Adding upstream version 1:9.6p1.upstream/1%9.6p1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 150 insertions, 0 deletions

diff --git a/regress/modpipe.c b/regress/modpipe.c
new file mode 100644
index 0000000..5f4824b
--- /dev/null
+++ b/regress/modpipe.c
@@ -0,0 +1,150 @@
+/*
+ * Copyright (c) 2012 Damien Miller <djm@mindrot.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/* $OpenBSD: modpipe.c,v 1.6 2013/11/21 03:16:47 djm Exp $ */
+
+#include "includes.h"
+
+#include <sys/types.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#include <errno.h>
+#ifdef HAVE_ERR_H
+# include <err.h>
+#endif
+#include "openbsd-compat/getopt_long.c"
+
+static void
+usage(void)
+{
+	fprintf(stderr, "Usage: modpipe -w [-m modspec ...] < in > out\n");
+	fprintf(stderr, "modspec is one of:\n");
+	fprintf(stderr, "    xor:offset:value       - XOR \"value\" at \"offset\"\n");
+	fprintf(stderr, "    andor:offset:val1:val2 - AND \"val1\" then OR \"val2\" at \"offset\"\n");
+	exit(1);
+}
+
+#define MAX_MODIFICATIONS 256
+struct modification {
+	enum { MOD_XOR, MOD_AND_OR } what;
+	unsigned long long offset;
+	u_int8_t m1, m2;
+};
+
+static void
+parse_modification(const char *s, struct modification *m)
+{
+	char what[16+1];
+	int n, m1, m2;
+
+	bzero(m, sizeof(*m));
+	if ((n = sscanf(s, "%16[^:]%*[:]%llu%*[:]%i%*[:]%i",
+	    what, &m->offset, &m1, &m2)) < 3)
+		errx(1, "Invalid modification spec \"%s\"", s);
+	if (strcasecmp(what, "xor") == 0) {
+		if (n > 3)
+			errx(1, "Invalid modification spec \"%s\"", s);
+		if (m1 < 0 || m1 > 0xff)
+			errx(1, "Invalid XOR modification value");
+		m->what = MOD_XOR;
+		m->m1 = m1;
+	} else if (strcasecmp(what, "andor") == 0) {
+		if (n != 4)
+			errx(1, "Invalid modification spec \"%s\"", s);
+		if (m1 < 0 || m1 > 0xff)
+			errx(1, "Invalid AND modification value");
+		if (m2 < 0 || m2 > 0xff)
+			errx(1, "Invalid OR modification value");
+		m->what = MOD_AND_OR;
+		m->m1 = m1;
+		m->m2 = m2;
+	} else
+		errx(1, "Invalid modification type \"%s\"", what);
+}
+
+int
+main(int argc, char **argv)
+{
+	int ch;
+	u_char buf[8192];
+	size_t total;
+	ssize_t r, s, o;
+	struct modification mods[MAX_MODIFICATIONS];
+	u_int i, wflag = 0, num_mods = 0;
+
+	while ((ch = getopt(argc, argv, "wm:")) != -1) {
+		switch (ch) {
+		case 'm':
+			if (num_mods >= MAX_MODIFICATIONS)
+				errx(1, "Too many modifications");
+			parse_modification(optarg, &(mods[num_mods++]));
+			break;
+		case 'w':
+			wflag = 1;
+			break;
+		default:
+			usage();
+			/* NOTREACHED */
+		}
+	}
+	for (total = 0;;) {
+		r = s = read(STDIN_FILENO, buf, sizeof(buf));
+		if (r == 0)
+			break;
+		if (r < 0) {
+			if (errno == EAGAIN || errno == EINTR)
+				continue;
+			err(1, "read");
+		}
+		for (i = 0; i < num_mods; i++) {
+			if (mods[i].offset < total ||
+			    mods[i].offset >= total + s)
+				continue;
+			switch (mods[i].what) {
+			case MOD_XOR:
+				buf[mods[i].offset - total] ^= mods[i].m1;
+				break;
+			case MOD_AND_OR:
+				buf[mods[i].offset - total] &= mods[i].m1;
+				buf[mods[i].offset - total] |= mods[i].m2;
+				break;
+			}
+		}
+		for (o = 0; o < s; o += r) {
+			r = write(STDOUT_FILENO, buf, s - o);
+			if (r == 0)
+				break;
+			if (r < 0) {
+				if (errno == EAGAIN || errno == EINTR)
+					continue;
+				err(1, "write");
+			}
+		}
+		total += s;
+	}
+	/* Warn if modifications not reached in input stream */
+	r = 0;
+	for (i = 0; wflag && i < num_mods; i++) {
+		if (mods[i].offset < total)
+			continue;
+		r = 1;
+		fprintf(stderr, "modpipe: warning - mod %u not reached\n", i);
+	}
+	return r;
+}