lib/getrange.c: getrange(): Use goto to deduplicate code

Signed-off-by: Alejandro Colomar <[email protected]>

lib/getrange.c

@@ -39,16 +39,8 @@ getrange(const char *range,
  *has_max = false;
 
  if ('-' == range[0]) {
- if (!isdigit(range[1]))
- return -1;
-
- errno = 0;
- *max = strtoul_noneg(&range[1], &endptr, 10);
- if (('\0' != *endptr) || (0 != errno))
- return -1;
- *has_max = true;
-
- return 0; /* -<long> */
+ endptr = range + 1;
+ goto parse_max;
  }
 
  errno = 0;
@@ -57,16 +49,16 @@ getrange(const char *range,
  return -1;
  *has_min = true;
 
- switch (*endptr) {
+ switch (*endptr++) {
  case '\0':
  *has_max = true;
  *max = *min;
  return 0; /* <long> */
 
  case '-':
- endptr++;
  if ('\0' == *endptr)
  return 0; /* <long>- */
+parse_max:
  if (!isdigit(*endptr))
  return -1;
 
@@ -76,7 +68,7 @@ getrange(const char *range,
  return -1;
  *has_max = true;
 
- return 0; /* <long>-<long> */
+ return 0; /* <long>-<long>, or -<long> */
 
  default:
  return -1;