1 // SPDX-License-Identifier: GPL-2.0
34 	int (*handler)(const char *line);
37 static void push_string(const char *name)  in push_string()  argument
39 	unsigned int name_len = strlen(name) + 1;  in push_string()
41 	fputs(name, stdout);  in push_string()
54 static void push_rest(const char *name)  in push_rest()  argument
56 	unsigned int name_len = strlen(name) + 1;  in push_rest()
59 	fputs(name, stdout);  in push_rest()
80 	const char name[] = "TRAILER!!!";  in cpio_trailer()  local
96 		(unsigned)strlen(name)+1, /* namesize */  in cpio_trailer()
99 	push_rest(name);  in cpio_trailer()
107 static int cpio_mkslink(const char *name, const char *target,  in cpio_mkslink()  argument
112 	if (name[0] == '/')  in cpio_mkslink()
113 		name++;  in cpio_mkslink()
128 		(unsigned)strlen(name) + 1,/* namesize */  in cpio_mkslink()
131 	push_string(name);  in cpio_mkslink()
138 static int cpio_mkslink_line(const char *line)  in cpio_mkslink_line()  argument
140 	char name[PATH_MAX + 1];  in cpio_mkslink_line()  local
145 	int rc = -1;  in cpio_mkslink_line()
147 …if (5 != sscanf(line, "%" str(PATH_MAX) "s %" str(PATH_MAX) "s %o %d %d", name, target, &mode, &ui…  in cpio_mkslink_line()
148 		fprintf(stderr, "Unrecognized dir format '%s'", line);  in cpio_mkslink_line()
151 	rc = cpio_mkslink(name, target, mode, uid, gid);  in cpio_mkslink_line()
156 static int cpio_mkgeneric(const char *name, unsigned int mode,  in cpio_mkgeneric()  argument
161 	if (name[0] == '/')  in cpio_mkgeneric()
162 		name++;  in cpio_mkgeneric()
177 		(unsigned)strlen(name) + 1,/* namesize */  in cpio_mkgeneric()
180 	push_rest(name);  in cpio_mkgeneric()
210 static int cpio_mkgeneric_line(const char *line, enum generic_types gt)  in cpio_mkgeneric_line()  argument
212 	char name[PATH_MAX + 1];  in cpio_mkgeneric_line()  local
216 	int rc = -1;  in cpio_mkgeneric_line()
218 	if (4 != sscanf(line, "%" str(PATH_MAX) "s %o %d %d", name, &mode, &uid, &gid)) {  in cpio_mkgeneric_line()
220 			line, generic_type_table[gt].type);  in cpio_mkgeneric_line()
224 	rc = cpio_mkgeneric(name, mode, uid, gid);  in cpio_mkgeneric_line()
229 static int cpio_mkdir_line(const char *line)  in cpio_mkdir_line()  argument
231 	return cpio_mkgeneric_line(line, GT_DIR);  in cpio_mkdir_line()
234 static int cpio_mkpipe_line(const char *line)  in cpio_mkpipe_line()  argument
236 	return cpio_mkgeneric_line(line, GT_PIPE);  in cpio_mkpipe_line()
239 static int cpio_mksock_line(const char *line)  in cpio_mksock_line()  argument
241 	return cpio_mkgeneric_line(line, GT_SOCK);  in cpio_mksock_line()
244 static int cpio_mknod(const char *name, unsigned int mode,  in cpio_mknod()  argument
255 	if (name[0] == '/')  in cpio_mknod()
256 		name++;  in cpio_mknod()
271 		(unsigned)strlen(name) + 1,/* namesize */  in cpio_mknod()
274 	push_rest(name);  in cpio_mknod()
278 static int cpio_mknod_line(const char *line)  in cpio_mknod_line()  argument
280 	char name[PATH_MAX + 1];  in cpio_mknod_line()  local
287 	int rc = -1;  in cpio_mknod_line()
289 	if (7 != sscanf(line, "%" str(PATH_MAX) "s %o %d %d %c %u %u",  in cpio_mknod_line()
290 			 name, &mode, &uid, &gid, &dev_type, &maj, &min)) {  in cpio_mknod_line()
291 		fprintf(stderr, "Unrecognized nod format '%s'", line);  in cpio_mknod_line()
