1 /* main.c 1.8 82/12/09 */ 2 3 #include <stdio.h> 4 #include <ctype.h> 5 #include "y.tab.h" 6 #include "config.h" 7 8 /* 9 * Config builds a set of files for building a UNIX 10 * system given a description of the desired system. 11 */ 12 main(argc, argv) 13 int argc; 14 char **argv; 15 { 16 17 if (argc > 1 && eq("-p", argv[1])) { 18 profiling++; 19 argc--, argv++; 20 } 21 if (argc != 2) { 22 fprintf(stderr, "usage: config [ -p ] sysname\n"); 23 exit(1); 24 } 25 PREFIX = argv[1]; 26 if (freopen(argv[1], "r", stdin) == NULL) { 27 perror(argv[1]); 28 exit(2); 29 } 30 dtab = NULL; 31 if (yyparse()) 32 exit(3); 33 switch (machine) { 34 35 case MACHINE_VAX: 36 vax_ioconf(); /* Print ioconf.c */ 37 ubglue(); /* Create ubglue.s */ 38 break; 39 40 case MACHINE_SUN: 41 sun_ioconf(); 42 break; 43 44 default: 45 printf("Specify machine type, e.g. ``machine vax''\n"); 46 exit(1); 47 } 48 makefile(); /* build Makefile */ 49 headers(); /* make a lot of .h files */ 50 printf("Don't forget to run \"make depend\"\n"); 51 } 52 53 /* 54 * get_word 55 * returns EOF on end of file 56 * NULL on end of line 57 * pointer to the word otherwise 58 */ 59 char * 60 get_word(fp) 61 register FILE *fp; 62 { 63 static char line[80]; 64 register int ch; 65 register char *cp; 66 67 while ((ch = getc(fp)) != EOF) 68 if (ch != ' ' && ch != '\t') 69 break; 70 if (ch == EOF) 71 return ((char *)EOF); 72 if (ch == '\n') 73 return (NULL); 74 cp = line; 75 *cp++ = ch; 76 while ((ch = getc(fp)) != EOF) { 77 if (isspace(ch)) 78 break; 79 *cp++ = ch; 80 } 81 *cp = 0; 82 if (ch == EOF) 83 return ((char *)EOF); 84 (void) ungetc(ch, fp); 85 return (line); 86 } 87 88 /* 89 * prepend the path to a filename 90 */ 91 char * 92 path(file) 93 char *file; 94 { 95 register char *cp; 96 97 cp = malloc((unsigned)(strlen(PREFIX)+strlen(file)+5)); 98 (void) strcpy(cp, "../"); 99 (void) strcat(cp, PREFIX); 100 (void) strcat(cp, "/"); 101 (void) strcat(cp, file); 102 return (cp); 103 } 104