4.3BSD - /usr/src/etc/config/main.c

   1: /*
   2:  * Copyright (c) 1980 Regents of the University of California.
   3:  * All rights reserved.  The Berkeley software License Agreement
   4:  * specifies the terms and conditions for redistribution.
   5:  */
   6: 
   7: #ifndef lint
   8: char copyright[] =
   9: "@(#) Copyright (c) 1980 Regents of the University of California.\n\
  10:  All rights reserved.\n";
  11: #endif not lint
  12: 
  13: #ifndef lint
  14: static char sccsid[] = "@(#)main.c	5.2 (Berkeley) 1/11/86";
  15: #endif not lint
  16: 
  17: #include <stdio.h>
  18: #include <ctype.h>
  19: #include "y.tab.h"
  20: #include "config.h"
  21: 
  22: /*
  23:  * Config builds a set of files for building a UNIX
  24:  * system given a description of the desired system.
  25:  */
  26: main(argc, argv)
  27:     int argc;
  28:     char **argv;
  29: {
  30: 
  31:     if (argc > 1 && eq("-p", argv[1])) {
  32:         profiling++;
  33:         argc--, argv++;
  34:     }
  35:     if (argc != 2) {
  36:         fprintf(stderr, "usage: config [ -p ] sysname\n");
  37:         exit(1);
  38:     }
  39:     PREFIX = argv[1];
  40:     if (freopen(argv[1], "r", stdin) == NULL) {
  41:         perror(argv[1]);
  42:         exit(2);
  43:     }
  44:     dtab = NULL;
  45:     confp = &conf_list;
  46:     if (yyparse())
  47:         exit(3);
  48:     switch (machine) {
  49: 
  50:     case MACHINE_VAX:
  51:         vax_ioconf();       /* Print ioconf.c */
  52:         ubglue();       /* Create ubglue.s */
  53:         break;
  54: 
  55:     case MACHINE_SUN:
  56:         sun_ioconf();
  57:         break;
  58: 
  59:     default:
  60:         printf("Specify machine type, e.g. ``machine vax''\n");
  61:         exit(1);
  62:     }
  63:     symlink("../h", path("sys"));   /* make genassym.c work */
  64:     makefile();         /* build Makefile */
  65:     headers();          /* make a lot of .h files */
  66:     swapconf();         /* swap config files */
  67:     printf("Don't forget to run \"make depend\"\n");
  68: }
  69: 
  70: /*
  71:  * get_word
  72:  *	returns EOF on end of file
  73:  *	NULL on end of line
  74:  *	pointer to the word otherwise
  75:  */
  76: char *
  77: get_word(fp)
  78:     register FILE *fp;
  79: {
  80:     static char line[80];
  81:     register int ch;
  82:     register char *cp;
  83: 
  84:     while ((ch = getc(fp)) != EOF)
  85:         if (ch != ' ' && ch != '\t')
  86:             break;
  87:     if (ch == EOF)
  88:         return ((char *)EOF);
  89:     if (ch == '\n')
  90:         return (NULL);
  91:     cp = line;
  92:     *cp++ = ch;
  93:     while ((ch = getc(fp)) != EOF) {
  94:         if (isspace(ch))
  95:             break;
  96:         *cp++ = ch;
  97:     }
  98:     *cp = 0;
  99:     if (ch == EOF)
 100:         return ((char *)EOF);
 101:     (void) ungetc(ch, fp);
 102:     return (line);
 103: }
 104: 
 105: /*
 106:  * prepend the path to a filename
 107:  */
 108: char *
 109: path(file)
 110:     char *file;
 111: {
 112:     register char *cp;
 113: 
 114:     cp = malloc((unsigned)(strlen(PREFIX)+strlen(file)+5));
 115:     (void) strcpy(cp, "../");
 116:     (void) strcat(cp, PREFIX);
 117:     (void) strcat(cp, "/");
 118:     (void) strcat(cp, file);
 119:     return (cp);
 120: }

Defined functions

Defined variables