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-rw-r--r--shlibs/blkid/bin/blkid.c633
1 files changed, 633 insertions, 0 deletions
diff --git a/shlibs/blkid/bin/blkid.c b/shlibs/blkid/bin/blkid.c
new file mode 100644
index 000000000..528e4a222
--- /dev/null
+++ b/shlibs/blkid/bin/blkid.c
@@ -0,0 +1,633 @@
+/*
+ * blkid.c - User command-line interface for libblkid
+ *
+ * Copyright (C) 2001 Andreas Dilger
+ *
+ * %Begin-Header%
+ * This file may be redistributed under the terms of the
+ * GNU Lesser General Public License.
+ * %End-Header%
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#ifdef HAVE_TERMIOS_H
+#include <termios.h>
+#endif
+#ifdef HAVE_TERMIO_H
+#include <termio.h>
+#endif
+#ifdef HAVE_SYS_IOCTL_H
+#include <sys/ioctl.h>
+#endif
+#ifdef HAVE_GETOPT_H
+#include <getopt.h>
+#else
+extern int getopt(int argc, char * const argv[], const char *optstring);
+extern char *optarg;
+extern int optind;
+#endif
+
+#define OUTPUT_VALUE_ONLY 0x0001
+#define OUTPUT_DEVICE_ONLY 0x0002
+#define OUTPUT_PRETTY_LIST 0x0004
+#define OUTPUT_UDEV_LIST 0x0008
+
+#include <blkid.h>
+
+const char *progname = "blkid";
+
+static void print_version(FILE *out)
+{
+ fprintf(out, "%s from %s (libblkid %s, %s)\n",
+ progname, PACKAGE_STRING, LIBBLKID_VERSION, LIBBLKID_DATE);
+}
+
+static void usage(int error)
+{
+ FILE *out = error ? stderr : stdout;
+
+ print_version(out);
+ fprintf(out,
+ "Usage:\n"
+ " %1$s -L <label> | -U <uuid>\n\n"
+ " %1$s [-c <file>] [-ghlLv] [-o format] [-s <tag>] \n"
+ " [-t <token>] [-w <file>] [dev ...]\n\n"
+ " %1$s -p [-O <offset>] [-S <size>] [-o format] <dev> [dev ...]\n\n"
+ "Options:\n"
+ " -c <file> cache file (default: /etc/blkid.tab, /dev/null = none)\n"
+ " -h print this usage message and exit\n"
+ " -g garbage collect the blkid cache\n"
+ " -o <format> output format; can be one of:\n"
+ " value, device, list, udev or full; (default: full)\n"
+ " -s <tag> show specified tag(s) (default show all tags)\n"
+ " -t <token> find device with a specific token (NAME=value pair)\n"
+ " -l lookup the the first device with arguments specified by -t\n"
+ " -L <label> convert LABEL to device name\n"
+ " -U <uuid> convert UUID to device name\n"
+ " -v print version and exit\n"
+ " -w <file> write cache to different file (/dev/null = no write)\n"
+ " <dev> specify device(s) to probe (default: all devices)\n\n"
+ "Low-level probing options:\n"
+ " -p switch to low-level mode (bypass cache)\n"
+ " -S <bytes> overwrite device size\n"
+ " -O <bytes> probe at the given offset\n"
+ " -u <list> filter by \"usage\" (e.g. -u filesystem,raid)\n"
+ "\n",
+ progname);
+
+ exit(error);
+}
+
+/*
+ * This function does "safe" printing. It will convert non-printable
+ * ASCII characters using '^' and M- notation.
