diff options
| -rw-r--r-- | ChangeLog | 4 | ||||
| -rw-r--r-- | nis/nss_nisplus/nisplus-proto.c | 59 |
2 files changed, 30 insertions, 33 deletions
diff --git a/ChangeLog b/ChangeLog index 3bd61bc463..8ffe6fdd86 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,7 +1,9 @@ 2006-04-15 Ulrich Drepper <drepper@redhat.com> + * nis/nss_nisplus/nisplus-proto.c (_nss_nisplus_parse_protoent): + Significant cleanups. Correct adjustment for pointer array * nis/nss_nisplus/nisplus-network.c (_nss_nisplus_parse_netent): - Significant cleanups. Correct adjustment for pointer array. + Likewise. * nis/nss_nisplus/nisplus-hosts.c (_nss_nisplus_parse_hostent): Likewise. diff --git a/nis/nss_nisplus/nisplus-proto.c b/nis/nss_nisplus/nisplus-proto.c index a3370aa85e..02d8dbb658 100644 --- a/nis/nss_nisplus/nisplus-proto.c +++ b/nis/nss_nisplus/nisplus-proto.c @@ -35,20 +35,20 @@ static nis_result *result; static nis_name tablename_val; static u_long tablename_len; -#define NISENTRYVAL(idx,col,res) \ - ((res)->objects.objects_val[(idx)].EN_data.en_cols.en_cols_val[(col)].ec_value.ec_value_val) +#define NISENTRYVAL(idx, col, res) \ + (NIS_RES_OBJECT (res)[idx].EN_data.en_cols.en_cols_val[col].ec_value.ec_value_val) + +#define NISENTRYLEN(idx, col, res) \ + (NIS_RES_OBJECT (res)[idx].EN_data.en_cols.en_cols_val[col].ec_value.ec_value_len) -#define NISENTRYLEN(idx,col,res) \ - ((res)->objects.objects_val[(idx)].EN_data.en_cols.en_cols_val[(col)].ec_value.ec_value_len) static int -_nss_nisplus_parse_protoent (nis_result * result, struct protoent *proto, +_nss_nisplus_parse_protoent (nis_result *result, struct protoent *proto, char *buffer, size_t buflen, int *errnop) { char *first_unused = buffer; size_t room_left = buflen; unsigned int i; - char *p, *line; if (result == NULL) return 0; @@ -71,41 +71,41 @@ _nss_nisplus_parse_protoent (nis_result * result, struct protoent *proto, NISENTRYLEN (0, 0, result)); first_unused[NISENTRYLEN (0, 0, result)] = '\0'; proto->p_name = first_unused; - room_left -= (strlen (first_unused) +1); - first_unused += strlen (first_unused) +1; + size_t len = strlen (first_unused) + 1; + room_left -= len; + first_unused += len; - if (NISENTRYLEN (0, 2, result) + 1 > room_left) - goto no_more_room; proto->p_proto = atoi (NISENTRYVAL (0, 2, result)); - p = first_unused; - line = p; + char *line = first_unused; for (i = 0; i < result->objects.objects_len; ++i) { if (strcmp (NISENTRYVAL (i, 1, result), proto->p_name) != 0) { if (NISENTRYLEN (i, 1, result) + 2 > room_left) goto no_more_room; - *p++ = ' '; - p = __stpncpy (p, NISENTRYVAL (i, 1, result), - NISENTRYLEN (i, 1, result)); - *p = '\0'; - room_left -= (NISENTRYLEN (i, 1, result) + 1); + *first_unused++ = ' '; + first_unused = __stpncpy (first_unused, NISENTRYVAL (i, 1, result), + NISENTRYLEN (i, 1, result)); + room_left -= NISENTRYLEN (i, 1, result) + 1; } } - *p++ = '\0'; - first_unused = p; + *first_unused++ = '\0'; /* Adjust the pointer so it is aligned for storing pointers. */ - first_unused += __alignof__ (char *) - 1; - first_unused -= ((first_unused - (char *) 0) % __alignof__ (char *)); - proto->p_aliases = (char **) first_unused; - if (room_left < sizeof (char *)) + size_t adjust = ((__alignof__ (char *) + - (first_unused - (char *) 0) % __alignof__ (char *)) + % __alignof__ (char *)); + if (room_left < adjust + sizeof (char *)) goto no_more_room; + first_unused += adjust; + room_left -= adjust; + proto->p_aliases = (char **) first_unused; + + /* For the terminating NULL pointer. */ room_left -= sizeof (char *); - proto->p_aliases[0] = NULL; i = 0; while (*line != '\0') @@ -120,20 +120,15 @@ _nss_nisplus_parse_protoent (nis_result * result, struct protoent *proto, goto no_more_room; room_left -= sizeof (char *); - proto->p_aliases[i] = line; + proto->p_aliases[i++] = line; while (*line != '\0' && *line != ' ') ++line; if (*line == ' ') - { - *line = '\0'; - ++line; - ++i; - } - else - proto->p_aliases[i+1] = NULL; + *line++ = '\0'; } + proto->p_aliases[i] = NULL; return 1; } |