updateHEADmaster

1 files changed, 116 insertions, 0 deletions

diff --git a/ramdump.c b/ramdump.c
new file mode 100644
index 0000000..6e6dc08
--- /dev/null
+++ b/ramdump.c
@@ -0,0 +1,116 @@
+
+/*first line is intentionally left blank*/
+/***********************************************************************************************************/
+#include <arpa/inet.h>
+#include <inttypes.h>
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#if  defined(_WIN32) || defined(_WIN64) || defined(__CYGWIN__)
+#include <process.h>
+#include <tlhelp32.h>
+#include <windows.h>
+#endif
+#if defined(__linux__) || defined(__ANDROID__)
+#include <sys/ptrace.h>
+#include <sys/socket.h>
+#include <sys/wait.h>
+#endif
+/***********************************************************************************************************/
+#if  defined(_WIN32) || defined(_WIN64) || defined(__CYGWIN__)
+DWORD access = PRCOESS_VM_READ | PROCESS_QUERY_INFORMATION | PRCOESS_VM_WRITE | PRCOESS_VM_OPERATION;
+HANDLE proc = OpenProcess(access, FALSE, pid);
+void dump_memory_region() {
+  void* addr;
+  size_t written;
+  ReadProcessMemory(proc, addr, &value, sizeof(value), &written);
+}
+
+void write_memory_region(proc, addr, &value, sizeof(value), &written) {}
+#endif
+
+#if defined(__linux__) || defined(__ANDROID__)
+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) {
+      fwrite(&page, 1, pageLength, stdout);
+    } else {
+      send(serverSocket, &page, pageLength, 0);
+    }
+  }
+}
+#endif
+
+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 2;
+        }
+
+        serverSocket = socket(AF_INET, SOCK_STREAM, 0);
+        if (serverSocket == -1) {
+          printf("Could not create socket\n");
+          return 3;
+        }
+        
+        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 4;
+        }
+      }
+      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);
+  }
+}
+/***********************************************************************************************************/
+/*last line is intentionally left blank*/
+