+ */
+static void safe_print(const char *cp, int len)
+{
+ unsigned char ch;
+
+ if (len < 0)
+ len = strlen(cp);
+
+ while (len--) {
+ ch = *cp++;
+ if (ch > 128) {
+ fputs("M-", stdout);
+ ch -= 128;
+ }
+ if ((ch < 32) || (ch == 0x7f)) {
+ fputc('^', stdout);
+ ch ^= 0x40; /* ^@, ^A, ^B; ^? for DEL */
+ }
+ fputc(ch, stdout);
+ }
+}
+
+static int get_terminal_width(void)
+{
+#ifdef TIOCGSIZE
+ struct ttysize t_win;
+#endif
+#ifdef TIOCGWINSZ
+ struct winsize w_win;
+#endif
+ const char *cp;
+
+#ifdef TIOCGSIZE
+ if (ioctl (0, TIOCGSIZE, &t_win) == 0)
+ return (t_win.ts_cols);
+#endif
+#ifdef TIOCGWINSZ
+ if (ioctl (0, TIOCGWINSZ, &w_win) == 0)
+ return (w_win.ws_col);
+#endif
+ cp = getenv("COLUMNS");
+ if (cp)
+ return strtol(cp, NULL, 10);
+ return 80;
+}
+
+static int pretty_print_word(const char *str, int max_len,
+ int left_len, int overflow_nl)
+{
+ int len = strlen(str) + left_len;
+ int ret = 0;
+
+ fputs(str, stdout);
+ if (overflow_nl && len > max_len) {
+ fputc('\n', stdout);
+ len = 0;
+ } else if (len > max_len)
+ ret = len - max_len;
+ do
+ fputc(' ', stdout);
+ while (len++ < max_len);
+ return ret;
+}
+
+static void pretty_print_line(const char *device, const char *fs_type,
+ const char *label, const char *mtpt,
+ const char *uuid)
+{
+ static int device_len = 10, fs_type_len = 7;
+ static int label_len = 8, mtpt_len = 14;
+ static int term_width = -1;
+ int len, w;
+
+ if (term_width < 0)
+ term_width = get_terminal_width();
+
+ if (term_width > 80) {
+ term_width -= 80;
+ w = term_width / 10;
+ if (w > 8)
+ w = 8;
+ term_width -= 2*w;
+ label_len += w;
+ fs_type_len += w;
+ w = term_width/2;
+ device_len += w;
+ mtpt_len +=w;
+ }
+
+ len = pretty_print_word(device, device_len, 0, 1);
+ len = pretty_print_word(fs_type, fs_type_len, len, 0);
+ len = pretty_print_word(label, label_len, len, 0);
+ len = pretty_print_word(mtpt, mtpt_len, len, 0);
+ fputs(uuid, stdout);
+ fputc('\n', stdout);
+}
+
+static void pretty_print_dev(blkid_dev dev)
+{
+ fprintf(stderr, "pretty print not implemented yet\n");
+
+#ifdef NOT_IMPLEMENTED
+ blkid_tag_iterate iter;
+ const char *type, *value, *devname;
+ const char *uuid = "", *fs_type = "", *label = "";
+ char *cp;
+ int len, mount_flags;
+ char mtpt[80];
+ errcode_t retval;
+
+ if (dev == NULL) {
+ pretty_print_line("device", "fs_type", "label",
+ "mount point", "UUID");
+ for (len=get_terminal_width()-1; len > 0; len--)
+ fputc('-', stdout);
+ fputc('\n', stdout);
+ return;
+ }
+
+ devname = blkid_dev_devname(dev);
+ if (access(devname, F_OK))
+ return;
+
+ /* Get the uuid, label, type */
+ iter = blkid_tag_iterate_begin(dev);
+ while (blkid_tag_next(iter, &type, &value) == 0) {
+ if (!strcmp(type, "UUID"))
+ uuid = value;
+ if (!strcmp(type, "TYPE"))
+ fs_type = value;
+ if (!strcmp(type, "LABEL"))
+ label = value;
+ }
+ blkid_tag_iterate_end(iter);
+
+ /* Get the mount point */
+ mtpt[0] = 0;
+ retval = ext2fs_check_mount_point(devname, &mount_flags,
+ mtpt, sizeof(mtpt));
+ if (retval == 0) {
