memzap

commit 2b913b2400645b5aab68f127cd84f4ea1e16774b
parent 9448d34eeb67827d84dd1b46a0c972513add361f
Author: sin <sin@2f30.org>
Date:   Fri,  1 Mar 2013 14:46:33 +0000

ops: Add openbsd port

This has *not* been tested.

Diffstat:
A
Makefile.openbsd
 | 
34
++++++++++++++++++++++++++++++++++
A
openbsd_ops.c
 | 
41
+++++++++++++++++++++++++++++++++++++++++

2 files changed, 75 insertions(+), 0 deletions(-)
diff --git a/Makefile.openbsd b/Makefile.openbsd
@@ -0,0 +1,34 @@
+BIN = memzap
+VER = 0.1
+SRC = memzap.c mem.c utils.c md5.c openbsd_ops.c
+OBJ = ${SRC:.c=.o}
+
+PREFIX = /usr
+
+CC = gcc
+
+INCS = -I/usr/local/include
+LIBS = -L/usr/local/lib
+
+CFLAGS += -g -O3 -Wall -Wextra -Wunused -DVERSION=\"${VER}\" ${INCS}
+LDFLAGS +=
+
+${BIN}: ${OBJ}
+	${CC} ${CFLAGS} ${LDFLAGS} -o $@ ${OBJ}
+
+%.o: %.c
+	${CC} ${CFLAGS} -c -o $@ $<
+
+clean:
+	rm -rf ${BIN} ${OBJ}
+
+all: memzap
+
+install:
+	cp -f ${BIN} ${PREFIX}/bin
+	chmod 755 ${PREFIX}/bin/${BIN}
+
+uninstall:
+	rm -f ${PREFIX}/bin/${BIN}
+
+.PHONY: all clean install uninstall
diff --git a/openbsd_ops.c b/openbsd_ops.c
@@ -0,0 +1,41 @@
+/* See LICENSE file for copyright and license details. */
+
+#include "data.h"
+
+int
+traceme(void)
+{
+	int ret;
+
+	ret = ptrace(PT_TRACE_ME, 0, 0, 0);
+	if (ret < 0)
+		err(1, "ptrace");
+	return ret;
+}
+
+int
+single_step(pid_t pid)
+{
+	int ret;
+
+	ret = ptrace(PT_STEP, pid, 0, 0);
+	if (ret < 0)
+		err(1, "ptrace");
+	return ret;
+}
+
+void
+readmem(pid_t pid, void *buf, void *offset, size_t size)
+{
+	struct ptrace_io_desc pi_desc;
+	int ret;
+
+	pi_desc.piod_op = PIOD_READ_D;
+	pi_desc.piod_offs = offset;
+	pi_desc.piod_addr = buf;
+	pi_desc.piod_len = size;
+
+	ret = ptrace(PT_IO, pid, (caddr_t)&pi_desc, 0);
+	if (ret < 0)
+		err(1, "ptrace");
+}