From: Jay Freeman (saurik) <saurik@saurik.com>
Date: Wed, 23 Dec 2015 16:31:40 +0000 (-0800)
Subject: Provide access to errno (though not from console).
X-Git-Tag: v0.9.590~142
X-Git-Url: https://git.saurik.com/cycript.git/commitdiff_plain/19e13c2de7065201c9a5a54e9a1a5409ed4a4cdc

Provide access to errno (though not from console).
---

diff --git a/Execute.cpp b/Execute.cpp
index 7b3f2f2..be79e00 100644
--- a/Execute.cpp
+++ b/Execute.cpp
@@ -1147,6 +1147,9 @@ extern "C" const char *CYBridgeHash(CYPool &pool, CYUTF8String name) {
 }
 
 static bool All_hasProperty(JSContextRef context, JSObjectRef object, JSStringRef property) {
+    if (JSStringIsEqualToUTF8CString(property, "errno"))
+        return true;
+
     JSObjectRef global(CYGetGlobalObject(context));
     JSObjectRef cycript(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Cycript"))));
     JSObjectRef alls(CYCastJSObject(context, CYGetProperty(context, cycript, CYJSString("alls"))));
@@ -1164,6 +1167,9 @@ static bool All_hasProperty(JSContextRef context, JSObjectRef object, JSStringRe
 }
 
 static JSValueRef All_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
+    if (JSStringIsEqualToUTF8CString(property, "errno"))
+        return CYCastJSValue(context, errno);
+
     JSObjectRef global(CYGetGlobalObject(context));
     JSObjectRef cycript(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Cycript"))));
     JSObjectRef alls(CYCastJSObject(context, CYGetProperty(context, cycript, CYJSString("alls"))));
diff --git a/libcycript.cy b/libcycript.cy
index a079383..79a1735 100644
--- a/libcycript.cy
+++ b/libcycript.cy
@@ -159,7 +159,7 @@ require.resolve = function(name) {
 
 var _syscall = function(value) {
     if (value == -1)
-        throw new Error("system call failed");
+        throw new Error(strerror(errno));
 };
 
 var info = *new (struct stat);