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path: root/src/backend/utils/adt/inet_net_pton.c
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Diffstat (limited to 'src/backend/utils/adt/inet_net_pton.c')
-rw-r--r--src/backend/utils/adt/inet_net_pton.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/backend/utils/adt/inet_net_pton.c b/src/backend/utils/adt/inet_net_pton.c
index 3b0db2a3799..ef2236d9f04 100644
--- a/src/backend/utils/adt/inet_net_pton.c
+++ b/src/backend/utils/adt/inet_net_pton.c
@@ -115,7 +115,8 @@ inet_cidr_pton_ipv4(const char *src, u_char *dst, size_t size)
src++; /* skip x or X. */
while ((ch = *src++) != '\0' && isxdigit((unsigned char) ch))
{
- ch = pg_ascii_tolower((unsigned char) ch);
+ if (isupper((unsigned char) ch))
+ ch = tolower((unsigned char) ch);
n = strchr(xdigits, ch) - xdigits;
assert(n >= 0 && n <= 15);
if (dirty == 0)