sick

commit 7da5e6eeeaafa4f29f629e0fe3b4ea4ee7db5f02
parent 90ff47779b49abf0edadf12c08039f6af7866706
Author: z3bra <willyatmailoodotorg>
Date:   Sun May 15 19:34:39 +12000

extractmsg() copies the message only to the buffer

Diffstat:
sick.c
 | 
19
+++++++++++++++++++
1 file changed, 19 insertions(+), 0 deletions(-)
diff --git a/sick.c b/sick.c
@@ -19,6 +19,7 @@ enum {
 
 static void usage();
 static size_t bufferize(char **buf, FILE *fp);
+static size_t extractmsg(unsigned char *msg[], char *buf);
 static int createkeypair(const char *);
 static int sign(FILE *fp, FILE *key);
 
@@ -56,6 +57,24 @@ bufferize(char **buf, FILE *fp)
 	return len;
 }
 
+static size_t
+extractmsg(unsigned char **msg, char *buf)
+{
+	size_t len = 0;
+	char *sig;
+
+	sig = strstr(buf, SIGBEGIN);
+
+	if (sig == NULL)
+		return -1;
+
+	len = sig - buf;
+	*msg = malloc(len);
+	memcpy(*msg, buf, len);
+
+	return len;
+}
+
 /*
  * Creates a set of ed25519 key pairs on disk.
  */