misc: ISSPACE() => ISBLANK()

Instances of ISSPACE() use that should rather use ISBLANK(). I think
somewhat carelessly used because it sounds as if it checks for space or
whitespace, but also includes %0a to %0d.

For parsing purposes, we should only accept what we must and not be
overly liberal. It leads to surprises and surprises lead to bad things.

Closes #9432

1 files changed, 2 insertions, 2 deletions

diff --git a/lib/strtoofft.c b/lib/strtoofft.c
index 30908fdd9..83dea5c4b 100644
--- a/lib/strtoofft.c
+++ b/lib/strtoofft.c
@@ -87,7 +87,7 @@ static curl_off_t strtooff(const char *nptr, char **endptr, int base)
 
   /* Skip leading whitespace. */
   end = (char *)nptr;
-  while(ISSPACE(end[0])) {
+  while(ISBLANK(end[0])) {
     end++;
   }
 
@@ -222,7 +222,7 @@ CURLofft curlx_strtoofft(const char *str, char **endp, int base,
   errno = 0;
   *num = 0; /* clear by default */
 
-  while(*str && ISSPACE(*str))
+  while(*str && ISBLANK(*str))
     str++;
   if('-' == *str) {
     if(endp)