So I need to know what number a certain system call has , it says that I can check which number a systemcall has in unistd.h file but how/where can I find that file?
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Probably under /usr/include/...
Try find /usr/include/ -name unistd.h, assuming you're actually developing on a linux box!
That will list a bunch of platform-specific variants, etc.
lane
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In terminal type command find /usr/include -name unistd.h this gets you location of unistd.h in your system. Probably it will have some inclusions in /usr/include/bits and other subdirectories.
Pavel Kucera
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