diff options
Diffstat (limited to 'libc/pwd_grp/__getpwent_r.c')
-rw-r--r-- | libc/pwd_grp/__getpwent_r.c | 115 |
1 files changed, 0 insertions, 115 deletions
diff --git a/libc/pwd_grp/__getpwent_r.c b/libc/pwd_grp/__getpwent_r.c deleted file mode 100644 index 6e6de4038..000000000 --- a/libc/pwd_grp/__getpwent_r.c +++ /dev/null @@ -1,115 +0,0 @@ -/* vi: set sw=4 ts=4: */ -/* - * __getpwent_r.c - This file is part of the libc-8086/pwd package for ELKS, - * Copyright (C) 1995, 1996 Nat Friedman <ndf@linux.mit.edu>. - * Copyright (C) 2001-2003 Erik Andersen <andersee@debian.org> - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This 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 - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with this library; if not, write to the Free - * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * - * March 7, 2001 -- Reworked to be reentrant by Erik Andersen - * Oct 9, 2003 -- Reworked again by Erik Andersen to be fully reentrant - */ - -#include <stdlib.h> -#include <unistd.h> -#include <string.h> -#include <fcntl.h> -#include <errno.h> -#include "config.h" - - -/* This isn't as flash as my previous version -- it doesn't dynamically - scale down the gecos on too-long lines, but it also makes fewer syscalls, - so it's probably nicer. Write me if you want the old version. Maybe I - should include it as a build-time option... ? - -Nat <ndf@linux.mit.edu> */ - -int __getpwent_r(struct passwd * passwd, char * line_buff, size_t buflen, int pwd_fd) -{ - char *endptr, *field_begin; - char *gid_ptr=NULL; - char *uid_ptr=NULL; - int i, line_len; - - if (buflen<PWD_BUFFER_SIZE) { - return ERANGE; - } - - /* We use the restart label to handle malformatted lines */ -restart: - /* Read the passwd line into the buffer for processing */ - if ((line_len = read(pwd_fd, line_buff, buflen)) <= 0) { - return EIO; - } - field_begin = strchr(line_buff, '\n'); - if (field_begin != NULL) - lseek(pwd_fd, (long) (1 + field_begin - (line_buff + line_len)), SEEK_CUR); - else { - /* The line is too long - skip it. :-\ */ - do { - if ((line_len = read(pwd_fd, line_buff, buflen)) <= 0) { - return EIO; - } - } while (!(field_begin = strchr(line_buff, '\n'))); - lseek(pwd_fd, (long) (field_begin - line_buff) - line_len + 1, SEEK_CUR); - goto restart; - } - if (*line_buff == '#' || *line_buff == ' ' || *line_buff == '\n' || *line_buff == '\t') - goto restart; - *field_begin = '\0'; - - /* We've read the line; now parse it. */ - field_begin = line_buff; - for (i = 0; i < 7; i++) { - switch (i) { - case 0: - passwd->pw_name = field_begin; - break; - case 1: - passwd->pw_passwd = field_begin; - break; - case 2: - uid_ptr = field_begin; - break; - case 3: - gid_ptr = field_begin; - break; - case 4: - passwd->pw_gecos = field_begin; - break; - case 5: - passwd->pw_dir = field_begin; - break; - case 6: - passwd->pw_shell = field_begin; - break; - } - if (i < 6) { - field_begin = strchr(field_begin, ':'); - if (field_begin == NULL) - goto restart; - *field_begin++ = '\0'; - } - } - passwd->pw_gid = (gid_t) strtoul(gid_ptr, &endptr, 10); - if (*endptr != '\0') - goto restart; - - passwd->pw_uid = (uid_t) strtoul(uid_ptr, &endptr, 10); - if (*endptr != '\0') - goto restart; - - return 0; -} |