File: scan_yenc.c

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libowfat 0.34-2
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#include "fmt.h"
#include "textcode.h"

size_t scan_yenc(const char *src,char *dest,size_t *destlen) {
  register const unsigned char* s=(const unsigned char*) src;
  size_t written=0,i;
  for (i=0; s[i]; ++i) {
    if (s[i]=='=') {
      ++i;
      if (s[i]=='y') break;
      dest[written]=s[i]-64-42;
    } else if (s[i]=='\n' || s[i]=='\r' || s[i]=='\0')
      break;
    else
      dest[written]=s[i]-42;
    ++written;
  }
  *destlen=written;
  return i;
}