+ if (mount_flags & EXT2_MF_MOUNTED) {
+ if (!mtpt[0])
+ strcpy(mtpt, "(mounted, mtpt unknown)");
+ } else if (mount_flags & EXT2_MF_BUSY)
+ strcpy(mtpt, "(in use)");
+ else
+ strcpy(mtpt, "(not mounted)");
+ }
+
+ pretty_print_line(devname, fs_type, label, mtpt, uuid);
+#endif
+}
+
+static void print_udev_format(const char *name, const char *value, size_t sz)
+{
+ char enc[265], safe[256];
+
+ *safe = *enc = '\0';
+
+ if (!strcmp(name, "TYPE") || !strcmp(name, "VERSION")) {
+ blkid_encode_string(value, enc, sizeof(enc));
+ printf("ID_FS_%s=%s\n", name, enc);
+
+ } else if (!strcmp(name, "UUID") ||
+ !strcmp(name, "LABEL") ||
+ !strcmp(name, "UUID_SUB")) {
+
+ blkid_safe_string(value, safe, sizeof(safe));
+ printf("ID_FS_%s=%s\n", name, safe);
+
+ blkid_encode_string(value, enc, sizeof(enc));
+ printf("ID_FS_%s_ENC=%s\n", name, enc);
+ }
+ else
+ printf("ID_FS_%s=%s\n", name, value);
+}
+
+static void print_value(int output, int num, const char *devname,
+ const char *value, const char *name, size_t valsz)
+{
+ if (output & OUTPUT_VALUE_ONLY) {
+ fputs(value, stdout);
+ fputc('\n', stdout);
+
+ } else if (output & OUTPUT_UDEV_LIST) {
+ print_udev_format(name, value, valsz);
+
+ } else {
+ if (num == 1 && devname)
+ printf("%s: ", devname);
+ fputs(name, stdout);
+ fputs("=\"", stdout);
+ safe_print(value, valsz);
+ fputs("\" ", stdout);
+ }
+}
+
+static void print_tags(blkid_dev dev, char *show[], int numtag, int output)
+{
+ blkid_tag_iterate iter;
+ const char *type, *value, *devname;
+ int i, num = 1;
+
+ if (!dev)
+ return;
+
+ if (output & OUTPUT_PRETTY_LIST) {
+ pretty_print_dev(dev);
+ return;
+ }
+
+ devname = blkid_dev_devname(dev);
+
+ if (output & OUTPUT_DEVICE_ONLY) {
+ printf("%s\n", devname);
+ return;
+ }
+
+ iter = blkid_tag_iterate_begin(dev);
+ while (blkid_tag_next(iter, &type, &value) == 0) {
+ if (numtag && show) {
+ for (i=0; i < numtag; i++)
+ if (!strcmp(type, show[i]))
+ break;
+ if (i >= numtag)
+ continue;
+ }
+ print_value(output, num++, devname, value, type, strlen(value));
+ }
+ blkid_tag_iterate_end(iter);
+
+ if (num > 1 && !(output & (OUTPUT_VALUE_ONLY | OUTPUT_UDEV_LIST)))
+ printf("\n");
+}
+
+static int lowprobe_device(blkid_probe pr, const char *devname, int output,
+ blkid_loff_t offset, blkid_loff_t size)
+{
+ const char *data;
+ const char *name;
+ int nvals = 0, n;
+ size_t len;
+ int fd;
+ int rc = 0;
+
+ fd = open(devname, O_RDONLY);
+ if (fd < 0)
+ return 2;
+
+ if (blkid_probe_set_device(pr, fd, offset, size))
+ goto done;
+ rc = blkid_do_safeprobe(pr);
+ if (rc)
+ goto done;
+
+ nvals = blkid_probe_numof_values(pr);
+
+ if (output & OUTPUT_DEVICE_ONLY) {
+ printf("%s\n", devname);
+ goto done;
+ }
+
+ for (n = 0; n < nvals; n++) {
+ if (blkid_probe_get_value(pr, n, &name, &data, &len))
+ continue;
+
+ len = strnlen((char *) data, len);
+ print_value(output, n + 1, devname, (char *) data, name, len);
+ }
+
+ if (nvals > 1 && !(output & (OUTPUT_VALUE_ONLY | OUTPUT_UDEV_LIST)))
+ printf("\n");
+done:
+ if (rc == -2)
