diff options
Diffstat (limited to 'pasta.c')
| -rw-r--r-- | pasta.c | 11 |
1 files changed, 8 insertions, 3 deletions
@@ -102,7 +102,9 @@ static int pasta_wait_for_ns(void *arg) int flags = O_RDONLY | O_CLOEXEC; char ns[PATH_MAX]; - snprintf(ns, PATH_MAX, "/proc/%i/ns/net", pasta_child_pid); + if (snprintf_check(ns, PATH_MAX, "/proc/%i/ns/net", pasta_child_pid)) + die_perror("Can't build netns path"); + do { while ((c->pasta_netns_fd = open(ns, flags)) < 0) { if (errno != ENOENT) @@ -239,8 +241,11 @@ void pasta_start_ns(struct ctx *c, uid_t uid, gid_t gid, c->quiet = 1; /* Configure user and group mappings */ - snprintf(uidmap, BUFSIZ, "0 %u 1", uid); - snprintf(gidmap, BUFSIZ, "0 %u 1", gid); + if (snprintf_check(uidmap, BUFSIZ, "0 %u 1", uid)) + die_perror("Can't build uidmap"); + + if (snprintf_check(gidmap, BUFSIZ, "0 %u 1", gid)) + die_perror("Can't build gidmap"); if (write_file("/proc/self/uid_map", uidmap) || write_file("/proc/self/setgroups", "deny") || |