File 0588-erts-Fix-open_port-spawn-with-spaces-in-PA... of Package erlang

Overview Repositories Revisions Requests Users Attributes Meta

File 0588-erts-Fix-open_port-spawn-with-spaces-in-PATH-on-wind.patch of Package erlang (Revision a348a67ba66c7a948f8268ea2bae17d0)

Currently displaying revision a348a67ba66c7a948f8268ea2bae17d0 , Show latest

From d763775d5b9a0169644bd814c4bed14f64a93031 Mon Sep 17 00:00:00 2001
From: Sverker Eriksson <sverker@erlang.org>
Date: Tue, 25 Oct 2022 14:14:11 +0200
Subject: [PATCH 1/2] erts: Fix open_port spawn with spaces in PATH on windows

---
 erts/emulator/sys/win32/sys.c | 30 ++++++++++++++++--------------
 1 file changed, 16 insertions(+), 14 deletions(-)

diff --git a/erts/emulator/sys/win32/sys.c b/erts/emulator/sys/win32/sys.c
index c3505eddc5..ef6ae1bed2 100644
--- a/erts/emulator/sys/win32/sys.c
+++ b/erts/emulator/sys/win32/sys.c
@@ -1542,7 +1542,10 @@ create_child_process
     HANDLE hProcess = GetCurrentProcess();
     STARTUPINFOW siStartInfo = {0};
     wchar_t execPath[MAX_PATH];
-    BOOL requote = FALSE;
+    BOOL requote; // ToDo: REMOVE ME
+    BOOL need_quote;
+    int quotedLen;
+    wchar_t *ptr;
 
     *errno_return = -1;
     siStartInfo.cb = sizeof(STARTUPINFOW);
@@ -1557,7 +1560,6 @@ create_child_process
 	 * contain spaces).
 	 */
 	cmdlength = parse_command(origcmd);
-	newcmdline = (wchar_t *) erts_alloc(ERTS_ALC_T_TMP, (MAX_PATH+wcslen(origcmd)-cmdlength)*sizeof(wchar_t));
 	thecommand = (wchar_t *) erts_alloc(ERTS_ALC_T_TMP, (cmdlength+1)*sizeof(wchar_t));
 	wcsncpy(thecommand, origcmd, cmdlength);
 	thecommand[cmdlength] = L'\0';
@@ -1567,12 +1569,16 @@ create_child_process
             application_type(thecommand, execPath, TRUE, TRUE, errno_return, &requote);
 	DEBUGF(("application_type returned for (%S) is %d\n", thecommand, applType));
 	erts_free(ERTS_ALC_T_TMP, (void *) thecommand);
-	if (applType == APPL_NONE) {
-	    erts_free(ERTS_ALC_T_TMP,newcmdline);
+	if (applType == APPL_NONE) { 
 	    return FALSE;
 	}
-	newcmdline[0] = L'\0';
 
+        quotedLen = escape_and_quote(execPath, NULL, &need_quote);
+        newcmdline = (wchar_t *)
+            erts_alloc(ERTS_ALC_T_TMP,
+                       (11+quotedLen+wcslen(origcmd)-cmdlength)*sizeof(wchar_t));
+
+        ptr = newcmdline;
 	if (applType == APPL_DOS) {
 	    /*
 	     * Under NT, 16-bit DOS applications will not run unless they
@@ -1584,7 +1590,8 @@ create_child_process
 	    siStartInfo.wShowWindow = SW_HIDE;
 	    siStartInfo.dwFlags |= STARTF_USESHOWWINDOW;
 	    createFlags = CREATE_NEW_CONSOLE;
-	    wcscat(newcmdline, L"cmd.exe /c ");
+	    wcscpy(newcmdline, L"cmd.exe /c ");
+            ptr += 11;
 	} else if (hide) {
 	    DEBUGF(("hiding window\n"));
 	    siStartInfo.wShowWindow = SW_HIDE;
@@ -1592,14 +1599,9 @@ create_child_process
 	    createFlags = 0;
 	}
 
-        if (requote) {
-            wcscat(newcmdline, L"\"");
-        }
-	wcscat(newcmdline, execPath);
-        if (requote) {
-            wcscat(newcmdline, L"\"");
-        }
-	wcscat(newcmdline, origcmd+cmdlength);
+        ptr += escape_and_quote(execPath, ptr, &need_quote);
+
+	wcscpy(ptr, origcmd+cmdlength);
 	DEBUGF(("Creating child process: %S, createFlags = %d\n", newcmdline, createFlags));
 	ok = CreateProcessW((applType == APPL_DOS) ? appname : execPath,
 			    newcmdline,
-- 
2.35.3

Places

File 0588-erts-Fix-open_port-spawn-with-spaces-in-PATH-on-wind.patch of Package erlang (Revision a348a67ba66c7a948f8268ea2bae17d0)

Places