1 files changed, 120 insertions, 0 deletions
diff --git a/src/tools/lcc/cpp/unix.c b/src/tools/lcc/cpp/unix.c
new file mode 100644
index 00000000..f58b51ef
--- /dev/null
+++ b/src/tools/lcc/cpp/unix.c
@@ -0,0 +1,120 @@
+#include <stdio.h>
+#include <stddef.h>
+#include <stdlib.h>
+#include <string.h>
+#include "cpp.h"
+
+extern	int getopt(int, char *const *, const char *);
+extern	char	*optarg, rcsid[];
+extern	int	optind;
+int	verbose;
+int	Mflag;	/* only print active include files */
+char	*objname; /* "src.$O: " */
+int	Cplusplus = 1;
+
+void
+setup(int argc, char **argv)
+{
+	int c, fd, i;
+	char *fp, *dp;
+	Tokenrow tr;
+	extern void setup_kwtab(void);
+
+	setup_kwtab();
+	while ((c = getopt(argc, argv, "MNOVv+I:D:U:F:lg")) != -1)
+		switch (c) {
+		case 'N':
+			for (i=0; i<NINCLUDE; i++)
+				if (includelist[i].always==1)
+					includelist[i].deleted = 1;
+			break;
+		case 'I':
+			appendDirToIncludeList( optarg );
+			break;
+		case 'D':
+		case 'U':
+			setsource("<cmdarg>", -1, optarg);
+			maketokenrow(3, &tr);
+			gettokens(&tr, 1);
+			doadefine(&tr, c);
+			unsetsource();
+			break;
+		case 'M':
+			Mflag++;
+			break;
+		case 'v':
+			fprintf(stderr, "%s %s\n", argv[0], rcsid);
+			break;
+		case 'V':
+			verbose++;
+			break;
+		case '+':
+			Cplusplus++;
+			break;
+		default:
+			break;
+		}
+	dp = ".";
+	fp = "<stdin>";
+	fd = 0;
+	if (optind<argc) {
+		dp = basepath( argv[optind] );
+		fp = (char*)newstring((uchar*)argv[optind], strlen(argv[optind]), 0);
+		if ((fd = open(fp, 0)) <= 0)
+			error(FATAL, "Can't open input file %s", fp);
+	}
+	if (optind+1<argc) {
+		int fdo = creat(argv[optind+1], 0666);
+		if (fdo<0)
+			error(FATAL, "Can't open output file %s", argv[optind+1]);
+		dup2(fdo, 1);
+	}
+	if(Mflag)
+		setobjname(fp);
+	includelist[NINCLUDE-1].always = 0;
+	includelist[NINCLUDE-1].file = dp;
+	setsource(fp, fd, NULL);
+}
+
+
+char *basepath( char *fname )
+{
+	char *dp = ".";
+	char *p;
+	if ((p = strrchr(fname, '/')) != NULL) {
+		int dlen = p - fname;
+		dp = (char*)newstring((uchar*)fname, dlen+1, 0);
+		dp[dlen] = '\0';
+	}
+
+	return dp;
+}
+
+/* memmove is defined here because some vendors don't provide it at
+   all and others do a terrible job (like calling malloc) */
+// -- ouch, that hurts -- ln
+#ifdef memmove
+#undef memmove
+#endif
+void *
+memmove(void *dp, const void *sp, size_t n)
+{
+	unsigned char *cdp, *csp;
+
+	if (n<=0)
+		return 0;
+	cdp = dp;
+	csp = (unsigned char *)sp;
+	if (cdp < csp) {
+		do {
+			*cdp++ = *csp++;
+		} while (--n);
+	} else {
+		cdp += n;
+		csp += n;
+		do {
+			*--cdp = *--csp;
+		} while (--n);
+	}
+	return 0;
+}