--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/symbian-qemu-0.9.1-12/qemu-symbian-svp/qemu-img.c Fri Jul 31 15:01:17 2009 +0100
@@ -0,0 +1,756 @@
+/*
+ * QEMU disk image utility
+ *
+ * Copyright (c) 2003-2008 Fabrice Bellard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#include "qemu-common.h"
+#include "block_int.h"
+#include <assert.h>
+
+#ifdef _WIN32
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+#endif
+
+/* Default to cache=writeback as data integrity is not important for qemu-tcg. */
+#define BRDV_O_FLAGS BDRV_O_CACHE_WB
+
+static void __attribute__((noreturn)) error(const char *fmt, ...)
+{
+ va_list ap;
+ va_start(ap, fmt);
+ fprintf(stderr, "qemu-img: ");
+ vfprintf(stderr, fmt, ap);
+ fprintf(stderr, "\n");
+ exit(1);
+ va_end(ap);
+}
+
+static void format_print(void *opaque, const char *name)
+{
+ printf(" %s", name);
+}
+
+static void help(void)
+{
+ printf("qemu-img version " QEMU_VERSION ", Copyright (c) 2004-2008 Fabrice Bellard\n"
+ "usage: qemu-img command [command options]\n"
+ "QEMU disk image utility\n"
+ "\n"
+ "Command syntax:\n"
+ " create [-e] [-6] [-b base_image] [-f fmt] filename [size]\n"
+ " commit [-f fmt] filename\n"
+ " convert [-c] [-e] [-6] [-f fmt] [-O output_fmt] [-B output_base_image] filename [filename2 [...]] output_filename\n"
+ " info [-f fmt] filename\n"
+ "\n"
+ "Command parameters:\n"
+ " 'filename' is a disk image filename\n"
+ " 'base_image' is the read-only disk image which is used as base for a copy on\n"
+ " write image; the copy on write image only stores the modified data\n"
+ " 'output_base_image' forces the output image to be created as a copy on write\n"
+ " image of the specified base image; 'output_base_image' should have the same\n"
+ " content as the input's base image, however the path, image format, etc may\n"
+ " differ\n"
+ " 'fmt' is the disk image format. It is guessed automatically in most cases\n"
+ " 'size' is the disk image size in kilobytes. Optional suffixes 'M' (megabyte)\n"
+ " and 'G' (gigabyte) are supported\n"
+ " 'output_filename' is the destination disk image filename\n"
+ " 'output_fmt' is the destination format\n"
+ " '-c' indicates that target image must be compressed (qcow format only)\n"
+ " '-e' indicates that the target image must be encrypted (qcow format only)\n"
+ " '-6' indicates that the target image must use compatibility level 6 (vmdk format only)\n"
+ );
+ printf("\nSupported format:");
+ bdrv_iterate_format(format_print, NULL);
+ printf("\n");
+ exit(1);
+}
+
+#if defined(WIN32)
+/* XXX: put correct support for win32 */
+static int read_password(char *buf, int buf_size)
+{
+ int c, i;
+ printf("Password: ");
+ fflush(stdout);
+ i = 0;
+ for(;;) {
+ c = getchar();
+ if (c == '\n')
+ break;
+ if (i < (buf_size - 1))
+ buf[i++] = c;
+ }
+ buf[i] = '\0';
+ return 0;
+}
+
+#else
+
+#include <termios.h>
+
+static struct termios oldtty;
+
+static void term_exit(void)
+{
+ tcsetattr (0, TCSANOW, &oldtty);
