diff options
Diffstat (limited to 'libbb/my_getug.c')
-rw-r--r-- | libbb/my_getug.c | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/libbb/my_getug.c b/libbb/my_getug.c new file mode 100644 index 0000000..894dc5f --- /dev/null +++ b/libbb/my_getug.c @@ -0,0 +1,64 @@ +/* vi: set sw=4 ts=4: */ +/* + * Utility routines. + * + * Copyright (C) 2004 by Tito Ragusa <farmatito@tiscali.it> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program 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 + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + + /* + * + * if bufsize is > 0 char *idname can not be set to NULL. + * On success idname is written on static allocated buffer + * (and a pointer to it is returned). + * On failure uid or gid as string is written to static allocated buffer + * and NULL is returned. + * if bufsize is = 0 char *idname can be set to NULL. + * On success idname is returned. + * On failure NULL is returned. + * if bufsize is < 0 char *idname can be set to NULL. + * On success idname is returned. + * On failure an error message is printed and the program exits. + */ + +#include <stdio.h> +#include <assert.h> +#include "libbb.h" + + +/* internal function for my_getpwuid and my_getgrgid */ +char * my_getug(char *buffer, char *idname, long id, int bufsize, char prefix) +{ + if(bufsize > 0 ) { + assert(buffer!=NULL); + if(idname) { + return safe_strncpy(buffer, idname, bufsize); + } + snprintf(buffer, bufsize, "%ld", id); + } else if(bufsize < 0 && !idname) { + bb_error_msg_and_die("unknown %cid %ld", prefix, id); + } + return idname; +} + +/* END CODE */ +/* +Local Variables: +c-file-style: "linux" +c-basic-offset: 4 +tab-width: 4 +End: +*/ |