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author | Lorry Tar Creator <lorry-tar-importer@lorry> | 2016-01-20 10:55:18 +0000 |
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committer | Lorry Tar Creator <lorry-tar-importer@lorry> | 2016-01-20 10:55:18 +0000 |
commit | 70e9163c9c18e995515598085cb824e554eb7ae7 (patch) | |
tree | a42dc8b2a6c031354bf31472de888bfc8a060132 /lib/idcache.c | |
parent | cbf5993c43f49281173f185863577d86bfac6eae (diff) | |
download | coreutils-tarball-70e9163c9c18e995515598085cb824e554eb7ae7.tar.gz |
coreutils-8.25HEADcoreutils-8.25master
Diffstat (limited to 'lib/idcache.c')
-rw-r--r-- | lib/idcache.c | 54 |
1 files changed, 30 insertions, 24 deletions
diff --git a/lib/idcache.c b/lib/idcache.c index 0706f00..a5f14ad 100644 --- a/lib/idcache.c +++ b/lib/idcache.c @@ -1,12 +1,12 @@ /* idcache.c -- map user and group IDs, cached for speed - Copyright (C) 1985, 1988, 1989, 1990, 1997, 1998, 2003, 2005, 2006 - Free Software Foundation, Inc. + Copyright (C) 1985, 1988-1990, 1997-1998, 2003, 2005-2007, 2009-2016 Free + Software Foundation, Inc. - This program is free software; you can redistribute it and/or modify + This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) - any later version. + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of @@ -14,15 +14,14 @@ GNU General Public License for more details. You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software Foundation, - Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ + along with this program. If not, see <http://www.gnu.org/licenses/>. */ #include <config.h> +#include "idcache.h" #include <stddef.h> #include <stdio.h> #include <string.h> -#include <sys/types.h> #include <pwd.h> #include <grp.h> @@ -45,11 +44,24 @@ struct userid char name[FLEXIBLE_ARRAY_MEMBER]; }; +/* FIXME: provide a function to free any malloc'd storage and reset lists, + so that an application can use code like this just before exiting: + #ifdef lint + idcache_clear (); + #endif +*/ + static struct userid *user_alist; /* Each entry on list is a user name for which the first lookup failed. */ static struct userid *nouser_alist; +/* Use the same struct as for userids. */ +static struct userid *group_alist; + +/* Each entry on list is a group name for which the first lookup failed. */ +static struct userid *nogroup_alist; + /* Translate UID to a login name, with cache, or NULL if unresolved. */ char * @@ -61,10 +73,10 @@ getuser (uid_t uid) for (tail = user_alist; tail; tail = tail->next) { if (tail->id.u == uid) - { - match = tail; - break; - } + { + match = tail; + break; + } } if (match == NULL) @@ -111,7 +123,7 @@ getuidbyname (const char *user) if (!pwent && strspn (user, digits) < strlen (user)) { setenv ("USER", user, 1); - pwent = getpwnam (user); /* now it will succeed */ + pwent = getpwnam (user); /* now it will succeed */ } #endif @@ -132,12 +144,6 @@ getuidbyname (const char *user) return NULL; } -/* Use the same struct as for userids. */ -static struct userid *group_alist; - -/* Each entry on list is a group name for which the first lookup failed. */ -static struct userid *nogroup_alist; - /* Translate GID to a group name, with cache, or NULL if unresolved. */ char * @@ -149,10 +155,10 @@ getgroup (gid_t gid) for (tail = group_alist; tail; tail = tail->next) { if (tail->id.g == gid) - { - match = tail; - break; - } + { + match = tail; + break; + } } if (match == NULL) @@ -199,7 +205,7 @@ getgidbyname (const char *group) if (!grent && strspn (group, digits) < strlen (group)) { setenv ("GROUP", group, 1); - grent = getgrnam (group); /* now it will succeed */ + grent = getgrnam (group); /* now it will succeed */ } #endif |