From: Gurusamy Sarathy <gsar@cpan.org>
Date: Mon, 9 Oct 2000 18:30:09 +0000 (+0000)
Subject: on Windows, LoadLibrary() could load an extension DLL multiple
X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=32f99636ca70a0114499260dd425570a227647eb;p=p5sagit%2Fp5-mst-13.2.git

on Windows, LoadLibrary() could load an extension DLL multiple
times if forward slashes are used in the path

p4raw-id: //depot/perl@7171
---

diff --git a/win32/win32.c b/win32/win32.c
index 67e8952..65d5f66 100644
--- a/win32/win32.c
+++ b/win32/win32.c
@@ -3564,6 +3564,25 @@ win32_dynaload(const char* filename)
 {
     dTHXo;
     HMODULE hModule;
+    char buf[MAX_PATH+1];
+    char *first;
+
+    /* LoadLibrary() doesn't recognize forward slashes correctly,
+     * so turn 'em back. */
+    first = strchr(filename, '/');
+    if (first) {
+	STRLEN len = strlen(filename);
+	if (len <= MAX_PATH) {
+	    strcpy(buf, filename);
+	    filename = &buf[first - filename];
+	    while (*filename) {
+		if (*filename == '/')
+		    *(char*)filename = '\\';
+		++filename;
+	    }
+	    filename = buf;
+	}
+    }
     if (USING_WIDE()) {
 	WCHAR wfilename[MAX_PATH+1];
 	A2WHELPER(filename, wfilename, sizeof(wfilename));