]> Git Repo - qemu.git/blobdiff - qemu-img.c
tests/tco: Make test independent of global_qtest
[qemu.git] / qemu-img.c
index b12f4cd19b0a938dba9f5d8b3bfde5d52ab7bfae..e6ad5978e0ce186e709365aeb512ae4383340f64 100644 (file)
@@ -85,13 +85,11 @@ static void QEMU_NORETURN GCC_FMT_ATTR(1, 2) error_exit(const char *fmt, ...)
 {
     va_list ap;
 
-    error_printf("qemu-img: ");
-
     va_start(ap, fmt);
-    error_vprintf(fmt, ap);
+    error_vreport(fmt, ap);
     va_end(ap);
 
-    error_printf("\nTry 'qemu-img --help' for more information\n");
+    error_printf("Try 'qemu-img --help' for more information\n");
     exit(EXIT_FAILURE);
 }
 
@@ -198,7 +196,7 @@ static void QEMU_NORETURN help(void)
            "  'skip=N' skip N bs-sized blocks at the start of input\n";
 
     printf("%s\nSupported formats:", help_msg);
-    bdrv_iterate_format(format_print, NULL);
+    bdrv_iterate_format(format_print, NULL, false);
     printf("\n\n" QEMU_HELP_BOTTOM "\n");
     exit(EXIT_SUCCESS);
 }
@@ -261,16 +259,28 @@ static int print_block_option_help(const char *filename, const char *fmt)
             return 1;
         }
         if (!proto_drv->create_opts) {
-            error_report("Protocal driver '%s' does not support image creation",
+            error_report("Protocol driver '%s' does not support image creation",
                          proto_drv->format_name);
+            qemu_opts_free(create_opts);
             return 1;
         }
         create_opts = qemu_opts_append(create_opts, proto_drv->create_opts);
     }
 
-    printf("Supported options:\n");
-    qemu_opts_print_help(create_opts);
+    if (filename) {
+        printf("Supported options:\n");
+    } else {
+        printf("Supported %s options:\n", fmt);
+    }
+    qemu_opts_print_help(create_opts, false);
     qemu_opts_free(create_opts);
+
+    if (!filename) {
+        printf("\n"
+               "The protocol level may support further options.\n"
+               "Specify the target filename to include those options.\n");
+    }
+
     return 0;
 }
 
@@ -502,7 +512,7 @@ static int img_create(int argc, char **argv)
 
     if (qemu_opts_foreach(&qemu_object_opts,
                           user_creatable_add_opts_foreach,
-                          NULL, NULL)) {
+                          NULL, &error_fatal)) {
         goto fail;
     }
 
@@ -752,7 +762,7 @@ static int img_check(int argc, char **argv)
 
     if (qemu_opts_foreach(&qemu_object_opts,
                           user_creatable_add_opts_foreach,
-                          NULL, NULL)) {
+                          NULL, &error_fatal)) {
         return 1;
     }
 
@@ -965,7 +975,7 @@ static int img_commit(int argc, char **argv)
 
     if (qemu_opts_foreach(&qemu_object_opts,
                           user_creatable_add_opts_foreach,
-                          NULL, NULL)) {
+                          NULL, &error_fatal)) {
         return 1;
     }
 
@@ -1029,6 +1039,7 @@ static int img_commit(int argc, char **argv)
     }
 
     job = block_job_get("commit");
+    assert(job);
     run_block_job(job, &local_err);
     if (local_err) {
         goto unref_backing;
@@ -1347,7 +1358,7 @@ static int img_compare(int argc, char **argv)
 
     if (qemu_opts_foreach(&qemu_object_opts,
                           user_creatable_add_opts_foreach,
-                          NULL, NULL)) {
+                          NULL, &error_fatal)) {
         ret = 2;
         goto out4;
     }
@@ -1628,6 +1639,8 @@ static int convert_iteration_sectors(ImgConvertState *s, int64_t sector_num)
                                           count, &count, NULL, NULL);
         }
         if (ret < 0) {
+            error_report("error while reading block status of sector %" PRId64
+                         ": %s", sector_num, strerror(-ret));
             return ret;
         }
         n = DIV_ROUND_UP(count, BDRV_SECTOR_SIZE);
@@ -1667,8 +1680,6 @@ static int coroutine_fn convert_co_read(ImgConvertState *s, int64_t sector_num,
                                         int nb_sectors, uint8_t *buf)
 {
     int n, ret;
-    QEMUIOVector qiov;
-    struct iovec iov;
 