294 	rc = cpio_mknod(name, mode, uid, gid, dev_type, maj, min);  in cpio_mknod_line()
308 			return -1;  in cpio_mkfile_csum()
313 		size -= this_read;  in cpio_mkfile_csum()
317 		return -1;  in cpio_mkfile_csum()
322 static int cpio_mkfile(const char *name, const char *location,  in cpio_mkfile()  argument
331 	int rc = -1;  in cpio_mkfile()
379 		if (name[0] == '/')  in cpio_mkfile()
380 			name++;  in cpio_mkfile()
381 		namesize = strlen(name) + 1;  in cpio_mkfile()
399 		push_string(name);  in cpio_mkfile()
418 			size -= this_read;  in cpio_mkfile()
422 		name += namesize;  in cpio_mkfile()
450 static int cpio_mkfile_line(const char *line)  in cpio_mkfile_line()  argument
452 	char name[PATH_MAX + 1];  in cpio_mkfile_line()  local
460 	int rc = -1;  in cpio_mkfile_line()
462 	if (5 > sscanf(line, "%" str(PATH_MAX) "s %" str(PATH_MAX)  in cpio_mkfile_line()
464 				name, location, &mode, &uid, &gid, &end)) {  in cpio_mkfile_line()
465 		fprintf(stderr, "Unrecognized file format '%s'", line);  in cpio_mkfile_line()
468 	if (end && isgraph(line[end])) {  in cpio_mkfile_line()
472 		dname = malloc(strlen(line));  in cpio_mkfile_line()
478 		dname_len = strlen(name) + 1;  in cpio_mkfile_line()
479 		memcpy(dname, name, dname_len);  in cpio_mkfile_line()
483 			if (sscanf(line + end, "%" str(PATH_MAX) "s %n",  in cpio_mkfile_line()
484 					name, &nend) < 1)  in cpio_mkfile_line()
486 			len = strlen(name) + 1;  in cpio_mkfile_line()
487 			memcpy(dname + dname_len, name, len);  in cpio_mkfile_line()
491 		} while (isgraph(line[end]));  in cpio_mkfile_line()
493 		dname = name;  in cpio_mkfile_line()
505 		"\t%s [-t <timestamp>] [-c] <cpio_list>\n"  in usage()
511 		"file <name> <location> <mode> <uid> <gid> [<hard links>]\n"  in usage()
512 		"dir <name> <mode> <uid> <gid>\n"  in usage()
513 		"nod <name> <mode> <uid> <gid> <dev_type> <maj> <min>\n"  in usage()
514 		"slink <name> <target> <mode> <uid> <gid>\n"  in usage()
515 		"pipe <name> <mode> <uid> <gid>\n"  in usage()
516 		"sock <name> <mode> <uid> <gid>\n"  in usage()
518 		"<name>       name of the file/dir/nod/etc in the archive\n"  in usage()
541 		"-c: calculate and store 32-bit checksums for file data.\n",  in usage()
575 	char line[LINE_SIZE];  in main()  local
586 		if (opt == -1)  in main()
609 	 * Timestamps after 2106-02-07 06:28:15 UTC have an ascii hex time_t  in main()
618 	if (argc - optind != 1) {  in main()
623 	if (!strcmp(filename, "-"))  in main()
632 	while (fgets(line, LINE_SIZE, cpio_list)) {  in main()
634 		size_t slen = strlen(line);  in main()
638 		if ('#' == *line) {  in main()
639 			/* comment - skip to next line */  in main()
643 		if (! (type = strtok(line, " \t"))) {  in main()
645 				"ERROR: incorrect format, could not locate file type line %d: '%s'\n",  in main()
646 				line_nr, line);  in main()
647 			ec = -1;  in main()
652 			/* a blank line */  in main()
657 			/* must be an empty line */  in main()
663 				"ERROR: incorrect format, newline required line %d: '%s'\n",  in main()
664 				line_nr, line);  in main()
665 			ec = -1;  in main()
670 			if (! strcmp(line, file_handler_table[type_idx].type)) {  in main()
673 					fprintf(stderr, " line %d\n", line_nr);  in main()
680 			fprintf(stderr, "unknown file type line %d: '%s'\n",  in main()
681 				line_nr, line);  in main()