diff options
Diffstat (limited to 'lib/libprocstat/libprocstat.c')
| -rw-r--r-- | lib/libprocstat/libprocstat.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/lib/libprocstat/libprocstat.c b/lib/libprocstat/libprocstat.c index 1651cbc6820f..df77cabcd36b 100644 --- a/lib/libprocstat/libprocstat.c +++ b/lib/libprocstat/libprocstat.c @@ -1973,6 +1973,7 @@ procstat_getgroups_kvm(kvm_t *kd, struct kinfo_proc *kp, unsigned int *cntp) struct ucred ucred; gid_t *groups; size_t len; + unsigned int ngroups; assert(kd != NULL); assert(kp != NULL); @@ -1990,19 +1991,22 @@ procstat_getgroups_kvm(kvm_t *kd, struct kinfo_proc *kp, unsigned int *cntp) proc.p_ucred, kp->ki_pid); return (NULL); } - len = ucred.cr_ngroups * sizeof(gid_t); + ngroups = 1 + ucred.cr_ngroups; + len = ngroups * sizeof(gid_t); groups = malloc(len); if (groups == NULL) { warn("malloc(%zu)", len); return (NULL); } - if (!kvm_read_all(kd, (unsigned long)ucred.cr_groups, groups, len)) { + groups[0] = ucred.cr_gid; + if (!kvm_read_all(kd, (unsigned long)ucred.cr_groups, groups + 1, + len - sizeof(gid_t))) { warnx("can't read groups at %p for pid %d", ucred.cr_groups, kp->ki_pid); free(groups); return (NULL); } - *cntp = ucred.cr_ngroups; + *cntp = ngroups; return (groups); } |