From 6d99be7149ce15e10460f80a218b0f4333b8c4be Mon Sep 17 00:00:00 2001
From: Dan Winship <danw@src.gnome.org>
Date: Thu, 23 Mar 2000 16:22:29 +0000
Subject: Function to read one line of any size from a stream and return it in

	* camel-stream-buffer.c (camel_stream_buffer_read_line): Function
	to read one line of any size from a stream and return it in
	allocated memory.

Also add camel-stream-buffer.h to camel.h and CamelStreamBuffer to
camel-types.h.

svn path=/trunk/; revision=2152
---
 camel/ChangeLog             |  6 ++++++
 camel/camel-stream-buffer.c | 43 +++++++++++++++++++++++++++++++++++++++++++
 camel/camel-stream-buffer.h |  6 ++++--
 camel/camel-types.h         |  1 +
 camel/camel.h               |  1 +
 5 files changed, 55 insertions(+), 2 deletions(-)

diff --git a/camel/ChangeLog b/camel/ChangeLog
index 0c11050043..3bb7c1529b 100644
--- a/camel/ChangeLog
+++ b/camel/ChangeLog
@@ -1,3 +1,9 @@
+2000-03-23  Dan Winship  <danw@helixcode.com>
+
+	* camel-stream-buffer.c (camel_stream_buffer_read_line): Function
+	to read one line of any size from a stream and return it in
+	allocated memory.
+
 2000-03-22  Dan Winship  <danw@helixcode.com>
 
 	* camel-service.c (camel_service_query_auth_types): New function
diff --git a/camel/camel-stream-buffer.c b/camel/camel-stream-buffer.c
index cb4f0d4831..8dbe50a133 100644
--- a/camel/camel-stream-buffer.c
+++ b/camel/camel-stream-buffer.c
@@ -452,3 +452,46 @@ int camel_stream_buffer_gets(CamelStreamBuffer *sbf, char *buf, int max)
 
 	return outptr-buf;
 }
+
+/**
+ * camel_stream_buffer_read_line: read a complete line from the stream
+ * @sbf: A CamelStreamBuffer
+ *
+ * This function reads a complete newline-terminated line from the stream
+ * and returns it in allocated memory. The trailing newline (and carriage
+ * return if any) are not included in the returned string.
+ *
+ * Return value: the line read, which the caller must free when done with,
+ * or NULL on eof or error.
+ **/
+char *
+camel_stream_buffer_read_line (CamelStreamBuffer *sbf)
+{
+	char *buf, *p;
+	int bufsiz, nread;
+
+	bufsiz = 80;
+	p = buf = g_malloc (bufsiz);
+
+	while (1) {
+		nread = camel_stream_buffer_gets (sbf, p, bufsiz - (p - buf));
+		if (nread == 0) {
+			g_free (buf);
+			return NULL;
+		}
+
+		p += nread;
+		if (*(p - 1) == '\n')
+			break;
+
+		nread = p - buf;
+		bufsiz *= 2;
+		buf = g_realloc (buf, bufsiz);
+		p = buf + nread;
+	}
+
+	*--p = '\0';
+	if (*(p - 1) == '\r')
+		*--p = '\0';
+	return buf;
+}
diff --git a/camel/camel-stream-buffer.h b/camel/camel-stream-buffer.h
index c4b7e4b2e7..967c33e553 100644
--- a/camel/camel-stream-buffer.h
+++ b/camel/camel-stream-buffer.h
@@ -53,7 +53,7 @@ typedef enum
 	CAMEL_STREAM_BUFFER_MODE = 0x80
 } CamelStreamBufferMode;
 
-typedef struct 
+struct _CamelStreamBuffer
 {
 	CamelStream parent_object;
 
@@ -67,7 +67,7 @@ typedef struct
 
 	CamelStreamBufferMode mode;
 	unsigned int flags;	/* internal flags */
-} CamelStreamBuffer;
+};
 
 
 
@@ -95,6 +95,8 @@ CamelStream *camel_stream_buffer_set_vbuf (CamelStreamBuffer *b, CamelStreamBuff
 /* read a line of characters */
 int camel_stream_buffer_gets(CamelStreamBuffer *b, char *buf, int max);
 
+char *camel_stream_buffer_read_line (CamelStreamBuffer *sbf);
+
 #ifdef __cplusplus
 }
 #endif /* __cplusplus */
diff --git a/camel/camel-types.h b/camel/camel-types.h
index c070404e95..924c51db6d 100644
--- a/camel/camel-types.h
+++ b/camel/camel-types.h
@@ -45,6 +45,7 @@ typedef struct _CamelSimpleDataWrapper CamelSimpleDataWrapper;
 typedef struct _CamelSimpleDataWrapperStream CamelSimpleDataWrapperStream;
 typedef struct _CamelStore CamelStore;
 typedef struct _CamelStream CamelStream;
+typedef struct _CamelStreamBuffer CamelStreamBuffer;
 typedef struct _CamelStreamBufferedFs CamelStreamBufferedFs;
 typedef struct _CamelStreamDataWrapper CamelStreamDataWrapper;
 typedef struct _CamelStreamFs CamelStreamFs;
diff --git a/camel/camel.h b/camel/camel.h
index 382326f2e3..5145b58348 100644
--- a/camel/camel.h
+++ b/camel/camel.h
@@ -53,6 +53,7 @@ extern "C" {
 #include <camel/camel-session.h>
 #include <camel/camel-store.h>
 #include <camel/camel-stream.h>
+#include <camel/camel-stream-buffer.h>
 #include <camel/camel-stream-fs.h>
 #include <camel/camel-stream-mem.h>
 #include <camel/camel-thread-proxy.h>
-- 
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