found_dest, b = false;
int q;
/* Acquire symlink name */
p = path_make_absolute(de->d_name, path);
if (!p) {
r = -ENOMEM;
break;
}
if (!p)
return -ENOMEM;
/* Acquire symlink destination */
q = readlink_and_canonicalize(p, &dest);
if (q < 0) {
free(p);
if (q == -ENOENT)
continue;
@ -480,37 +470,25 @@ static int find_symlinks_fd(
else
found_dest = streq(path_get_file_name(dest), name);
free(dest);
if (found_path && found_dest) {
char *t;
char _cleanup_free_ *t = NULL;
/* Filter out same name links in the main
* config path */
t = path_make_absolute(name, config_path);
if (!t) {
free(p);
r = -ENOMEM;
break;
}
if (!t)
return -ENOMEM;
b = path_equal(t, p);
free(t);
}
free(p);
if (b)
*same_name_link = true;
else if (found_path || found_dest) {
r = 1;
break;
}
else if (found_path || found_dest)
return 1;
}
}
closedir(d);
return r;
}