diff options
| -rw-r--r-- | ChangeLog | 20 | ||||
| -rw-r--r-- | nis/nss_nisplus/nisplus-alias.c | 225 | ||||
| -rw-r--r-- | nis/nss_nisplus/nisplus-ethers.c | 128 | ||||
| -rw-r--r-- | nis/nss_nisplus/nisplus-hosts.c | 266 | ||||
| -rw-r--r-- | nis/nss_nisplus/nisplus-network.c | 215 | ||||
| -rw-r--r-- | nis/nss_nisplus/nisplus-proto.c | 245 | ||||
| -rw-r--r-- | nis/nss_nisplus/nisplus-rpc.c | 250 | ||||
| -rw-r--r-- | nis/nss_nisplus/nisplus-service.c | 259 |
8 files changed, 880 insertions, 728 deletions
@@ -1,3 +1,23 @@ +2005-12-03 Ulrich Drepper <drepper@redhat.com> + + * nis/nss_nisplus/nisplus-service.c: Fix locking to use + _nss_create_tablename. Avoid unnecessary copying, remove + unnecessary variables, general cleanup. + * nis/nss_nisplus/nisplus-rpc.c: Likewise. + * nis/nss_nisplus/nisplus-proto.c: Likewise.. + * nis/nss_nisplus/nisplus-network.c: Fix locking to use + _nss_create_tablename. Avoid unnecessary copying, general cleanup. + * nis/nss_nisplus/nisplus-hosts.c (_nss_nisplus_getipnodebyname_r): + Removed. + Fix locking to use _nss_create_tablename. Avoid unnecessary copying, + general cleanup. + * nis/nss_nisplus/nisplus-ethers.c (_nss_nisplus_getntohost_r): + Correctly construct request. + Fix locking to use _nss_create_tablename. Avoid unnecessary copying, + general cleanup. + * nis/nss_nisplus/nisplus-alias.c: Fix locking to use + _nss_create_tablename. Avoid unnecessary copying, general cleanup. + 2005-12-02 Ulrich Drepper <drepper@redhat.com> * nis/nss_nisplus/nisplus-pwd.c (_nss_pwd_create_tablename): diff --git a/nis/nss_nisplus/nisplus-alias.c b/nis/nss_nisplus/nisplus-alias.c index 152e5fc3fc..6aa93ab3bc 100644 --- a/nis/nss_nisplus/nisplus-alias.c +++ b/nis/nss_nisplus/nisplus-alias.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1997, 1998, 2001, 2002, 2003 Free Software Foundation, Inc. +/* Copyright (C) 1997,1998,2001,2002,2003,2005 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1997. @@ -17,6 +17,7 @@ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ +#include <atomic.h> #include <nss.h> #include <errno.h> #include <ctype.h> @@ -32,7 +33,7 @@ __libc_lock_define_initialized (static, lock) static nis_result *result; static u_long next_entry; static nis_name tablename_val; -static u_long tablename_len; +static size_t 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) @@ -45,19 +46,26 @@ _nss_create_tablename (int *errnop) { if (tablename_val == NULL) { - char buf [40 + strlen (nis_local_directory ())]; - char *p; + const char *local_dir = nis_local_directory (); + size_t local_dir_len = strlen (local_dir); + static const char prefix[] = "mail_aliases.org_dir."; - p = __stpcpy (buf, "mail_aliases.org_dir."); - p = __stpcpy (p, nis_local_directory ()); - tablename_val = __strdup (buf); + char *p = malloc (sizeof (prefix) + local_dir_len); if (tablename_val == NULL) { *errnop = errno; return NSS_STATUS_TRYAGAIN; } - tablename_len = strlen (tablename_val); + + memcpy (__stpcpy (p, prefix), local_dir, local_dir_len + 1); + + tablename_len = sizeof (prefix) - 1 + local_dir_len; + + atomic_write_barrier (); + + tablename_val = p; } + return NSS_STATUS_SUCCESS; } @@ -75,81 +83,73 @@ _nss_nisplus_parse_aliasent (nis_result *result, unsigned long entry, "mail_aliases") != 0 || result->objects.objects_val[entry].EN_data.en_cols.en_cols_len < 2) return 0; - else + + char *first_unused = buffer + NISENTRYLEN (0, 1, result) + 1; + size_t room_left = (buflen - (buflen % __alignof__ (char *)) + - NISENTRYLEN (0, 1, result) - 2); + + if (NISENTRYLEN (entry, 1, result) >= buflen) { - char *first_unused = buffer + NISENTRYLEN (0, 1, result) + 1; - size_t room_left = - buflen - (buflen % __alignof__ (char *)) - - NISENTRYLEN (0, 1, result) - 2; - char *line; - char *cp; - - if (NISENTRYLEN (entry, 1, result) >= buflen) - { - /* The line is too long for our buffer. */ - no_more_room: - *errnop = ERANGE; - return -1; - } - else - { - cp = __stpncpy (buffer, NISENTRYVAL (entry, 1, result), - NISENTRYLEN (entry, 1, result)); - *cp = '\0'; - } + /* The line is too long for our buffer. */ + no_more_room: + *errnop = ERANGE; + return -1; + } + + char *cp = __stpncpy (buffer, NISENTRYVAL (entry, 1, result), + NISENTRYLEN (entry, 1, result)); + *cp = '\0'; + + if (NISENTRYLEN(entry, 0, result) >= room_left) + goto no_more_room; + + alias->alias_local = 0; + alias->alias_members_len = 0; + *first_unused = '\0'; + ++first_unused; + cp = __stpncpy (first_unused, NISENTRYVAL (entry, 0, result), + NISENTRYLEN (entry, 0, result)); + *cp = '\0'; + alias->alias_name = first_unused; + + /* Terminate the line for any case. */ + cp = strpbrk (alias->alias_name, "#\n"); + if (cp != NULL) + *cp = '\0'; + + first_unused += strlen (alias->alias_name) +1; + /* Adjust the pointer so it is aligned for + storing pointers. */ + first_unused += __alignof__ (char *) - 1; + first_unused -= ((first_unused - (char *) 0) % __alignof__ (char *)); + alias->alias_members = (char **) first_unused; + + char *line = buffer; + while (*line != '\0') + { + /* Skip leading blanks. */ + while (isspace (*line)) + ++line; + + if (*line == '\0') + break; - if (NISENTRYLEN(entry, 0, result) >= room_left) + if (room_left < sizeof (char *)) goto no_more_room; + room_left -= sizeof (char *); + alias->alias_members[alias->alias_members_len] = line; + + while (*line != '\0' && *line != ',') + ++line; - alias->alias_local = 0; - alias->alias_members_len = 0; - *first_unused = '\0'; - ++first_unused; - cp = __stpncpy (first_unused, NISENTRYVAL (entry, 0, result), - NISENTRYLEN (entry, 0, result)); - *cp = '\0'; - alias->alias_name = first_unused; - - /* Terminate the line for any case. */ - cp = strpbrk (alias->alias_name, "#\n"); - if (cp != NULL) - *cp = '\0'; - - first_unused += strlen (alias->alias_name) +1; - /* Adjust the pointer so it is aligned for - storing pointers. */ - first_unused += __alignof__ (char *) - 1; - first_unused -= ((first_unused - (char *) 0) % __alignof__ (char *)); - alias->alias_members = (char **) first_unused; - - line = buffer; - - while (*line != '\0') + if (line != alias->alias_members[alias->alias_members_len]) { - /* Skip leading blanks. */ - while (isspace (*line)) - ++line; - - if (*line == '\0') - break; - - if (room_left < sizeof (char *)) - goto no_more_room; - room_left -= sizeof (char *); - alias->alias_members[alias->alias_members_len] = line; - - while (*line != '\0' && *line != ',') - ++line; - - if (line != alias->alias_members[alias->alias_members_len]) - { - *line++ = '\0'; - alias->alias_members_len++; - } + *line++ = '\0'; + alias->alias_members_len++; } - - return alias->alias_members_len == 0 ? 0 : 1; } + + return alias->alias_members_len == 0 ? 0 : 1; } static enum nss_status @@ -158,9 +158,11 @@ internal_setaliasent (void) enum nss_status status; int err; - if (result) - nis_freeresult (result); - result = NULL; + if (result != NULL) + { + nis_freeresult (result); + result = NULL; + } if (_nss_create_tablename (&err) != NSS_STATUS_SUCCESS) return NSS_STATUS_UNAVAIL; @@ -203,9 +205,11 @@ _nss_nisplus_endaliasent (void) { __libc_lock_lock (lock); - if (result) - nis_freeresult (result); - result = NULL; + if (result != NULL) + { + nis_freeresult (result); + result = NULL; + } next_entry = 0; __libc_lock_unlock (lock); @@ -240,7 +244,8 @@ internal_nisplus_getaliasent_r (struct aliasent *alias, return NSS_STATUS_TRYAGAIN; ++next_entry; - } while (!parse_res); + } + while (!parse_res); return NSS_STATUS_SUCCESS; } @@ -268,7 +273,12 @@ _nss_nisplus_getaliasbyname_r (const char *name, struct aliasent *alias, if (tablename_val == NULL) { + __libc_lock_lock (lock); + enum nss_status status = _nss_create_tablename (errnop); + + __libc_lock_unlock (lock); + if (status != NSS_STATUS_SUCCESS) return status; } @@ -278,35 +288,34 @@ _nss_nisplus_getaliasbyname_r (const char *name, struct aliasent *alias, *errnop = EINVAL; return NSS_STATUS_UNAVAIL; } - else - { - nis_result *result; - char buf[strlen (name) + 30 + tablename_len]; - int olderr = errno; - sprintf (buf, "[name=%s],%s", name, tablename_val); + char buf[strlen (name) + 9 + tablename_len]; + int olderr = errno; - result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); + snprintf (buf, sizeof (buf), "[name=%s],%s", name, tablename_val); - if (result == NULL) - { - *errnop = ENOMEM; - return NSS_STATUS_TRYAGAIN; - } - if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) - return niserr2nss (result->status); + nis_result *result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); - parse_res = _nss_nisplus_parse_aliasent (result, 0, alias, - buffer, buflen, errnop); - if (parse_res < 1) - { - __set_errno (olderr); + if (result == NULL) + { + *errnop = ENOMEM; + return NSS_STATUS_TRYAGAIN; + } - if (parse_res == -1) - return NSS_STATUS_TRYAGAIN; - else - return NSS_STATUS_NOTFOUND; - } - return NSS_STATUS_SUCCESS; + if (__builtin_expect (niserr2nss (result->status) != NSS_STATUS_SUCCESS, 0)) + return niserr2nss (result->status); + + parse_res = _nss_nisplus_parse_aliasent (result, 0, alias, + buffer, buflen, errnop); + if (__builtin_expect (parse_res < 1, 0)) + { + __set_errno (olderr); + + if (parse_res == -1) + return NSS_STATUS_TRYAGAIN; + else + return NSS_STATUS_NOTFOUND; } + + return NSS_STATUS_SUCCESS; } diff --git a/nis/nss_nisplus/nisplus-ethers.c b/nis/nss_nisplus/nisplus-ethers.c index 028309c841..528ae88a0c 100644 --- a/nis/nss_nisplus/nisplus-ethers.c +++ b/nis/nss_nisplus/nisplus-ethers.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1997,1998,2000,2001,2002,2003 Free Software Foundation, Inc. +/* Copyright (C) 1997,1998,2000-2003,2005 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Thorsten Kukuk <kukuk@suse.de>, 1997. @@ -17,15 +17,17 @@ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ -#include <nss.h> -#include <errno.h> +#include <atomic.h> #include <ctype.h> -#include <string.h> -#include <bits/libc-lock.h> +#include <errno.h> +#include <inttypes.h> #include <netdb.h> +#include <nss.h> +#include <string.h> #include <netinet/ether.h> -#include <rpcsvc/nis.h> #include <netinet/if_ether.h> +#include <rpcsvc/nis.h> +#include <bits/libc-lock.h> #include "nss-nisplus.h" @@ -70,7 +72,14 @@ _nss_nisplus_parse_etherent (nis_result *result, struct etherent *ether, room_left -= (NISENTRYLEN (0, 0, result) +1); ether->e_name = p; - ether->e_addr = *ether_aton (NISENTRYVAL (0, 1, result)); + struct ether_addr *ea = ether_aton (NISENTRYVAL (0, 1, result)); + if (ea == NULL) + { + *errnop = EINVAL; + return -2; + } + + ether->e_addr = *ea; return 1; } @@ -80,18 +89,24 @@ _nss_create_tablename (int *errnop) { if (tablename_val == NULL) { - char buf [40 + strlen (nis_local_directory ())]; - char *p; + const char *local_dir = nis_local_directory (); + size_t local_dir_len = strlen (local_dir); + static const char prefix[] = "ethers.org_dir."; - p = __stpcpy (buf, "ethers.org_dir."); - p = __stpcpy (p, nis_local_directory ()); - tablename_val = __strdup (buf); + char *p = malloc (sizeof (prefix) + local_dir_len); if (tablename_val == NULL) { *errnop = errno; return NSS_STATUS_TRYAGAIN; } - tablename_len = strlen (tablename_val); + + memcpy (__stpcpy (p, prefix), local_dir, local_dir_len + 1); + + tablename_len = sizeof (prefix) - 1 + local_dir_len; + + atomic_write_barrier (); + + tablename_val = p; } return NSS_STATUS_SUCCESS; } @@ -107,9 +122,11 @@ _nss_nisplus_setetherent (int stayopen) __libc_lock_lock (lock); - if (result) - nis_freeresult (result); - result = NULL; + if (result != NULL) + { + nis_freeresult (result); + result = NULL; + } if (_nss_create_tablename (&err) != NSS_STATUS_SUCCESS) status = NSS_STATUS_UNAVAIL; @@ -124,9 +141,11 @@ _nss_nisplus_endetherent (void) { __libc_lock_lock (lock); - if (result) - nis_freeresult (result); - result = NULL; + if (result != NULL) + { + nis_freeresult (result); + result = NULL; + } __libc_lock_unlock (lock); @@ -178,7 +197,6 @@ internal_nisplus_getetherent_r (struct etherent *ether, char *buffer, if (parse_res == -1) { nis_freeresult (result); - *errnop = ERANGE; result = saved_result; return NSS_STATUS_TRYAGAIN; } @@ -258,7 +276,6 @@ _nss_nisplus_gethostton_r (const char *name, struct etherent *eth, if (parse_res == -1) { nis_freeresult (result); - *errnop = ERANGE; return NSS_STATUS_TRYAGAIN; } else @@ -275,8 +292,12 @@ _nss_nisplus_getntohost_r (const struct ether_addr *addr, { if (tablename_val == NULL) { + __libc_lock_lock (lock); + enum nss_status status = _nss_create_tablename (errnop); + __libc_lock_unlock (lock); + if (status != NSS_STATUS_SUCCESS) return status; } @@ -286,44 +307,45 @@ _nss_nisplus_getntohost_r (const struct ether_addr *addr, *errnop = EINVAL; return NSS_STATUS_UNAVAIL; } - else - { - int parse_res; - nis_result *result; - char buf[255 + tablename_len]; - sprintf (buf, "[addr=%x:%x:%x:%x:%x:%x],ethers.org_dir", - addr->ether_addr_octet[0], addr->ether_addr_octet[1], - addr->ether_addr_octet[2], addr->ether_addr_octet[3], - addr->ether_addr_octet[4], addr->ether_addr_octet[5]); + int parse_res; + char buf[26 + tablename_len]; - result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); + snprintf (buf, sizeof (buf), + "[addr=%" PRIx8 ":%" PRIx8 ":%" PRIx8 ":%" PRIx8 ":%" PRIx8 + ":%" PRIx8 "],%s", + addr->ether_addr_octet[0], addr->ether_addr_octet[1], + addr->ether_addr_octet[2], addr->ether_addr_octet[3], + addr->ether_addr_octet[4], addr->ether_addr_octet[5], + tablename_val); - if (result == NULL) - { - *errnop = ENOMEM; - return NSS_STATUS_TRYAGAIN; - } - if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) + nis_result *result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); + + if (result == NULL) + { + *errnop = ENOMEM; + return NSS_STATUS_TRYAGAIN; + } + + if (__builtin_expect (niserr2nss (result->status) != NSS_STATUS_SUCCESS, 0)) + { + enum nss_status status = niserr2nss (result->status); + nis_freeresult (result); + return status; + } + + parse_res = _nss_nisplus_parse_etherent (result, eth, buffer, + buflen, errnop); + if (__builtin_expect (parse_res < 1, 0)) + { + if (parse_res == -1) { - enum nss_status status = niserr2nss (result->status); nis_freeresult (result); - return status; + return NSS_STATUS_TRYAGAIN; } - parse_res = _nss_nisplus_parse_etherent (result, eth, buffer, - buflen, errnop); - if (parse_res < 1) - { - if (parse_res == -1) - { - nis_freeresult (result); - *errnop = ERANGE; - return NSS_STATUS_TRYAGAIN; - } - else - return NSS_STATUS_NOTFOUND; - } - return NSS_STATUS_SUCCESS; + return NSS_STATUS_NOTFOUND; } + + return NSS_STATUS_SUCCESS; } diff --git a/nis/nss_nisplus/nisplus-hosts.c b/nis/nss_nisplus/nisplus-hosts.c index 540469894e..81f8a984dc 100644 --- a/nis/nss_nisplus/nisplus-hosts.c +++ b/nis/nss_nisplus/nisplus-hosts.