sha512-256sum.c - sbase - suckless unix tools
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       ---
       sha512-256sum.c (810B)
       ---
            1 /* See LICENSE file for copyright and license details. */
            2 #include <stdint.h>
            3 #include <stdio.h>
            4 
            5 #include "crypt.h"
            6 #include "sha512-256.h"
            7 #include "util.h"
            8 
            9 static struct sha512_256 s;
           10 struct crypt_ops sha512_256_ops = {
           11         sha512_256_init,
           12         sha512_256_update,
           13         sha512_256_sum,
           14         &s,
           15 };
           16 
           17 static void
           18 usage(void)
           19 {
           20         eprintf("usage: %s [-c] [file ...]\n", argv0);
           21 }
           22 
           23 int
           24 main(int argc, char *argv[])
           25 {
           26         int ret = 0, (*cryptfunc)(int, char **, struct crypt_ops *, uint8_t *, size_t) = cryptmain;
           27         uint8_t md[SHA512_256_DIGEST_LENGTH];
           28 
           29         ARGBEGIN {
           30         case 'b':
           31         case 't':
           32                 /* ignore */
           33                 break;
           34         case 'c':
           35                 cryptfunc = cryptcheck;
           36                 break;
           37         default:
           38                 usage();
           39         } ARGEND
           40 
           41         ret |= cryptfunc(argc, argv, &sha512_256_ops, md, sizeof(md));
           42         ret |= fshut(stdin, "<stdin>") | fshut(stdout, "<stdout>");
           43 
           44         return ret;
           45 }