* %End-Header%
*/
+#include "config.h"
#include <stdlib.h>
#include <string.h>
+#include <stdint.h>
#include "blkidP.h"
-#ifdef DEBUG_DEV
-#include <stdio.h>
-#define DBG(x) x
-#else
-#define DBG(x)
-#endif
-
blkid_dev blkid_new_dev(void)
{
blkid_dev dev;
if (!dev)
return;
- DBG(printf(" freeing dev %s (%s)\n", dev->bid_name, dev->bid_type));
- DEB_DUMP_DEV(dev);
+ DBG(DEBUG_DEV,
+ printf(" freeing dev %s (%s)\n", dev->bid_name, dev->bid_type ?
+ dev->bid_type : "(null)"));
+ DBG(DEBUG_DEV, blkid_debug_dump_dev(dev));
list_del(&dev->bid_devs);
while (!list_empty(&dev->bid_tags)) {
bit_tags);
blkid_free_tag(tag);
}
- if (dev->bid_name)
- free(dev->bid_name);
+ free(dev->bid_name);
free(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", (long long)dev->bid_devno);
+ printf(" dev: TIME=\"%ld\"\n", (long)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");
+ }
+ printf("\n");
+}
+#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
+ * too much of our internal implementation. 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
* 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;
+ char *search_type;
+ char *search_value;
struct list_head *p;
};
iter->magic = DEV_ITERATE_MAGIC;
iter->cache = cache;
iter->p = cache->bic_devs.next;
+ iter->search_type = 0;
+ iter->search_value = 0;
}
return (iter);
}
+extern int blkid_dev_set_search(blkid_dev_iterate iter,
+ char *search_type, char *search_value)
+{
+ char *new_type, *new_value;
+
+ if (!iter || iter->magic != DEV_ITERATE_MAGIC || !search_type ||
+ !search_value)
+ return -1;
+ new_type = malloc(strlen(search_type)+1);
+ new_value = malloc(strlen(search_value)+1);
+ if (!new_type || !new_value) {
+ free(new_type);
+ free(new_value);
+ return -1;
+ }
+ strcpy(new_type, search_type);
+ strcpy(new_value, search_value);
+ free(iter->search_type);
+ free(iter->search_value);
+ iter->search_type = new_type;
+ iter->search_value = new_value;
+ return 0;
+}
+
/*
* Return 0 on success, -1 on error
*/
extern int blkid_dev_next(blkid_dev_iterate iter,
- blkid_dev *dev)
+ blkid_dev *ret_dev)
{
- *dev = 0;
- if (!iter || iter->magic != DEV_ITERATE_MAGIC ||
- iter->p == &iter->cache->bic_devs)
+ blkid_dev dev;
+
+ *ret_dev = 0;
+ if (!iter || iter->magic != DEV_ITERATE_MAGIC)
return -1;
- *dev = list_entry(iter->p, struct blkid_struct_dev, bid_devs);
- iter->p = iter->p->next;
- return 0;
+ while (iter->p != &iter->cache->bic_devs) {
+ dev = list_entry(iter->p, struct blkid_struct_dev, bid_devs);
+ iter->p = iter->p->next;
+ if (iter->search_type &&
+ !blkid_dev_has_tag(dev, iter->search_type,
+ iter->search_value))
+ continue;
+ *ret_dev = dev;
+ return 0;
+ }
+ return -1;
}
extern void blkid_dev_iterate_end(blkid_dev_iterate iter)
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");
+ 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: %s\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
git://git.whamcloud.com / tools / e2fsprogs.git / blobdiff