Fix

hoodmane · hoodmane · commit 3250ce46082b · 2025-07-22T14:25:34.000+02:00
diff --git a/Python/emscripten_syscalls.c b/Python/emscripten_syscalls.c
@@ -302,7 +302,7 @@ int __syscall_ioctl(int fd, int request, void* varargs) {
         int flags = fcntl(fd, F_GETFL, 0);
         int nonblock = **((int**)varargs);
         if (flags < 0) {
-            return errno;
+            return -errno;
         }
         if (nonblock) {
             flags |= O_NONBLOCK;
@@ -311,7 +311,7 @@ int __syscall_ioctl(int fd, int request, void* varargs) {
         }
         int res = fcntl(fd, F_SETFL, flags);
         if (res < 0) {
-            return errno;
+            return -errno;
         }
         return res;
     }

Original file line number	Diff line number	Diff line change
`@@ -302,7 +302,7 @@ int __syscall_ioctl(int fd, int request, void* varargs) {`
`302`	`302`	`int flags = fcntl(fd, F_GETFL, 0);`
`303`	`303`	`int nonblock = ((int)varargs);`
`304`	`304`	`if (flags < 0) {`
`305`		`- return errno;`
	`305`	`+ return -errno;`
`306`	`306`	`}`
`307`	`307`	`if (nonblock) {`
`308`	`308`	`flags \|= O_NONBLOCK;`
`@@ -311,7 +311,7 @@ int __syscall_ioctl(int fd, int request, void* varargs) {`
`311`	`311`	`}`
`312`	`312`	`int res = fcntl(fd, F_SETFL, flags);`
`313`	`313`	`if (res < 0) {`
`314`		`- return errno;`
	`314`	`+ return -errno;`
`315`	`315`	`}`
`316`	`316`	`return res;`
`317`	`317`	`}`