c99.c revision 146466 
151893Sache/*-
251893Sache * Copyright (c) 2002 Tim J. Robbins.
351893Sache * All rights reserved.
451893Sache *
551893Sache * Redistribution and use in source and binary forms, with or without
651893Sache * modification, are permitted provided that the following conditions
751893Sache * are met:
851893Sache * 1. Redistributions of source code must retain the above copyright
951893Sache *    notice, this list of conditions and the following disclaimer.
1051893Sache * 2. Redistributions in binary form must reproduce the above copyright
1151893Sache *    notice, this list of conditions and the following disclaimer in the
1251893Sache *    documentation and/or other materials provided with the distribution.
1351893Sache *
1451893Sache * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
1551893Sache * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1651893Sache * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1751893Sache * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
1851893Sache * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
1951893Sache * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
2051893Sache * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
2151893Sache * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
2251893Sache * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
2351893Sache * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
2451893Sache * SUCH DAMAGE.
2551893Sache */
2651893Sache
2751893Sache/*
2851893Sache * c99 -- compile standard C programs
2951893Sache *
3051893Sache * This is essentially a wrapper around the system C compiler that forces
3151893Sache * the compiler into C99 mode and handles some of the standard libraries
3251893Sache * specially.
3351893Sache */
3451893Sache
3551893Sache#include <sys/cdefs.h>
3651893Sache__FBSDID("$FreeBSD: head/usr.bin/c99/c99.c 146466 2005-05-21 09:55:10Z ru $");
3751893Sache
3851893Sache#include <sys/types.h>
3951893Sache
4051893Sache#include <err.h>
41#include <stdio.h>
42#include <stdlib.h>
43#include <string.h>
44#include <unistd.h>
45
46char **args;
47u_int cargs, nargs;
48
49void addarg(const char *);
50void addlib(const char *);
51void usage(void);
52
53int
54main(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("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
94void
95addarg(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
107void
108addlib(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
126void
127usage(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