+}
+
+static void term_init(void)
+{
+ struct termios tty;
+
+ tcgetattr (0, &tty);
+ oldtty = tty;
+
+ tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
+ |INLCR|IGNCR|ICRNL|IXON);
+ tty.c_oflag |= OPOST;
+ tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
+ tty.c_cflag &= ~(CSIZE|PARENB);
+ tty.c_cflag |= CS8;
+ tty.c_cc[VMIN] = 1;
+ tty.c_cc[VTIME] = 0;
+
+ tcsetattr (0, TCSANOW, &tty);
+
+ atexit(term_exit);
+}
+
+static int read_password(char *buf, int buf_size)
+{
+ uint8_t ch;
+ int i, ret;
+
+ printf("password: ");
+ fflush(stdout);
+ term_init();
+ i = 0;
+ for(;;) {
+ ret = read(0, &ch, 1);
+ if (ret == -1) {
+ if (errno == EAGAIN || errno == EINTR) {
+ continue;
+ } else {
+ ret = -1;
+ break;
+ }
+ } else if (ret == 0) {
+ ret = -1;
+ break;
+ } else {
+ if (ch == '\r') {
+ ret = 0;
+ break;
+ }
+ if (i < (buf_size - 1))
+ buf[i++] = ch;
+ }
+ }
+ term_exit();
+ buf[i] = '\0';
+ printf("\n");
+ return ret;
+}
+#endif
+
+static BlockDriverState *bdrv_new_open(const char *filename,
+ const char *fmt)
+{
+ BlockDriverState *bs;
+ BlockDriver *drv;
+ char password[256];
+
+ bs = bdrv_new("");
+ if (!bs)
+ error("Not enough memory");
+ if (fmt) {
+ drv = bdrv_find_format(fmt);
+ if (!drv)
+ error("Unknown file format '%s'", fmt);
+ } else {
+ drv = NULL;
+ }
+ if (bdrv_open2(bs, filename, BRDV_O_FLAGS, drv) < 0) {
+ error("Could not open '%s'", filename);
+ }
+ if (bdrv_is_encrypted(bs)) {
+ printf("Disk image '%s' is encrypted.\n", filename);
+ if (read_password(password, sizeof(password)) < 0)
+ error("No password given");
+ if (bdrv_set_key(bs, password) < 0)
+ error("invalid password");
+ }
+ return bs;
+}
+
+static int img_create(int argc, char **argv)
+{
+ int c, ret, flags;
+ const char *fmt = "raw";
+ const char *filename;
+ const char *base_filename = NULL;
+ uint64_t size;
+ const char *p;
+ BlockDriver *drv;
+
+ flags = 0;
+ for(;;) {
+ c = getopt(argc, argv, "b:f:he6");
+ if (c == -1)
+ break;
+ switch(c) {
+ case 'h':
+ help();
+ break;
+ case 'b':
+ base_filename = optarg;
+ break;
+ case 'f':
+ fmt = optarg;
+ break;
+ case 'e':
+ flags |= BLOCK_FLAG_ENCRYPT;
+ break;
+ case '6':
+ flags |= BLOCK_FLAG_COMPAT6;
+ break;
+ }
+ }
+ if (optind >= argc)
+ help();
+ filename = argv[optind++];
+ size = 0;
+ if (base_filename) {
+ BlockDriverState *bs;
+ bs = bdrv_new_open(base_filename, NULL);
+ bdrv_get_geometry(bs, &size);
+ size *= 512;
+ bdrv_delete(bs);
+ } else {
+ if (optind >= argc)
+ help();
+ p = argv[optind];
+ size = strtoul(p, (char **)&p, 0);
+ if (*p == 'M') {
+ size *= 1024 * 1024;
+ } else if (*p == 'G') {
+ size *= 1024 * 1024 * 1024;
+ } else if (*p == 'k' || *p == 'K' || *p == '\0') {
+ size *= 1024;
+ } else {
+ help();
+ }
+ }
+ drv = bdrv_find_format(fmt);
+ if (!drv)
+ error("Unknown file format '%s'", fmt);
+ printf("Formatting '%s', fmt=%s",
+ filename, fmt);
+ if (flags & BLOCK_FLAG_ENCRYPT)
+ printf(", encrypted");
+ if (flags & BLOCK_FLAG_COMPAT6)
