From 264bfb71210aa8b063cd07c98e96415a491b87cf Mon Sep 17 00:00:00 2001
From: Malcolm Davenport <malcolmd@digium.com>
Date: Thu, 18 Mar 2004 22:49:06 +0000
Subject: [PATCH] Bug # 1247: Add patch to specify minimum vmail length and
 discard that which does not meet the minimum

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@2459 65c4cc65-6c06-0410-ace0-fbb531ad65f3
---
 apps/app_voicemail.c          | 15 +++++++++++++++
 configs/voicemail.conf.sample |  2 ++
 2 files changed, 17 insertions(+)

diff --git a/apps/app_voicemail.c b/apps/app_voicemail.c
index ad3983c7b2..f4e19ef6fd 100755
--- a/apps/app_voicemail.c
+++ b/apps/app_voicemail.c
@@ -190,6 +190,7 @@ static char serveremail[80];
 static char mailcmd[160];	/* Configurable mail cmd */
 
 static char vmfmts[80];
+static int vmminmessage;
 static int vmmaxmessage;
 static int maxgreet;
 static int skipms;
@@ -1484,6 +1485,10 @@ static int leave_voicemail(struct ast_channel *chan, char *ext, int silent, int
 					} else
 						close(fd);
 				}
+				if (end - start < vmminmessage) {
+					ast_filedelete(fn, NULL);
+					goto leave_vm_out;
+				}
 				stringp = fmt;
 				strsep(&stringp, "|");
 				/* Send e-mail if applicable */
@@ -1510,6 +1515,7 @@ static int leave_voicemail(struct ast_channel *chan, char *ext, int silent, int
 			}
 		} else
 			ast_log(LOG_WARNING, "No format for saving voicemail?\n");					
+leave_vm_out:
 		free_user(vmu);
 	} else {
 		ast_log(LOG_WARNING, "No entry in voicemail config file for '%s'\n", ext);
@@ -3242,6 +3248,15 @@ static int load_config(void)
 				ast_log(LOG_WARNING, "Invalid max message time length\n");
 			}
 		}
+
+		vmminmessage = 0;
+		if ((s = ast_variable_retrieve(cfg, "general", "minmessage"))) {
+			if (sscanf(s, "%d", &x) == 1) {
+				vmminmessage = x;
+			} else {
+				ast_log(LOG_WARNING, "Invalid min message time length\n");
+			}
+		}
 		fmt = ast_variable_retrieve(cfg, "general", "format");
 		if (!fmt)
 			fmt = "wav";	
diff --git a/configs/voicemail.conf.sample b/configs/voicemail.conf.sample
index 50281e3983..8e43826d65 100755
--- a/configs/voicemail.conf.sample
+++ b/configs/voicemail.conf.sample
@@ -12,6 +12,8 @@ serveremail=asterisk
 attach=yes
 ; Maximum length of a voicemail message
 ;maxmessage=180
+; Minimum length of a voicemail message
+;minmessage=3
 ; Maximum length of greetings
 ;maxgreet=60
 ; How many miliseconds to skip forward/back when rew/ff in message playback