shaba/systemd-stable
1
1
Fork 0
mirror of https://github.com/systemd/systemd-stable.git synced 2024-10-31 16:21:11 +03:00
Code

handle numerical owner/group string in lookup_user/group()

Browse Source
This commit is contained in:
Kay Sievers 2008-10-22 23:59:53 +02:00
parent aaff3d023f
commit a391f49d7f
1 changed files with 33 additions and 26 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

59
udev/udev-util.c
View File

@ -126,48 +126,55 @@ int util_unlink_secure(struct udev *udev, const char *filename)
uid_t util_lookup_user(struct udev *udev, const char *user)
{
char *endptr;
int buflen = sysconf(_SC_GETPW_R_SIZE_MAX);
char buf[buflen];
struct passwd pwbuf;
struct passwd *pw;
uid_t uid = 0;
uid_t uid;
if (strcmp(user, "root") == 0)
return 0;
errno = 0;
getpwnam_r(user, &pwbuf, buf, buflen, &pw);
if (pw == NULL) {
uid = strtoul(user, &endptr, 10);
if (endptr[0] == '\0')
return uid;
errno = 0;
getpwnam_r(user, &pwbuf, buf, buflen, &pw);
if (pw != NULL)
return pw->pw_uid;
if (errno == 0 || errno == ENOENT || errno == ESRCH)
err(udev, "specified user '%s' unknown\n", user);
else
err(udev, "error resolving user '%s': %m\n", user);
} else
uid = pw->pw_uid;
return uid;
}
extern gid_t util_lookup_group(struct udev *udev, const char *group)
{
int buflen = sysconf(_SC_GETGR_R_SIZE_MAX);
char buf[buflen];
struct group grbuf;
struct group *gr;
gid_t gid = 0;
if (strcmp(group, "root") == 0)
return 0;
errno = 0;
getgrnam_r(group, &grbuf, buf, buflen, &gr);
if (gr == NULL) {
}
extern gid_t util_lookup_group(struct udev *udev, const char *group)
{
char *endptr;
int buflen = sysconf(_SC_GETGR_R_SIZE_MAX);
char buf[buflen];
struct group grbuf;
struct group *gr;
gid_t gid = 0;
if (strcmp(group, "root") == 0)
return 0;
gid = strtoul(group, &endptr, 10);
if (endptr[0] == '\0')
return gid;
errno = 0;
getgrnam_r(group, &grbuf, buf, buflen, &gr);
if (gr != NULL)
return gr->gr_gid;
if (errno == 0 || errno == ENOENT || errno == ESRCH)
err(udev, "specified group '%s' unknown\n", group);
else
err(udev, "error resolving group '%s': %m\n", group);
} else
gid = gr->gr_gid;
return gid;
}
return 0;
}
/* handle "[<SUBSYSTEM>/<KERNEL>]<attribute>" format */
int util_resolve_subsys_kernel(struct udev *udev, const char *string,