     assert(nb_sectors <= s->buf_sectors);
     while (nb_sectors > 0) {
@@ -1684,13 +1695,10 @@ static int coroutine_fn convert_co_read(ImgConvertState *s, int64_t sector_num,
         bs_sectors = s->src_sectors[src_cur];
 
         n = MIN(nb_sectors, bs_sectors - (sector_num - src_cur_offset));
-        iov.iov_base = buf;
-        iov.iov_len = n << BDRV_SECTOR_BITS;
-        qemu_iovec_init_external(&qiov, &iov, 1);
 
-        ret = blk_co_preadv(
+        ret = blk_co_pread(
                 blk, (sector_num - src_cur_offset) << BDRV_SECTOR_BITS,
-                n << BDRV_SECTOR_BITS, &qiov, 0);
+                n << BDRV_SECTOR_BITS, buf, 0);
         if (ret < 0) {
             return ret;
         }
@@ -1709,8 +1717,6 @@ static int coroutine_fn convert_co_write(ImgConvertState *s, int64_t sector_num,
                                          enum ImgConvertBlockStatus status)
 {
     int ret;
-    QEMUIOVector qiov;
-    struct iovec iov;
 
     while (nb_sectors > 0) {
         int n = nb_sectors;
@@ -1738,12 +1744,8 @@ static int coroutine_fn convert_co_write(ImgConvertState *s, int64_t sector_num,
                 (s->compressed &&
                  !buffer_is_zero(buf, n * BDRV_SECTOR_SIZE)))
             {
-                iov.iov_base = buf;
-                iov.iov_len = n << BDRV_SECTOR_BITS;
-                qemu_iovec_init_external(&qiov, &iov, 1);
-
-                ret = blk_co_pwritev(s->target, sector_num << BDRV_SECTOR_BITS,
-                                     n << BDRV_SECTOR_BITS, &qiov, flags);
+                ret = blk_co_pwrite(s->target, sector_num << BDRV_SECTOR_BITS,
+                                    n << BDRV_SECTOR_BITS, buf, flags);
                 if (ret < 0) {
                     return ret;
                 }
@@ -1758,7 +1760,8 @@ static int coroutine_fn convert_co_write(ImgConvertState *s, int64_t sector_num,
             }
             ret = blk_co_pwrite_zeroes(s->target,
                                        sector_num << BDRV_SECTOR_BITS,
-                                       n << BDRV_SECTOR_BITS, 0);
+                                       n << BDRV_SECTOR_BITS,
+                                       BDRV_REQ_MAY_UNMAP);
             if (ret < 0) {
                 return ret;
             }
@@ -1936,7 +1939,7 @@ static int convert_do_copy(ImgConvertState *s)
     if (!s->has_zero_init && !s->target_has_backing &&
         bdrv_can_write_zeroes_with_unmap(blk_bs(s->target)))
     {
-        ret = blk_make_zero(s->target, BDRV_REQ_MAY_UNMAP);
+        ret = blk_make_zero(s->target, BDRV_REQ_MAY_UNMAP | BDRV_REQ_NO_FALLBACK);
         if (ret == 0) {
             s->has_zero_init = true;
         }
@@ -2157,7 +2160,7 @@ static int img_convert(int argc, char **argv)
 
     if (qemu_opts_foreach(&qemu_object_opts,
                           user_creatable_add_opts_foreach,
-                          NULL, NULL)) {
+                          NULL, &error_fatal)) {
         goto fail_getopt;
     }
 
@@ -2486,11 +2489,11 @@ static void dump_snapshots(BlockDriverState *bs)
     if (nb_sns <= 0)
         return;
     printf("Snapshot list:\n");
-    bdrv_snapshot_dump(fprintf, stdout, NULL);
+    bdrv_snapshot_dump(NULL);
     printf("\n");
     for(i = 0; i < nb_sns; i++) {
         sn = &sn_tab[i];
-        bdrv_snapshot_dump(fprintf, stdout, sn);
+        bdrv_snapshot_dump(sn);
         printf("\n");
     }
     g_free(sn_tab);
@@ -2539,7 +2542,7 @@ static void dump_human_image_info_list(ImageInfoList *list)
         }
         delim = true;
 
