diff options
Diffstat (limited to 'usr.sbin/jail/jail.c')
| -rw-r--r-- | usr.sbin/jail/jail.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/usr.sbin/jail/jail.c b/usr.sbin/jail/jail.c index 1e5ff9b..ab188ee 100644 --- a/usr.sbin/jail/jail.c +++ b/usr.sbin/jail/jail.c @@ -52,7 +52,7 @@ main(int argc, char **argv) struct passwd *pwd; struct in_addr in; int ch, groups[NGROUPS], i, iflag, ngroups, uflag, Uflag; - char *username; + char path[PATH_MAX], *username; iflag = uflag = Uflag = 0; username = NULL; @@ -82,11 +82,13 @@ main(int argc, char **argv) usage(); if (uflag) GET_USER_INFO; - if (chdir(argv[0]) != 0) - err(1, "chdir: %s", argv[0]); + if (realpath(argv[0], path) == NULL) + err(1, "realpath: %s", argv[0]); + if (chdir(path) != 0) + err(1, "chdir: %s", path); memset(&j, 0, sizeof(j)); j.version = 0; - j.path = argv[0]; + j.path = path; j.hostname = argv[1]; if (inet_aton(argv[2], &in) == 0) errx(1, "Could not make sense of ip-number: %s", argv[2]); |
