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Diffstat (limited to 'networking/wget.c')
-rw-r--r--networking/wget.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/networking/wget.c b/networking/wget.c
index 5b73b93..97f4a8f 100644
--- a/networking/wget.c
+++ b/networking/wget.c
@@ -282,8 +282,10 @@ static char *gethdr(char *buf, size_t bufsiz, FILE *fp /*, int *istrunc*/)
return NULL;
/* convert the header name to lower case */
- for (s = buf; isalnum(*s) || *s == '-' || *s == '.'; ++s)
- *s = tolower(*s);
+ for (s = buf; isalnum(*s) || *s == '-' || *s == '.'; ++s) {
+ /* tolower for "A-Z", no-op for "0-9a-z-." */
+ *s = (*s | 0x20);
+ }
/* verify we are at the end of the header name */
if (*s != ':')