X-Git-Url: https://git.decadent.org.uk/gitweb/?p=nfs-utils.git;a=blobdiff_plain;f=support%2Fnsm%2Ffile.c;fp=support%2Fnsm%2Ffile.c;h=fc3241a1a4d9a10d128d22f3d352dcbc2445863d;hp=4dfc235dce5bc4f28562145420f236cc07123603;hb=a8449be2ab58d67d5028a280f94e661358b58e97;hpb=99979a6cf2f862d2365d27fa90fab4416c374903

diff --git a/support/nsm/file.c b/support/nsm/file.c
index 4dfc235..fc3241a 100644
--- a/support/nsm/file.c
+++ b/support/nsm/file.c
@@ -517,6 +517,33 @@ nsm_retire_monitored_hosts(void)
 	return count;
 }
 
+/*
+ * nsm_priv_to_hex - convert a NSM private cookie to a hex string.
+ *
+ * @priv: buffer holding the binary NSM private cookie
+ * @buf: output buffer for NULL terminated hex string
+ * @buflen: size of output buffer
+ *
+ * Returns the length of the resulting string or 0 on error
+ */
+size_t
+nsm_priv_to_hex(const char *priv, char *buf, const size_t buflen)
+{
+	int i, len;
+	size_t remaining = buflen;
+
+	for (i = 0; i < SM_PRIV_SIZE; i++) {
+		len = snprintf(buf, remaining, "%02x",
+				(unsigned int)(0xff & priv[i]));
+		if (error_check(len, remaining))
+			return 0;
+		buf += len;
+		remaining -= (size_t)len;
+	}
+
+	return buflen - remaining;
+}
+
 /*
  * Returns the length in bytes of the created record.
  */
@@ -526,8 +553,8 @@ nsm_create_monitor_record(char *buf, const size_t buflen,
 		const struct sockaddr *sap, const struct mon *m)
 {
 	const struct sockaddr_in *sin = (const struct sockaddr_in *)sap;
-	size_t remaining = buflen;
-	int i, len;
+	size_t hexlen, remaining = buflen;
+	int len;
 
 	len = snprintf(buf, remaining, "%08x %08x %08x %08x ",
 			(unsigned int)sin->sin_addr.s_addr,
@@ -539,14 +566,11 @@ nsm_create_monitor_record(char *buf, const size_t buflen,
 	buf += len;
 	remaining -= (size_t)len;
 
-	for (i = 0; i < SM_PRIV_SIZE; i++) {
-		len = snprintf(buf, remaining, "%02x",
-				(unsigned int)(0xff & m->priv[i]));
-		if (error_check(len, remaining))
-			return 0;
-		buf += len;
-		remaining -= (size_t)len;
-	}
+	hexlen = nsm_priv_to_hex(m->priv, buf, remaining);
+	if (hexlen == 0)
+		return 0;
+	buf += hexlen;
+	remaining -= hexlen;
 
 	len = snprintf(buf, remaining, " %s %s\n",
 			m->mon_id.mon_name, m->mon_id.my_id.my_name);