qdp_strnlen.cc

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#include "qdp_config.h"
 
#ifndef HAVE_STRNLEN
#include "qdp_strnlen.h"
#include <stdlib.h>
 
extern "C" { 
 
  /* Drop in replacement for strnlen */
  size_t strnlen(const char *s, size_t maxlen)
  {
    size_t pos;
 
    /* What to do if s is NULL? Not defined in man page */
    if (s == NULL) { 
      return 0;
    }
    else { 
 
      /* Scan through looking for a terminator */
      for(pos=0; pos < maxlen; pos++) {
        if( s[pos] == '\0' ) {
 
          /* The length of the string including the terminator
             is pos+1, but I am not supposed to count the terminator
             according to the man page */
 
          return pos;
        }
      }
      /* I did not find a terminator so return maxlen */
      return maxlen;
    }
  }
};
 
#endif