diff options
Diffstat (limited to 'components/temperature.c')
| -rw-r--r-- | components/temperature.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/components/temperature.c b/components/temperature.c index 7be5118..c61a574 100644 --- a/components/temperature.c +++ b/components/temperature.c @@ -53,6 +53,8 @@ #include <stdlib.h> #include <sys/sysctl.h> + #define ACPI_TEMP "hw.acpi.thermal.%s.temperature" + const char * temp(const char *zone) { @@ -61,8 +63,8 @@ size_t len; len = sizeof(temp); - snprintf(buf, sizeof(buf), "hw.acpi.thermal.%s.temperature", zone); - if (sysctlbyname(buf, &temp, &len, NULL, 0) == -1 + snprintf(buf, sizeof(buf), ACPI_TEMP, zone); + if (sysctlbyname(buf, &temp, &len, NULL, 0) < 0 || !len) return NULL; |