libc

my libc
git clone git://git.evenfri.pw/libc.git
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close.c (257B)

      1 /*
      2  * close.c - close system call
      3  * Copyright (C) 2026. All rights reserved.
      4  */
      5 
      6 #include "libc.h"
      7 
      8 int close(int fd) {
      9   long ret = syscall(SYS_close, (long)fd, 0, 0, 0, 0, 0);
     10 
     11   if (ret < 0) {
     12     errno = -ret;
     13     return -1;
     14   }
     15 
     16   return (int)ret;
     17 }