57 lines
1.4 KiB
C
57 lines
1.4 KiB
C
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/* xdelta3 - delta compression tools and library
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Copyright 2016 Joshua MacDonald
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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#define NOT_MAIN 1
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#include "xdelta3.h"
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#include "xdelta3.c"
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static int read_whole_file(const char *name,
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uint8_t **buf_ptr,
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size_t *buf_len) {
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main_file file;
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int ret;
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xoff_t len;
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usize_t nread;
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main_file_init(&file);
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file.filename = name;
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ret = main_file_open(&file, name, XO_READ);
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if (ret != 0) {
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fprintf(stderr, "open failed\n");
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goto exit;
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}
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ret = main_file_stat(&file, &len);
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if (ret != 0) {
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fprintf(stderr, "stat failed\n");
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goto exit;
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}
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(*buf_len) = (size_t)len;
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(*buf_ptr) = (uint8_t*) main_malloc(*buf_len);
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ret = main_file_read(&file, *buf_ptr, *buf_len, &nread,
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"read failed");
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if (ret == 0 && *buf_len == nread) {
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ret = 0;
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} else {
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fprintf(stderr, "invalid read\n");
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ret = XD3_INTERNAL;
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}
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exit:
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main_file_cleanup(&file);
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return ret;
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}
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