diff options
Diffstat (limited to 'usr/src/cmd/ssh/libssh/common/uidswap.c')
| -rw-r--r-- | usr/src/cmd/ssh/libssh/common/uidswap.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/usr/src/cmd/ssh/libssh/common/uidswap.c b/usr/src/cmd/ssh/libssh/common/uidswap.c index 32256b4718..942b22a749 100644 --- a/usr/src/cmd/ssh/libssh/common/uidswap.c +++ b/usr/src/cmd/ssh/libssh/common/uidswap.c @@ -46,7 +46,8 @@ static gid_t saved_egid = 0; /* Saved effective uid. */ static int privileged = 0; static int temporarily_use_uid_effective = 0; -static gid_t saved_egroups[NGROUPS_UMAX], user_groups[NGROUPS_UMAX]; +static int ngroups_max = -1; +static gid_t *saved_egroups, *user_groups; static int saved_egroupslen = -1, user_groupslen = -1; /* @@ -76,7 +77,16 @@ temporarily_use_uid(struct passwd *pw) privileged = 1; temporarily_use_uid_effective = 1; - saved_egroupslen = getgroups(NGROUPS_UMAX, saved_egroups); + + if (ngroups_max < 0) { + ngroups_max = sysconf(_SC_NGROUPS_MAX); + saved_egroups = malloc(ngroups_max * sizeof (gid_t)); + user_groups = malloc(ngroups_max * sizeof (gid_t)); + if (saved_egroups == NULL || user_groups == NULL) + fatal("malloc(gid array): %.100s", strerror(errno)); + } + + saved_egroupslen = getgroups(ngroups_max, saved_egroups); if (saved_egroupslen < 0) fatal("getgroups: %.100s", strerror(errno)); @@ -85,7 +95,7 @@ temporarily_use_uid(struct passwd *pw) if (initgroups(pw->pw_name, pw->pw_gid) < 0) fatal("initgroups: %s: %.100s", pw->pw_name, strerror(errno)); - user_groupslen = getgroups(NGROUPS_UMAX, user_groups); + user_groupslen = getgroups(ngroups_max, user_groups); if (user_groupslen < 0) fatal("getgroups: %.100s", strerror(errno)); } |