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Diffstat (limited to 'util/nvramtool/cli/nvramtool.c')
-rw-r--r--util/nvramtool/cli/nvramtool.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/util/nvramtool/cli/nvramtool.c b/util/nvramtool/cli/nvramtool.c
index 9bc3e4e525..bc929da698 100644
--- a/util/nvramtool/cli/nvramtool.c
+++ b/util/nvramtool/cli/nvramtool.c
@@ -800,7 +800,7 @@ static int list_cmos_entry(const cmos_entry_t * e, int show_name)
case CMOS_ENTRY_STRING:
w = (char *)(unsigned long)value;
while (*w) {
- if(!isprint(*w)) {
+ if(!isprint((int)(unsigned char)*w)) {
if (show_name)
printf("# Bad value -> %s\n", e->name);
else
@@ -846,7 +846,7 @@ static uint16_t convert_checksum_value(const char value[])
uint16_t result;
int negative;
- for (p = value; isspace(*p); p++) ;
+ for (p = value; isspace((int)(unsigned char)*p); p++) ;
negative = (*p == '-');
n = strtoul(value, (char **)&p, 0);