From: Arran Cudbard-Bell <a.cudbardb@freeradius.org>
Date: Sun, 3 Dec 2017 01:07:29 +0000 (+0000)
Subject: Peek at strerror without poping it
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6b40099b806dfabcde18ef2c36bc42124fe00697;p=thirdparty%2Ffreeradius-server.git

Peek at strerror without poping it
---

diff --git a/src/include/fr_log.h b/src/include/fr_log.h
index 60904add549..82c8631e2b2 100644
--- a/src/include/fr_log.h
+++ b/src/include/fr_log.h
@@ -42,6 +42,7 @@ void		fr_strerror_printf(char const *, ...) CC_HINT(format (printf, 1, 2));
 void		fr_strerror_printf_push(char const *fmt, ...)  CC_HINT(format (printf, 1, 2));
 
 char const	*fr_strerror(void);
+char const	*fr_strerror_peek(void);
 char const	*fr_strerror_pop(void);
 
 void		fr_perror(char const *, ...) CC_HINT(format (printf, 1, 2));
diff --git a/src/lib/util/strerror.c b/src/lib/util/strerror.c
index 0872391356f..1e5010bd18f 100644
--- a/src/lib/util/strerror.c
+++ b/src/lib/util/strerror.c
@@ -229,6 +229,24 @@ char const *fr_strerror(void)
 	return entry->msg;
 }
 
+/** Get the last library error
+ *
+ * @return library error or zero length string.
+ */
+char const *fr_strerror_peek(void)
+{
+	fr_log_buffer_t		*buffer;
+	fr_log_entry_t		*entry;
+
+	buffer = fr_strerror_buffer;
+	if (!buffer) return "";
+
+	entry = fr_cursor_head(&buffer->cursor);
+	if (!entry) return "";
+
+	return entry->msg;
+}
+
 /** Pop the last library error
  *
  * Return the first message added to the error stack using #fr_strerror_printf