diff options
Diffstat (limited to 'nis/nss_nisplus/nisplus-service.c')
| -rw-r--r-- | nis/nss_nisplus/nisplus-service.c | 78 |
1 files changed, 40 insertions, 38 deletions
diff --git a/nis/nss_nisplus/nisplus-service.c b/nis/nss_nisplus/nisplus-service.c index c47dc09..3dd9f4d 100644 --- a/nis/nss_nisplus/nisplus-service.c +++ b/nis/nss_nisplus/nisplus-service.c @@ -35,11 +35,12 @@ 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_servent (nis_result *result, struct servent *serv, @@ -52,10 +53,9 @@ _nss_nisplus_parse_servent (nis_result *result, struct servent *serv, return 0; if ((result->status != NIS_SUCCESS && result->status != NIS_S_SUCCESS) - || __type_of (result->objects.objects_val) != NIS_ENTRY_OBJ - || strcmp (result->objects.objects_val->EN_data.en_type, - "services_tbl") != 0 - || result->objects.objects_val->EN_data.en_cols.en_cols_len < 4) + || __type_of (NIS_RES_OBJECT (result)) != NIS_ENTRY_OBJ + || strcmp (NIS_RES_OBJECT (result)->EN_data.en_type, "services_tbl") != 0 + || NIS_RES_OBJECT (result)->EN_data.en_cols.en_cols_len < 4) return 0; if (NISENTRYLEN (0, 0, result) >= room_left) @@ -68,8 +68,9 @@ _nss_nisplus_parse_servent (nis_result *result, struct servent *serv, NISENTRYLEN (0, 0, result)); first_unused[NISENTRYLEN (0, 0, result)] = '\0'; serv->s_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) >= room_left) goto no_more_room; @@ -77,38 +78,43 @@ _nss_nisplus_parse_servent (nis_result *result, struct servent *serv, NISENTRYLEN (0, 2, result)); first_unused[NISENTRYLEN (0, 2, result)] = '\0'; serv->s_proto = first_unused; - room_left -= strlen (first_unused) + 1; - first_unused += strlen (first_unused) + 1; + len = strlen (first_unused) + 1; + room_left -= len; + first_unused += len; serv->s_port = htons (atoi (NISENTRYVAL (0, 3, result))); - char *p = first_unused; - char *line = p; - for (unsigned int i = 0; i < result->objects.objects_len; ++i) + /* XXX Rewrite at some point to allocate the array first and then + copy the strings. It wasteful to first concatenate the strings + to just split them again later. */ + char *line = first_unused; + for (unsigned int i = 0; i < NIS_RES_NUMOBJ (result); ++i) { if (strcmp (NISENTRYVAL (i, 1, result), serv->s_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 *)); - serv->s_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; + serv->s_aliases = (char **) first_unused; + + /* For the terminating NULL pointer. */ room_left -= (sizeof (char *)); - serv->s_aliases[0] = NULL; unsigned int i = 0; while (*line != '\0') @@ -124,24 +130,20 @@ _nss_nisplus_parse_servent (nis_result *result, struct servent *serv, goto no_more_room; room_left -= sizeof (char *); - serv->s_aliases[i] = line; + serv->s_aliases[i++] = line; while (*line != '\0' && *line != ' ') ++line; if (*line == ' ') - { - *line = '\0'; - ++line; - ++i; - } - else - serv->s_aliases[i+1] = NULL; + *line++ = '\0'; } + serv->s_aliases[i] = NULL; return 1; } + static enum nss_status _nss_create_tablename (int *errnop) { @@ -320,10 +322,10 @@ _nss_nisplus_getservbyname_r (const char *name, const char *protocol, database is correct, we should find it in the first case, too */ if ((result->status != NIS_SUCCESS && result->status != NIS_S_SUCCESS) - || __type_of (result->objects.objects_val) != NIS_ENTRY_OBJ - || strcmp (result->objects.objects_val->EN_data.en_type, + || __type_of (NIS_RES_OBJECT (result)) != NIS_ENTRY_OBJ + || strcmp (NIS_RES_OBJECT (result)->EN_data.en_type, "services_tbl") != 0 - || result->objects.objects_val->EN_data.en_cols.en_cols_len < 4) + || NIS_RES_OBJECT (result)->EN_data.en_cols.en_cols_len < 4) snprintf (buf, sizeof (buf), "[cname=%s,proto=%s],%s", name, protocol, tablename_val); else |