1294 

  1295 // Read file line by line, if line is longer than bsize,

  1296 // skip rest of line.

  1297 int os::get_line_chars(int fd, char* buf, const size_t bsize){

  1298   size_t sz, i = 0;

  1299 

  1300   // read until EOF, EOL or buf is full

  1301   while ((sz = (int) read(fd, &buf[i], 1)) == 1 && i < (bsize-1) && buf[i] != '\n') {

  1302      ++i;

  1303   }

  1304 

  1305   if (buf[i] == '\n') {

  1306     // EOL reached so ignore EOL character and return

  1307 

  1308     buf[i] = 0;

  1309     return (int) i;

  1310   }

  1311 

  1312   buf[i+1] = 0;

  1313 

  1314   if (sz != 1) {

  1315     // EOF reached. if we read chars before EOF return them and

  1316     // return EOF on next call otherwise return EOF

  1317 

  1318     return (i == 0) ? -1 : (int) i;

  1319   }

  1320 

  1321   // line is longer than size of buf, skip to EOL

  1322   int ch;

  1323   while (read(fd, &ch, 1) == 1 && ch != '\n') {

  1324     // Do nothing

  1325   }

  1326 

  1327   // return initial part of line that fits in buf.

  1328   // If we reached EOF, it will be returned on next call.

  1329 

  1330   return (int) i;

  1331 }