63 lines
1.1 KiB
C
63 lines
1.1 KiB
C
/* See LICENSE file for copyright and license details. */
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include "../util.h"
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#include "../crypt.h"
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int
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cryptmain(int argc, char *argv[],
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struct crypt_ops *ops, uint8_t *md, size_t sz)
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{
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FILE *fp;
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int ret = EXIT_SUCCESS;
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if (argc == 0) {
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cryptsum(ops, stdin, "<stdin>", md);
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mdprint(md, "<stdin>", sz);
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} else {
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for (; argc > 0; argc--) {
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if((fp = fopen(*argv, "r")) == NULL) {
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weprintf("fopen %s:", *argv);
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ret = EXIT_FAILURE;
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continue;
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}
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if(cryptsum(ops, fp, *argv, md) == 1)
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ret = EXIT_FAILURE;
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else
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mdprint(md, *argv, sz);
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fclose(fp);
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argv++;
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}
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}
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return ret;
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}
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int
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cryptsum(struct crypt_ops *ops, FILE *fp, const char *f,
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uint8_t *md)
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{
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uint8_t buf[BUFSIZ];
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size_t n;
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ops->init(ops->s);
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while ((n = fread(buf, 1, sizeof(buf), fp)) > 0)
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ops->update(ops->s, buf, n);
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if (ferror(fp)) {
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weprintf("read error: %s:", f);
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return 1;
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}
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ops->sum(ops->s, md);
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return 0;
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}
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void
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mdprint(const uint8_t *md, const char *f, size_t len)
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{
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size_t i;
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for (i = 0; i < len; i++)
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printf("%02x", md[i]);
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printf(" %s\n", f);
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}
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