/*

 * rm_once.c    2002/08, 2004/11    kmatsui

 *  to remove '#pragma once' line from the top of header files

 */

#include    "stdio.h"

#include    "stdlib.h"

#include    "string.h"

main( int argc, char ** argv)

{

    char    buf[ BUFSIZ];

    char    *once = "\n#pragma once\n\n";

    char    *tmp = "tmp.once";

    char    *fname;

    FILE    *fp_in, *fp_out;

    int     i;

    char    *cp;

    while (*++argv) {

        if ((fp_in = fopen( *argv, "r")) != NULL) {

            for (cp = buf, i = 0; i < 3; i++, cp += strlen( cp))

                fgets( cp, BUFSIZ, fp_in);

            if (strcmp( buf, once) != 0) {

                fprintf( stderr, "Skipped %s\n", *argv);

                fclose( fp_in);

                continue;

            }

            fprintf( stderr, "Converted %s\n", *argv);

            fp_out = fopen( tmp, "w");

            while (fgets( buf, BUFSIZ, fp_in) != NULL)

                fputs( buf, fp_out);

            fclose( fp_in);

            fclose( fp_out);

            remove( *argv);

            rename( tmp, *argv);

        }

    }

    return 0;

}