diff options
Diffstat (limited to 'e2fsprogs/blkid/dev.c')
| -rw-r--r-- | e2fsprogs/blkid/dev.c | 214 |
1 files changed, 0 insertions, 214 deletions
diff --git a/e2fsprogs/blkid/dev.c b/e2fsprogs/blkid/dev.c deleted file mode 100644 index eddbd02..0000000 --- a/e2fsprogs/blkid/dev.c +++ /dev/null @@ -1,214 +0,0 @@ -/* vi: set sw=4 ts=4: */ -/* - * dev.c - allocation/initialization/free routines for dev - * - * Copyright (C) 2001 Andreas Dilger - * Copyright (C) 2003 Theodore Ts'o - * - * %Begin-Header% - * This file may be redistributed under the terms of the - * GNU Lesser General Public License. - * %End-Header% - */ - -#include <stdlib.h> -#include <string.h> - -#include "blkidP.h" - -blkid_dev blkid_new_dev(void) -{ - blkid_dev dev; - - if (!(dev = (blkid_dev) calloc(1, sizeof(struct blkid_struct_dev)))) - return NULL; - - INIT_LIST_HEAD(&dev->bid_devs); - INIT_LIST_HEAD(&dev->bid_tags); - - return dev; -} - -void blkid_free_dev(blkid_dev dev) -{ - if (!dev) - return; - - DBG(DEBUG_DEV, - printf(" freeing dev %s (%s)\n", dev->bid_name, dev->bid_type)); - DBG(DEBUG_DEV, blkid_debug_dump_dev(dev)); - - list_del(&dev->bid_devs); - while (!list_empty(&dev->bid_tags)) { - blkid_tag tag = list_entry(dev->bid_tags.next, - struct blkid_struct_tag, - bit_tags); - blkid_free_tag(tag); - } - if (dev->bid_name) - free(dev->bid_name); - free(dev); -} - -/* - * Given a blkid device, return its name - */ -const char *blkid_dev_devname(blkid_dev dev) -{ - return dev->bid_name; -} - -#ifdef CONFIG_BLKID_DEBUG -void blkid_debug_dump_dev(blkid_dev dev) -{ - struct list_head *p; - - if (!dev) { - printf(" dev: NULL\n"); - return; - } - - printf(" dev: name = %s\n", dev->bid_name); - printf(" dev: DEVNO=\"0x%0llx\"\n", dev->bid_devno); - printf(" dev: TIME=\"%lu\"\n", dev->bid_time); - printf(" dev: PRI=\"%d\"\n", dev->bid_pri); - printf(" dev: flags = 0x%08X\n", dev->bid_flags); - - list_for_each(p, &dev->bid_tags) { - blkid_tag tag = list_entry(p, struct blkid_struct_tag, bit_tags); - if (tag) - printf(" tag: %s=\"%s\"\n", tag->bit_name, - tag->bit_val); - else - printf(" tag: NULL\n"); - } - puts(""); -} -#endif - -/* - * dev iteration routines for the public libblkid interface. - * - * These routines do not expose the list.h implementation, which are a - * contamination of the namespace, and which force us to reveal far, far - * too much of our internal implemenation. I'm not convinced I want - * to keep list.h in the long term, anyway. It's fine for kernel - * programming, but performance is not the #1 priority for this - * library, and I really don't like the tradeoff of type-safety for - * performance for this application. [tytso:20030125.2007EST] - */ - -/* - * This series of functions iterate over all devices in a blkid cache - */ -#define DEV_ITERATE_MAGIC 0x01a5284c - -struct blkid_struct_dev_iterate { - int magic; - blkid_cache cache; - struct list_head *p; -}; - -blkid_dev_iterate blkid_dev_iterate_begin(blkid_cache cache) -{ - blkid_dev_iterate iter; - - iter = xmalloc(sizeof(struct blkid_struct_dev_iterate)); - iter->magic = DEV_ITERATE_MAGIC; - iter->cache = cache; - iter->p = cache->bic_devs.next; - return iter; -} - -/* - * Return 0 on success, -1 on error - */ -extern int blkid_dev_next(blkid_dev_iterate iter, - blkid_dev *dev) -{ - *dev = 0; - if (!iter || iter->magic != DEV_ITERATE_MAGIC || - iter->p == &iter->cache->bic_devs) - return -1; - *dev = list_entry(iter->p, struct blkid_struct_dev, bid_devs); - iter->p = iter->p->next; - return 0; -} - -void blkid_dev_iterate_end(blkid_dev_iterate iter) -{ - if (!iter || iter->magic != DEV_ITERATE_MAGIC) - return; - iter->magic = 0; - free(iter); -} - -#ifdef TEST_PROGRAM -#ifdef HAVE_GETOPT_H -#include <getopt.h> -#else -extern char *optarg; -extern int optind; -#endif - -void usage(char *prog) -{ - fprintf(stderr, "Usage: %s [-f blkid_file] [-m debug_mask]\n", prog); - fprintf(stderr, "\tList all devices and exit\n", prog); - exit(1); -} - -int main(int argc, char **argv) -{ - blkid_dev_iterate iter; - blkid_cache cache = NULL; - blkid_dev dev; - int c, ret; - char *tmp; - char *file = NULL; - char *search_type = NULL; - char *search_value = NULL; - - while ((c = getopt (argc, argv, "m:f:")) != EOF) - switch (c) { - case 'f': - file = optarg; - break; - case 'm': - blkid_debug_mask = strtoul (optarg, &tmp, 0); - if (*tmp) { - fprintf(stderr, "Invalid debug mask: %d\n", - optarg); - exit(1); - } - break; - case '?': - usage(argv[0]); - } - if (argc >= optind+2) { - search_type = argv[optind]; - search_value = argv[optind+1]; - optind += 2; - } - if (argc != optind) - usage(argv[0]); - - if ((ret = blkid_get_cache(&cache, file)) != 0) { - fprintf(stderr, "%s: error creating cache (%d)\n", - argv[0], ret); - exit(1); - } - - iter = blkid_dev_iterate_begin(cache); - if (search_type) - blkid_dev_set_search(iter, search_type, search_value); - while (blkid_dev_next(iter, &dev) == 0) { - printf("Device: %s\n", blkid_dev_devname(dev)); - } - blkid_dev_iterate_end(iter); - - - blkid_put_cache(cache); - return 0; -} -#endif |