webkit-gtk: fix two bugs in procfs handling

[Thomas Klausner (via pkgsrc-wip) <commit-notify%pkgsrc.org@localhost>]

Module Name:	pkgsrc-wip
Committed By:	Thomas Klausner <wiz%NetBSD.org@localhost>
Pushed By:	wiz
Date:		Fri Apr 24 17:51:29 2026 +0200
Changeset:	9658a18dacc98c0291b4585520c12fee57d233a0

Added Files:
	webkit-gtk/patches/patch-Source_WTF_wtf_glib_FileSystemGlib.cpp

Log Message:
webkit-gtk: fix two bugs in procfs handling

To see a diff of this commit:
https://wip.pkgsrc.org/cgi-bin/gitweb.cgi?p=pkgsrc-wip.git;a=commitdiff;h=9658a18dacc98c0291b4585520c12fee57d233a0

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

diffstat:
 .../patch-Source_WTF_wtf_glib_FileSystemGlib.cpp   | 30 ++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diffs:
diff --git a/webkit-gtk/patches/patch-Source_WTF_wtf_glib_FileSystemGlib.cpp b/webkit-gtk/patches/patch-Source_WTF_wtf_glib_FileSystemGlib.cpp
new file mode 100644
index 0000000000..530cf206bc
--- /dev/null
+++ b/webkit-gtk/patches/patch-Source_WTF_wtf_glib_FileSystemGlib.cpp
@@ -0,0 +1,30 @@
+$NetBSD$
+
+The file name link has a different name in NetBSD's procfs than on Linux.
+Avoid providing zero-length paths.
+
+--- Source/WTF/wtf/glib/FileSystemGlib.cpp.orig	2026-04-23 20:09:38.532658486 +0000
++++ Source/WTF/wtf/glib/FileSystemGlib.cpp
+@@ -89,12 +89,21 @@ CString currentExecutablePath()
+         return { };
+     return CString(unsafeMakeSpan(readBuffer, static_cast<size_t>(result)));
+ }
++#elif OS(NETBSD)
++CString currentExecutablePath()
++{
++    static char readLinkBuffer[PATH_MAX];
++    ssize_t result = readlink("/proc/curproc/exe", readLinkBuffer, PATH_MAX);
++    if (result <= 0)
++        return { };
++    return CString(unsafeMakeSpan(readLinkBuffer, static_cast<size_t>(result)));
++}
+ #elif OS(UNIX)
+ CString currentExecutablePath()
+ {
+     static char readLinkBuffer[PATH_MAX];
+     ssize_t result = readlink("/proc/curproc/file", readLinkBuffer, PATH_MAX);
+-    if (result == -1)
++    if (result <= 0)
+         return { };
+     return CString(unsafeMakeSpan(readLinkBuffer, static_cast<size_t>(result)));
+ }