cmd.exe: Implement a basic 'more'.
This implements a basic more, eg 'dir | more' or 'more file.c'
but it does not support the flags or keys which can control it.
Basically its not worth implementing those, as in some modes
we cannot read a single key, we have to wait for <enter> anyway.
diff --git a/programs/cmd/builtins.c b/programs/cmd/builtins.c
index 3d4f034..e7398fd 100644
--- a/programs/cmd/builtins.c
+++ b/programs/cmd/builtins.c
@@ -1689,6 +1689,115 @@
}
/****************************************************************************
+ * WCMD_more
+ *
+ * Output either a file or stdin to screen in pages
+ */
+
+void WCMD_more (char *command) {
+
+ int argno = 0;
+ char *argN = command;
+ BOOL useinput = FALSE;
+ char moreStr[100];
+ char moreStrPage[100];
+ char buffer[512];
+ DWORD count;
+
+ /* Prefix the NLS more with '-- ', then load the text */
+ errorlevel = 0;
+ strcpy(moreStr, "-- ");
+ LoadString (hinst, WCMD_MORESTR, &moreStr[3], sizeof(moreStr)-3);
+
+ if (param1[0] == 0x00) {
+
+ /* Wine implements pipes via temporary files, and hence stdin is
+ effectively reading from the file. This means the prompts for
+ more are satistied by the next line from the input (file). To
+ avoid this, ensure stdin is to the console */
+ HANDLE hstdin = GetStdHandle(STD_INPUT_HANDLE);
+ HANDLE hConIn = CreateFile("CONIN$", GENERIC_READ | GENERIC_WRITE,
+ FILE_SHARE_READ, NULL, OPEN_EXISTING,
+ FILE_ATTRIBUTE_NORMAL, 0);
+ SetStdHandle(STD_INPUT_HANDLE, hConIn);
+
+ /* Warning: No easy way of ending the stream (ctrl+z on windows) so
+ once you get in this bit unless due to a pipe, its going to end badly... */
+ useinput = TRUE;
+ sprintf(moreStrPage, "%s --\n", moreStr);
+
+ WCMD_enter_paged_mode(moreStrPage);
+ while (ReadFile (hstdin, buffer, sizeof(buffer)-1, &count, NULL)) {
+ if (count == 0) break; /* ReadFile reports success on EOF! */
+ buffer[count] = 0;
+ WCMD_output_asis (buffer);
+ }
+ WCMD_leave_paged_mode();
+
+ /* Restore stdin to what it was */
+ SetStdHandle(STD_INPUT_HANDLE, hstdin);
+ CloseHandle(hConIn);
+
+ return;
+ } else {
+ BOOL needsPause = FALSE;
+
+ /* Loop through all args */
+ WCMD_enter_paged_mode(moreStrPage);
+
+ while (argN) {
+ char *thisArg = WCMD_parameter (command, argno++, &argN);
+ HANDLE h;
+
+ if (!argN) break;
+
+ if (needsPause) {
+
+ /* Wait */
+ sprintf(moreStrPage, "%s (100%%) --\n", moreStr);
+ WCMD_leave_paged_mode();
+ WCMD_output_asis(moreStrPage);
+ ReadFile (GetStdHandle(STD_INPUT_HANDLE), buffer, sizeof(buffer), &count, NULL);
+ WCMD_enter_paged_mode(moreStrPage);
+ }
+
+
+ WINE_TRACE("more: Processing arg '%s'\n", thisArg);
+ h = CreateFile (thisArg, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING,
+ FILE_ATTRIBUTE_NORMAL, NULL);
+ if (h == INVALID_HANDLE_VALUE) {
+ WCMD_print_error ();
+ WCMD_output ("%s :Failed\n", thisArg);
+ errorlevel = 1;
+ } else {
+ ULONG64 curPos = 0;
+ ULONG64 fileLen = 0;
+ WIN32_FILE_ATTRIBUTE_DATA fileInfo;
+
+ /* Get the file size */
+ GetFileAttributesEx(thisArg, GetFileExInfoStandard, (void*)&fileInfo);
+ fileLen = (((ULONG64)fileInfo.nFileSizeHigh) << 32) + fileInfo.nFileSizeLow;
+
+ needsPause = TRUE;
+ while (ReadFile (h, buffer, sizeof(buffer), &count, NULL)) {
+ if (count == 0) break; /* ReadFile reports success on EOF! */
+ buffer[count] = 0;
+ curPos += count;
+
+ /* Update % count (would be used in WCMD_output_asis as prompt) */
+ sprintf(moreStrPage, "%s (%2.2d%%) --\n", moreStr, (int) min(99, (curPos * 100)/fileLen));
+
+ WCMD_output_asis (buffer);
+ }
+ CloseHandle (h);
+ }
+ }
+
+ WCMD_leave_paged_mode();
+ }
+}
+
+/****************************************************************************
* WCMD_verify
*
* Display verify flag.
