./Source/robohdrs.c

ROBOhdrs/doCtagsExec [ Functions ]

NAME

doCtagsExec

SYNOPSIS

*    static FILE * doCtagsExec(char *fname)

SOURCE

static FILE        *
doCtagsExec( char *fname )
{
    int                 fd[2], pid;
    FILE               *incoming = NULL;
    char               *mybin, *bin = "ctags";

    mybin = ( ctagsBin[0] ? ctagsBin : bin );

    if ( pipe( fd ) == -1 )
    {
        fprintf( stderr, "pipe failed\n" );
        exit( 1 );
    }

    if ( ( pid = fork(  ) ) == 0 )
    {
        close( 1 );
        dup( fd[1] );
        close( fd[0] );
        if ( execlp( mybin, mybin, "-x", fname, NULL ) == -1 )
        {
            fprintf( stderr, "execlp failed\n" );
            exit( 1 );
        }
    }
    else if ( pid == -1 )
    {
        fprintf( stderr, "fork failed\n" );
        exit( 1 );
    }
    else
    {
        close( 0 );
        dup( fd[0] );
        close( fd[1] );

        if ( ( incoming = fdopen( 0, "r" ) ) == NULL )
        {
            fprintf( stderr, "fdopen failed\n" );
            exit( 1 );
        }
    }

    return incoming;
}