diff options
Diffstat (limited to 'release/src/router/busybox/chmod_chown_chgrp.c')
| -rw-r--r-- | release/src/router/busybox/chmod_chown_chgrp.c | 166 |
1 files changed, 166 insertions, 0 deletions
diff --git a/release/src/router/busybox/chmod_chown_chgrp.c b/release/src/router/busybox/chmod_chown_chgrp.c new file mode 100644 index 00000000..4fc98690 --- /dev/null +++ b/release/src/router/busybox/chmod_chown_chgrp.c @@ -0,0 +1,166 @@ +/* vi: set sw=4 ts=4: */ +/* + * Mini chown/chmod/chgrp implementation for busybox + * + * + * Copyright (C) 1999,2000,2001 by Lineo, inc. + * Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org> + * + * 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 + * + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include "busybox.h" +#define BB_DECLARE_EXTERN +#define bb_need_invalid_option +#define bb_need_too_few_args +#include "messages.c" + + + +static long uid = -1; +static long gid = -1; +static int whichApp; +static char *theMode = NULL; + + +#define CHGRP_APP 1 +#define CHOWN_APP 2 +#define CHMOD_APP 3 + +static int fileAction(const char *fileName, struct stat *statbuf, void* junk) +{ + switch (whichApp) { + case CHGRP_APP: + case CHOWN_APP: +#if (__GLIBC__ >= 2) && (__GLIBC_MINOR__ >= 1) + if (lchown + (fileName, (whichApp == CHOWN_APP) ? uid : statbuf->st_uid, + (gid == -1) ? statbuf->st_gid : gid) == 0) +#else + if (chown + (fileName, (whichApp == CHOWN_APP) ? uid : statbuf->st_uid, + (gid == -1) ? statbuf->st_gid : gid) == 0) +#endif + { + return (TRUE); + } + break; + case CHMOD_APP: + /* Parse the specified modes */ + if (parse_mode(theMode, &(statbuf->st_mode)) == FALSE) { + error_msg_and_die( "unknown mode: %s", theMode); + } + if (chmod(fileName, statbuf->st_mode) == 0) + return (TRUE); + break; + } + perror(fileName); + return (FALSE); +} + +int chmod_chown_chgrp_main(int argc, char **argv) +{ + int stopIt = FALSE; + int recursiveFlag = FALSE; + char *groupName=NULL; + char *p=NULL; + + whichApp = (applet_name[2]=='o')? /* chown */ + CHOWN_APP : (applet_name[2]=='m')? /* chmod */ + CHMOD_APP : CHGRP_APP; + + if (argc < 2) + show_usage(); + argv++; + + /* Parse options */ + while (--argc >= 0 && *argv && (**argv == '-')) { + while (stopIt==FALSE && *++(*argv)) { + switch (**argv) { + case 'R': + recursiveFlag = TRUE; + break; + default: + theMode=*argv-1; + stopIt = TRUE; + } + } + if (stopIt==TRUE) + break; + argv++; + } + + if (argc == 0 || *argv == NULL) { + error_msg(too_few_args); + } + + if (whichApp == CHMOD_APP) { + if (theMode==NULL) + theMode = *argv; + } else { + + /* Find the selected group */ + if (whichApp == CHGRP_APP) { + groupName = *argv; + gid = strtoul(groupName, &p, 10); /* maybe it's already numeric */ + if (groupName == p) + gid = my_getgrnam(groupName); + } else { + groupName = strchr(*argv, '.'); + if (groupName == NULL) + groupName = strchr(*argv, ':'); + if (groupName) { + *groupName++ = '\0'; + gid = strtoul(groupName, &p, 10); + if (groupName == p) + gid = my_getgrnam(groupName); + } else + gid = -1; + } + + + /* Find the selected user (if appropriate) */ + if (whichApp == CHOWN_APP) { + uid = strtoul(*argv, &p, 10); /* if numeric ... */ + if (*argv == p) + uid = my_getpwnam(*argv); + } + } + + /* Ok, ready to do the deed now */ + if (argc < 1) { + error_msg_and_die(too_few_args); + } + while (argc-- > 1) { + if (recursive_action (*(++argv), recursiveFlag, FALSE, FALSE, + fileAction, fileAction, NULL) == FALSE) + return EXIT_FAILURE; + } + return EXIT_SUCCESS; + +} + +/* +Local Variables: +c-file-style: "linux" +c-basic-offset: 4 +tab-width: 4 +End: +*/ |