cScm Configuration Daemon

     5         kx 
     5         kx #ifdef HAVE_CONFIG_H
     5         kx #include <config.h>
     5         kx #endif
     5         kx 
     5         kx #include <fcntl.h>
     5         kx #include <paths.h>
     5         kx #include <unistd.h>
     5         kx 
     5         kx #include <daemon.h>
     5         kx 
     5         kx int daemon( int nochdir, int noclose )
     5         kx {
     5         kx   int fd;
     5         kx 
     5         kx   switch( fork() )
     5         kx   {
     5         kx     case -1:
     5         kx       return( -1 );
     5         kx     case 0:
     5         kx       break;
     5         kx     default:
     5         kx       _exit( 0 ); /* direct use kernel exit */
     5         kx   }
     5         kx 
     5         kx   if( setsid() == -1 ) return( -1 );
     5         kx   if( !nochdir ) chdir( "/" );
     5         kx   if( noclose ) return( 0 );
     5         kx 
     5         kx   fd = open( _PATH_DEVNULL, O_RDWR, 0 );
     5         kx   if( fd != -1 )
     5         kx   {
     5         kx     dup2( fd, STDIN_FILENO );
     5         kx     dup2( fd, STDOUT_FILENO );
     5         kx     dup2( fd, STDERR_FILENO );
     5         kx     if( fd > 2 ) close( fd );
     5         kx   }
     5         kx   return( 0 );
     5         kx }