+ printf(", compatibility level=6");
+ if (base_filename) {
+ printf(", backing_file=%s",
+ base_filename);
+ }
+ printf(", size=%" PRIu64 " kB\n", size / 1024);
+ ret = bdrv_create(drv, filename, size / 512, base_filename, flags);
+ if (ret < 0) {
+ if (ret == -ENOTSUP) {
+ error("Formatting or formatting option not supported for file format '%s'", fmt);
+ } else {
+ error("Error while formatting");
+ }
+ }
+ return 0;
+}
+
+static int img_commit(int argc, char **argv)
+{
+ int c, ret;
+ const char *filename, *fmt;
+ BlockDriver *drv;
+ BlockDriverState *bs;
+
+ fmt = NULL;
+ for(;;) {
+ c = getopt(argc, argv, "f:h");
+ if (c == -1)
+ break;
+ switch(c) {
+ case 'h':
+ help();
+ break;
+ case 'f':
+ fmt = optarg;
+ break;
+ }
+ }
+ if (optind >= argc)
+ help();
+ filename = argv[optind++];
+
+ bs = bdrv_new("");
+ if (!bs)
+ error("Not enough memory");
+ if (fmt) {
+ drv = bdrv_find_format(fmt);
+ if (!drv)
+ error("Unknown file format '%s'", fmt);
+ } else {
+ drv = NULL;
+ }
+ if (bdrv_open2(bs, filename, BRDV_O_FLAGS, drv) < 0) {
+ error("Could not open '%s'", filename);
+ }
+ ret = bdrv_commit(bs);
+ switch(ret) {
+ case 0:
+ printf("Image committed.\n");
+ break;
+ case -ENOENT:
+ error("No disk inserted");
+ break;
+ case -EACCES:
+ error("Image is read-only");
+ break;
+ case -ENOTSUP:
+ error("Image is already committed");
+ break;
+ default:
+ error("Error while committing image");
+ break;
+ }
+
+ bdrv_delete(bs);
+ return 0;
+}
+
+static int is_not_zero(const uint8_t *sector, int len)
+{
+ int i;
+ len >>= 2;
+ for(i = 0;i < len; i++) {
+ if (((uint32_t *)sector)[i] != 0)
+ return 1;
+ }
+ return 0;
+}
+
+/*
+ * Returns true iff the first sector pointed to by 'buf' contains at least
+ * a non-NUL byte.
+ *
+ * 'pnum' is set to the number of sectors (including and immediately following
+ * the first one) that are known to be in the same allocated/unallocated state.
+ */
+static int is_allocated_sectors(const uint8_t *buf, int n, int *pnum)
+{
+ int v, i;
+
+ if (n <= 0) {
+ *pnum = 0;
+ return 0;
+ }
+ v = is_not_zero(buf, 512);
+ for(i = 1; i < n; i++) {
+ buf += 512;
+ if (v != is_not_zero(buf, 512))
+ break;
+ }
+ *pnum = i;
+ return v;
+}
+
+#define IO_BUF_SIZE 65536
+
+static int img_convert(int argc, char **argv)
+{
+ int c, ret, n, n1, bs_n, bs_i, flags, cluster_size, cluster_sectors;
+ const char *fmt, *out_fmt, *out_baseimg, *out_filename;
+ BlockDriver *drv;
+ BlockDriverState **bs, *out_bs;
+ int64_t total_sectors, nb_sectors, sector_num, bs_offset;
+ uint64_t bs_sectors;
+ uint8_t buf[IO_BUF_SIZE];
+ const uint8_t *buf1;
+ BlockDriverInfo bdi;
+
+ fmt = NULL;
+ out_fmt = "raw";
+ out_baseimg = NULL;
+ flags = 0;
+ for(;;) {
+ c = getopt(argc, argv, "f:O:B:hce6");
+ if (c == -1)
+ break;
+ switch(c) {
+ case 'h':
+ help();
+ break;
+ case 'f':
+ fmt = optarg;
+ break;
+ case 'O':
+ out_fmt = optarg;
+ break;
+ case 'B':
+ out_baseimg = optarg;
+ break;
+ case 'c':
+ flags |= BLOCK_FLAG_COMPRESS;
+ break;
