From faa52bdcc0221de2d8fae950e409a8ac5e05bfcd Mon Sep 17 00:00:00 2001 From: Aaron Marcher Date: Wed, 28 Mar 2018 19:46:27 +0200 Subject: Format error messages properly Make use of strerror(errno) and format all errors equally: function ['parameters']: error message --- components/battery.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'components/battery.c') diff --git a/components/battery.c b/components/battery.c index cd1169d..75f2945 100644 --- a/components/battery.c +++ b/components/battery.c @@ -1,5 +1,7 @@ /* See LICENSE file for copyright and license details. */ +#include #include +#include #if defined(__linux__) #include #include @@ -28,12 +30,12 @@ battery_perc(const char *bat) fd = open("/dev/apm", O_RDONLY); if (fd < 0) { - fprintf(stderr, "Failed to open file /dev/apm"); + fprintf(stderr, "open '/dev/apm': %s\n", strerror(errno)); return NULL; } if (ioctl(fd, APM_IOC_GETPOWER, &apm_info) < 0) { - fprintf(stderr, "Failed to get battery info"); + fprintf(stderr, "ioctl 'APM_IOC_GETPOWER': %s\n", strerror(errno)); close(fd); return NULL; } -- cgit v1.2.3