diff options
Diffstat (limited to 'libc/pwd_grp/getpwnam.c')
-rw-r--r-- | libc/pwd_grp/getpwnam.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/libc/pwd_grp/getpwnam.c b/libc/pwd_grp/getpwnam.c new file mode 100644 index 000000000..85dbc8ed8 --- /dev/null +++ b/libc/pwd_grp/getpwnam.c @@ -0,0 +1,52 @@ +/* + * getpwnam.c - This file is part of the libc-8086/pwd package for ELKS, + * Copyright (C) 1995, 1996 Nat Friedman <ndf@linux.mit.edu>. + * + * 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. + * + */ + +#include <unistd.h> +#include <string.h> +#include <errno.h> +#include <fcntl.h> +#include <pwd.h> + + +struct passwd * +getpwnam(const char * name) +{ + int passwd_fd; + struct passwd * passwd; + + if (name==NULL) + { + errno=EINVAL; + return NULL; + } + + if ((passwd_fd=open("/etc/passwd", O_RDONLY))<0) + return NULL; + + while ((passwd=__getpwent(passwd_fd))!=NULL) + if (!strcmp(passwd->pw_name, name)) + { + close(passwd_fd); + return passwd; + } + + close(passwd_fd); + return NULL; +} |