# HG changeset patch
# User Timo Sirainen <tss@iki.fi>
# Date 1068324427 -7200
# Node ID d9d05fc3c90574ec3bfd12da1409d6b299aaafa1
# Parent  c6d327242fa61241ffd7214f3a845bed68f44e48
message_send()'s skip parameter was buggy with messages having CRLF.

diff -r c6d327242fa6 -r d9d05fc3c905 src/imap/imap-fetch-body-section.c
--- a/src/imap/imap-fetch-body-section.c	Sat Nov 08 20:17:15 2003 +0200
+++ b/src/imap/imap-fetch-body-section.c	Sat Nov 08 22:47:07 2003 +0200
@@ -305,7 +305,7 @@
 	const void *data;
 	size_t data_size;
 	uoff_t start_offset, send_size;
-	int failed;
+	int failed, skip_cr;
 
 	/* HEADER, MIME, HEADER.FIELDS (list), HEADER.FIELDS.NOT (list) */
 
@@ -316,8 +316,12 @@
 				      ctx->prefix, send_size);
 		if (o_stream_send_str(ctx->output, str) < 0)
 			return FALSE;
+
+		skip_cr = seek_partial(ctx->select_counter, mail->uid,
+				       &partial, input, 0, body->skip);
+
 		return message_send(ctx->output, input, size,
-				    body->skip, send_size, NULL,
+				    skip_cr, send_size, NULL,
 				    !mail->has_no_nuls) >= 0;
 	}
 
diff -r c6d327242fa6 -r d9d05fc3c905 src/lib-mail/message-send.c
--- a/src/lib-mail/message-send.c	Sat Nov 08 20:17:15 2003 +0200
+++ b/src/lib-mail/message-send.c	Sat Nov 08 22:47:07 2003 +0200
@@ -9,41 +9,30 @@
 
 off_t message_send(struct ostream *output, struct istream *input,
 		   const struct message_size *msg_size,
-		   uoff_t virtual_skip, uoff_t max_virtual_size, int *last_cr,
+		   int cr_skipped, uoff_t max_virtual_size, int *last_cr,
 		   int fix_nuls)
 {
 	const unsigned char *msg;
-	uoff_t old_limit, limit;
 	size_t i, size;
 	off_t ret;
-	int cr_skipped;
 	unsigned char add;
 
 	if (last_cr != NULL)
 		*last_cr = -1;
 
-	if (msg_size->physical_size == 0 ||
-	    virtual_skip >= msg_size->virtual_size)
+	if (msg_size->physical_size == 0)
 		return 0;
 
-	if (max_virtual_size > msg_size->virtual_size - virtual_skip)
-		max_virtual_size = msg_size->virtual_size - virtual_skip;
-
 	if (msg_size->physical_size == msg_size->virtual_size && !fix_nuls) {
 		/* no need to kludge with CRs, we can use sendfile() */
-		i_stream_skip(input, virtual_skip);
-
-		old_limit = input->v_limit;
-		limit = input->v_offset + max_virtual_size;
-		i_stream_set_read_limit(input, I_MIN(limit, old_limit));
+		input = i_stream_create_limit(default_pool, input,
+					      input->v_offset,
+					      max_virtual_size);
 		ret = o_stream_send_istream(output, input);
-		i_stream_set_read_limit(input, old_limit);
-
+		i_stream_unref(input);
 		return ret;
 	}
 
-	message_skip_virtual(input, virtual_skip, NULL, 0, &cr_skipped);
-
 	/* go through the message data and insert CRs where needed.  */
 	ret = 0;
 	while (max_virtual_size > 0 &&
@@ -53,8 +42,8 @@
 			max_virtual_size--;
 
 			if (msg[i] == '\n') {
-				if ((i == 0 && !cr_skipped) ||
-				    (i > 0 && msg[i-1] != '\r')) {
+				if ((i > 0 && msg[i-1] != '\r') ||
+				    (i == 0 && !cr_skipped)) {
 					/* missing CR */
 					add = '\r';
 					break;
diff -r c6d327242fa6 -r d9d05fc3c905 src/lib-mail/message-send.h
--- a/src/lib-mail/message-send.h	Sat Nov 08 20:17:15 2003 +0200
+++ b/src/lib-mail/message-send.h	Sat Nov 08 22:47:07 2003 +0200
@@ -4,13 +4,12 @@
 struct message_size;
 
 /* Send message to client inserting CRs if needed. Only max_virtual_size
-   bytes if sent (relative to virtual_skip), if you want it unlimited,
-   use (uoff_t)-1. Remember that if input begins with LF, CR is inserted
-   before it unless virtual_skip = 1. last_cr is set to 1, 0 or -1 if not
-   known. Returns number of bytes sent, or -1 if error. */
+   bytes are sent. If cr_skipped is FALSE and input begins with LF, it's
+   treated as CRLF. last_cr is set to 1, 0 or -1 if not known. Returns number
+   of bytes sent, or -1 if error. */
 off_t message_send(struct ostream *output, struct istream *input,
 		   const struct message_size *msg_size,
-		   uoff_t virtual_skip, uoff_t max_virtual_size, int *last_cr,
+		   int cr_skipped, uoff_t max_virtual_size, int *last_cr,
 		   int fix_nuls);
 
 /* Skip number of virtual bytes from putfer. msg_size is updated if it's not