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Annotation of src/usr.bin/mk_cmds/mk_cmds.c, Revision 1.2

1.2     ! deraadt     1: /*     $OpenBSD: mk_cmds.c,v 1.1 1996/11/15 09:26:06 downsj Exp $      */
1.1       downsj      2:
                      3: /*-
                      4:  * Copyright 1987, 1988 by the Student Information Processing Board
                      5:  *     of the Massachusetts Institute of Technology
                      6:  *
                      7:  * Permission to use, copy, modify, and distribute this software
                      8:  * and its documentation for any purpose and without fee is
                      9:  * hereby granted, provided that the above copyright notice
                     10:  * appear in all copies and that both that copyright notice and
                     11:  * this permission notice appear in supporting documentation,
                     12:  * and that the names of M.I.T. and the M.I.T. S.I.P.B. not be
                     13:  * used in advertising or publicity pertaining to distribution
                     14:  * of the software without specific, written prior permission.
                     15:  * M.I.T. and the M.I.T. S.I.P.B. make no representations about
                     16:  * the suitability of this software for any purpose.  It is
                     17:  * provided "as is" without express or implied warranty.
                     18:  */
                     19:
                     20: #include <stdio.h>
                     21: #include <sys/types.h>
                     22: #include <sys/param.h>
                     23: #include <sys/file.h>
                     24: #ifndef NPOSIX
                     25: #include <string.h>
                     26: #else
                     27: #include <strings.h>
                     28: #endif
                     29: #include "mk_cmds_defs.h"
                     30:
                     31: static const char copyright[] =
                     32:     "Copyright 1987 by MIT Student Information Processing Board";
                     33:
                     34: extern pointer malloc PROTOTYPE((unsigned));
                     35: extern char *last_token;
                     36: extern FILE *output_file;
                     37:
                     38: extern FILE *yyin, *yyout;
                     39: extern unsigned lineno;
                     40:
                     41: main(argc, argv)
                     42:     int argc;
                     43:     char **argv;
                     44: {
                     45:     char c_file[MAXPATHLEN];
                     46:     int result;
                     47:     char *path, *p;
                     48:
                     49:     if (argc != 2) {
                     50:        fputs("Usage: ", stderr);
                     51:        fputs(argv[0], stderr);
1.2     ! deraadt    52:        fputs(" cmdtbl.ct\n", stderr);
1.1       downsj     53:        exit(1);
                     54:     }
                     55:
                     56:     path = malloc(strlen(argv[1])+4); /* extra space to add ".ct" */
                     57:     strcpy(path, argv[1]);
                     58:     p = strrchr(path, '/');
                     59:     if (p == (char *)NULL)
                     60:        p = path;
                     61:     else
                     62:        p++;
                     63:     p = strrchr(p, '.');
                     64:     if (p == (char *)NULL || strcmp(p, ".ct"))
                     65:        strcat(path, ".ct");
                     66:     yyin = fopen(path, "r");
                     67:     if (!yyin) {
                     68:        perror(path);
                     69:        exit(1);
                     70:     }
                     71:
                     72:     p = strrchr(path, '.');
                     73:     *p = '\0';
                     74:     strcpy(c_file, path);
                     75:     strcat(c_file, ".c");
                     76:     *p = '.';
                     77:
                     78:     output_file = fopen(c_file, "w+");
                     79:     if (!output_file) {
                     80:        perror(c_file);
                     81:        exit(1);
                     82:     }
                     83:
                     84:     fputs("/* ", output_file); /* emacs fix -> */
                     85:     fputs(c_file, output_file);
                     86:     fputs(" - automatically generated from ", output_file);
                     87:     fputs(path, output_file);
                     88:     fputs(" */\n", output_file);
                     89:     fputs("#include <ss/ss.h>\n\n", output_file);
                     90:     fputs("#ifndef __STDC__\n#define const\n#endif\n\n", output_file);
                     91:     /* parse it */
                     92:     result = yyparse();
                     93:     /* put file descriptors back where they belong */
                     94:     fclose(yyin);              /* bye bye input file */
                     95:     fclose(output_file);       /* bye bye output file */
                     96:
                     97:     return result;
                     98: }
                     99:
                    100: yyerror(s)
                    101:     char *s;
                    102: {
                    103:     fputs(s, stderr);
                    104:     fprintf(stderr, "\nLine %d; last token was '%s'\n",
                    105:            lineno, last_token);
                    106: }