176378Sschweikh/*- 276378Sschweikh * This is the Posix.2 mandated C compiler. Basically, a hook to the 376378Sschweikh * cc(1) command. 476378Sschweikh * 576378Sschweikh * Copyright (c) 2001 by Jens Schweikhardt 676378Sschweikh * 776378Sschweikh * Redistribution and use in source and binary forms, with or without 876378Sschweikh * modification, are permitted provided that the following conditions 976378Sschweikh * are met: 1076378Sschweikh * 1. Redistributions of source code must retain the above copyright 1176378Sschweikh * notice, this list of conditions and the following disclaimer. 1276378Sschweikh * 2. Redistributions in binary form must reproduce the above copyright 1376378Sschweikh * notice, this list of conditions and the following disclaimer in the 1476378Sschweikh * documentation and/or other materials provided with the distribution. 1576378Sschweikh * 1676378Sschweikh * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND 1776378Sschweikh * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1876378Sschweikh * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1976378Sschweikh * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 2076378Sschweikh * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2176378Sschweikh * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2276378Sschweikh * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2376378Sschweikh * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2476378Sschweikh * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2576378Sschweikh * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2676378Sschweikh * SUCH DAMAGE. 2776378Sschweikh * 2876378Sschweikh */ 2976378Sschweikh 3087258Smarkm#include <sys/cdefs.h> 3187258Smarkm__FBSDID("$FreeBSD$"); 3287258Smarkm 3376378Sschweikh#include <err.h> 3476378Sschweikh#include <stdio.h> 3576378Sschweikh#include <stdlib.h> 36200462Sdelphij#include <string.h> 3776378Sschweikh 3876378Sschweikh#include <unistd.h> 3976378Sschweikh 4076378Sschweikh#define CC "/usr/bin/cc" /* The big kahuna doing the actual work. */ 4176378Sschweikh#define N_ARGS_PREPENDED (sizeof(args_prepended) / sizeof(args_prepended[0])) 4276378Sschweikh 4376378Sschweikh/* 4476378Sschweikh * We do not add -D_POSIX_SOURCE here because any POSIX source is supposed to 4576378Sschweikh * define it before inclusion of POSIX headers. This has the additional 4676378Sschweikh * benefit of making c89 -D_ANSI_SOURCE do the right thing (or any other 4776378Sschweikh * -D_FOO_SOURCE feature test macro we support.) 4876378Sschweikh */ 4987210Smarkmstatic const char *args_prepended[] = { 5076378Sschweikh "-std=iso9899:199409", 5176378Sschweikh "-pedantic" 5276378Sschweikh}; 5376378Sschweikh 5476378Sschweikhstatic void usage(void); 5576378Sschweikh 5676378Sschweikh/* 5776378Sschweikh * Prepend the strings from args_prepended[] to the arg list; parse options, 5876378Sschweikh * accepting only the POSIX c89 mandated options. Then exec cc to do the 5976378Sschweikh * actual work. 6076378Sschweikh */ 6176378Sschweikhint 6276378Sschweikhmain(int argc, char **argv) 6376378Sschweikh{ 6476378Sschweikh int Argc, i; 6587210Smarkm size_t j; 6687210Smarkm union { 6787210Smarkm const char **a; 6887210Smarkm char * const *b; 6987210Smarkm } Argv; 7076378Sschweikh 7176378Sschweikh Argc = 0; 7287210Smarkm Argv.a = malloc((argc + 1 + N_ARGS_PREPENDED) * sizeof *Argv.a); 7387210Smarkm if (Argv.a == NULL) 7476378Sschweikh err(1, "malloc"); 75248131Sdim Argv.a[Argc++] = CC; 7687210Smarkm for (j = 0; j < N_ARGS_PREPENDED; ++j) 7787210Smarkm Argv.a[Argc++] = args_prepended[j]; 7876378Sschweikh while ((i = getopt(argc, argv, "cD:EgI:l:L:o:OsU:")) != -1) { 7976378Sschweikh if (i == '?') 8076378Sschweikh usage(); 8176378Sschweikh if (i == 'l') { 8276378Sschweikh if (argv[optind - 1][0] == '-') /* -llib */ 8376378Sschweikh optind -= 1; 8476378Sschweikh else /* -l lib */ 8576378Sschweikh optind -= 2; 8676378Sschweikh break; /* -llib or -l lib starts the operands. */ 8776378Sschweikh } 8876378Sschweikh } 8976378Sschweikh if (argc == optind) { 9076378Sschweikh warnx("missing operand"); 9176378Sschweikh usage(); 9276378Sschweikh } 9376378Sschweikh 9487210Smarkm /* Append argv[1..] at the end of Argv[].a. */ 9576378Sschweikh for (i = 1; i <= argc; ++i) 9687210Smarkm Argv.a[Argc++] = argv[i]; 9787210Smarkm (void)execv(CC, Argv.b); 9876378Sschweikh err(1, "execv(" CC ")"); 9976378Sschweikh} 10076378Sschweikh 10176378Sschweikhstatic void 10276378Sschweikhusage(void) 10376378Sschweikh{ 10476378Sschweikh fprintf(stderr, 105146466Sru"usage: c89 [-cEgOs] [-D name[=value]] ... [-I directory] ... [-L directory] ...\n" 106146466Sru" [-o outfile] [-U name] ... operand ...\n" 10776378Sschweikh"\n" 10876378Sschweikh" where operand is one or more of file.c, file.o, file.a\n" 10976378Sschweikh" or -llibrary\n"); 11076378Sschweikh exit(1); 11176378Sschweikh} 112