Files
cdesktop/cde/programs/dtksh/ksh93/src/lib/libast/string/struid.c

149 lines
4.7 KiB
C

/*
* CDE - Common Desktop Environment
*
* Copyright (c) 1993-2012, The Open Group. All rights reserved.
*
* These libraries and programs are free software; you can
* redistribute them and/or modify them under the terms of the GNU
* Lesser General Public License as published by the Free Software
* Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* These libraries and programs are distributed in the hope that
* they will be useful, but WITHOUT ANY WARRANTY; without even the
* implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU Lesser General Public License for more
* details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with these librararies and programs; if not, write
* to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
* Floor, Boston, MA 02110-1301 USA
*/
/* $XConsortium: struid.c /main/3 1995/11/01 18:51:23 rswiston $ */
/***************************************************************
* *
* AT&T - PROPRIETARY *
* *
* THIS IS PROPRIETARY SOURCE CODE LICENSED BY *
* AT&T CORP. *
* *
* Copyright (c) 1995 AT&T Corp. *
* All Rights Reserved *
* *
* This software is licensed by AT&T Corp. *
* under the terms and conditions of the license in *
* http://www.research.att.com/orgs/ssr/book/reuse *
* *
* This software was created by the *
* Software Engineering Research Department *
* AT&T Bell Laboratories *
* *
* For further information contact *
* gsf@research.att.com *
* *
***************************************************************/
/* : : generated by proto : : */
#if !defined(__PROTO__)
#if defined(__STDC__) || defined(__cplusplus) || defined(_proto) || defined(c_plusplus)
#if defined(__cplusplus)
#define __MANGLE__ "C"
#else
#define __MANGLE__
#endif
#define __STDARG__
#define __PROTO__(x) x
#define __OTORP__(x)
#define __PARAM__(n,o) n
#if !defined(__STDC__) && !defined(__cplusplus)
#if !defined(c_plusplus)
#define const
#endif
#define signed
#define void int
#define volatile
#define __V_ char
#else
#define __V_ void
#endif
#else
#define __PROTO__(x) ()
#define __OTORP__(x) x
#define __PARAM__(n,o) o
#define __MANGLE__
#define __V_ char
#define const
#define signed
#define void int
#define volatile
#endif
#if defined(__cplusplus) || defined(c_plusplus)
#define __VARARG__ ...
#else
#define __VARARG__
#endif
#if defined(__STDARG__)
#define __VA_START__(p,a) va_start(p,a)
#else
#define __VA_START__(p,a) va_start(p)
#endif
#endif
#if defined(__STDPP__directive) && defined(__STDPP__hide)
__STDPP__directive pragma pp:hide getpwnam getpwuid
#else
#define getpwnam ______getpwnam
#define getpwuid ______getpwuid
#endif
#include <ast.h>
#include <hash.h>
/* on linux pwd.h can include FILE without stdio.h which clashes with sfio_t */
#if defined(linux)
#ifndef __FILE_defined
#define __FILE_defined 1
#endif
#endif
#include <pwd.h>
#if defined(__STDPP__directive) && defined(__STDPP__hide)
__STDPP__directive pragma pp:nohide getpwnam getpwuid
#else
#undef getpwnam
#undef getpwuid
#endif
extern __MANGLE__ struct passwd* getpwnam __PROTO__((const char*));
extern __MANGLE__ struct passwd* getpwuid __PROTO__((uid_t));
typedef struct
{
HASH_HEADER;
int id;
} bucket;
/*
* return uid number given uid name
* -1 on first error for a given name
* -2 on subsequent errors for a given name
*/
int
struid __PARAM__((const char* name), (name)) __OTORP__(const char* name;){
register struct passwd* pw;
register bucket* b;
char* e;
static Hash_table_t* uidtab;
if (!uidtab && !(uidtab = hashalloc(NiL, HASH_set, HASH_ALLOCATE, HASH_name, "uidnam", 0))) return(-1);
if (b = (bucket*)hashlook(uidtab, name, HASH_LOOKUP|HASH_FIXED, (char*)sizeof(bucket))) return(b->id);
if (!(b = (bucket*)hashlook(uidtab, NiL, HASH_CREATE|HASH_FIXED, (char*)sizeof(bucket)))) return(-1);
if (pw = getpwnam(name)) return(b->id = pw->pw_uid);
b->id = strtol(name, &e, 0);
if (!*e && getpwuid(b->id)) return(b->id);
b->id = -2;
return(-1);
}