| /* Copyright (C) 1991-2014 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 <stdio.h> |
| #include <pwd.h> |
| |
| #define flockfile(s) _IO_flockfile (s) |
| #define funlockfile(s) _IO_funlockfile (s) |
| |
| /* Define a line parsing function using the common code |
| used in the nss_files module. */ |
| |
| #define STRUCTURE passwd |
| #define ENTNAME pwent |
| struct pwent_data {}; |
| |
| #include <nss/nss_files/files-parse.c> |
| LINE_PARSER |
| (, |
| STRING_FIELD (result->pw_name, ISCOLON, 0); |
| if (line[0] == '\0' |
| && (result->pw_name[0] == '+' || result->pw_name[0] == '-')) |
| { |
| /* This a special case. We allow lines containing only a `+' sign |
| since this is used for nss_compat. All other services will |
| reject this entry later. Initialize all other fields now. */ |
| result->pw_passwd = NULL; |
| result->pw_uid = 0; |
| result->pw_gid = 0; |
| result->pw_gecos = NULL; |
| result->pw_dir = NULL; |
| result->pw_shell = NULL; |
| } |
| else |
| { |
| STRING_FIELD (result->pw_passwd, ISCOLON, 0); |
| if (result->pw_name[0] == '+' || result->pw_name[0] == '-') |
| { |
| INT_FIELD_MAYBE_NULL (result->pw_uid, ISCOLON, 0, 10, , 0) |
| INT_FIELD_MAYBE_NULL (result->pw_gid, ISCOLON, 0, 10, , 0) |
| } |
| else |
| { |
| INT_FIELD (result->pw_uid, ISCOLON, 0, 10,) |
| INT_FIELD (result->pw_gid, ISCOLON, 0, 10,) |
| } |
| STRING_FIELD (result->pw_gecos, ISCOLON, 0); |
| STRING_FIELD (result->pw_dir, ISCOLON, 0); |
| result->pw_shell = line; |
| } |
| ) |
| |
| |
| /* Read one entry from the given stream. */ |
| int |
| __fgetpwent_r (FILE *stream, struct passwd *resbuf, char *buffer, |
| size_t buflen, struct passwd **result) |
| { |
| char *p; |
| |
| flockfile (stream); |
| do |
| { |
| buffer[buflen - 1] = '\xff'; |
| p = fgets_unlocked (buffer, buflen, stream); |
| if (p == NULL && feof_unlocked (stream)) |
| { |
| funlockfile (stream); |
| *result = NULL; |
| __set_errno (ENOENT); |
| return errno; |
| } |
| if (p == NULL || buffer[buflen - 1] != '\xff') |
| { |
| funlockfile (stream); |
| *result = NULL; |
| __set_errno (ERANGE); |
| return errno; |
| } |
| |
| /* Skip leading blanks. */ |
| while (isspace (*p)) |
| ++p; |
| } while (*p == '\0' || *p == '#' || /* Ignore empty and comment lines. */ |
| /* Parse the line. If it is invalid, loop to |
| get the next line of the file to parse. */ |
| ! parse_line (p, resbuf, (void *) buffer, buflen, &errno)); |
| |
| funlockfile (stream); |
| |
| *result = resbuf; |
| return 0; |
| } |
| weak_alias (__fgetpwent_r, fgetpwent_r) |