glibc/gshadow/sgetsgent_r.c

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/* Copyright (C) 2009-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it 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 the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <ctype.h>
#include <errno.h>
#include <gshadow.h>
#include <stdio.h>
#include <string.h>
/* Define a line parsing function using the common code
used in the nss_files module. */
#define STRUCTURE sgrp
#define ENTNAME sgent
struct sgent_data {};
#define TRAILING_LIST_MEMBER sg_mem
#define TRAILING_LIST_SEPARATOR_P(c) ((c) == ',')
#include <nss/nss_files/files-parse.c>
LINE_PARSER
(,
STRING_FIELD (result->sg_namp, ISCOLON, 0);
if (line[0] == '\0'
&& (result->sg_namp[0] == '+' || result->sg_namp[0] == '-'))
{
result->sg_passwd = NULL;
result->sg_adm = NULL;
result->sg_mem = NULL;
}
else
{
STRING_FIELD (result->sg_passwd, ISCOLON, 0);
STRING_LIST (result->sg_adm, ':');
}
)
/* Read one shadow entry from the given stream. */
int
__sgetsgent_r (const char *string, struct sgrp *resbuf, char *buffer,
size_t buflen, struct sgrp **result)
{
char *sp;
if (string < buffer || string >= buffer + buflen)
{
buffer[buflen - 1] = '\0';
sp = strncpy (buffer, string, buflen);
if (buffer[buflen - 1] != '\0')
return ERANGE;
}
else
sp = (char *) string;
int parse_result = parse_line (sp, resbuf, (void *) buffer, buflen, &errno);
*result = parse_result > 0 ? resbuf : NULL;
return *result == NULL ? errno : 0;
}
weak_alias (__sgetsgent_r, sgetsgent_r)