initial release

src/digest.c

@@ -0,0 +1,60 @@
+/*
+ * digest.c, SJ
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <syslog.h>
+#include <piler.h>
+#include <openssl/evp.h>
+
+
+int make_body_digest(struct session_data *sdata){
+   int i=0, n, fd;
+   char *p, *body=NULL;
+   unsigned char buf[MAXBUFSIZE];
+
+   memset(sdata->bodydigest, 0, 2*DIGEST_LENGTH+1);
+   SHA256_Init(&(sdata->context));
+
+   fd = open(sdata->ttmpfile, O_RDONLY);
+   if(fd == -1) return -1;
+
+   while((n = read(fd, buf, MAXBUFSIZE)) > 0){
+      body = (char *)&buf[0];
+
+      i++;
+      if(i == 1){
+         p = strstr((char*)buf, "\n\n");
+         if(p){
+            body = p+2;
+            n = strlen(body);
+         } else {
+            p = strstr((char*)buf, "\n\r\n");
+            if(p){
+               body = p+3;
+               n = strlen(body);
+            }
+         }
+      }
+
+      SHA256_Update(&(sdata->context), body, n);
+
+   }
+
+   close(fd);
+
+   SHA256_Final(sdata->md, &(sdata->context));
+
+   for(i=0;i<DIGEST_LENGTH;i++)
+      snprintf(sdata->bodydigest + i*2, 2*DIGEST_LENGTH, "%02x", sdata->md[i]);
+
+   return 0;
+}
+
+