修复getMacAddress可能返回nil的情况

ce2c0e73 · 汪洋 · b00f687e · ce2c0e73
Commit ce2c0e73 authored Oct 27, 2017 by 汪洋
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PhobosUtil.m Pod/Classes/PhobosUtil.m +2 -1

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--- a/Pod/Classes/PhobosUtil.m
+++ b/Pod/Classes/PhobosUtil.m
@@ -363,7 +363,8 @@
    NSString *outstring = [NSString stringWithFormat:@"%02x%02x%02x%02x%02x%02x", *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), *(ptr+5)];
    free(buf);
    
-    return [outstring uppercaseString];
+    NSString *result = [outstring uppercaseString];
+    return result ?: @"";
 }

 /**