[PATCH 1/3] allow remote syslog via TCP in syslogdctrl.c

["Peter Müller" <peter.mueller@link38.eu>]

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Make syslogctrl.c use TCP as remote logging file if specified so.

NOTE: This patch likely contains errors, since I do not know anything
about C at all. Please have a close look at it. Sorry.

Signed-off-by: Peter Müller <peter.mueller(a)link38.eu>
---
 src/misc-progs/syslogdctrl.c | 24 ++++++++++++++++++++++--
 1 file changed, 22 insertions(+), 2 deletions(-)

diff --git a/src/misc-progs/syslogdctrl.c b/src/misc-progs/syslogdctrl.c
index 52719023e..b356ebe49 100644
--- a/src/misc-progs/syslogdctrl.c
+++ b/src/misc-progs/syslogdctrl.c
@@ -32,13 +32,14 @@
 
 int main(void)
 {
-   char buffer[STRING_SIZE], command[STRING_SIZE], hostname[STRING_SIZE];
+   char buffer[STRING_SIZE], command[STRING_SIZE], hostname[STRING_SIZE], protocol[STRING_SIZE];
    char varmessages[STRING_SIZE], asynclog[STRING_SIZE];
    int config_fd,rc,fd,pid;
    struct stat st;
    struct keyvalue *kv = NULL;
    memset(buffer, 0, STRING_SIZE);
    memset(hostname, 0, STRING_SIZE);
+   memset(protocol, 0, STRING_SIZE);
    memset(varmessages, 0, STRING_SIZE);
    memset(asynclog, 0, STRING_SIZE);
 
@@ -73,6 +74,12 @@ int main(void)
       exit(ERR_SETTINGS);
    }
 
+   if (!findkey(kv, "REMOTELOG_PROTOCOL", protocol))
+   {
+      fprintf(stderr, "Cannot read REMOTELOG_PROTOCOL\n");
+      exit(ERR_SETTINGS);
+   }
+
    freekeyvalues(kv);
 
 
@@ -105,9 +112,22 @@ int main(void)
       exit(ERR_CONFIG);
    }
 
+   /* differ between UDP and TCP as rsyslog protocol */
    if (!strcmp(buffer,"on"))
-      snprintf(buffer, STRING_SIZE - 1, "/bin/sed -e 's/^#\\?\\(\\*\\.\\*[[:blank:]]\\+@\\).\\+$/\\1%s/' /etc/syslog.conf >&%d", hostname, config_fd );
+      if ( protocol == "udp" )
+      {
+         snprintf(buffer, STRING_SIZE - 1, "/bin/sed -e 's/^#\\?\\(\\*\\.\\*[[:blank:]]\\+@\\).\\+$/\\1%s/' /etc/syslog.conf >&%d", hostname, config_fd );
+      }
+      elif ( protocol == "tcp" )
+      {
+         snprintf(buffer, STRING_SIZE - 1, "/bin/sed -e 's/^#\\?\\(\\*\\.\\*[[:blank:]]\\+@@\\).\\+$/\\1%s/' /etc/syslog.conf >&%d", hostname, config_fd );
+      }
+      else
+      {
+         fprintf(stderr, "Received invalid protocol for remote log\n");
+      }
    else
+      /* turn off remote syslog if specified */
       snprintf(buffer, STRING_SIZE - 1, "/bin/sed -e 's/^#\\?\\(\\*\\.\\*[[:blank:]]\\+(a).\\+\\)$/#\\1/' /etc/syslog.conf >&%d", config_fd );
 
      /* if the return code isn't 0 failsafe */
-- 
2.13.6