1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2002 Tim J. Robbins. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 /* 30 * c99 -- compile standard C programs 31 * 32 * This is essentially a wrapper around the system C compiler that forces 33 * the compiler into C99 mode and handles some of the standard libraries 34 * specially. 35 */ 36 37 #include <sys/cdefs.h> 38 #include <sys/types.h> 39 40 #include <err.h> 41 #include <stdio.h> 42 #include <stdlib.h> 43 #include <string.h> 44 #include <unistd.h> 45 46 static char **args; 47 static u_int cargs, nargs; 48 49 static void addarg(const char *); 50 static void addlib(const char *); 51 static void usage(void) __dead2; 52 53 int 54 main(int argc, char *argv[]) 55 { 56 int ch, i; 57 58 args = NULL; 59 cargs = nargs = 0; 60 61 while ((ch = getopt(argc, argv, "cD:EgI:L:o:O:sU:l:")) != -1) { 62 if (ch == 'l') { 63 /* Gone too far. Back up and get out. */ 64 if (argv[optind - 1][0] == '-') 65 optind -= 1; 66 else 67 optind -= 2; 68 break; 69 } else if (ch == '?') 70 usage(); 71 } 72 73 addarg("/usr/bin/cc"); 74 addarg("-std=iso9899:1999"); 75 addarg("-pedantic"); 76 for (i = 1; i < optind; i++) 77 addarg(argv[i]); 78 while (i < argc) { 79 if (strncmp(argv[i], "-l", 2) == 0) { 80 if (argv[i][2] != '\0') 81 addlib(argv[i++] + 2); 82 else { 83 if (argv[++i] == NULL) 84 usage(); 85 addlib(argv[i++]); 86 } 87 } else 88 addarg(argv[i++]); 89 } 90 execv("/usr/bin/cc", args); 91 err(1, "/usr/bin/cc"); 92 } 93 94 static void 95 addarg(const char *item) 96 { 97 if (nargs + 1 >= cargs) { 98 cargs += 16; 99 if ((args = realloc(args, sizeof(*args) * cargs)) == NULL) 100 err(1, "malloc"); 101 } 102 if ((args[nargs++] = strdup(item)) == NULL) 103 err(1, "strdup"); 104 args[nargs] = NULL; 105 } 106 107 static void 108 addlib(const char *lib) 109 { 110 111 if (strcmp(lib, "pthread") == 0) 112 /* FreeBSD's gcc uses -pthread instead of -lpthread. */ 113 addarg("-pthread"); 114 else if (strcmp(lib, "rt") == 0) 115 /* librt functionality is in libc or unimplemented. */ 116 ; 117 else if (strcmp(lib, "xnet") == 0) 118 /* xnet functionality is in libc. */ 119 ; 120 else { 121 addarg("-l"); 122 addarg(lib); 123 } 124 } 125 126 static void 127 usage(void) 128 { 129 (void)fprintf(stderr, "%s\n%s\n", 130 "usage: c99 [-cEgs] [-D name[=value]] ... [-I directory] ... [-L directory] ...", 131 " [-o outfile] [-O optlevel] [-U name] ... operand ..."); 132 exit(1); 133 } 134