+ case 'e':
+ flags |= BLOCK_FLAG_ENCRYPT;
+ break;
+ case '6':
+ flags |= BLOCK_FLAG_COMPAT6;
+ break;
+ }
+ }
+
+ bs_n = argc - optind - 1;
+ if (bs_n < 1) help();
+
+ out_filename = argv[argc - 1];
+
+ if (bs_n > 1 && out_baseimg)
+ error("-B makes no sense when concatenating multiple input images");
+
+ bs = calloc(bs_n, sizeof(BlockDriverState *));
+ if (!bs)
+ error("Out of memory");
+
+ total_sectors = 0;
+ for (bs_i = 0; bs_i < bs_n; bs_i++) {
+ bs[bs_i] = bdrv_new_open(argv[optind + bs_i], fmt);
+ if (!bs[bs_i])
+ error("Could not open '%s'", argv[optind + bs_i]);
+ bdrv_get_geometry(bs[bs_i], &bs_sectors);
+ total_sectors += bs_sectors;
+ }
+
+ drv = bdrv_find_format(out_fmt);
+ if (!drv)
+ error("Unknown file format '%s'", out_fmt);
+ if (flags & BLOCK_FLAG_COMPRESS && drv != &bdrv_qcow && drv != &bdrv_qcow2)
+ error("Compression not supported for this file format");
+ if (flags & BLOCK_FLAG_ENCRYPT && drv != &bdrv_qcow && drv != &bdrv_qcow2)
+ error("Encryption not supported for this file format");
+ if (flags & BLOCK_FLAG_COMPAT6 && drv != &bdrv_vmdk)
+ error("Alternative compatibility level not supported for this file format");
+ if (flags & BLOCK_FLAG_ENCRYPT && flags & BLOCK_FLAG_COMPRESS)
+ error("Compression and encryption not supported at the same time");
+
+ ret = bdrv_create(drv, out_filename, total_sectors, out_baseimg, flags);
+ if (ret < 0) {
+ if (ret == -ENOTSUP) {
+ error("Formatting not supported for file format '%s'", fmt);
+ } else {
+ error("Error while formatting '%s'", out_filename);
+ }
+ }
+
+ out_bs = bdrv_new_open(out_filename, out_fmt);
+
+ bs_i = 0;
+ bs_offset = 0;
+ bdrv_get_geometry(bs[0], &bs_sectors);
+
+ if (flags & BLOCK_FLAG_COMPRESS) {
+ if (bdrv_get_info(out_bs, &bdi) < 0)
+ error("could not get block driver info");
+ cluster_size = bdi.cluster_size;
+ if (cluster_size <= 0 || cluster_size > IO_BUF_SIZE)
+ error("invalid cluster size");
+ cluster_sectors = cluster_size >> 9;
+ sector_num = 0;
+ for(;;) {
+ int64_t bs_num;
+ int remainder;
+ uint8_t *buf2;
+
+ nb_sectors = total_sectors - sector_num;
+ if (nb_sectors <= 0)
+ break;
+ if (nb_sectors >= cluster_sectors)
+ n = cluster_sectors;
+ else
+ n = nb_sectors;
+
+ bs_num = sector_num - bs_offset;
+ assert (bs_num >= 0);
+ remainder = n;
+ buf2 = buf;
+ while (remainder > 0) {
+ int nlow;
+ while (bs_num == bs_sectors) {
+ bs_i++;
+ assert (bs_i < bs_n);
+ bs_offset += bs_sectors;
+ bdrv_get_geometry(bs[bs_i], &bs_sectors);
+ bs_num = 0;
+ /* printf("changing part: sector_num=%lld, "
+ "bs_i=%d, bs_offset=%lld, bs_sectors=%lld\n",
+ sector_num, bs_i, bs_offset, bs_sectors); */
+ }
+ assert (bs_num < bs_sectors);
+
+ nlow = (remainder > bs_sectors - bs_num) ? bs_sectors - bs_num : remainder;
+
+ if (bdrv_read(bs[bs_i], bs_num, buf2, nlow) < 0)
+ error("error while reading");
+
+ buf2 += nlow * 512;
+ bs_num += nlow;
+
+ remainder -= nlow;
+ }
+ assert (remainder == 0);
+
+ if (n < cluster_sectors)
