X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=secnet.git;a=blobdiff_plain;f=sha1.c;h=a78345a55f6378dc51d1bb67b3e2dab4eb8d404f;hp=a0f26e8be6facdadfed882d1cf4dd65fd6da9523;hb=HEAD;hpb=babd74ec57f6b3a6f6709d10ec725532deb3ed66

diff --git a/sha1.c b/sha1.c
index a0f26e8..a78345a 100644
--- a/sha1.c
+++ b/sha1.c
@@ -2,6 +2,7 @@
 SHA-1 in C
 By Steve Reid <sreid@sea-to-sky.net>
 100% Public Domain
+[I interpet this as a blanket permision -iwj.]
 
 Note: parts of this file have been removed or modified to work in secnet.
 Instead of using this file in new projects, I suggest you use the
@@ -59,7 +60,9 @@ By Saul Kravitz <Saul.Kravitz@celera.com>
 Still 100% PD
 Modified to run on Compaq Alpha hardware.  
 
-
+-----------------
+(Further modifications as part of secnet.  See git history for full details.
+ - Ian Jackson et al)
 */
 
 /*
@@ -75,6 +78,7 @@ A million repetitions of "a"
 /* #define SHA1HANDSOFF  */
 
 #include "secnet.h"
+#include "util.h"
 #include <stdio.h>
 #include <string.h>
 
@@ -284,14 +288,11 @@ unsigned char finalcount[8];
 /*************************************************************/
 
 /* Everything below here is the interface to secnet */
-static void *sha1_init(void)
+static void sha1_init(void *sst)
 {
-    SHA1_CTX *ctx;
+    SHA1_CTX *ctx=sst;
 
-    ctx=safe_malloc(sizeof(*ctx),"sha1_init");
     SHA1Init(ctx);
-
-    return ctx;
 }
 
 static void sha1_update(void *sst, const void *buf, int32_t len)
@@ -306,7 +307,6 @@ static void sha1_final(void *sst, uint8_t *digest)
     SHA1_CTX *ctx=sst;
 
     SHA1Final(digest,ctx);
-    free(ctx);
 }
 
 struct sha1 {
@@ -314,10 +314,11 @@ struct sha1 {
     struct hash_if ops;
 };
 
+static struct sha1 st[1];
+struct hash_if *const sha1_hash_if = &st->ops;
+
 void sha1_module(dict_t *dict)
 {
-    struct sha1 *st;
-    void *ctx;
     cstring_t testinput="abcdbcdecdefdefgefghfghigh"
 	"ijhijkijkljklmklmnlmnomnopnopq";
     uint8_t expected[20]=
@@ -329,21 +330,19 @@ void sha1_module(dict_t *dict)
     uint8_t digest[20];
     int i;
 
-    st=safe_malloc(sizeof(*st),"sha1_module");
     st->cl.description="sha1";
     st->cl.type=CL_HASH;
     st->cl.apply=NULL;
     st->cl.interface=&st->ops;
-    st->ops.len=20;
+    st->ops.hlen=20;
+    st->ops.slen=sizeof(SHA1_CTX);
     st->ops.init=sha1_init;
     st->ops.update=sha1_update;
     st->ops.final=sha1_final;
 
     dict_add(dict,"sha1",new_closure(&st->cl));
 
-    ctx=sha1_init();
-    sha1_update(ctx,testinput,strlen(testinput));
-    sha1_final(ctx,digest);
+    hash_hash(&st->ops,testinput,strlen(testinput),digest);
     for (i=0; i<20; i++) {
 	if (digest[i]!=expected[i]) {
 	    fatal("sha1 module failed self-test");