X-Git-Url: https://pd.if.org/git/?a=blobdiff_plain;f=zpm-hash.c;h=f3578c76a7068a6a7b072709c261486ab715edb8;hb=4efa2cf91ddcce727fd66be55f504510b6400b8b;hp=31791b184a197fd3f16c8b55e0b9b69aaae22616;hpb=adbbf2f54cfd5254ed439e17d2fa21d22ed072fd;p=zpackage

diff --git a/zpm-hash.c b/zpm-hash.c
index 31791b1..f3578c7 100644
--- a/zpm-hash.c
+++ b/zpm-hash.c
@@ -1,11 +1,39 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include "zpm.h"
+#include "sha256.h"
 
 int main(int ac, char **av){
 	int rv;
 	char hash[65];
 
+	/*
+	 * hash stdin
+	 */
+	if (ac == 1 || (ac == 2 && !strcmp(av[1], "-"))) {
+		hash_state md;
+		unsigned char buf[4096];
+		size_t bytes;
+		unsigned char tmp[32];
+		int j;
+
+		sha256_init(&md);
+		do {
+			bytes = fread(buf, 1, sizeof buf, stdin);
+			sha256_process(&md, buf, bytes);
+		} while (bytes && !feof(stdin));
+		if (ferror(stdin)) {
+			exit(1);
+		}
+		sha256_done(&md, tmp);
+		for (j=0;j<32;j++) {
+			sprintf(hash+j*2, "%02x", (unsigned)tmp[j]);
+		}
+		hash[64] = 0;
+		printf("%s\n", hash);
+		return 0;
+	}
+
 	if (ac < 2) {
 		fprintf(stderr, "usage: path\n");
 		return 1;