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-rw-r--r--libfetch/common.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libfetch/common.c b/libfetch/common.c
index d87c7ed..64a9dc7 100644
--- a/libfetch/common.c
+++ b/libfetch/common.c
@@ -180,7 +180,7 @@ fetch_parseuint(const char *str, const char **endptr, int radix, uintmax_t max)
unsigned char ch = (unsigned char)*p;
if (isdigit(ch))
d = ch - '0';
- else d = tolower(ch - 'a');
+ else d = tolower(ch) - 'a' + 10;
if (d > radix || val > maxx) goto err;
val *= radix;
if (val > max-d) goto err;