diff options
Diffstat (limited to 'udev_utils.c')
| -rw-r--r-- | udev_utils.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/udev_utils.c b/udev_utils.c index 003d7bded9..b198892c01 100644 --- a/udev_utils.c +++ b/udev_utils.c @@ -28,6 +28,9 @@ #include <ctype.h> #include <dirent.h> #include <syslog.h> +#include <pwd.h> +#include <grp.h> +#include <sys/types.h> #include <sys/utsname.h> #include "udev.h" @@ -161,3 +164,40 @@ int add_matching_files(struct list_head *name_list, const char *dirname, const c closedir(dir); return 0; } + +uid_t lookup_user(const char *user) +{ + struct passwd *pw; + uid_t uid = 0; + + errno = 0; + pw = getpwnam(user); + if (pw == NULL) { + if (errno == 0 || errno == ENOENT || errno == ESRCH) + err("specified user unknown '%s'", user); + else + err("error resolving user '%s': %s", user, strerror(errno)); + } else + uid = pw->pw_uid; + + return uid; +} + +extern gid_t lookup_group(const char *group) +{ + struct group *gr; + gid_t gid = 0; + + errno = 0; + gr = getgrnam(group); + if (gr == NULL) { + if (errno == 0 || errno == ENOENT || errno == ESRCH) + err("specified group unknown '%s'", group); + else + err("error resolving group '%s': %s", group, strerror(errno)); + } else + gid = gr->gr_gid; + + return gid; +} + |