Help/Support Instagram application crashes using specific header to hook

[dillidahal 0]

Hello, I'm currently trying to hook into a specific header I got from class-dump for instagram.

 

Header file is https://pastebin.com/Ck1L8MSU

 

@interface logTool: NSObject
+ (void)logDataFromNSString: (NSString *)logContent;
@end

@implementation logTool
+ (void)logDataFromNSString: (NSString *)logContent
{
    NSFileHandle *file;
    NSData *data;

    file = [NSFileHandle fileHandleForUpdatingAtPath: @"/tmp/filelog.txt"];

    [file seekToEndOfFile];

    logContent = [logContent stringByAppendingString:@"\n------------\n"];
    data = [logContent dataUsingEncoding:NSUTF8StringEncoding];

    [file writeData: data];

    [file closeFile];
}
@end

%hook IGAPIRequestBuilder
+ (id)builderWithHTTPMethod:(unsigned long long)arg1 format:(id)arg2 {
    id ret = %orig;
    return ret; 
    }

%end

When I use some other functions aside from builderWithHTTPMethod; it seems to be working. That one specific header is crashing and I have no idea why.

Here's my crash report. https://pastebin.com/Y2NpT4n3

Updated February 15, 2018 by dillidahal