X-Git-Url: http://git.ozlabs.org/?p=ccan;a=blobdiff_plain;f=ccan%2Frfc822%2Frfc822.h;h=e770115c5c6a03fb0e700542752e057ead80d76f;hp=1170c113e92a236f149e677d45024980574a8cdb;hb=6abc867fce8c3eba40eb26092d31e34b47dd9165;hpb=4be05500e605ccc0a68f1d3704c12ffd03cf2dfb;ds=sidebyside

diff --git a/ccan/rfc822/rfc822.h b/ccan/rfc822/rfc822.h
index 1170c113..e770115c 100644
--- a/ccan/rfc822/rfc822.h
+++ b/ccan/rfc822/rfc822.h
@@ -22,6 +22,9 @@ struct rfc822_msg;
  * callback is called with a string describing where the failure
  * occurred, which can be used to log a more useful error message.
  *
+ * Note that tal also has a default function which calls abort() on allocation
+ * failure: see tal_set_backend().
+ *
  * Example:
  *	static void my_handler(const char *str)
  *	{
@@ -53,15 +56,15 @@ static inline bool rfc822_iswsp(char c)
  * inconsistent, and the function will abort.  If the state of the
  * structure is valid it returns it unchanged.
  *
- * Returns the list head if the list is consistent, NULL if not (it
- * can never return NULL if @abortstr is set).
+ * Returns the @msg if the message is consistent, NULL if not (it can
+ * never return NULL if @abortstr is set).
  */
 struct rfc822_msg *rfc822_check(const struct rfc822_msg *msg,
 				const char *abortstr);
 
 /**
  * rfc822_start - start parsing a new rfc822 message
- * @ctx: talloc context to make allocations in
+ * @ctx: tal context to make allocations in (or talloc #ifdef TAL_USE_TALLOC)
  * @p: pointer to a buffer containing the message text
  * @len: length of the message text
  *
@@ -168,4 +171,22 @@ struct bytestring rfc822_header_raw_value(struct rfc822_msg *msg,
 struct bytestring rfc822_header_unfolded_value(struct rfc822_msg *msg,
 					       struct rfc822_header *hdr);
 
+/**
+ * rfc822_header_is - determine if a header is of a given name
+ * @msg: message
+ * @hdr: a header handle
+ * @name: header name
+ *
+ * This returns true if the header field @hdr has name @name (case
+ * insensitive), otherwise false.
+ */
+bool rfc822_header_is(struct rfc822_msg *msg, struct rfc822_header *hdr,
+		      const char *name);
+
+struct rfc822_header *rfc822_first_header_of_name(struct rfc822_msg *msg,
+						  const char *name);
+struct rfc822_header *rfc822_next_header_of_name(struct rfc822_msg *msg,
+						 struct rfc822_header *hdr,
+						 const char *name);
+
 #endif /* CCAN_RFC822_H_ */