Replace allocPrintZ with allocPrint and an explcit null terminator

Author: isaacvando

src/cli/main.zig

@@ -597,7 +597,7 @@ fn runWithWindowsHandleInheritance(gpa: Allocator, exe_path: []const u8, shm_han
 
     // Create command line with handle and size as arguments
     const handle_uint = @intFromPtr(shm_handle.fd);
-    const cmd_line = try std.fmt.allocPrintZ(gpa, "\"{s}\" {} {}", .{ exe_path, handle_uint, shm_handle.size });
+    const cmd_line = try std.fmt.allocPrint(gpa, "\"{s}\" {} {}\x00", .{ exe_path, handle_uint, shm_handle.size });
     defer gpa.free(cmd_line);
     const cmd_line_w = try std.unicode.utf8ToUtf16LeAllocZ(gpa, cmd_line);
     defer gpa.free(cmd_line_w);

src/ipc/platform.zig

@@ -198,17 +198,17 @@ pub fn createMapping(size: usize) SharedMemoryError!Handle {
             };
             defer std.heap.page_allocator.free(random_name);
 
-            const shm_name = std.fmt.allocPrintZ(
+            const shm_name = std.fmt.allocPrint(
                 std.heap.page_allocator,
-                "{s}",
+                "{s}\x00",
                 .{random_name},
             ) catch {
                 return error.OutOfMemory;
             };
             defer std.heap.page_allocator.free(shm_name);
-
+            const shm_name_null_terminated = shm_name[0 .. shm_name.len - 1 :0];
             const fd = posix.shm_open(
-                shm_name.ptr,
+                shm_name_null_terminated,
                 @as(u32, @bitCast(std.posix.O{ .ACCMODE = .RDWR, .CREAT = true, .EXCL = true })),
                 0o600,
             );
@@ -218,7 +218,7 @@ pub fn createMapping(size: usize) SharedMemoryError!Handle {
             }
 
             // Immediately unlink so it gets cleaned up when all references are closed
-            _ = posix.shm_unlink(shm_name.ptr);
+            _ = posix.shm_unlink(shm_name_null_terminated);
 
             // Set the size of the shared memory
             std.posix.ftruncate(fd, size) catch {
@@ -254,13 +254,13 @@ pub fn openMapping(allocator: std.mem.Allocator, name: []const u8) SharedMemoryE
             return handle.?;
         },
         .macos, .freebsd, .openbsd, .netbsd => {
-            const shm_name = std.fmt.allocPrintZ(allocator, "/{s}", .{name}) catch {
+            const shm_name = std.fmt.allocPrint(allocator, "/{s}\x00", .{name}) catch {
                 return error.OutOfMemory;
             };
             defer allocator.free(shm_name);
-
+            const shm_name_null_terminated = shm_name[0 .. shm_name.len - 1 :0];
             const fd = posix.shm_open(
-                shm_name.ptr,
+                shm_name_null_terminated,
                 @as(u32, @bitCast(std.posix.O{ .ACCMODE = .RDWR })),
                 0,
             );