1 // SPDX-License-Identifier: GPL-2.0
23 #define xstr(s) #s  argument
24 #define str(s) xstr(s)  argument
71 static void push_hdr(const char *s)  in push_hdr()  argument
73 	fputs(s, stdout);  in push_hdr()
79 	char s[256];  in cpio_trailer()  local
82 	sprintf(s, "%s%08X%08X%08lX%08lX%08X%08lX"  in cpio_trailer()
86 		0,			/* mode */  in cpio_trailer()
98 	push_hdr(s);  in cpio_trailer()
108 			 unsigned int mode, uid_t uid, gid_t gid)  in cpio_mkslink()  argument
110 	char s[256];  in cpio_mkslink()  local
114 	sprintf(s,"%s%08X%08X%08lX%08lX%08X%08lX"  in cpio_mkslink()
118 		S_IFLNK | mode,		/* mode */  in cpio_mkslink()
130 	push_hdr(s);  in cpio_mkslink()
142 	unsigned int mode;  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
159 	char s[256];  in cpio_mkgeneric()  local
163 	sprintf(s,"%s%08X%08X%08lX%08lX%08X%08lX"  in cpio_mkgeneric()
167 		mode,			/* mode */  in cpio_mkgeneric()
179 	push_hdr(s);  in cpio_mkgeneric()
192 	mode_t mode;  member
198 		.mode = S_IFDIR
202 		.mode = S_IFIFO
206 		.mode = S_IFSOCK
213 	unsigned int mode;  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()
219 		fprintf(stderr, "Unrecognized %s format '%s'",  in cpio_mkgeneric_line()
223 	mode |= generic_type_table[gt].mode;  in cpio_mkgeneric_line()
224 	rc = cpio_mkgeneric(name, mode, uid, gid);  in cpio_mkgeneric_line()
244 static int cpio_mknod(const char *name, unsigned int mode,  in cpio_mknod()  argument
248 	char s[256];  in cpio_mknod()  local
251 		mode |= S_IFBLK;  in cpio_mknod()
253 		mode |= S_IFCHR;  in cpio_mknod()
257 	sprintf(s,"%s%08X%08X%08lX%08lX%08X%08lX"  in cpio_mknod()
261 		mode,			/* mode */  in cpio_mknod()
273 	push_hdr(s);  in cpio_mknod()
281 	unsigned int mode;  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()
323 			unsigned int mode, uid_t uid, gid_t gid,  in cpio_mkfile()  argument
326 	char s[256];  in cpio_mkfile()  local
331 	int rc = -1;  in cpio_mkfile()
336 	mode |= S_IFREG;  in cpio_mkfile()
340 		fprintf (stderr, "File %s could not be opened for reading\n", location);  in cpio_mkfile()
346 		fprintf(stderr, "File %s could not be stat()'ed\n", location);  in cpio_mkfile()
351 		fprintf(stderr, "%s: Timestamp exceeds maximum cpio timestamp, clipping.\n",  in cpio_mkfile()
357 		fprintf(stderr, "%s: Size exceeds maximum cpio file size\n",  in cpio_mkfile()
363 		fprintf(stderr, "Failed to checksum file %s\n", location);  in cpio_mkfile()
376 		sprintf(s,"%s%08X%08X%08lX%08lX%08X%08lX"  in cpio_mkfile()
380 			mode,			/* mode */  in cpio_mkfile()
392 		push_hdr(s);  in cpio_mkfile()
403 				fprintf(stderr, "Can not read %s file\n", location);  in cpio_mkfile()
412 			size -= this_read;  in cpio_mkfile()
436 		snprintf(expanded, sizeof expanded, "%s%s%s",  in cpio_replace_env()
449 	unsigned int mode;  in cpio_mkfile_line()  local
454 	int rc = -1;  in cpio_mkfile_line()
456 	if (5 > sscanf(line, "%" str(PATH_MAX) "s %" str(PATH_MAX)  in cpio_mkfile_line()
457 				"s %o %d %d %n",  in cpio_mkfile_line()
458 				name, location, &mode, &uid, &gid, &end)) {  in cpio_mkfile_line()
459 		fprintf(stderr, "Unrecognized file format '%s'", line);  in cpio_mkfile_line()
477 			if (sscanf(line + end, "%" str(PATH_MAX) "s %n",  in cpio_mkfile_line()
490 	                 mode, uid, gid, nlinks);  in cpio_mkfile_line()
499 		"\t%s [-t <timestamp>] [-c] <cpio_list>\n"  in usage()
505 		"file <name> <location> <mode> <uid> <gid> [<hard links>]\n"  in usage()
506 		"dir <name> <mode> <uid> <gid>\n"  in usage()
507 		"nod <name> <mode> <uid> <gid> <dev_type> <maj> <min>\n"  in usage()
508 		"slink <name> <target> <mode> <uid> <gid>\n"  in usage()
509 		"pipe <name> <mode> <uid> <gid>\n"  in usage()
510 		"sock <name> <mode> <uid> <gid>\n"  in usage()
516 		"<mode>       mode/permissions of the file\n"  in usage()
535 		"-c: calculate and store 32-bit checksums for file data.\n",  in usage()
580 		if (opt == -1)  in main()
586 				fprintf(stderr, "Invalid timestamp: %s\n",  in main()
603 	 * Timestamps after 2106-02-07 06:28:15 UTC have an ascii hex time_t  in main()
612 	if (argc - optind != 1) {  in main()
617 	if (!strcmp(filename, "-"))  in main()
620 		fprintf(stderr, "ERROR: unable to open '%s': %s\n\n",  in main()
633 			/* comment - skip to next line */  in main()
639 				"ERROR: incorrect format, could not locate file type line %d: '%s'\n",  in main()
641 			ec = -1;  in main()
657 				"ERROR: incorrect format, newline required line %d: '%s'\n",  in main()
659 			ec = -1;  in main()
674 			fprintf(stderr, "unknown file type line %d: '%s'\n",  in main()