/* * Little program to show how to modify an iso image. */ #include "libisofs.h" #include "libburn/libburn.h" #include #include #include #include #include #include #include #include void usage(char **argv) { printf("%s [OPTIONS] IMAGE DIRECTORY OUTPUT\n", argv[0]); } int main(int argc, char **argv) { int result; IsoImage *image; IsoDataSource *src; struct burn_source *burn_src; unsigned char buf[2048]; FILE *fd; Ecma119WriteOpts opts = { 1, /* level */ 1, /* rockridge */ 0, /* omit_version_numbers */ 0, /* allow_deep_paths */ 0, /* sort files */ 0, /* replace_dir_mode */ 0, /* replace_file_mode */ 0, /* replace_uid */ 0, /* replace_gid */ 0, /* dir_mode */ 0, /* file_mode */ 0, /* uid */ 0, /* gid */ NULL /* output charset */ }; struct iso_read_opts ropts = { 0, /* block */ 0, /* norock */ 0, /* nojoliet */ 0, /* preferjoliet */ 0, /* uid; */ 0, /* gid; */ 0, /* mode */ "UTF-8" /* input_charset */ }; if (argc < 4) { usage(argv); return 1; } fd = fopen(argv[3], "w"); if (!fd) { err(1, "error opening output file"); } /* create the data source to accesss previous image */ result = iso_data_source_new_from_file(argv[1], &src); if (result < 0) { printf ("Error creating data source\n"); return 1; } /* create the image context */ result = iso_image_new("volume_id", &image); if (result < 0) { printf ("Error creating image\n"); return 1; } iso_image_set_msgs_severities(image, "NEVER", "ALL", ""); iso_tree_set_follow_symlinks(image, 0); iso_tree_set_ignore_hidden(image, 0); iso_tree_set_stop_on_error(image, 0); /* import previous image */ result = iso_image_import(image, src, &ropts, NULL); iso_data_source_unref(src); if (result < 0) { printf ("Error importing previous session %d\n", result); return 1; } /* add new dir */ result = iso_tree_add_dir_rec(image, iso_image_get_root(image), argv[2]); if (result < 0) { printf ("Error adding directory %d\n", result); return 1; } /* generate a new image with both previous and added contents */ result = iso_image_create(image, &opts, &burn_src); if (result < 0) { printf ("Cant create image, error %d\n", result); return 1; } while (burn_src->read(burn_src, buf, 2048) == 2048) { fwrite(buf, 1, 2048, fd); } fclose(fd); burn_src->free_data(burn_src); free(burn_src); iso_image_unref(image); return 0; }