Source

linux-scalability-benchmarks / libowfat / textcode / fmt_ldapescape2.c

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#include "fmt.h"
#include "textcode.h"
#include "haveinline.h"
#include <string.h>

size_t fmt_ldapescape2(char* dest,const char* src,size_t len,const char* escapeme) {
  register const unsigned char* s=(const unsigned char*) src;
  size_t written=0,i;
  for (i=0; i<len; ++i) {
    if (s[i]=='\\' || s[i]<' ' || strchr(escapeme,s[i])) {
      if (dest) {
	dest[written]='\\';
	dest[written+1]=fmt_tohex(s[i]>>4);
	dest[written+2]=fmt_tohex(s[i]&15);
      }
      written+=3;
    } else {
      if (dest) dest[written]=s[i]; ++written;
    }
    /* in case someone gives us malicious input */
    if (written>((size_t)-1)/2) return (size_t)-1;
  }
  return written;
}
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