+ memset(buf + n * 512, 0, cluster_size - n * 512);
+ if (is_not_zero(buf, cluster_size)) {
+ if (bdrv_write_compressed(out_bs, sector_num, buf,
+ cluster_sectors) != 0)
+ error("error while compressing sector %" PRId64,
+ sector_num);
+ }
+ sector_num += n;
+ }
+ /* signal EOF to align */
+ bdrv_write_compressed(out_bs, 0, NULL, 0);
+ } else {
+ sector_num = 0; // total number of sectors converted so far
+ for(;;) {
+ nb_sectors = total_sectors - sector_num;
+ if (nb_sectors <= 0)
+ break;
+ if (nb_sectors >= (IO_BUF_SIZE / 512))
+ n = (IO_BUF_SIZE / 512);
+ else
+ n = nb_sectors;
+
+ while (sector_num - bs_offset >= bs_sectors) {
+ bs_i ++;
+ assert (bs_i < bs_n);
+ bs_offset += bs_sectors;
+ bdrv_get_geometry(bs[bs_i], &bs_sectors);
+ /* printf("changing part: sector_num=%lld, bs_i=%d, "
+ "bs_offset=%lld, bs_sectors=%lld\n",
+ sector_num, bs_i, bs_offset, bs_sectors); */
+ }
+
+ if (n > bs_offset + bs_sectors - sector_num)
+ n = bs_offset + bs_sectors - sector_num;
+
+ /* If the output image is being created as a copy on write image,
+ assume that sectors which are unallocated in the input image
+ are present in both the output's and input's base images (no
+ need to copy them). */
+ if (out_baseimg) {
+ if (!bdrv_is_allocated(bs[bs_i], sector_num - bs_offset, n, &n1)) {
+ sector_num += n1;
+ continue;
+ }
+ /* The next 'n1' sectors are allocated in the input image. Copy
+ only those as they may be followed by unallocated sectors. */
+ n = n1;
+ }
+
+ if (bdrv_read(bs[bs_i], sector_num - bs_offset, buf, n) < 0)
+ error("error while reading");
+ /* NOTE: at the same time we convert, we do not write zero
+ sectors to have a chance to compress the image. Ideally, we
+ should add a specific call to have the info to go faster */
+ buf1 = buf;
+ while (n > 0) {
+ /* If the output image is being created as a copy on write image,
+ copy all sectors even the ones containing only NUL bytes,
+ because they may differ from the sectors in the base image. */
+ if (out_baseimg || is_allocated_sectors(buf1, n, &n1)) {
+ if (bdrv_write(out_bs, sector_num, buf1, n1) < 0)
+ error("error while writing");
+ }
+ sector_num += n1;
+ n -= n1;
+ buf1 += n1 * 512;
+ }
+ }
+ }
+ bdrv_delete(out_bs);
+ for (bs_i = 0; bs_i < bs_n; bs_i++)
+ bdrv_delete(bs[bs_i]);
+ free(bs);
+ return 0;
+}
+
+#ifdef _WIN32
+static int64_t get_allocated_file_size(const char *filename)
+{
+ typedef DWORD (WINAPI * get_compressed_t)(const char *filename, DWORD *high);
+ get_compressed_t get_compressed;
+ struct _stati64 st;
+
+ /* WinNT support GetCompressedFileSize to determine allocate size */
+ get_compressed = (get_compressed_t) GetProcAddress(GetModuleHandle("kernel32"), "GetCompressedFileSizeA");
+ if (get_compressed) {
+ DWORD high, low;
+ low = get_compressed(filename, &high);
+ if (low != 0xFFFFFFFFlu || GetLastError() == NO_ERROR)
+ return (((int64_t) high) << 32) + low;
+ }
+
+ if (_stati64(filename, &st) < 0)
+ return -1;
+ return st.st_size;
+}
+#else
