diff options
Diffstat (limited to 'nss/fgetgrent_r.c')
-rw-r--r-- | nss/fgetgrent_r.c | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/nss/fgetgrent_r.c b/nss/fgetgrent_r.c new file mode 100644 index 0000000000..5ce70230f1 --- /dev/null +++ b/nss/fgetgrent_r.c @@ -0,0 +1,65 @@ +/* Copyright (C) 1991-2023 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 + <https://www.gnu.org/licenses/>. */ + +#include <ctype.h> +#include <errno.h> +#include <grp.h> +#include <stdio.h> + +/* Define a line parsing function using the common code + used in the nss_files module. */ + +#define STRUCTURE group +#define ENTNAME grent +struct grent_data {}; + +#define TRAILING_LIST_MEMBER gr_mem +#define TRAILING_LIST_SEPARATOR_P(c) ((c) == ',') +#include <nss/nss_files/files-parse.c> +LINE_PARSER +(, + STRING_FIELD (result->gr_name, ISCOLON, 0); + if (line[0] == '\0' + && (result->gr_name[0] == '+' || result->gr_name[0] == '-')) + { + result->gr_passwd = NULL; + result->gr_gid = 0; + } + else + { + STRING_FIELD (result->gr_passwd, ISCOLON, 0); + if (result->gr_name[0] == '+' || result->gr_name[0] == '-') + INT_FIELD_MAYBE_NULL (result->gr_gid, ISCOLON, 0, 10, , 0) + else + INT_FIELD (result->gr_gid, ISCOLON, 0, 10,) + } + ) + + +/* Read one entry from the given stream. */ +int +__fgetgrent_r (FILE *stream, struct group *resbuf, char *buffer, size_t buflen, + struct group **result) +{ + int ret = __nss_fgetent_r (stream, resbuf, buffer, buflen, parse_line); + if (ret == 0) + *result = resbuf; + else + *result = NULL; + return ret; +} +weak_alias (__fgetgrent_r, fgetgrent_r) |