mirror of https://github.com/pygos/pkg-utils.git
104 lines
2.7 KiB
C
104 lines
2.7 KiB
C
#include "dump.h"
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static const struct option long_opts[] = {
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{ "format", required_argument, NULL, 'f' },
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{ "root", required_argument, NULL, 'r' },
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{ NULL, 0, NULL, 0 },
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};
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static const char *short_opts = "f:r:";
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static int cmd_dump(int argc, char **argv)
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{
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TOC_FORMAT format = TOC_FORMAT_PRETTY;
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image_entry_t *list = NULL;
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const char *root = NULL;
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int ret = EXIT_FAILURE;
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pkg_reader_t *rd;
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int i;
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for (;;) {
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i = getopt_long(argc, argv, short_opts, long_opts, NULL);
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if (i == -1)
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break;
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switch (i) {
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case 'f':
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if (strcmp(optarg, "sqfs") == 0) {
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format = TOC_FORMAT_SQFS;
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} else if (strcmp(optarg, "initrd") == 0) {
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format = TOC_FORMAT_INITRD;
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} else {
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fprintf(stderr, "unknown format '%s'\n",
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optarg);
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tell_read_help(argv[0]);
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return EXIT_FAILURE;
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}
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break;
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case 'r':
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root = optarg;
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break;
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default:
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tell_read_help(argv[0]);
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return EXIT_FAILURE;
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}
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}
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if (optind >= argc) {
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fputs("missing argument: package file\n", stderr);
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tell_read_help(argv[0]);
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return EXIT_FAILURE;
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}
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rd = pkg_reader_open(argv[optind++]);
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if (rd == NULL)
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return EXIT_FAILURE;
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if (optind < argc)
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fputs("warning: ignoring extra arguments\n", stderr);
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list = image_entry_list_from_package(rd);
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if (list == NULL)
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goto out;
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if (dump_toc(list, root, format))
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goto out;
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ret = EXIT_SUCCESS;
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out:
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if (list != NULL)
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image_entry_free_list(list);
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pkg_reader_close(rd);
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return ret;
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}
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static command_t dump = {
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.cmd = "dump",
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.usage = "[OPTIONS...] <pkgfile>",
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.s_desc = "read dump all information from a package file",
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.l_desc =
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"Parse a package file and dump information it contains, such as the list of\n"
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"files, et cetera.\n"
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"\n"
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"Possible options:\n"
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" --format, -f <format> Specify what format to use for printing the table\n"
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" of contents. Default is a pretty printed, human\n"
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" readable version.\n"
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"\n"
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" If \"sqfs\" is specified, a squashfs pseudo file\n"
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" is genareated for setting permissions bits and\n"
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" ownership appropriately.\n"
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"\n"
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" If \"initrd\" is specified, a format appropriate\n"
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" for Linux gen_init_cpio is produced.\n"
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"\n"
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" --root, -r <path> If a format is used that requires absoulute input\n"
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" paths (e.g. initrd), prefix all file paths with\n"
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" this. Can be used, for instance to unpack a\n"
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" package to a staging directory and generate a\n"
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" a listing for Linux CONFIG_INITRAMFS_SOURCE.\n",
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.run_cmd = cmd_dump,
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};
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REGISTER_COMMAND(dump)
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