1/*-
2 * Copyright (c) 2002 Tim J. Robbins.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27/*
28 * c99 -- compile standard C programs
29 *
30 * This is essentially a wrapper around the system C compiler that forces
31 * the compiler into C99 mode and handles some of the standard libraries
32 * specially.
33 */
34
35#include <sys/cdefs.h>
36__FBSDID("$FreeBSD$");
37
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
46static char **args;
47static u_int cargs, nargs;
48
49static void addarg(const char *);
50static void addlib(const char *);
51static void 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("/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
94static void
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
107static void
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
126static void
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