wip

4 files changed, 144 insertions, 0 deletions

diff --git a/compile_commands.json b/compile_commands.json
new file mode 100644
index 0000000..e0edd02
--- /dev/null
+++ b/compile_commands.json
@@ -0,0 +1,7 @@
+[
+    {
+        "command": "cc -c -o main.o main.c", 
+        "directory": "/home/bloodstalker/devi/abbatoir/hole68", 
+        "file": "/home/bloodstalker/devi/abbatoir/hole68/main.c"
+    }
+]
\ No newline at end of file
diff --git a/jni/Android.mk b/jni/Android.mk
new file mode 100644
index 0000000..a479a88
--- /dev/null
+++ b/jni/Android.mk
@@ -0,0 +1,6 @@
+LOCAL_PATH := $(call my-dir)
+
+include $(CLEAR_VARS)
+LOCAL_MODULE := main
+LOCAL_SRC_FILES := ../main.c
+include $(BUILD_EXECUTABLE)
diff --git a/main.c b/main.c
new file mode 100644
index 0000000..b266ad5
--- /dev/null
+++ b/main.c
@@ -0,0 +1,101 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <limits.h>
+#include <sys/ptrace.h>
+#include <sys/socket.h>
+#include <sys/wait.h>
+#include <arpa/inet.h>
+#include <unistd.h>
+
+void dump_memory_region(FILE* pMemFile, unsigned long start_address, long length, int serverSocket)
+{
+    unsigned long address;
+    int pageLength = 4096;
+    unsigned char page[pageLength];
+    fseeko(pMemFile, start_address, SEEK_SET);
+
+    for (address=start_address; address < start_address + length; address += pageLength)
+    {
+        fread(&page, 1, pageLength, pMemFile);
+        if (serverSocket == -1)
+        {
+            // write to stdout
+            fwrite(&page, 1, pageLength, stdout);
+        }
+        else
+        {
+            send(serverSocket, &page, pageLength, 0);
+        }
+    }
+}
+
+int main(int argc, char **argv) {
+
+    if (argc == 2 || argc == 4)
+    {
+        int pid = atoi(argv[1]);
+        long ptraceResult = ptrace(PTRACE_ATTACH, pid, NULL, NULL);
+        if (ptraceResult < 0)
+        {
+            printf("Unable to attach to the pid specified\n");
+            return 1;
+        }
+        wait(NULL);
+
+        char mapsFilename[1024];
+        sprintf(mapsFilename, "/proc/%s/maps", argv[1]);
+        FILE* pMapsFile = fopen(mapsFilename, "r");
+        char memFilename[1024];
+        sprintf(memFilename, "/proc/%s/mem", argv[1]);
+        FILE* pMemFile = fopen(memFilename, "r");
+        int serverSocket = -1;
+        if (argc == 4)
+        {   
+            unsigned int port;
+            int count = sscanf(argv[3], "%d", &port);
+            if (count == 0)
+            {
+                printf("Invalid port specified\n");
+                return 1;
+            }
+            serverSocket = socket(AF_INET, SOCK_STREAM, 0);
+            if (serverSocket == -1)
+            {
+                printf("Could not create socket\n");
+                return 1;
+            }
+            struct sockaddr_in serverSocketAddress;
+            serverSocketAddress.sin_addr.s_addr = inet_addr(argv[2]);
+            serverSocketAddress.sin_family = AF_INET;
+            serverSocketAddress.sin_port = htons(port);
+            if (connect(serverSocket, (struct sockaddr *) &serverSocketAddress, sizeof(serverSocketAddress)) < 0)
+            {
+                printf("Could not connect to server\n");
+                return 1;
+            }
+        }
+        char line[256];
+        while (fgets(line, 256, pMapsFile) != NULL)
+        {
+            unsigned long start_address;
+            unsigned long end_address;
+            sscanf(line, "%08lx-%08lx\n", &start_address, &end_address);
+            dump_memory_region(pMemFile, start_address, end_address - start_address, serverSocket);
+        }
+        fclose(pMapsFile);
+        fclose(pMemFile);
+        if (serverSocket != -1)
+        {
+            close(serverSocket);
+        }
+
+        ptrace(PTRACE_CONT, pid, NULL, NULL);
+        ptrace(PTRACE_DETACH, pid, NULL, NULL);
+    }
+    else
+    {
+        printf("%s <pid>\n", argv[0]);
+        printf("%s <pid> <ip-address> <port>\n", argv[0]);
+        exit(0);
+    }
+}
diff --git a/makefile b/makefile
new file mode 100644
index 0000000..b6f6f40
--- /dev/null
+++ b/makefile
@@ -0,0 +1,30 @@
+TARGET=main
+CC=clang
+CC?=clang
+CC_FLAGS=
+CC_EXTRA?=
+CC_FLAGS+=$(CC_EXTRA)
+
+.DEFAULT:all clean
+
+.PHONY:all clean $(TARGET) help
+
+all:$(TARGET)
+
+.c.o:
+	$(CC) $(CC_FLAGS) -c $< -o $@ 
+
+android:
+	export NDK_PROJECT_PATH=`pwd`
+	ndk-build
+
+$(TARGET): main.o
+	$(CC) $^ $(LD_FLAGS) -o $@
+
+clean:
+	rm -f *.o *~ $(TARGET)
+
+help:
+	@echo "all is the default target"
+	@echo "there is delete."
+	@echo "there is clean."