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Annotation of 43BSDReno/usr.sbin/config/main.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1980 Regents of the University of California.
        !             3:  * All rights reserved.
        !             4:  *
        !             5:  * Redistribution and use in source and binary forms are permitted provided
        !             6:  * that: (1) source distributions retain this entire copyright notice and
        !             7:  * comment, and (2) distributions including binaries display the following
        !             8:  * acknowledgement:  ``This product includes software developed by the
        !             9:  * University of California, Berkeley and its contributors'' in the
        !            10:  * documentation or other materials provided with the distribution and in
        !            11:  * all advertising materials mentioning features or use of this software.
        !            12:  * Neither the name of the University nor the names of its contributors may
        !            13:  * be used to endorse or promote products derived from this software without
        !            14:  * specific prior written permission.
        !            15:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
        !            16:  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
        !            17:  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            18:  */
        !            19: 
        !            20: #ifndef lint
        !            21: char copyright[] =
        !            22: "@(#) Copyright (c) 1980 Regents of the University of California.\n\
        !            23:  All rights reserved.\n";
        !            24: #endif /* not lint */
        !            25: 
        !            26: #ifndef lint
        !            27: static char sccsid[] = "@(#)main.c     5.12 (Berkeley) 6/1/90";
        !            28: #endif /* not lint */
        !            29: 
        !            30: #include <sys/types.h>
        !            31: #include <sys/stat.h>
        !            32: #include <sys/file.h>
        !            33: #include <stdio.h>
        !            34: #include <ctype.h>
        !            35: #include "y.tab.h"
        !            36: #include "config.h"
        !            37: 
        !            38: static char *PREFIX;
        !            39: 
        !            40: /*
        !            41:  * Config builds a set of files for building a UNIX
        !            42:  * system given a description of the desired system.
        !            43:  */
        !            44: main(argc, argv)
        !            45:        int argc;
        !            46:        char **argv;
        !            47: {
        !            48: 
        !            49:        extern char *optarg;
        !            50:        extern int optind;
        !            51:        struct stat buf;
        !            52:        int ch;
        !            53:        char *p;
        !            54: 
        !            55:        while ((ch = getopt(argc, argv, "gp")) != EOF)
        !            56:                switch((char)ch) {
        !            57:                case 'g':
        !            58:                        debugging++;
        !            59:                        break;
        !            60:                case 'p':
        !            61:                        profiling++;
        !            62:                        break;
        !            63:                case '?':
        !            64:                default:
        !            65:                        goto usage;
        !            66:                }
        !            67:        argc -= optind;
        !            68:        argv += optind;
        !            69: 
        !            70:        if (argc != 1) {
        !            71: usage:         fputs("usage: config [-gp] sysname\n", stderr);
        !            72:                exit(1);
        !            73:        }
        !            74: 
        !            75:        if (freopen(PREFIX = *argv, "r", stdin) == NULL) {
        !            76:                perror(PREFIX);
        !            77:                exit(2);
        !            78:        }
        !            79:        if (stat(p = path((char *)NULL), &buf)) {
        !            80:                if (mkdir(p, 0777)) {
        !            81:                        perror(p);
        !            82:                        exit(2);
        !            83:                }
        !            84:        }
        !            85:        else if ((buf.st_mode & S_IFMT) != S_IFDIR) {
        !            86:                fprintf(stderr, "config: %s isn't a directory.\n", p);
        !            87:                exit(2);
        !            88:        }
        !            89: 
        !            90:        dtab = NULL;
        !            91:        confp = &conf_list;
        !            92:        if (yyparse())
        !            93:                exit(3);
        !            94:        switch (machine) {
        !            95: 
        !            96:        case MACHINE_VAX:
        !            97:                vax_ioconf();           /* Print ioconf.c */
        !            98:                ubglue();               /* Create ubglue.s */
        !            99:                break;
        !           100: 
        !           101:        case MACHINE_TAHOE:
        !           102:                tahoe_ioconf();
        !           103:                vbglue();
        !           104:                break;
        !           105: 
        !           106:        case MACHINE_HP300:
        !           107:                hp300_ioconf();
        !           108:                hpglue();
        !           109:                break;
        !           110: 
        !           111:        default:
        !           112:                printf("Specify machine type, e.g. ``machine vax''\n");
        !           113:                exit(1);
        !           114:        }
        !           115:        /*
        !           116:         * make symbolic links in compilation directory
        !           117:         * for "sys" (to make genassym.c work along with #include <sys/xxx>)
        !           118:         * and similarly for "machine".
        !           119:         */
        !           120:        {
        !           121:        char xxx[80];
        !           122: 
        !           123:        (void) symlink("../sys", path("sys"));
        !           124:        (void) sprintf(xxx, "../%s", machinename);
        !           125:        (void) symlink(xxx, path("machine"));
        !           126:        }
        !           127:        makefile();                     /* build Makefile */
        !           128:        headers();                      /* make a lot of .h files */
        !           129:        swapconf();                     /* swap config files */
        !           130:        printf("Don't forget to run \"make depend\"\n");
        !           131:        exit(0);
        !           132: }
        !           133: 
        !           134: /*
        !           135:  * get_word
        !           136:  *     returns EOF on end of file
        !           137:  *     NULL on end of line
        !           138:  *     pointer to the word otherwise
        !           139:  */
        !           140: char *
        !           141: get_word(fp)
        !           142:        register FILE *fp;
        !           143: {
        !           144:        static char line[80];
        !           145:        register int ch;
        !           146:        register char *cp;
        !           147: 
        !           148:        while ((ch = getc(fp)) != EOF)
        !           149:                if (ch != ' ' && ch != '\t')
        !           150:                        break;
        !           151:        if (ch == EOF)
        !           152:                return ((char *)EOF);
        !           153:        if (ch == '\n')
        !           154:                return (NULL);
        !           155:        cp = line;
        !           156:        *cp++ = ch;
        !           157:        while ((ch = getc(fp)) != EOF) {
        !           158:                if (isspace(ch))
        !           159:                        break;
        !           160:                *cp++ = ch;
        !           161:        }
        !           162:        *cp = 0;
        !           163:        if (ch == EOF)
        !           164:                return ((char *)EOF);
        !           165:        (void) ungetc(ch, fp);
        !           166:        return (line);
        !           167: }
        !           168: 
        !           169: /*
        !           170:  * prepend the path to a filename
        !           171:  */
        !           172: char *
        !           173: path(file)
        !           174:        char *file;
        !           175: {
        !           176:        register char *cp;
        !           177: 
        !           178:        cp = malloc((unsigned)(strlen(PREFIX)+strlen(file)+5));
        !           179:        (void) strcpy(cp, "../");
        !           180:        (void) strcat(cp, PREFIX);
        !           181:        if (file) {
        !           182:                (void) strcat(cp, "/");
        !           183:                (void) strcat(cp, file);
        !           184:        }
        !           185:        return (cp);
        !           186: }

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