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/*
* Copyright (C) 2003 Manuel Novoa III <mjn3@uclibc.org>
* Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
*
* Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
*/
/* Nov 6, 2003 Initial version.
*
* NOTE: This implementation is quite strict about requiring all
* field seperators. It also does not allow leading whitespace
* except when processing the numeric fields. glibc is more
* lenient. See the various glibc difference comments below.
*
* TODO:
* Move to dynamic allocation of (currently statically allocated)
* buffers; especially for the group-related functions since
* large group member lists will cause error returns.
*
*/
#include <features.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include <stddef.h>
#include <errno.h>
#include <assert.h>
#include <ctype.h>
#include <pwd.h>
#include <grp.h>
#include <paths.h>
#ifdef __UCLIBC_HAS_SHADOW__
#include <shadow.h>
#endif
/**********************************************************************/
/* Prototypes for internal functions. */
#if !defined(GETXXKEY_R_FUNC) && !defined(GETXXKEY_FUNC)
#error GETXXKEY_R_FUNC/GETXXKEY_FUNC are not defined!
#endif
/**********************************************************************/
#ifdef GETXXKEY_R_FUNC
libc_hidden_proto(GETXXKEY_R_FUNC)
int GETXXKEY_R_FUNC(DO_GETXXKEY_R_KEYTYPE key,
GETXXKEY_R_ENTTYPE *__restrict resultbuf,
char *__restrict buffer, size_t buflen,
GETXXKEY_R_ENTTYPE **__restrict result)
{
FILE *stream;
int rv;
*result = NULL;
if (!(stream = fopen(DO_GETXXKEY_R_PATHNAME, "r"))) {
rv = errno;
} else {
__STDIO_SET_USER_LOCKING(stream);
do {
if (!(rv = __pgsreader(GETXXKEY_R_PARSER, resultbuf,
buffer, buflen, stream))
) {
if (GETXXKEY_R_TEST(resultbuf)) { /* Found key? */
*result = resultbuf;
break;
}
} else {
if (rv == ENOENT) { /* end-of-file encountered. */
rv = 0;
}
break;
}
} while (1);
fclose(stream);
}
return rv;
}
libc_hidden_def(GETXXKEY_R_FUNC)
#endif /* GETXXKEY_R_FUNC */
/**********************************************************************/
#ifdef GETXXKEY_FUNC
#define REENTRANT_NAME APPEND_R(GETXXKEY_FUNC)
#define APPEND_R(name) APPEND_R1(name)
#define APPEND_R1(name) name##_r
GETXXKEY_ENTTYPE *GETXXKEY_FUNC(GETXXKEY_ADD_PARAMS)
{
static char buffer[GETXXKEY_BUFLEN];
static GETXXKEY_ENTTYPE resultbuf;
GETXXKEY_ENTTYPE *result;
# ifdef GETXXKEY_ADD_VARIABLES
REENTRANT_NAME(GETXXKEY_ADD_VARIABLES, &resultbuf, buffer, sizeof(buffer), &result);
# else
REENTRANT_NAME(&resultbuf, buffer, sizeof(buffer), &result);
# endif
return result;
}
#ifdef GETXXKEY_FUNC_HIDDEN
libc_hidden_def(GETXXKEY_FUNC)
#endif
#undef REENTRANT_NAME
#undef APPEND_R
#undef APPEND_R1
#endif /* GETXXKEY_FUNC */
/**********************************************************************/
#undef GETXXKEY_FUNC
#undef GETXXKEY_ENTTYPE
#undef GETXXKEY_BUFLEN
#undef GETXXKEY_FUNC_HIDDEN
#undef GETXXKEY_ADD_PARAMS
#undef GETXXKEY_ADD_VARIABLES
#undef GETXXKEY_R_FUNC
#undef GETXXKEY_R_PARSER
#undef GETXXKEY_R_ENTTYPE
#undef GETXXKEY_R_TEST
#undef DO_GETXXKEY_R_KEYTYPE
#undef DO_GETXXKEY_R_PATHNAME
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