busybox/coreutils/rm.c

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/* vi: set sw=4 ts=4: */
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/*
* Mini rm implementation for busybox
*
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* Copyright (C) 2001 Matt Kraai <kraai@alumni.carnegiemellon.edu>
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*
* Licensed under GPLv2 or later, see file LICENSE in this source tree.
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*/
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/* Mar 16, 2003 Manuel Novoa III (mjn3@codepoet.org)
*
* Size reduction.
*/
//config:config RM
//config: bool "rm (4.9 kb)"
//config: default y
//config: help
//config: rm is used to remove files or directories.
//applet:IF_RM(APPLET_NOFORK(rm, rm, BB_DIR_BIN, BB_SUID_DROP, rm))
//kbuild:lib-$(CONFIG_RM) += rm.o
/* BB_AUDIT SUSv3 compliant */
/* http://www.opengroup.org/onlinepubs/007904975/utilities/rm.html */
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//usage:#define rm_trivial_usage
//usage: "[-irf] FILE..."
//usage:#define rm_full_usage "\n\n"
//usage: "Remove (unlink) FILEs\n"
//usage: "\n -i Always prompt before removing"
//usage: "\n -f Never prompt"
//usage: "\n -R,-r Recurse"
//usage:
//usage:#define rm_example_usage
//usage: "$ rm -rf /tmp/foo\n"
#include "libbb.h"
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/* This is a NOFORK applet. Be very careful! */
int rm_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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int rm_main(int argc UNUSED_PARAM, char **argv)
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{
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int status = 0;
int flags = 0;
unsigned opt;
opt_complementary = "f-i:i-f";
opt = getopt32(argv, "fiRrv");
argv += optind;
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if (opt & 1)
flags |= FILEUTILS_FORCE;
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if (opt & 2)
flags |= FILEUTILS_INTERACTIVE;
if (opt & (8|4))
flags |= FILEUTILS_RECUR;
if ((opt & 16) && FILEUTILS_VERBOSE)
flags |= FILEUTILS_VERBOSE;
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if (*argv != NULL) {
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do {
const char *base = bb_get_last_path_component_strip(*argv);
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if (DOT_OR_DOTDOT(base)) {
bb_error_msg("can't remove '.' or '..'");
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} else if (remove_file(*argv, flags) >= 0) {
continue;
}
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status = 1;
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} while (*++argv);
} else if (!(flags & FILEUTILS_FORCE)) {
bb_show_usage();
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}
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return status;
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}