From 5596daacb1b8ac8bd396882abf827887cae4b1c9 Mon Sep 17 00:00:00 2001
From: Matthias Schiffer <mschiffer@universe-factory.net>
Date: Fri, 15 Oct 2010 05:43:25 +0200
Subject: multicat: improve signal and EOF handling

---
 multicat.c | 44 ++++++++++++++++++++++++++++++++++++--------
 1 file changed, 36 insertions(+), 8 deletions(-)

(limited to 'multicat.c')

diff --git a/multicat.c b/multicat.c
index de62418..4983a13 100644
--- a/multicat.c
+++ b/multicat.c
@@ -42,7 +42,7 @@
 /*****************************************************************************
  * Local declarations
  *****************************************************************************/
-static int i_input_fd, i_output_fd;
+static int i_input_fd = -1, i_output_fd;
 FILE *p_input_aux, *p_output_aux;
 static uint16_t i_pcr_pid = 0;
 static bool b_overwrite_ssrc = false;
@@ -59,11 +59,15 @@ void (*pf_Skip)( size_t i_len, int i_nb_chunks );
 ssize_t (*pf_Read)( void *p_buf, size_t i_len );
 ssize_t (*pf_Write)( const void *p_buf, size_t i_len );
 
+extern int i_verbose;
+
 static void usage(void)
 {
-    msg_Raw( NULL, "Usage: multicat [-i <RT priority>] [-t <ttl>] [-p <PCR PID>] [-s <chunks>] [-n <chunks>] [-d <time>] [-a] [-S <SSRC IP>] [-u] [-U] [-P] [-m <payload size>] <input item> <output item>" );
+    msg_Raw( NULL, "Usage: multicat [-v] [-i <RT priority>] [-t <ttl>] [-p <PCR PID>] [-s <chunks>] [-n <chunks>] [-d <time>] [-a] [-S <SSRC IP>] [-u] [-U] [-P] [-m <payload size>] <input item> <output item>" );
     msg_Raw( NULL, "    item format: <file path | device path | FIFO path | network host>" );
     msg_Raw( NULL, "    host format: [<connect addr>[:<connect port>]][@[<bind addr][:<bind port>]]" );
+    msg_Raw( NULL, "    -v: enable verbose output" );
+    msg_Raw( NULL, "    -vv: more verbose output" );
     msg_Raw( NULL, "    -p: overwrite or create RTP timestamps using PCR PID (MPEG-2/TS)" );
     msg_Raw( NULL, "    -s: skip the first N chunks of payload" );
     msg_Raw( NULL, "    -n: exit after playing N chunks of payload" );
@@ -83,6 +87,9 @@ static void usage(void)
 static void SigHandler( int i_signal )
 {
     b_die = true;
+
+    if ( i_input_fd >= 0 )
+        close(i_input_fd);
 }
 
 /*****************************************************************************
@@ -100,8 +107,11 @@ static ssize_t udp_Read( void *p_buf, size_t i_len )
     ssize_t i_ret;
     if ( (i_ret = recv( i_input_fd, p_buf, i_len, 0 )) < 0 )
     {
-        msg_Err( NULL, "recv error (%s)", strerror(errno) );
-        b_die = true;
+        if ( !b_die )
+        {
+            msg_Err( NULL, "recv error (%s)", strerror(errno) );
+            b_die = true;
+        }
         return 0;
     }
 
@@ -137,7 +147,16 @@ static ssize_t stream_Read( void *p_buf, size_t i_len )
     ssize_t i_ret;
     if ( (i_ret = read( i_input_fd, p_buf, i_len )) < 0 )
     {
-        msg_Err( NULL, "read error (%s)", strerror(errno) );
+        if ( !b_die )
+        {
+            msg_Err( NULL, "read error (%s)", strerror(errno) );
+            b_die = true;
+        }
+        return 0;
+    }
+    if ( i_ret == 0 )
+    {
+        msg_Dbg( NULL, "end of file reached" );
         b_die = true;
         return 0;
     }
@@ -179,8 +198,11 @@ static ssize_t file_Read( void *p_buf, size_t i_len )
 
     if ( (i_ret = read( i_input_fd, p_buf, i_len )) < 0 )
     {
-        msg_Err( NULL, "read error (%s)", strerror(errno) );
-        b_die = true;
+        if ( !b_die )
+        {
+            msg_Err( NULL, "read error (%s)", strerror(errno) );
+            b_die = true;
+        }
         return 0;
     }
     if ( i_ret == 0 )
@@ -281,10 +303,16 @@ int main( int i_argc, char **pp_argv )
     size_t i_max_read_size, i_max_write_size;
     int c;
 
-    while ( (c = getopt( i_argc, pp_argv, "i:t:p:s:n:d:aS:uUPm:h" )) != -1 )
+    i_verbose = VERB_WARN;
+
+    while ( (c = getopt( i_argc, pp_argv, "vi:t:p:s:n:d:aS:uUPm:h" )) != -1 )
     {
         switch ( c )
         {
+        case 'v':
+            i_verbose++;
+            break;
+
         case 'i':
             i_priority = strtol( optarg, NULL, 0 );
             break;
-- 
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