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/types.h> 38 39 #include <err.h> 40 #include <stdio.h> 41 #include <stdlib.h> 42 #include <string.h> 43 #include <unistd.h> 44 45 static char **args; 46 static u_int cargs, nargs; 47 48 static void addarg(const char *); 49 static void addlib(const char *); 50 static void usage(void) __dead2; 51 52 int 53 main(int argc, char *argv[]) 54 { 55 int ch, i; 56 57 args = NULL; 58 cargs = nargs = 0; 59 60 while ((ch = getopt(argc, argv, "cD:EgI:L:o:O:sU:l:")) != -1) { 61 if (ch == 'l') { 62 /* Gone too far. Back up and get out. */ 63 if (argv[optind - 1][0] == '-') 64 optind -= 1; 65 else 66 optind -= 2; 67 break; 68 } else if (ch == '?') 69 usage(); 70 } 71 72 addarg("/usr/bin/cc"); 73 addarg("-std=iso9899:1999"); 74 addarg("-pedantic"); 75 for (i = 1; i < optind; i++) 76 addarg(argv[i]); 77 while (i < argc) { 78 if (strncmp(argv[i], "-l", 2) == 0) { 79 if (argv[i][2] != '\0') 80 addlib(argv[i++] + 2); 81 else { 82 if (argv[++i] == NULL) 83 usage(); 84 addlib(argv[i++]); 85 } 86 } else 87 addarg(argv[i++]); 88 } 89 execv("/usr/bin/cc", args); 90 err(1, "/usr/bin/cc"); 91 } 92 93 static void 94 addarg(const char *item) 95 { 96 if (nargs + 1 >= cargs) { 97 cargs += 16; 98 if ((args = realloc(args, sizeof(*args) * cargs)) == NULL) 99 err(1, "malloc"); 100 } 101 if ((args[nargs++] = strdup(item)) == NULL) 102 err(1, "strdup"); 103 args[nargs] = NULL; 104 } 105 106 static void 107 addlib(const char *lib) 108 { 109 110 if (strcmp(lib, "pthread") == 0) 111 /* FreeBSD's gcc uses -pthread instead of -lpthread. */ 112 addarg("-pthread"); 113 else if (strcmp(lib, "rt") == 0) 114 /* librt functionality is in libc or unimplemented. */ 115 ; 116 else if (strcmp(lib, "xnet") == 0) 117 /* xnet functionality is in libc. */ 118 ; 119 else { 120 addarg("-l"); 121 addarg(lib); 122 } 123 } 124 125 static void 126 usage(void) 127 { 128 (void)fprintf(stderr, "%s\n%s\n", 129 "usage: c99 [-cEgs] [-D name[=value]] ... [-I directory] ... [-L directory] ...", 130 " [-o outfile] [-O optlevel] [-U name] ... operand ..."); 131 exit(1); 132 } 133