X-Git-Url: https://wimlib.net/git/?p=wimlib;a=blobdiff_plain;f=src%2Fsplit.c;h=78dc8ab74d0ec40d107a104bfb3d3e1e3cbdd778;hp=091fa3fecf124585a4364fd051ea83ace5830724;hb=30ba1eb06caca0b20a47d8dd75a117c82d730da7;hpb=9b9a502863318d6208da2818b1d522346e5eee9e diff --git a/src/split.c b/src/split.c index 091fa3fe..78dc8ab7 100644 --- a/src/split.c +++ b/src/split.c @@ -5,7 +5,7 @@ */ /* - * Copyright (C) 2012 Eric Biggers + * Copyright (C) 2012, 2013 Eric Biggers * * This file is part of wimlib, a library for working with WIM files. * @@ -23,56 +23,56 @@ * along with wimlib; if not, see http://www.gnu.org/licenses/. */ -#include "wimlib_internal.h" -#include "lookup_table.h" -#include "xml.h" -#include "io.h" +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif + +#include "wimlib.h" +#include "wimlib/endianness.h" +#include "wimlib/error.h" +#include "wimlib/file_io.h" +#include "wimlib/lookup_table.h" +#include "wimlib/metadata.h" +#include "wimlib/types.h" +#include "wimlib/write.h" +#include "wimlib/list.h" + +#include /* for open() */ +#include /* for close() */ struct split_args { WIMStruct *w; - char *swm_base_name; + tchar *swm_base_name; size_t swm_base_name_len; - const char *swm_suffix; + const tchar *swm_suffix; struct list_head lte_list; - int cur_part_number; - int write_flags; - long size_remaining; + int cur_part_number; + int write_flags; + long size_remaining; size_t part_size; wimlib_progress_func_t progress_func; union wimlib_progress_info progress; }; -static int finish_swm(WIMStruct *w, struct list_head *lte_list, - int write_flags, wimlib_progress_func_t progress_func) +static int +finish_swm(WIMStruct *w, struct list_head *lte_list, + int write_flags, wimlib_progress_func_t progress_func) { - off_t lookup_table_offset = ftello(w->out_fp); int ret; - struct lookup_table_entry *lte; - - list_for_each_entry(lte, lte_list, staging_list) { - ret = write_lookup_table_entry(lte, w->out_fp); - if (ret != 0) - return ret; - } - off_t xml_data_offset = ftello(w->out_fp); - - if (lookup_table_offset == -1 || xml_data_offset == -1) - return WIMLIB_ERR_WRITE; - w->hdr.lookup_table_res_entry.offset = lookup_table_offset; - w->hdr.lookup_table_res_entry.size = - xml_data_offset - lookup_table_offset; - w->hdr.lookup_table_res_entry.original_size = - xml_data_offset - lookup_table_offset; - w->hdr.lookup_table_res_entry.flags = WIM_RESHDR_FLAG_METADATA; + ret = write_lookup_table_from_stream_list(lte_list, w->out_fd, + &w->hdr.lookup_table_res_entry); + if (ret) + return ret; return finish_write(w, WIMLIB_ALL_IMAGES, write_flags | WIMLIB_WRITE_FLAG_NO_LOOKUP_TABLE, progress_func); } -static int copy_resource_to_swm(struct lookup_table_entry *lte, void *__args) +static int +copy_resource_to_swm(struct wim_lookup_table_entry *lte, void *_args) { - struct split_args *args = (struct split_args*)__args; + struct split_args *args = (struct split_args*)_args; WIMStruct *w = args->w; int ret; @@ -88,7 +88,7 @@ static int copy_resource_to_swm(struct lookup_table_entry *lte, void *__args) ret = finish_swm(w, &args->lte_list, args->write_flags, args->progress_func); - if (ret != 0) + if (ret) return ret; if (args->progress_func) { @@ -99,8 +99,8 @@ static int copy_resource_to_swm(struct lookup_table_entry *lte, void *__args) INIT_LIST_HEAD(&args->lte_list); args->cur_part_number++; - sprintf(args->swm_base_name + args->swm_base_name_len, "%d%s", - args->cur_part_number, args->swm_suffix); + tsprintf(args->swm_base_name + args->swm_base_name_len, T("%d%"TS), + args->cur_part_number, args->swm_suffix); w->hdr.part_number = args->cur_part_number; @@ -111,30 +111,31 @@ static int copy_resource_to_swm(struct lookup_table_entry *lte, void *__args) } ret = begin_write(w, args->swm_base_name, args->write_flags); - if (ret != 0) + if (ret) return ret; args->size_remaining = args->part_size; } args->size_remaining -= lte->resource_entry.size; args->progress.split.completed_bytes += lte->resource_entry.size; - list_add(<e->staging_list, &args->lte_list); + list_add_tail(<e->swm_stream_list, &args->lte_list); return copy_resource(lte, w); } -/* Splits the WIM file @wimfile into multiple parts prefixed by @swm_name with - * size at most @part_size. */ -WIMLIBAPI int wimlib_split(WIMStruct *w, const char *swm_name, - size_t part_size, int write_flags, - wimlib_progress_func_t progress_func) +/* Splits the WIM file @w into multiple parts prefixed by @swm_name with size at + * most @part_size bytes. */ +WIMLIBAPI int +wimlib_split(WIMStruct *w, const tchar *swm_name, + size_t part_size, int write_flags, + wimlib_progress_func_t progress_func) { int ret; struct wim_header hdr_save; struct split_args args; - const char *swm_suffix; + const tchar *swm_suffix; size_t swm_name_len; size_t swm_base_name_len; - if (!w || !swm_name || part_size == 0) + if (!swm_name || part_size == 0) return WIMLIB_ERR_INVALID_PARAM; if (w->hdr.total_parts != 1) @@ -142,26 +143,30 @@ WIMLIBAPI int wimlib_split(WIMStruct *w, const char *swm_name, write_flags &= WIMLIB_WRITE_MASK_PUBLIC; - swm_name_len = strlen(swm_name); - char swm_base_name[swm_name_len + 20]; + ret = wim_checksum_unhashed_streams(w); + if (ret) + return ret; + + swm_name_len = tstrlen(swm_name); + tchar swm_base_name[swm_name_len + 20]; memcpy(&hdr_save, &w->hdr, sizeof(struct wim_header)); w->hdr.flags |= WIM_HDR_FLAG_SPANNED; w->hdr.boot_idx = 0; randomize_byte_array(w->hdr.guid, WIM_GID_LEN); ret = begin_write(w, swm_name, write_flags); - if (ret != 0) + if (ret) goto out; - memcpy(swm_base_name, swm_name, swm_name_len + 1); + tmemcpy(swm_base_name, swm_name, swm_name_len + 1); - swm_suffix = strchr(swm_name, '.'); + swm_suffix = tstrchr(swm_name, T('.')); if (swm_suffix) { swm_base_name_len = swm_suffix - swm_name; } else { swm_base_name_len = swm_name_len; - swm_base_name[sizeof(swm_base_name) - 1] = '\0'; - swm_suffix = &swm_base_name[sizeof(swm_base_name) - 1]; + swm_base_name[ARRAY_LEN(swm_base_name) - 1] = T('\0'); + swm_suffix = &swm_base_name[ARRAY_LEN(swm_base_name) - 1]; } args.w = w; @@ -184,26 +189,27 @@ WIMLIBAPI int wimlib_split(WIMStruct *w, const char *swm_name, &args.progress); } - w->write_metadata = true; for (int i = 0; i < w->hdr.image_count; i++) { - struct lookup_table_entry *metadata_lte; - metadata_lte = w->image_metadata[i].metadata_lte; + struct wim_lookup_table_entry *metadata_lte; + metadata_lte = w->image_metadata[i]->metadata_lte; ret = copy_resource(metadata_lte, w); - if (ret != 0) + if (ret) goto out; args.size_remaining -= metadata_lte->resource_entry.size; args.progress.split.completed_bytes += metadata_lte->resource_entry.size; - list_add(&metadata_lte->staging_list, &args.lte_list); + /* Careful: The metadata lookup table entries must be added in + * order of the images. */ + list_add_tail(&metadata_lte->swm_stream_list, &args.lte_list); } - w->write_metadata = false; - ret = for_lookup_table_entry(w->lookup_table, - copy_resource_to_swm, &args); - if (ret != 0) + ret = for_lookup_table_entry_pos_sorted(w->lookup_table, + copy_resource_to_swm, + &args); + if (ret) goto out; ret = finish_swm(w, &args.lte_list, write_flags, progress_func); - if (ret != 0) + if (ret) goto out; if (progress_func) { @@ -212,39 +218,45 @@ WIMLIBAPI int wimlib_split(WIMStruct *w, const char *swm_name, } /* The swms are all ready now, except the total_parts and part_number - * fields in their headers are wrong (we don't know the total parts - * until they are all written). Fix them. */ + * fields in their headers are wrong (since we don't know the total + * parts until they are all written). Fix them. */ int total_parts = args.cur_part_number; for (int i = 1; i <= total_parts; i++) { - const char *part_name; + const tchar *part_name; + int part_fd; + le16 part_data[2]; + size_t bytes_written; + if (i == 1) { part_name = swm_name; } else { - sprintf(swm_base_name + swm_base_name_len, "%d%s", - i, swm_suffix); + tsprintf(swm_base_name + swm_base_name_len, T("%d%"TS), + i, swm_suffix); part_name = swm_base_name; } - FILE *fp = fopen(part_name, "r+b"); - if (!fp) { - ERROR_WITH_ERRNO("Failed to open `%s'", part_name); + part_fd = topen(part_name, O_WRONLY | O_BINARY); + if (part_fd == -1) { + ERROR_WITH_ERRNO("Failed to open `%"TS"'", part_name); ret = WIMLIB_ERR_OPEN; goto out; } - u8 buf[4]; - put_u16(&buf[0], i); - put_u16(&buf[2], total_parts); - - if (fseek(fp, 40, SEEK_SET) != 0 || - fwrite(buf, 1, sizeof(buf), fp) != sizeof(buf) - || fclose(fp) != 0) { - ERROR_WITH_ERRNO("Error overwriting header of `%s'", + part_data[0] = cpu_to_le16(i); + part_data[1] = cpu_to_le16(total_parts); + + bytes_written = full_pwrite(part_fd, part_data, + sizeof(part_data), 40); + ret = close(part_fd); + if (bytes_written != sizeof(part_data) || ret != 0) { + ERROR_WITH_ERRNO("Error updating header of `%"TS"'", part_name); ret = WIMLIB_ERR_WRITE; - break; + goto out; } } + ret = 0; out: + close_wim_writable(w); memcpy(&w->hdr, &hdr_save, sizeof(struct wim_header)); return ret; }