+static int64_t get_allocated_file_size(const char *filename)
+{
+ struct stat st;
+ if (stat(filename, &st) < 0)
+ return -1;
+ return (int64_t)st.st_blocks * 512;
+}
+#endif
+
+static void dump_snapshots(BlockDriverState *bs)
+{
+ QEMUSnapshotInfo *sn_tab, *sn;
+ int nb_sns, i;
+ char buf[256];
+
+ nb_sns = bdrv_snapshot_list(bs, &sn_tab);
+ if (nb_sns <= 0)
+ return;
+ printf("Snapshot list:\n");
+ printf("%s\n", bdrv_snapshot_dump(buf, sizeof(buf), NULL));
+ for(i = 0; i < nb_sns; i++) {
+ sn = &sn_tab[i];
+ printf("%s\n", bdrv_snapshot_dump(buf, sizeof(buf), sn));
+ }
+ qemu_free(sn_tab);
+}
+
+static int img_info(int argc, char **argv)
+{
+ int c;
+ const char *filename, *fmt;
+ BlockDriver *drv;
+ BlockDriverState *bs;
+ char fmt_name[128], size_buf[128], dsize_buf[128];
+ uint64_t total_sectors;
+ int64_t allocated_size;
+ char backing_filename[1024];
+ char backing_filename2[1024];
+ BlockDriverInfo bdi;
+
+ fmt = NULL;
+ for(;;) {
+ c = getopt(argc, argv, "f:h");
+ if (c == -1)
+ break;
+ switch(c) {
+ case 'h':
+ help();
+ break;
+ case 'f':
+ fmt = optarg;
+ break;
+ }
+ }
+ if (optind >= argc)
+ help();
+ filename = argv[optind++];
+
+ bs = bdrv_new("");
+ if (!bs)
+ error("Not enough memory");
+ if (fmt) {
+ drv = bdrv_find_format(fmt);
+ if (!drv)
+ error("Unknown file format '%s'", fmt);
+ } else {
+ drv = NULL;
+ }
+ if (bdrv_open2(bs, filename, BRDV_O_FLAGS, drv) < 0) {
+ error("Could not open '%s'", filename);
+ }
+ bdrv_get_format(bs, fmt_name, sizeof(fmt_name));
+ bdrv_get_geometry(bs, &total_sectors);
+ get_human_readable_size(size_buf, sizeof(size_buf), total_sectors * 512);
+ allocated_size = get_allocated_file_size(filename);
+ if (allocated_size < 0)
+ snprintf(dsize_buf, sizeof(dsize_buf), "unavailable");
+ else
+ get_human_readable_size(dsize_buf, sizeof(dsize_buf),
+ allocated_size);
+ printf("image: %s\n"
+ "file format: %s\n"
+ "virtual size: %s (%" PRId64 " bytes)\n"
+ "disk size: %s\n",
+ filename, fmt_name, size_buf,
+ (total_sectors * 512),
+ dsize_buf);
+ if (bdrv_is_encrypted(bs))
+ printf("encrypted: yes\n");
+ if (bdrv_get_info(bs, &bdi) >= 0) {
+ if (bdi.cluster_size != 0)
+ printf("cluster_size: %d\n", bdi.cluster_size);
+ }
+ bdrv_get_backing_filename(bs, backing_filename, sizeof(backing_filename));
+ if (backing_filename[0] != '\0') {
+ path_combine(backing_filename2, sizeof(backing_filename2),
+ filename, backing_filename);
+ printf("backing file: %s (actual path: %s)\n",
+ backing_filename,
+ backing_filename2);
+ }
+ dump_snapshots(bs);
+ bdrv_delete(bs);
+ return 0;
+}
+
+int main(int argc, char **argv)
+{
+ const char *cmd;
+
+ bdrv_init();
+ if (argc < 2)
+ help();
+ cmd = argv[1];
+ optind++;
+ if (!strcmp(cmd, "create")) {
+ img_create(argc, argv);
+ } else if (!strcmp(cmd, "commit")) {
+ img_commit(argc, argv);
+ } else if (!strcmp(cmd, "convert")) {
+ img_convert(argc, argv);
+ } else if (!strcmp(cmd, "info")) {
+ img_info(argc, argv);
+ } else {
+ help();
+ }
+ return 0;
+}