ext/unicorn_http/c_util.h

   1 /*
   2  * Generic C functions and macros go here, there are no dependencies
   3  * on Unicorn internal structures or the Ruby C API in here.
   4  */
   5
   6 #ifndef UH_util_h
   7 #define UH_util_h
   8
   9 /*
  10  * capitalizes all lower-case ASCII characters and converts dashes
  11  * to underscores for HTTP headers.  Locale-agnostic.
  12  */
  13 static void snake_upcase_char(char *c)
  14 {
  15   if (*c >= 'a' && *c <= 'z')
  16     *c &= ~0x20;
  17   else if (*c == '-')
  18     *c = '_';
  19 }
  20
  21 /* Downcases a single ASCII character.  Locale-agnostic. */
  22 static void downcase_char(char *c)
  23 {
  24   if (*c >= 'A' && *c <= 'Z')
  25     *c |= 0x20;
  26 }
  27
  28 #endif /* UH_util_h */