mirror of
https://github.com/open-quantum-safe/liboqs.git
synced 2025-11-04 00:02:35 -05:00
72 lines
1.7 KiB
C
72 lines
1.7 KiB
C
// SPDX-License-Identifier: MIT
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/stat.h>
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#include <sys/stat.h>
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#define OQS_STORE_DIR "tmp"
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#define OQS_STORE_PREFIX "/oqs-temp-file-"
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#define MAXPATHLEN 128
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#if (defined(_WIN32) || defined(__WIN32__))
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#include <windows.h>
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#endif
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static OQS_STATUS oqs_fstore_init(void) {
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#ifndef _WIN32
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return mkdir(OQS_STORE_DIR, 0755);
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#else
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if (CreateDirectory(OQS_STORE_DIR, NULL)) {
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return OQS_SUCCESS;
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} else {
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return OQS_ERROR;
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}
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#endif
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}
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static OQS_STATUS oqs_fstore(const char *fname, const char *mname, uint8_t *data, size_t len) {
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char fpath[MAXPATHLEN];
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strcpy(fpath, OQS_STORE_DIR);
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strcat(fpath, OQS_STORE_PREFIX);
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strcat(fpath, mname);
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strcat(fpath, fname);
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FILE *fp = fopen(fpath, "wb");
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if (!fp) {
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fprintf(stderr, "Couldn't open %s for writing.\n", fpath);
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return OQS_ERROR;
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}
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fwrite(data, len, 1, fp);
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fclose(fp);
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return OQS_SUCCESS;
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}
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static OQS_STATUS oqs_fload(const char *fname, const char *mname, uint8_t *data, size_t len, size_t *rcvd) {
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size_t len_read = 0, r = 0;
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uint8_t *dr = NULL;
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char fpath[MAXPATHLEN];
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strcpy(fpath, OQS_STORE_DIR);
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strcat(fpath, OQS_STORE_PREFIX);
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strcat(fpath, mname);
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strcat(fpath, fname);
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FILE *fp = fopen(fpath, "rb");
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if (!fp) {
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fprintf(stderr, "Couldn't open %s for reading.\n", fpath);
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return OQS_ERROR;
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}
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do { // assume some OSs don't deliver all data in one go...
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dr = (uint8_t *)(data + len_read);
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r = fread(dr, 1, len - len_read, fp);
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len_read += r;
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} while (r > 0);
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*rcvd = len_read;
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if (len_read <= 0) {
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fprintf(stderr, "Error reading data (operations called in proper sequence?). Expecting %zu. Exiting.\n", len);
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return OQS_ERROR;
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}
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fclose(fp);
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return OQS_SUCCESS;
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}
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