mirror of
https://github.com/guanzhi/GmSSL.git
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64 lines
1.1 KiB
C
64 lines
1.1 KiB
C
/*
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* Copyright 2014-2023 The GmSSL Project. All Rights Reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the License); you may
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* not use this file except in compliance with the License.
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*/
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#include <errno.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <sys/stat.h>
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#include <gmssl/error.h>
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int file_size(FILE *fp, size_t *size)
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{
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int fd;
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struct stat st;
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#ifdef WIN32
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fd = _fileno(fp);
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#else
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fd = fileno(fp);
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#endif
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if (fstat(fd, &st) < 0) {
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error_print();
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return -1;
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}
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*size = st.st_size;
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return 1;
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}
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int file_read_all(const char *file, uint8_t **out, size_t *outlen)
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{
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int ret = -1;
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FILE *fp = NULL;
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size_t fsize;
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uint8_t *buf = NULL;
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if (!(fp = fopen(file, "rb"))
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|| file_size(fp, &fsize) != 1
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|| (buf = malloc(fsize)) == NULL) {
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error_print();
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goto end;
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}
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if (fread(buf, 1, fsize, fp) != fsize) {
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error_print();
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goto end;
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}
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*out = buf;
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*outlen = fsize;
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buf = NULL;
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ret = 1;
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end:
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if (fp) fclose(fp);
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if (buf) free(buf);
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return ret;
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}
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