diff options
Diffstat (limited to 'usr/src/lib/nsswitch/nisplus/common/getpwnam.c')
| -rw-r--r-- | usr/src/lib/nsswitch/nisplus/common/getpwnam.c | 26 |
1 files changed, 21 insertions, 5 deletions
diff --git a/usr/src/lib/nsswitch/nisplus/common/getpwnam.c b/usr/src/lib/nsswitch/nisplus/common/getpwnam.c index 19807456e5..c0d3d1bd4f 100644 --- a/usr/src/lib/nsswitch/nisplus/common/getpwnam.c +++ b/usr/src/lib/nsswitch/nisplus/common/getpwnam.c @@ -19,7 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2006 Sun Microsystems, Inc. All rights reserved. + * Copyright 2008 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ @@ -27,8 +27,6 @@ * nisplus/getpwnam.c -- NIS+ backend for nsswitch "passwd" database */ -#pragma ident "%Z%%M% %I% %E% SMI" - #include <sys/types.h> #include <pwd.h> #include <stdlib.h> @@ -54,6 +52,9 @@ getbyuid(be, a) nss_XbyY_args_t *argp = (nss_XbyY_args_t *)a; char uidstr[12]; /* More than enough */ + if (argp->key.uid > MAXUID) + return (NSS_NOTFOUND); + (void) snprintf(uidstr, 12, "%ld", argp->key.uid); return (_nss_nisplus_lookup(be, argp, PW_TAG_UID, uidstr)); } @@ -73,6 +74,9 @@ nis_object2str(nobj, obj, be, argp) nss_XbyY_args_t *argp; { char *buffer, *name, *uid, *gid, *gecos; + ulong_t uidl, gidl; + char uid_nobody[NOBODY_STR_LEN]; + char gid_nobody[NOBODY_STR_LEN]; char *dir, *shell, *endnum; int buflen, namelen, uidlen, gidlen, gecoslen; int dirlen, shelllen; @@ -100,15 +104,27 @@ nis_object2str(nobj, obj, be, argp) /* uid: user id. Must be numeric */ __NISPLUS_GETCOL_OR_RETURN(ecol, PW_NDX_UID, uidlen, uid); - (void) strtol(uid, &endnum, 10); + uidl = strtoul(uid, &endnum, 10); if (*endnum != 0 || uid == endnum) return (NSS_STR_PARSE_PARSE); + if (uidl > MAXUID) { + (void) snprintf(uid_nobody, sizeof (uid_nobody), + "%u", UID_NOBODY); + uid = uid_nobody; + uidlen = strlen(uid); + } /* gid: primary group id. Must be numeric */ __NISPLUS_GETCOL_OR_RETURN(ecol, PW_NDX_GID, gidlen, gid); - (void) strtol(gid, &endnum, 10); + gidl = strtoul(gid, &endnum, 10); if (*endnum != 0 || gid == endnum) return (NSS_STR_PARSE_PARSE); + if (gidl > MAXUID) { + (void) snprintf(gid_nobody, sizeof (gid_nobody), + "%u", GID_NOBODY); + gid = gid_nobody; + gidlen = strlen(gid); + } /* gecos: user's real name */ __NISPLUS_GETCOL_OR_EMPTY(ecol, PW_NDX_GCOS, gecoslen, gecos); |