diff options
Diffstat (limited to 'conf.c')
| -rw-r--r-- | conf.c | 27 |
1 files changed, 9 insertions, 18 deletions
@@ -995,22 +995,18 @@ static int conf_runas(char *opt, unsigned int *uid, unsigned int *gid) * @runas: --runas option, may be NULL * @uid: User ID, set on success * @gid: Group ID, set on success - * - * Return: 0 on success, negative error code on failure */ -static int conf_ugid(char *runas, uid_t *uid, gid_t *gid) +static void conf_ugid(char *runas, uid_t *uid, gid_t *gid) { const char root_uid_map[] = " 0 0 4294967295"; char buf[BUFSIZ]; - int ret; int fd; /* If user has specified --runas, that takes precedence... */ if (runas) { - ret = conf_runas(runas, uid, gid); - if (ret) - err("Invalid --runas option: %s", runas); - return ret; + if (conf_runas(runas, uid, gid)) + die("Invalid --runas option: %s", runas); + return; } /* ...otherwise default to current user and group... */ @@ -1019,20 +1015,18 @@ static int conf_ugid(char *runas, uid_t *uid, gid_t *gid) /* ...as long as it's not root... */ if (*uid) - return 0; + return; /* ...or at least not root in the init namespace... */ if ((fd = open("/proc/self/uid_map", O_RDONLY | O_CLOEXEC)) < 0) { - ret = -errno; - err("Can't determine if we're in init namespace: %s", - strerror(-ret)); - return ret; + die("Can't determine if we're in init namespace: %s", + strerror(errno)); } if (read(fd, buf, BUFSIZ) != sizeof(root_uid_map) || strncmp(buf, root_uid_map, sizeof(root_uid_map) - 1)) { close(fd); - return 0; + return; } close(fd); @@ -1056,7 +1050,6 @@ static int conf_ugid(char *runas, uid_t *uid, gid_t *gid) *uid = *gid = 65534; #endif } - return 0; } /** @@ -1520,9 +1513,7 @@ void conf(struct ctx *c, int argc, char **argv) if (*c->sock_path && c->fd_tap >= 0) die("Options --socket and --fd are mutually exclusive"); - ret = conf_ugid(runas, &uid, &gid); - if (ret) - usage(argv[0]); + conf_ugid(runas, &uid, &gid); if (logfile) { logfile_init(c->mode == MODE_PASST ? "passt" : "pasta", |