Again, it can then be made to return void, simplifying the caller.
Signed-off-by: Laine Stump <laine(a)redhat.com>
---
conf.c | 27 +++++++++------------------
1 file changed, 9 insertions(+), 18 deletions(-)
diff --git a/conf.c b/conf.c
index c7ed64c..19020f9 100644
--- a/conf.c
+++ b/conf.c
@@ -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",
--
2.39.1