From b0863c5e31f6e96add76b383ae3f08b655715e33 Mon Sep 17 00:00:00 2001
From: Mark Spencer <markster@digium.com>
Date: Wed, 16 Feb 2005 03:46:00 +0000
Subject: [PATCH] Optimize vm storage (bug #3605)

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@5035 65c4cc65-6c06-0410-ace0-fbb531ad65f3
---
 apps/app_voicemail.c | 22 ++++++----------------
 1 file changed, 6 insertions(+), 16 deletions(-)

diff --git a/apps/app_voicemail.c b/apps/app_voicemail.c
index d39fbbd66c..07099e1da7 100755
--- a/apps/app_voicemail.c
+++ b/apps/app_voicemail.c
@@ -743,23 +743,15 @@ static int retrieve_file(char *dir, int msgnum)
 					goto yuck;
 				}
 				if (!strcmp(coltitle, "recording")) {
+					res = SQLGetData(stmt, x + 1, SQL_BINARY, NULL, 0, &colsize);
 					fdlen = colsize;
 					fd = open(full_fn, O_RDWR | O_TRUNC | O_CREAT, 0770);
 					if (fd > -1) {
-						/* Ugh, gotta fill it  so we can mmap */
-						char tmp[1024]="";
-						size_t left = 0, bytes = 0;
-						left = fdlen;
-						while(left) {
-							bytes = left;
-							if (bytes > sizeof(tmp))
-								bytes = sizeof(tmp);
-							if (write(fd, tmp, bytes) != bytes) {
-								close(fd); 
-								fd = -1;
-								break;
-							}
-							left -= bytes;
+						char tmp[1]="";
+						lseek(fd, fdlen - 1, SEEK_SET);
+						if (write(fd, tmp, 1) != 1) {
+							close(fd);
+							fd = -1;
 						}
 						if (fd > -1)
 							fdm = mmap(NULL, fdlen, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
@@ -772,8 +764,6 @@ static int retrieve_file(char *dir, int msgnum)
 							SQLFreeHandle (SQL_HANDLE_STMT, stmt);
 							goto yuck;
 						}
-						fdlen = colsize;
-						ftruncate(fd, fdlen);
 					}
 				} else {
 					res = SQLGetData(stmt, x + 1, SQL_CHAR, rowdata, sizeof(rowdata), NULL);
-- 
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