diff options
Diffstat (limited to 'nis/nss_nisplus/nisplus-parser.c')
-rw-r--r-- | nis/nss_nisplus/nisplus-parser.c | 99 |
1 files changed, 52 insertions, 47 deletions
diff --git a/nis/nss_nisplus/nisplus-parser.c b/nis/nss_nisplus/nisplus-parser.c index 4cd0738aa2..6fd8f2ef33 100644 --- a/nis/nss_nisplus/nisplus-parser.c +++ b/nis/nss_nisplus/nisplus-parser.c @@ -33,16 +33,9 @@ int -_nss_nisplus_parse_pwent (nis_result *result, struct passwd *pw, - char *buffer, size_t buflen, int *errnop) +_nss_nisplus_parse_pwent_chk (nis_result *result, struct passwd *pw, + char *buffer, size_t buflen, int *errnop) { - char *first_unused = buffer; - size_t room_left = buflen; - size_t len; - - if (result == NULL) - return 0; - if ((result->status != NIS_SUCCESS && result->status != NIS_S_SUCCESS) || NIS_RES_NUMOBJ (result) != 1 || __type_of (NIS_RES_OBJECT (result)) != NIS_ENTRY_OBJ @@ -50,7 +43,19 @@ _nss_nisplus_parse_pwent (nis_result *result, struct passwd *pw, || NIS_RES_OBJECT (result)->EN_data.en_cols.en_cols_len < 7) return 0; - if (NISENTRYLEN (0, 0, result) >= room_left) + return _nss_nisplus_parse_pwent (result, 0, pw, buffer, buflen, errnop); +} + + +int +_nss_nisplus_parse_pwent (nis_result *result, size_t entry, struct passwd *pw, + char *buffer, size_t buflen, int *errnop) +{ + char *first_unused = buffer; + size_t room_left = buflen; + size_t len; + + if (NISENTRYLEN (entry, 0, result) >= room_left) { /* The line is too long for our buffer. */ no_more_room: @@ -58,81 +63,81 @@ _nss_nisplus_parse_pwent (nis_result *result, struct passwd *pw, return -1; } - strncpy (first_unused, NISENTRYVAL (0, 0, result), - NISENTRYLEN (0, 0, result)); - first_unused[NISENTRYLEN (0, 0, result)] = '\0'; + strncpy (first_unused, NISENTRYVAL (entry, 0, result), + NISENTRYLEN (entry, 0, result)); + first_unused[NISENTRYLEN (entry, 0, result)] = '\0'; len = strlen (first_unused); if (len == 0) /* No name ? Should never happen, database is corrupt */ return 0; pw->pw_name = first_unused; - room_left -= (len + 1); - first_unused += (len + 1); + room_left -= len + 1; + first_unused += len + 1; - if (NISENTRYLEN (0, 1, result) >= room_left) + if (NISENTRYLEN (entry, 1, result) >= room_left) goto no_more_room; - strncpy (first_unused, NISENTRYVAL (0, 1, result), - NISENTRYLEN (0, 1, result)); - first_unused[NISENTRYLEN (0, 1, result)] = '\0'; + strncpy (first_unused, NISENTRYVAL (entry, 1, result), + NISENTRYLEN (entry, 1, result)); + first_unused[NISENTRYLEN (entry, 1, result)] = '\0'; pw->pw_passwd = first_unused; len = strlen (first_unused); - room_left -= (len + 1); - first_unused += (len + 1); + room_left -= len + 1; + first_unused += len + 1; - if (NISENTRYLEN(0, 2, result) >= room_left) + if (NISENTRYLEN (entry, 2, result) >= room_left) goto no_more_room; - strncpy (first_unused, NISENTRYVAL (0, 2, result), - NISENTRYLEN (0, 2, result)); - first_unused[NISENTRYLEN (0, 2, result)] = '\0'; + strncpy (first_unused, NISENTRYVAL (entry, 2, result), + NISENTRYLEN (entry, 2, result)); + first_unused[NISENTRYLEN (entry, 2, result)] = '\0'; len = strlen (first_unused); if (len == 0) /* If we don't have a uid, it's an invalid shadow entry */ return 0; pw->pw_uid = strtoul (first_unused, NULL, 10); - if (NISENTRYLEN (0, 3, result) >= room_left) + if (NISENTRYLEN (entry, 3, result) >= room_left) goto no_more_room; - strncpy (first_unused, NISENTRYVAL (0, 3, result), - NISENTRYLEN (0, 3, result)); - first_unused[NISENTRYLEN (0, 3, result)] = '\0'; + strncpy (first_unused, NISENTRYVAL (entry, 3, result), + NISENTRYLEN (entry, 3, result)); + first_unused[NISENTRYLEN (entry, 3, result)] = '\0'; len = strlen (first_unused); if (len == 0) /* If we don't have a gid, it's an invalid shadow entry */ return 0; pw->pw_gid = strtoul (first_unused, NULL, 10); - if (NISENTRYLEN(0, 4, result) >= room_left) + if (NISENTRYLEN(entry, 4, result) >= room_left) goto no_more_room; - strncpy (first_unused, NISENTRYVAL (0, 4, result), - NISENTRYLEN (0, 4, result)); - first_unused[NISENTRYLEN (0, 4, result)] = '\0'; + strncpy (first_unused, NISENTRYVAL (entry, 4, result), + NISENTRYLEN (entry, 4, result)); + first_unused[NISENTRYLEN (entry, 4, result)] = '\0'; pw->pw_gecos = first_unused; len = strlen (first_unused); - room_left -= (len + 1); - first_unused += (len + 1); + room_left -= len + 1; + first_unused += len + 1; - if (NISENTRYLEN (0, 5, result) >= room_left) + if (NISENTRYLEN (entry, 5, result) >= room_left) goto no_more_room; - strncpy (first_unused, NISENTRYVAL (0, 5, result), - NISENTRYLEN (0, 5, result)); - first_unused[NISENTRYLEN (0, 5, result)] = '\0'; + strncpy (first_unused, NISENTRYVAL (entry, 5, result), + NISENTRYLEN (entry, 5, result)); + first_unused[NISENTRYLEN (entry, 5, result)] = '\0'; pw->pw_dir = first_unused; len = strlen (first_unused); - room_left -= (len + 1); - first_unused += (len + 1); + room_left -= len + 1; + first_unused += len + 1; - if (NISENTRYLEN (0, 6, result) >= room_left) + if (NISENTRYLEN (entry, 6, result) >= room_left) goto no_more_room; - strncpy (first_unused, NISENTRYVAL (0, 6, result), - NISENTRYLEN (0, 6, result)); - first_unused[NISENTRYLEN (0, 6, result)] = '\0'; + strncpy (first_unused, NISENTRYVAL (entry, 6, result), + NISENTRYLEN (entry, 6, result)); + first_unused[NISENTRYLEN (entry, 6, result)] = '\0'; pw->pw_shell = first_unused; len = strlen (first_unused); - room_left -= (len + 1); - first_unused += (len + 1); + room_left -= len + 1; + first_unused += len + 1; return 1; } |