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1997-2002, 2003 Free Software Foundation, Inc. +/* Copyright (C) 1997-2002, 2003, 2005 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Thorsten Kukuk <kukuk@suse.de>, 1997. @@ -17,15 +17,16 @@ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ -#include <nss.h> -#include <netdb.h> -#include <errno.h> +#include <atomic.h> #include <ctype.h> +#include <errno.h> +#include <netdb.h> +#include <nss.h> #include <string.h> -#include <netinet/in.h> #include <arpa/inet.h> -#include <bits/libc-lock.h> +#include <netinet/in.h> #include <rpcsvc/nis.h> +#include <bits/libc-lock.h> #include "nss-nisplus.h" @@ -180,19 +181,26 @@ _nss_create_tablename (int *errnop) { if (tablename_val == NULL) { - char buf [40 + strlen (nis_local_directory ())]; - char *p; + const char *local_dir = nis_local_directory (); + size_t local_dir_len = strlen (local_dir); + static const char prefix[] = "hosts.org_dir."; - p = __stpcpy (buf, "hosts.org_dir."); - p = __stpcpy (p, nis_local_directory ()); - tablename_val = __strdup (buf); + char *p = malloc (sizeof (prefix) + local_dir_len); if (tablename_val == NULL) { *errnop = errno; return NSS_STATUS_TRYAGAIN; } - tablename_len = strlen (tablename_val); + + memcpy (__stpcpy (p, prefix), local_dir, local_dir_len + 1); + + tablename_len = sizeof (prefix) - 1 + local_dir_len; + + atomic_write_barrier (); + + tablename_val = p; } + return NSS_STATUS_SUCCESS; } @@ -204,9 +212,11 @@ _nss_nisplus_sethostent (int stayopen) __libc_lock_lock (lock); - if (result) - nis_freeresult (result); - result = NULL; + if (result != NULL) + { + nis_freeresult (result); + result = NULL; + } if (tablename_val == NULL) status = _nss_create_tablename (&err); @@ -221,9 +231,11 @@ _nss_nisplus_endhostent (void) { __libc_lock_lock (lock); - if (result) - nis_freeresult (result); - result = NULL; + if (result != NULL) + { + nis_freeresult (result); + result = NULL; + } __libc_lock_unlock (lock); @@ -335,8 +347,12 @@ internal_gethostbyname2_r (const char *name, int af, struct hostent *host, if (tablename_val == NULL) { + __libc_lock_lock (lock); + enum nss_status status = _nss_create_tablename (errnop); + __libc_lock_unlock (lock); + if (status != NSS_STATUS_SUCCESS) { *herrnop = NETDB_INTERNAL; @@ -350,75 +366,81 @@ internal_gethostbyname2_r (const char *name, int af, struct hostent *host, *herrnop = NETDB_INTERNAL; return NSS_STATUS_NOTFOUND; } - else - { - nis_result *result; - char buf[strlen (name) + 255 + tablename_len]; - int olderr = errno; - /* Search at first in the alias list, and use the correct name - for the next search */ - sprintf (buf, "[name=%s],%s", name, tablename_val); - result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); + nis_result *result; + char buf[strlen (name) + 10 + tablename_len]; + int olderr = errno; - if (result != NULL) - { - /* If we do not find it, try it as original name. But if the - 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, - "hosts_tbl") != 0 - || result->objects.objects_val->EN_data.en_cols.en_cols_len < 3) - sprintf (buf, "[cname=%s],%s", name, tablename_val); - else - sprintf (buf, "[cname=%s],%s", NISENTRYVAL(0, 0, result), - tablename_val); - - nis_freeresult (result); - result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); - } + /* Search at first in the alias list, and use the correct name + for the next search. */ + snprintf (buf, sizeof (buf), "[name=%s],%s", name, tablename_val); + result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); - if (result == NULL) + if (result != NULL) + { + char *bufptr = buf; + + /* If we did not find it, try it as original name. But if the + 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, + "hosts_tbl") != 0 + || result->objects.objects_val->EN_data.en_cols.en_cols_len < 3) + snprintf (buf, sizeof (buf), "[cname=%s],%s", name, tablename_val); + else { - *errnop = ENOMEM; - return NSS_STATUS_TRYAGAIN; + /* We need to allocate a new buffer since there is no + guarantee the returned name has |