fstools: add btrfs support

[project/fstools.git] / snapshot.c

diff --git a/snapshot.c b/snapshot.c
index fe1e537..bb44cd3 100644 (file)
--- a/snapshot.c
+++ b/snapshot.c
@@ -30,6 +30,7 @@
 #include <libubox/list.h>
 #include <libubox/blob.h>
 #include <libubox/md5.h>
+#include <libubox/ulog.h>
 
 #include "libfstools/libfstools.h"
 #include "libfstools/volume.h"
@@ -44,6 +45,7 @@ config_write(int argc, char **argv)
        if (!v)
                return -1;
 
+       volume_init(v);
        ret = volatile_write(v, 0);
        if (!ret)
                ret = sentinel_write(v, 0);
@@ -62,6 +64,7 @@ config_read(int argc, char **argv)
        if (!v)
                return -1;
 
+       volume_init(v);
        block = config_find(v, &conf, &sentinel);
        next = snapshot_next_free(v, &seq);
        if (is_config(&conf) && conf.seq == seq)
@@ -73,7 +76,7 @@ config_read(int argc, char **argv)
        ret = snapshot_read_file(v, block, "/tmp/config.tar.gz", CONF);
 
        if (ret < 1)
-               fprintf(stderr, "failed to read /tmp/config.tar.gz\n");
+               ULOG_ERR("failed to read /tmp/config.tar.gz\n");
 
        return ret;
 }
@@ -88,15 +91,16 @@ snapshot_write(int argc, char **argv)
        if (!v)
                return -1;
 
+       volume_init(v);
        block = snapshot_next_free(v, &seq);
        if (block < 0)
                block = 0;
 
        ret = snapshot_write_file(v, block, "/tmp/snapshot.tar.gz", seq + 1, DATA);
        if (ret)
-               fprintf(stderr, "failed to write /tmp/snapshot.tar.gz\n");
+               ULOG_ERR("failed to write /tmp/snapshot.tar.gz\n");
        else
-               fprintf(stderr, "wrote /tmp/snapshot.tar.gz\n");
+               ULOG_INFO("wrote /tmp/snapshot.tar.gz\n");
 
        return ret;
 }
@@ -109,20 +113,22 @@ snapshot_mark(int argc, char **argv)
        size_t sz;
        int fd;
 
-       fprintf(stderr, "This will remove all snapshot data stored on the system. Are you sure? [N/y]\n");
+       ULOG_WARN("This will remove all snapshot data stored on the system. Are you sure? [N/y]\n");
        if (getchar() != 'y')
                return -1;
 
        v = volume_find("rootfs_data");
        if (!v) {
-               fprintf(stderr, "no rootfs_data was found\n");
+               ULOG_ERR("MTD partition 'rootfs_data' not found\n");
                return -1;
        }
 
+       volume_init(v);
+
        fd = open(v->blk, O_WRONLY);
-       fprintf(stderr, "%s - marking with 0x%08x\n", v->blk, owrt);
+       ULOG_INFO("%s - marking with 0x%08x\n", v->blk, owrt);
        if (fd < 0) {
-               fprintf(stderr, "opening %s failed\n", v->blk);
+               ULOG_ERR("opening %s failed\n", v->blk);
                return -1;
        }
 
@@ -130,7 +136,7 @@ snapshot_mark(int argc, char **argv)
        close(fd);
 
        if (sz != 1) {
-               fprintf(stderr, "writing %s failed: %s\n", v->blk, strerror(errno));
+               ULOG_ERR("writing %s failed: %s\n", v->blk, strerror(errno));
                return -1;
        }
 
@@ -147,11 +153,12 @@ snapshot_read(int argc, char **argv)
        if (!v)
                return -1;
 
+       volume_init(v);
        if (argc > 2) {
                block = atoi(argv[2]);
                if (block >= (v->size / v->block_size)) {
-                       fprintf(stderr, "invalid block %d > %" PRIu64 "\n",
-                               block, (uint64_t) v->size / v->block_size);
+                       ULOG_ERR("invalid block %d > %" PRIu64 "\n",
+                                block, (uint64_t) v->size / v->block_size);
                        goto out;
                }
                snprintf(file, sizeof(file), "/tmp/snapshot/block%d.tar.gz", block);
@@ -179,11 +186,12 @@ snapshot_info(void)
        if (!v)
                return -1;
 
-       fprintf(stderr, "sectors:\t%" PRIu64 ", block_size:\t%dK\n",
-               (uint64_t) v->size / v->block_size, v->block_size / 1024);
+       volume_init(v);
+       ULOG_INFO("sectors:\t%" PRIu64 ", block_size:\t%dK\n",
+                 (uint64_t) v->size / v->block_size, v->block_size / 1024);
        do {
                if (volume_read(v, &hdr, block * v->block_size, sizeof(struct file_header))) {
-                       fprintf(stderr, "scanning for next free block failed\n");
+                       ULOG_ERR("scanning for next free block failed\n");
                        return 0;
                }
 
@@ -193,16 +201,16 @@ snapshot_info(void)
                        break;
 
                if (hdr.type == DATA)
-                       fprintf(stderr, "block %d:\tsnapshot entry, size: %d, sectors: %d, sequence: %d\n", block,  hdr.length, pad_file_size(v, hdr.length) / v->block_size, hdr.seq);
+                       ULOG_INFO("block %d:\tsnapshot entry, size: %d, sectors: %d, sequence: %d\n", block,  hdr.length, pad_file_size(v, hdr.length) / v->block_size, hdr.seq);
                else if (hdr.type == CONF)
-                       fprintf(stderr, "block %d:\tvolatile entry, size: %d, sectors: %d, sequence: %d\n", block,  hdr.length, pad_file_size(v, hdr.length) / v->block_size, hdr.seq);
+                       ULOG_INFO("block %d:\tvolatile entry, size: %d, sectors: %d, sequence: %d\n", block,  hdr.length, pad_file_size(v, hdr.length) / v->block_size, hdr.seq);
 
                if (hdr.type == DATA && !valid_file_size(hdr.length))
                        block += pad_file_size(v, hdr.length) / v->block_size;
        } while (hdr.type == DATA);
        block = config_find(v, &conf, &hdr);
        if (block > 0)
-               fprintf(stderr, "block %d:\tsentinel entry, size: %d, sectors: %d, sequence: %d\n", block, hdr.length, pad_file_size(v, hdr.length) / v->block_size, hdr.seq);
+               ULOG_INFO("block %d:\tsentinel entry, size: %d, sectors: %d, sequence: %d\n", block, hdr.length, pad_file_size(v, hdr.length) / v->block_size, hdr.seq);
 
        return 0;
 }