kc3-lang/libressl/include/stdio.h

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• Hash : e83c30c1
  Author :
  Date : 2014-11-20T07:32:15
  

  monkey patch more POSIX-like behavior out of winsock 2
  
  Windows sockets functions look on the outside like they behave similarly
  to POSIX functions, but there are many subtle and glaring differences,
  including errors reported via WSAGetLastError, read, write, and close do
  not work on sockets, setsockopt takes a (char *) rather than (void *),
  etc.
  
  This header implements wrappers that coerce more POSIX-like behavior
  from these functions, making portable code easier to develop.
  
  BENEFITS:
  One does not necessarily need to sprinkle #ifdefs around code to handle
  the Windows and non-Windows behavior when porting code.
  
  CAVEATS:
  There may be performance implications with the 'mother-may-I'
  approach to determining if a descriptor is a socket or a file.
  
  The errno mappings are not 100% what one might expect compared to POSIX
  since there were not always good 1:1 equivalents from the WSA errors.
  

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• include/stdio.h

• /*
   * Public domain
   * stdio.h compatibility shim
   */
  
  #include_next <stdio.h>
  
  #ifndef LIBCRYPTOCOMPAT_STDIO_H
  #define LIBCRYPTOCOMPAT_STDIO_H
  
  #ifndef HAVE_ASPRINTF
  #include <stdarg.h>
  int vasprintf(char **str, const char *fmt, va_list ap);
  int asprintf(char **str, const char *fmt, ...);
  #endif
  
  #ifdef _WIN32
  #include <errno.h>
  #include <string.h>
  
  static inline void
  posix_perror(const char *s)
  {
  	fprintf(stderr, "%s: %s\n", s, strerror(errno));
  }
  
  #define perror(errnum) posix_perror(errnum)
  #endif
  
  #endif
  

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