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authorschweikh <schweikh@FreeBSD.org>2001-05-08 20:27:14 +0000
committerschweikh <schweikh@FreeBSD.org>2001-05-08 20:27:14 +0000
commitc81b45062fdfdd64986c038b41a691128e54d08c (patch)
tree40d388d144372e32d158e8a4763b0c87c3130103 /usr.bin
parent3f3636cf89b210a40fa97463b828f9c9a5fa54be (diff)
downloadFreeBSD-src-c81b45062fdfdd64986c038b41a691128e54d08c.zip
FreeBSD-src-c81b45062fdfdd64986c038b41a691128e54d08c.tar.gz
Here comes the forgotten C source, oopsy.
Turned the shell script into a binary fixing several minor buglets. Mention _POSIX_SOURCE feature test macro in man page. PR: bin/19337 Submitted by: schweikh Reviewed by: joerg, bde MFC after: 2 weeks
Diffstat (limited to 'usr.bin')
-rw-r--r--usr.bin/c89/c89.c108
1 files changed, 108 insertions, 0 deletions
diff --git a/usr.bin/c89/c89.c b/usr.bin/c89/c89.c
new file mode 100644
index 0000000..2843529
--- /dev/null
+++ b/usr.bin/c89/c89.c
@@ -0,0 +1,108 @@
+/*-
+ * This is the Posix.2 mandated C compiler. Basically, a hook to the
+ * cc(1) command.
+ *
+ * Copyright (c) 2001 by Jens Schweikhardt
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+#ifndef lint
+static const char rcsid[] =
+ "$FreeBSD$";
+#endif /* not lint */
+
+#include <err.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <unistd.h>
+
+#define CC "/usr/bin/cc" /* The big kahuna doing the actual work. */
+#define N_ARGS_PREPENDED (sizeof(args_prepended) / sizeof(args_prepended[0]))
+
+/*
+ * We do not add -D_POSIX_SOURCE here because any POSIX source is supposed to
+ * define it before inclusion of POSIX headers. This has the additional
+ * benefit of making c89 -D_ANSI_SOURCE do the right thing (or any other
+ * -D_FOO_SOURCE feature test macro we support.)
+ */
+static char *args_prepended[] = {
+ "-std=iso9899:199409",
+ "-pedantic"
+};
+
+static void usage(void);
+
+/*
+ * Prepend the strings from args_prepended[] to the arg list; parse options,
+ * accepting only the POSIX c89 mandated options. Then exec cc to do the
+ * actual work.
+ */
+int
+main(int argc, char **argv)
+{
+ int Argc, i;
+ char **Argv;
+
+ Argc = 0;
+ Argv = malloc((argc + 1 + N_ARGS_PREPENDED) * sizeof *Argv);
+ if (Argv == NULL)
+ err(1, "malloc");
+ Argv[Argc++] = argv[0];
+ for (i = 0; i < N_ARGS_PREPENDED; ++i)
+ Argv[Argc++] = args_prepended[i];
+ while ((i = getopt(argc, argv, "cD:EgI:l:L:o:OsU:")) != -1) {
+ if (i == '?')
+ usage();
+ if (i == 'l') {
+ if (argv[optind - 1][0] == '-') /* -llib */
+ optind -= 1;
+ else /* -l lib */
+ optind -= 2;
+ break; /* -llib or -l lib starts the operands. */
+ }
+ }
+ if (argc == optind) {
+ warnx("missing operand");
+ usage();
+ }
+
+ /* Append argv[1..] at the end of Argv[]. */
+ for (i = 1; i <= argc; ++i)
+ Argv[Argc++] = argv[i];
+ (void)execv(CC, Argv);
+ err(1, "execv(" CC ")");
+}
+
+static void
+usage(void)
+{
+ fprintf(stderr,
+"usage: c89 [-c] [-D name[=value]] [...] [-E] [-g] [-I directory ...]\n"
+" [-L directory ...] [-o outfile] [-O] [-s] [-U name ...] operand ...\n"
+"\n"
+" where operand is one or more of file.c, file.o, file.a\n"
+" or -llibrary\n");
+ exit(1);
+}
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