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
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);
52
53 int
main(int argc,char * argv[])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
addarg(const char * item)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
addlib(const char * lib)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
usage(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