-        bdrv_image_info_dump(fprintf, stdout, elem->value);
+        bdrv_image_info_dump(elem->value);
     }
 }
 
@@ -2711,7 +2714,7 @@ static int img_info(int argc, char **argv)
 
     if (qemu_opts_foreach(&qemu_object_opts,
                           user_creatable_add_opts_foreach,
-                          NULL, NULL)) {
+                          NULL, &error_fatal)) {
         return 1;
     }
 
@@ -2738,14 +2741,14 @@ static int img_info(int argc, char **argv)
     return 0;
 }
 
-static void dump_map_entry(OutputFormat output_format, MapEntry *e,
-                           MapEntry *next)
+static int dump_map_entry(OutputFormat output_format, MapEntry *e,
+                          MapEntry *next)
 {
     switch (output_format) {
     case OFORMAT_HUMAN:
         if (e->data && !e->has_offset) {
             error_report("File contains external, encrypted or compressed clusters.");
-            exit(1);
+            return -1;
         }
         if (e->data && !e->zero) {
             printf("%#-16"PRIx64"%#-16"PRIx64"%#-16"PRIx64"%s\n",
@@ -2778,6 +2781,7 @@ static void dump_map_entry(OutputFormat output_format, MapEntry *e,
         }
         break;
     }
+    return 0;
 }
 
 static int get_block_status(BlockDriverState *bs, int64_t offset,
@@ -2788,6 +2792,7 @@ static int get_block_status(BlockDriverState *bs, int64_t offset,
     BlockDriverState *file;
     bool has_offset;
     int64_t map;
+    char *filename = NULL;
 
     /* As an optimization, we could cache the current range of unallocated
      * clusters in each file of the chain, and avoid querying the same
@@ -2815,6 +2820,11 @@ static int get_block_status(BlockDriverState *bs, int64_t offset,
 
     has_offset = !!(ret & BDRV_BLOCK_OFFSET_VALID);
 
+    if (file && has_offset) {
+        bdrv_refresh_filename(file);
+        filename = file->filename;
+    }
+
     *e = (MapEntry) {
         .start = offset,
         .length = bytes,
@@ -2823,8 +2833,8 @@ static int get_block_status(BlockDriverState *bs, int64_t offset,
         .offset = map,
         .has_offset = has_offset,
         .depth = depth,
-        .has_filename = file && has_offset,
-        .filename = file && has_offset ? file->filename : NULL,
+        .has_filename = filename,
+        .filename = filename,
     };
 
     return 0;
@@ -2930,7 +2940,7 @@ static int img_map(int argc, char **argv)
 
     if (qemu_opts_foreach(&qemu_object_opts,
                           user_creatable_add_opts_foreach,
-                          NULL, NULL)) {
+                          NULL, &error_fatal)) {
         return 1;
     }
 
@@ -2964,12 +2974,15 @@ static int img_map(int argc, char **argv)
         }
 
         if (curr.length > 0) {
-            dump_map_entry(output_format, &curr, &next);
+            ret = dump_map_entry(output_format, &curr, &next);
+            if (ret < 0) {
+                goto out;
+            }
         }
         curr = next;
     }
 
-    dump_map_entry(output_format, &curr, NULL);
+    ret = dump_map_entry(output_format, &curr, NULL);
 
 out:
     blk_unref(blk);
@@ -3079,7 +3092,7 @@ static int img_snapshot(int argc, char **argv)
 
     if (qemu_opts_foreach(&qemu_object_opts,
                           user_creatable_add_opts_foreach,
-                          NULL, NULL)) {
+                          NULL, &error_fatal)) {
         return 1;
     }
 
