static char *
ExtractCommandLineFromAddressSpaceFile(psinfo_t *procInfo) //IN: psinfo struct
{
   int argc;
   int i;
   char tempPath[MAXPATHLEN];
   char *buf;
   FileIODescriptor asFd;
   FileIOResult res;
   DynBuf cmdLine;
   DynBufArray args;
   pid_t pid;

   FileIO_Invalidate(&asFd);
   pid = procInfo->pr_pid;

   if (Str_Snprintf(tempPath,
                sizeof tempPath,
                "/proc/%"FMT64"d/as",
                (int64_t)pid) == -1) {
      /* This should not happen. MAXPATHLEN should be large enough. */
      ASSERT(FALSE);
   }
   res = FileIO_Open(&asFd,
                     tempPath,
                     FILEIO_OPEN_ACCESS_READ,
                     FILEIO_OPEN);
   if (res != FILEIO_SUCCESS) {
      Warning("Could not open address space file for pid %"FMT64"d, %s\n",
              (int64_t)pid,
              FileIO_MsgError(res));
      return NULL;
   }

   buf = NULL;
   if (ReadArgsFromAddressSpaceFile(asFd, procInfo, &args)) {
      /* Concatenate the strings in args into cmdLine. */
      DynBuf_Init(&cmdLine);
      argc = DynBufArray_Count(&args);
      for (i = 0; i < argc; i++) {
         buf = DynBuf_Get(DynBufArray_AddressOf(&args, i));
         DynBuf_Append(&cmdLine, buf, strlen(buf));
         if (i + 1 < argc) {
            DynBuf_Append(&cmdLine, " ", 1);
         }
         DynBuf_Destroy(DynBufArray_AddressOf(&args, i));
      }
      DynBuf_AppendString(&cmdLine,"");
      DynBufArray_Destroy(&args);
      DynBuf_Trim(&cmdLine);
      buf = DynBuf_Detach(&cmdLine);
      DynBuf_Destroy(&cmdLine);
   }
   FileIO_Close(&asFd);
   return buf;
}
static int
SNEForEachCallback(const char *key,     // IN: environment variable
                   void *value,         // IN: environment value
                   void *clientData)    // IN/OUT: DynBuf container (SNEBufs)
{
   DynBuf *nativeEnvironStrings = ((SNEBufs *)clientData)->nativeEnvironStrings;
   DynBuf *nativeEnvironOffsets = ((SNEBufs *)clientData)->nativeEnvironOffsets;
   size_t itemSize;
   char *itemBuf;
   off_t itemOffset;

   /*
    * A NULL value indicates that this variable is not to be set.
    */
   if (value == NULL) {
      return 0;
   }

   /* Determine the length of the new string inc. '=' delimiter and NUL. */
   itemSize = strlen(key) + strlen(value) + sizeof "=";
   itemBuf = Util_SafeMalloc(itemSize);

   /* Create new "key=value" string. */
   snprintf(itemBuf, itemSize, "%s=%s", key, (char *)value);

   ASSERT_MEM_ALLOC(DynBuf_AppendString(nativeEnvironStrings, itemBuf));

   /*
    * Get the relative offset of our newly added string (relative to the DynBuf's base
    * address), and then append that to nativeEnvironOffsets.
    */
   itemOffset = DynBuf_GetSize(nativeEnvironStrings) - itemSize;
   ASSERT_MEM_ALLOC(DynBuf_Append(nativeEnvironOffsets, &itemOffset, sizeof itemOffset));

   free(itemBuf);

   return 0;
}
Beispiel #3
0
static char *
ExtractCommandLineFromAddressSpaceFile(psinfo_t *procInfo, //IN: psinfo struct
                                       char **procCmdName) //OUT: command name
{
   int argc;
   int i;
   char tempPath[MAXPATHLEN];
   char *buf;
   FileIODescriptor asFd;
   FileIOResult res;
   DynBuf cmdLine;
   DynBufArray args;
   pid_t pid;
   char *cmdNameBegin;

   if (NULL != procCmdName) {
      *procCmdName = NULL;
   }
   FileIO_Invalidate(&asFd);
   pid = procInfo->pr_pid;

   if (Str_Snprintf(tempPath,
                sizeof tempPath,
                "/proc/%"FMT64"d/as",
                (int64_t)pid) == -1) {
      /* This should not happen. MAXPATHLEN should be large enough. */
      ASSERT(FALSE);
   }
   res = FileIO_Open(&asFd,
                     tempPath,
                     FILEIO_OPEN_ACCESS_READ,
                     FILEIO_OPEN);
   if (res != FILEIO_SUCCESS) {
      Warning("Could not open address space file for pid %"FMT64"d, %s\n",
              (int64_t)pid,
              FileIO_MsgError(res));
      return NULL;
   }

   buf = NULL;
   if (ReadArgsFromAddressSpaceFile(asFd, procInfo, &args)) {
      /* Concatenate the strings in args into cmdLine. */
      DynBuf_Init(&cmdLine);
      argc = DynBufArray_Count(&args);
      for (i = 0; i < argc; i++) {
         buf = DynBuf_Get(DynBufArray_AddressOf(&args, i));
         DynBuf_Append(&cmdLine, buf, strlen(buf));
         if (i + 1 < argc) {
            DynBuf_Append(&cmdLine, " ", 1);
         }
         if (NULL != procCmdName && 0 == i) {
            /*
             * Store the command name of the process.
             * Find the last path separator, to get the cmd name.
             * If no separator is found, then use the whole name.
             */
            cmdNameBegin = strrchr(buf, '/');
            if (NULL == cmdNameBegin) {
               cmdNameBegin = buf;
            } else {
               /*
                * Skip over the last separator.
                */
               cmdNameBegin++;
            }
            *procCmdName = Unicode_Alloc(cmdNameBegin, STRING_ENCODING_DEFAULT);
         }
         DynBuf_Destroy(DynBufArray_AddressOf(&args, i));
      }
      DynBuf_AppendString(&cmdLine,"");
      DynBufArray_Destroy(&args);
      DynBuf_Trim(&cmdLine);
      buf = DynBuf_Detach(&cmdLine);
      DynBuf_Destroy(&cmdLine);
   }
   FileIO_Close(&asFd);
   return buf;
}