busybox/libbb/remove_file.c

/* vi: set sw=4 ts=4: */
/*
 * Mini remove_file implementation for busybox
 *
 * Copyright (C) 2001 Matt Kraai <kraai@alumni.carnegiemellon.edu>
 *
 * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
 */

#include <stdio.h>
#include <time.h>
#include <utime.h>
#include <dirent.h>
#include <errno.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <getopt.h>
#include "libbb.h"

int remove_file(const char *path, int flags)
{
	struct stat path_stat;
	int path_exists = 1;

	if (lstat(path, &path_stat) < 0) {
		if (errno != ENOENT) {
			bb_perror_msg("cannot stat '%s'", path);
			return -1;
		}

		path_exists = 0;
	}

	if (!path_exists) {
		if (!(flags & FILEUTILS_FORCE)) {
			bb_perror_msg("cannot remove '%s'", path);
			return -1;
		}
		return 0;
	}

	if (S_ISDIR(path_stat.st_mode)) {
		DIR *dp;
		struct dirent *d;
		int status = 0;

		if (!(flags & FILEUTILS_RECUR)) {
			bb_error_msg("%s: is a directory", path);
			return -1;
		}

		if ((!(flags & FILEUTILS_FORCE) && access(path, W_OK) < 0 &&
					isatty(0)) ||
				(flags & FILEUTILS_INTERACTIVE)) {
			fprintf(stderr, "%s: descend into directory '%s'? ", applet_name,
					path);
			if (!bb_ask_confirmation())
				return 0;
		}

		if ((dp = opendir(path)) == NULL) {
			return -1;
		}

		while ((d = readdir(dp)) != NULL) {
			char *new_path;

			new_path = concat_subpath_file(path, d->d_name);
			if(new_path == NULL)
				continue;
			if (remove_file(new_path, flags) < 0)
				status = -1;
			free(new_path);
		}

		if (closedir(dp) < 0) {
			bb_perror_msg("cannot close '%s'", path);
			return -1;
		}

		if (flags & FILEUTILS_INTERACTIVE) {
			fprintf(stderr, "%s: remove directory '%s'? ", applet_name, path);
			if (!bb_ask_confirmation())
				return status;
		}

		if (rmdir(path) < 0) {
			bb_perror_msg("cannot remove '%s'", path);
			return -1;
		}

		return status;
	} else {
		if ((!(flags & FILEUTILS_FORCE) && access(path, W_OK) < 0 &&
					!S_ISLNK(path_stat.st_mode) &&
					isatty(0)) ||
				(flags & FILEUTILS_INTERACTIVE)) {
			fprintf(stderr, "%s: remove '%s'? ", applet_name, path);
			if (!bb_ask_confirmation())
				return 0;
		}

		if (unlink(path) < 0) {
			bb_perror_msg("cannot remove '%s'", path);
			return -1;
		}

		return 0;
	}
}
1	/* vi: set sw=4 ts=4: */
2	/*
3	* Mini remove_file implementation for busybox
4	*
5	* Copyright (C) 2001 Matt Kraai <kraai@alumni.carnegiemellon.edu>
6	*
7	* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
8	*/
9
10	#include <stdio.h>
11	#include <time.h>
12	#include <utime.h>
13	#include <dirent.h>
14	#include <errno.h>
15	#include <unistd.h>
16	#include <stdlib.h>
17	#include <string.h>
18	#include <getopt.h>
19	#include "libbb.h"
20
21	int remove_file(const char *path, int flags)
22	{
23	struct stat path_stat;
24	int path_exists = 1;
25
26	if (lstat(path, &path_stat) < 0) {
27	if (errno != ENOENT) {
28	bb_perror_msg("cannot stat '%s'", path);
29	return -1;
30	}
31
32	path_exists = 0;
33	}
34
35	if (!path_exists) {
36	if (!(flags & FILEUTILS_FORCE)) {
37	bb_perror_msg("cannot remove '%s'", path);
38	return -1;
39	}
40	return 0;
41	}
42
43	if (S_ISDIR(path_stat.st_mode)) {
44	DIR *dp;
45	struct dirent *d;
46	int status = 0;
47
48	if (!(flags & FILEUTILS_RECUR)) {
49	bb_error_msg("%s: is a directory", path);
50	return -1;
51	}
52
53	if ((!(flags & FILEUTILS_FORCE) && access(path, W_OK) < 0 &&
54	isatty(0)) \|\|
55	(flags & FILEUTILS_INTERACTIVE)) {
56	fprintf(stderr, "%s: descend into directory '%s'? ", applet_name,
57	path);
58	if (!bb_ask_confirmation())
59	return 0;
60	}
61
62	if ((dp = opendir(path)) == NULL) {
63	return -1;
64	}
65
66	while ((d = readdir(dp)) != NULL) {
67	char *new_path;
68
69	new_path = concat_subpath_file(path, d->d_name);
70	if(new_path == NULL)
71	continue;
72	if (remove_file(new_path, flags) < 0)
73	status = -1;
74	free(new_path);
75	}
76
77	if (closedir(dp) < 0) {
78	bb_perror_msg("cannot close '%s'", path);
79	return -1;
80	}
81
82	if (flags & FILEUTILS_INTERACTIVE) {
83	fprintf(stderr, "%s: remove directory '%s'? ", applet_name, path);
84	if (!bb_ask_confirmation())
85	return status;
86	}
87
88	if (rmdir(path) < 0) {
89	bb_perror_msg("cannot remove '%s'", path);
90	return -1;
91	}
92
93	return status;
94	} else {
95	if ((!(flags & FILEUTILS_FORCE) && access(path, W_OK) < 0 &&
96	!S_ISLNK(path_stat.st_mode) &&
97	isatty(0)) \|\|
98	(flags & FILEUTILS_INTERACTIVE)) {
99	fprintf(stderr, "%s: remove '%s'? ", applet_name, path);
100	if (!bb_ask_confirmation())
101	return 0;
102	}
103
104	if (unlink(path) < 0) {
105	bb_perror_msg("cannot remove '%s'", path);
106	return -1;
107	}
108
109	return 0;
110	}
111	}