@@ -3121,11 +3134,18 @@ static int img_snapshot(int argc, char **argv)
         break;
 
     case SNAPSHOT_DELETE:
-        bdrv_snapshot_delete_by_id_or_name(bs, snapshot_name, &err);
-        if (err) {
-            error_reportf_err(err, "Could not delete snapshot '%s': ",
-                              snapshot_name);
+        ret = bdrv_snapshot_find(bs, &sn, snapshot_name);
+        if (ret < 0) {
+            error_report("Could not delete snapshot '%s': snapshot not "
+                         "found", snapshot_name);
             ret = 1;
+        } else {
+            ret = bdrv_snapshot_delete(bs, sn.id_str, sn.name, &err);
+            if (ret < 0) {
+                error_reportf_err(err, "Could not delete snapshot '%s': ",
+                                  snapshot_name);
+                ret = 1;
+            }
         }
         break;
     }
@@ -3239,7 +3259,7 @@ static int img_rebase(int argc, char **argv)
 
     if (qemu_opts_foreach(&qemu_object_opts,
                           user_creatable_add_opts_foreach,
-                          NULL, NULL)) {
+                          NULL, &error_fatal)) {
         return 1;
     }
 
@@ -3325,20 +3345,17 @@ static int img_rebase(int argc, char **argv)
                 qdict_put_bool(options, BDRV_OPT_FORCE_SHARE, true);
             }
 
+            bdrv_refresh_filename(bs);
             overlay_filename = bs->exact_filename[0] ? bs->exact_filename
                                                      : bs->filename;
-            out_real_path = g_malloc(PATH_MAX);
-
-            bdrv_get_full_backing_filename_from_filename(overlay_filename,
-                                                         out_baseimg,
-                                                         out_real_path,
-                                                         PATH_MAX,
-                                                         &local_err);
+            out_real_path =
+                bdrv_get_full_backing_filename_from_filename(overlay_filename,
+                                                             out_baseimg,
+                                                             &local_err);
             if (local_err) {
                 error_reportf_err(local_err,
                                   "Could not resolve backing filename: ");
                 ret = -1;
-                g_free(out_real_path);
                 goto out;
             }
 
@@ -3619,7 +3636,7 @@ static int img_resize(int argc, char **argv)
 
     if (qemu_opts_foreach(&qemu_object_opts,
                           user_creatable_add_opts_foreach,
-                          NULL, NULL)) {
+                          NULL, &error_fatal)) {
         return 1;
     }
 
@@ -3773,7 +3790,7 @@ static int print_amend_option_help(const char *format)
     assert(drv->create_opts);
 
     printf("Creation options for '%s':\n", format);
-    qemu_opts_print_help(drv->create_opts);
+    qemu_opts_print_help(drv->create_opts, false);
     printf("\nNote that not all of these options may be amendable.\n");
     return 0;
 }
@@ -3863,7 +3880,7 @@ static int img_amend(int argc, char **argv)
 
     if (qemu_opts_foreach(&qemu_object_opts,
                           user_creatable_add_opts_foreach,
-                          NULL, NULL)) {
+                          NULL, &error_fatal)) {
         ret = -1;
         goto out_no_progress;
     }
@@ -4507,7 +4524,7 @@ static int img_dd(int argc, char **argv)
 
     if (qemu_opts_foreach(&qemu_object_opts,
                           user_creatable_add_opts_foreach,
-                          NULL, NULL)) {
+                          NULL, &error_fatal)) {
         ret = -1;
         goto out;
     }
@@ -4784,7 +4801,7 @@ static int img_measure(int argc, char **argv)
 
     if (qemu_opts_foreach(&qemu_object_opts,
                           user_creatable_add_opts_foreach,
-                          NULL, NULL)) {
+                          NULL, &error_fatal)) {
         goto out;
     }
 
@@ -4910,8 +4927,8 @@ int main(int argc, char **argv)
     signal(SIGPIPE, SIG_IGN);
 #endif
 
+    error_init(argv[0]);
     module_call_init(MODULE_INIT_TRACE);
-    error_set_progname(argv[0]);
     qemu_init_exec_dir(argv[0]);
 
     if (qemu_init_main_loop(&local_error)) {
@@ -4960,7 +4977,7 @@ int main(int argc, char **argv)
         return 0;
     }
     argv += optind;
-    optind = 0;
+    qemu_reset_optind();
 
     if (!trace_init_backends()) {
         exit(1);
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