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-rw-r--r--source4/lib/util_str.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/source4/lib/util_str.c b/source4/lib/util_str.c
index fea7170014..592c38e53c 100644
--- a/source4/lib/util_str.c
+++ b/source4/lib/util_str.c
@@ -159,7 +159,8 @@ int strwicmp(const char *psz1, const char *psz2)
psz1++;
while (isspace((int)*psz2))
psz2++;
- if (toupper(*psz1) != toupper(*psz2) || *psz1 == '\0'
+ if (toupper((unsigned char)*psz1) != toupper((unsigned char)*psz2)
+ || *psz1 == '\0'
|| *psz2 == '\0')
break;
psz1++;
@@ -412,12 +413,12 @@ size_t strhex_to_str(char *p, size_t len, const char *strhex)
continue;
}
- if (!(p1 = strchr_m(hexchars, toupper(strhex[i]))))
+ if (!(p1 = strchr_m(hexchars, toupper((unsigned char)strhex[i]))))
break;
i++; /* next hex digit */
- if (!(p2 = strchr_m(hexchars, toupper(strhex[i]))))
+ if (!(p2 = strchr_m(hexchars, toupper((unsigned char)strhex[i]))))
break;
/* get the two nybbles */