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Implement >> style (append) output redirection.

This commit is contained in:
Ferenc Wagner 2003-09-11 20:41:26 +00:00 committed by Alexandre Julliard
parent 643b7c97ac
commit b129a1489f
1 changed files with 14 additions and 3 deletions
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17
programs/wcmd/wcmdmain.c
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@ -258,7 +258,7 @@ void WCMD_process_command (char *command)
{ {
char *cmd, *p; char *cmd, *p;
int status, i, len; int status, i, len;
DWORD count; DWORD count, creationDisposition;
HANDLE old_stdin = 0, old_stdout = 0, h; HANDLE old_stdin = 0, old_stdout = 0, h;
char *whichcmd; char *whichcmd;
SECURITY_ATTRIBUTES sa; SECURITY_ATTRIBUTES sa;
@ -307,16 +307,27 @@ void WCMD_process_command (char *command)
SetStdHandle (STD_INPUT_HANDLE, h); SetStdHandle (STD_INPUT_HANDLE, h);
} }
if ((p = strchr(cmd,'>')) != NULL) { if ((p = strchr(cmd,'>')) != NULL) {
h = CreateFile (WCMD_parameter (++p, 0, NULL), GENERIC_WRITE, 0, &sa, CREATE_ALWAYS, *p++ = '\0';
if ('>' == *p) {
creationDisposition = OPEN_ALWAYS;
p++;
}
else {
creationDisposition = CREATE_ALWAYS;
}
h = CreateFile (WCMD_parameter (p, 0, NULL), GENERIC_WRITE, 0, &sa, creationDisposition,
FILE_ATTRIBUTE_NORMAL, NULL); FILE_ATTRIBUTE_NORMAL, NULL);
if (h == INVALID_HANDLE_VALUE) { if (h == INVALID_HANDLE_VALUE) {
WCMD_print_error (); WCMD_print_error ();
HeapFree( GetProcessHeap(), 0, cmd ); HeapFree( GetProcessHeap(), 0, cmd );
return; return;
} }
if (SetFilePointer (h, 0, NULL, FILE_END) ==
INVALID_SET_FILE_POINTER) {
WCMD_print_error ();
}
old_stdout = GetStdHandle (STD_OUTPUT_HANDLE); old_stdout = GetStdHandle (STD_OUTPUT_HANDLE);
SetStdHandle (STD_OUTPUT_HANDLE, h); SetStdHandle (STD_OUTPUT_HANDLE, h);
*--p = '\0';
} }
if ((p = strchr(cmd,'<')) != NULL) *p = '\0'; if ((p = strchr(cmd,'<')) != NULL) *p = '\0';