+ fprintf(stderr, "%s: ambivalent result "
+ "(probably more filesystems on the device)\n",
+ devname);
+ close(fd);
+ return !nvals ? 2 : 0;
+}
+
+/* converts comma separated list to BLKID_USAGE_* mask */
+static int list_to_usage(const char *list, int *flag)
+{
+ int mask = 0;
+ const char *word, *p = list;
+
+ if (p && strncmp(p, "no", 2) == 0) {
+ *flag = BLKID_FLTR_NOTIN;
+ p += 2;
+ }
+
+ for (word = p; p && *p; p++) {
+ if (*p == ',' || *(p + 1) == '\0') {
+ if (!strncmp(word, "filesystem", 10))
+ mask |= BLKID_USAGE_FILESYSTEM;
+ else if (!strncmp(word, "raid", 4))
+ mask |= BLKID_USAGE_RAID;
+ else if (!strncmp(word, "crypto", 6))
+ mask |= BLKID_USAGE_CRYPTO;
+ else if (!strncmp(word, "other", 5))
+ mask |= BLKID_USAGE_OTHER;
+ else {
+ fprintf(stderr, "unknown usage keyword '%*s'\n",
+ (int) (p - word), word);
+ exit(4);
+ }
+ word = p + 1;
+ }
+ }
+ return mask;
+}
+
+int main(int argc, char **argv)
+{
+ blkid_cache cache = NULL;
+ char *devices[128] = { NULL, };
+ char *show[128] = { NULL, };
+ char *search_type = NULL, *search_value = NULL;
+ char *read = NULL;
+ char *write = NULL;
+ int fltr_usage = 0;
+ int fltr_flag = BLKID_FLTR_ONLYIN;
+ unsigned int numdev = 0, numtag = 0;
+ int version = 0;
+ int err = 4;
+ unsigned int i;
+ int output_format = 0;
+ int lookup = 0, gc = 0, lowprobe = 0, eval = 0;
+ int c;
+ blkid_loff_t offset = 0, size = 0;
+
+ while ((c = getopt (argc, argv, "c:f:ghlL:o:O:ps:S:t:u:U:w:v")) != EOF)
+ switch (c) {
+ case 'c':
+ if (optarg && !*optarg)
+ read = NULL;
+ else
+ read = optarg;
+ if (!write)
+ write = read;
+ break;
+ case 'L':
+ eval++;
+ search_value = strdup(optarg);
+ search_type = strdup("LABEL");
+ break;
+ case 'u':
+ fltr_usage = list_to_usage(optarg, &fltr_flag);
+ break;
+ case 'U':
+ eval++;
+ search_value = strdup(optarg);
+ search_type = strdup("UUID");
+ break;
+ case 'l':
+ lookup++;
+ break;
+ case 'g':
+ gc = 1;
+ break;
+ case 'o':
+ if (!strcmp(optarg, "value"))
+ output_format = OUTPUT_VALUE_ONLY;
+ else if (!strcmp(optarg, "device"))
+ output_format = OUTPUT_DEVICE_ONLY;
+ else if (!strcmp(optarg, "list"))
+ output_format = OUTPUT_PRETTY_LIST;
+ else if (!strcmp(optarg, "udev"))
+ output_format = OUTPUT_UDEV_LIST;
+ else if (!strcmp(optarg, "full"))
+ output_format = 0;
+ else {
+ fprintf(stderr, "Invalid output format %s. "
+ "Choose from value,\n\t"
+ "device, list, udev or full\n", optarg);
+ exit(4);
+ }
+ break;
+ case 'O':
+ offset = strtoll(optarg, NULL, 10);
+ break;
+ case 'p':
+ lowprobe++;
+ break;
+ case 's':
+ if (numtag >= sizeof(show) / sizeof(*show)) {
+ fprintf(stderr, "Too many tags specified\n");
+ usage(err);
+ }
+ show[numtag++] = optarg;
+ break;
+ case 'S':
+ size = strtoll(optarg, NULL, 10);
+ break;
+ case 't':
+ if (search_type) {
+ fprintf(stderr, "Can only search for "
+ "one NAME=value pair\n");
+ usage(err);
+ }
+ if (blkid_parse_tag_string(optarg,
+ &search_type,
+ &search_value)) {
+ fprintf(stderr, "-t needs NAME=value pair\n");
+ usage(err);
+ }
+ break;
+ case 'v':
