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Format error messages properly

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Make use of strerror(errno) and format all errors equally:
function ['parameters']: error message
This commit is contained in:
Aaron Marcher
2018-03-28 19:46:27 +02:00
parent 2289798b6d
commit faa52bdcc0
15 changed files with 55 additions and 33 deletions
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9
components/wifi.c
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@ -1,5 +1,6 @@
/* See LICENSE file for copyright and license details. */
#if defined(__linux__)
#include <errno.h>
#include <ifaddrs.h>
#include <linux/wireless.h>
#include <sys/socket.h>
@ -25,7 +26,7 @@ wifi_perc(const char *iface)
snprintf(path, sizeof(path), "%s%s%s", "/sys/class/net/", iface, "/operstate");
fp = fopen(path, "r");
if (fp == NULL) {
fprintf(stderr, "Failed to open file %s", path);
fprintf(stderr, "fopen '%s': %s\n", path, strerror(errno));
return NULL;
}
p = fgets(status, 5, fp);
@ -36,7 +37,7 @@ wifi_perc(const char *iface)
fp = fopen("/proc/net/wireless", "r");
if (fp == NULL) {
fprintf(stderr, "Failed to open file /proc/net/wireless");
fprintf(stderr, "fopen '/proc/net/wireless': %s\n", strerror(errno));
return NULL;
}
@ -71,12 +72,12 @@ wifi_essid(const char *iface)
snprintf(wreq.ifr_name, sizeof(wreq.ifr_name), "%s", iface);
if (sockfd == -1) {
fprintf(stderr, "Failed to get ESSID for interface %s", iface);
fprintf(stderr, "socket 'AF_INET': %s\n", strerror(errno));
return NULL;
}
wreq.u.essid.pointer = id;
if (ioctl(sockfd,SIOCGIWESSID, &wreq) == -1) {
fprintf(stderr, "Failed to get ESSID for interface %s", iface);
fprintf(stderr, "ioctl 'SIOCGIWESSID': %s\n", strerror(errno));
close(sockfd);
return NULL;
}