+ version = 1;
+ break;
+ case 'w':
+ if (optarg && !*optarg)
+ write = NULL;
+ else
+ write = optarg;
+ break;
+ case 'h':
+ err = 0;
+ default:
+ usage(err);
+ }
+
+ while (optind < argc)
+ devices[numdev++] = argv[optind++];
+
+ if (version) {
+ print_version(stdout);
+ goto exit;
+ }
+
+ /* convert LABEL/UUID lookup to evaluate request */
+ if (lookup && output_format == OUTPUT_DEVICE_ONLY && search_type &&
+ (!strcmp(search_type, "LABEL") || !strcmp(search_type, "UUID"))) {
+ eval++;
+ lookup = 0;
+ }
+
+ if (!lowprobe && !eval && blkid_get_cache(&cache, read) < 0)
+ goto exit;
+
+ if (gc) {
+ blkid_gc_cache(cache);
+ err = 0;
+ goto exit;
+ }
+ err = 2;
+
+ if (output_format & OUTPUT_PRETTY_LIST)
+ pretty_print_dev(NULL);
+
+ if (lowprobe) {
+ /*
+ * Low-level API
+ */
+ blkid_probe pr;
+
+ if (!numdev) {
+ fprintf(stderr, "The low-probe option requires a device\n");
+ exit(4);
+ }
+ pr = blkid_new_probe();
+ if (!pr)
+ goto exit;
+ blkid_probe_set_request(pr,
+ BLKID_PROBREQ_LABEL | BLKID_PROBREQ_UUID |
+ BLKID_PROBREQ_TYPE | BLKID_PROBREQ_SECTYPE |
+ BLKID_PROBREQ_USAGE | BLKID_PROBREQ_VERSION);
+ if (fltr_usage &&
+ blkid_probe_filter_usage(pr, fltr_flag, fltr_usage))
+ goto exit;
+
+ for (i = 0; i < numdev; i++)
+ err = lowprobe_device(pr, devices[i],
+ output_format, offset, size);
+ blkid_free_probe(pr);
+ } else if (eval) {
+ /*
+ * Evaluate API
+ */
+ char *res = blkid_evaluate_tag(search_type, search_value, NULL);
+ if (res) {
+ err = 0;
+ printf("%s\n", res);
+ }
+ } else if (lookup) {
+ /*
+ * Classic (cache based) API
+ */
+ blkid_dev dev;
+
+ if (!search_type) {
+ fprintf(stderr, "The lookup option requires a "
+ "search type specified using -t\n");
+ exit(4);
+ }
+ /* Load any additional devices not in the cache */
+ for (i = 0; i < numdev; i++)
+ blkid_get_dev(cache, devices[i], BLKID_DEV_NORMAL);
+
+ if ((dev = blkid_find_dev_with_tag(cache, search_type,
+ search_value))) {
+ print_tags(dev, show, numtag, output_format);
+ err = 0;
+ }
+ /* If we didn't specify a single device, show all available devices */
+ } else if (!numdev) {
+ blkid_dev_iterate iter;
+ blkid_dev dev;
+
+ blkid_probe_all(cache);
+
+ iter = blkid_dev_iterate_begin(cache);
+ blkid_dev_set_search(iter, search_type, search_value);
+ while (blkid_dev_next(iter, &dev) == 0) {
+ dev = blkid_verify(cache, dev);
+ if (!dev)
+ continue;
+ print_tags(dev, show, numtag, output_format);
+ err = 0;
+ }
+ blkid_dev_iterate_end(iter);
+ /* Add all specified devices to cache (optionally display tags) */
+ } else for (i = 0; i < numdev; i++) {
+ blkid_dev dev = blkid_get_dev(cache, devices[i],
+ BLKID_DEV_NORMAL);
+
+ if (dev) {
+ if (search_type &&
+ !blkid_dev_has_tag(dev, search_type,
+ search_value))
+ continue;
+ print_tags(dev, show, numtag, output_format);
+ err = 0;
+ }
+ }
+
+exit:
+ free(search_type);
+ free(search_value);
+ if (!lowprobe && !eval)
+ blkid_put_cache(cache);
+ return err;
+}
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2024-07-22 14:34:14 +0200