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Get rid of err.h as it is not portable

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Replace warn() and warnx() with fprintf() and add <stdio.h> where
necessary.
This commit is contained in:
Aaron Marcher 2018-03-28 18:26:56 +02:00
parent aced832622
commit 96f3a8a54e
13 changed files with 36 additions and 46 deletions
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5
components/battery.c
View File

@ -1,5 +1,4 @@
/* See LICENSE file for copyright and license details. */
#include <err.h>
#include <stdio.h>
#if defined(__linux__)
#include <limits.h>
@ -29,12 +28,12 @@ battery_perc(const char *bat)
fd = open("/dev/apm", O_RDONLY);
if (fd < 0) {
warn("Failed to open file /dev/apm");
fprintf(stderr, "Failed to open file /dev/apm");
return NULL;
}
if (ioctl(fd, APM_IOC_GETPOWER, &apm_info) < 0) {
warn("Failed to get battery info");
fprintf(stderr, "Failed to get battery info");
close(fd);
return NULL;
}

9
components/disk.c
View File

@ -1,5 +1,4 @@
/* See LICENSE file for copyright and license details. */
#include <err.h>
#include <stdio.h>
#include <sys/statvfs.h>
@ -11,7 +10,7 @@ disk_free(const char *mnt)
struct statvfs fs;
if (statvfs(mnt, &fs) < 0) {
warn("Failed to get filesystem info");
fprintf(stderr, "Failed to get filesystem info");
return NULL;
}
@ -25,7 +24,7 @@ disk_perc(const char *mnt)
struct statvfs fs;
if (statvfs(mnt, &fs) < 0) {
warn("Failed to get filesystem info");
fprintf(stderr, "Failed to get filesystem info");
return NULL;
}
@ -40,7 +39,7 @@ disk_total(const char *mnt)
struct statvfs fs;
if (statvfs(mnt, &fs) < 0) {
warn("Failed to get filesystem info");
fprintf(stderr, "Failed to get filesystem info");
return NULL;
}
@ -53,7 +52,7 @@ disk_used(const char *mnt)
struct statvfs fs;
if (statvfs(mnt, &fs) < 0) {
warn("Failed to get filesystem info");
fprintf(stderr, "Failed to get filesystem info");
return NULL;
}

4
components/hostname.c
View File

@ -1,5 +1,5 @@
/* See LICENSE file for copyright and license details. */
#include <err.h>
#include <stdio.h>
#include <unistd.h>
#include "../util.h"
@ -8,7 +8,7 @@ const char *
hostname(void)
{
if (gethostname(buf, sizeof(buf)) == -1) {
warn("hostname");
fprintf(stderr, "gethostbyname failed");
return NULL;
}

9
components/ip.c
View File

@ -1,6 +1,5 @@
/* See LICENSE file for copyright and license details. */
#if defined(__linux__)
#include <err.h>
#include <ifaddrs.h>
#include <netdb.h>
#include <stdio.h>
@ -16,7 +15,7 @@ ipv4(const char *iface)
char host[NI_MAXHOST];
if (getifaddrs(&ifaddr) == -1) {
warn("Failed to get IPv4 address for interface %s", iface);
fprintf(stderr, "Failed to get IPv4 address for interface %s", iface);
return NULL;
}
@ -27,7 +26,7 @@ ipv4(const char *iface)
s = getnameinfo(ifa->ifa_addr, sizeof(struct sockaddr_in), host, NI_MAXHOST, NULL, 0, NI_NUMERICHOST);
if ((strcmp(ifa->ifa_name, iface) == 0) && (ifa->ifa_addr->sa_family == AF_INET)) {
if (s != 0) {
warnx("Failed to get IPv4 address for interface %s", iface);
fprintf(stderr, "Failed to get IPv4 address for interface %s", iface);
return NULL;
}
return bprintf("%s", host);
@ -47,7 +46,7 @@ ipv6(const char *iface)
char host[NI_MAXHOST];
if (getifaddrs(&ifaddr) == -1) {
warn("Failed to get IPv6 address for interface %s", iface);
fprintf(stderr, "Failed to get IPv6 address for interface %s", iface);
return NULL;
}
@ -58,7 +57,7 @@ ipv6(const char *iface)
s = getnameinfo(ifa->ifa_addr, sizeof(struct sockaddr_in6), host, NI_MAXHOST, NULL, 0, NI_NUMERICHOST);
if ((strcmp(ifa->ifa_name, iface) == 0) && (ifa->ifa_addr->sa_family == AF_INET6)) {
if (s != 0) {
warnx("Failed to get IPv6 address for interface %s", iface);
fprintf(stderr, "Failed to get IPv6 address for interface %s", iface);
return NULL;
}
return bprintf("%s", host);

4
components/keyboard_indicators.c
View File

@ -1,5 +1,5 @@
/* See LICENSE file for copyright and license details. */
#include <err.h>
#include <stdio.h>
#include <X11/Xlib.h>
#include "../util.h"
@ -11,7 +11,7 @@ keyboard_indicators(void)
XKeyboardState state;
if (dpy == NULL) {
warnx("XOpenDisplay failed");
fprintf(stderr, "Cannot open display");
return NULL;
}
XGetKeyboardControl(dpy, &state);

4
components/load_avg.c
View File

@ -1,5 +1,5 @@
/* See LICENSE file for copyright and license details. */
#include <err.h>
#include <stdio.h>
#include <stdlib.h>
#include "../util.h"
@ -10,7 +10,7 @@ load_avg(const char *fmt)
double avgs[3];
if (getloadavg(avgs, 3) < 0) {
warnx("Failed to get the load avg");
fprintf(stderr, "Failed to get the load avg");
return NULL;
}

3
components/num_files.c
View File

@ -1,6 +1,5 @@
/* See LICENSE file for copyright and license details. */
#include <dirent.h>
#include <err.h>
#include <stdio.h>
#include <string.h>
@ -14,7 +13,7 @@ num_files(const char *dir)
int num = 0;
if ((fd = opendir(dir)) == NULL) {
warn("Failed to get number of files in directory %s", dir);
fprintf(stderr, "Failed to get number of files in directory %s", dir);
return NULL;
}

3
components/run_command.c
View File

@ -1,5 +1,4 @@
/* See LICENSE file for copyright and license details. */
#include <err.h>
#include <stdio.h>
#include <string.h>
@ -13,7 +12,7 @@ run_command(const char *cmd)
fp = popen(cmd, "r");
if (fp == NULL) {
warn("Failed to get command output for %s", cmd);
fprintf(stderr, "Failed to get command output for %s", cmd);
return NULL;
}
p = fgets(buf, sizeof(buf) - 1, fp);

17
components/swap.c
View File

@ -1,6 +1,5 @@
/* See LICENSE file for copyright and license details. */
#if defined(__linux__)
#include <err.h>
#include <stdio.h>
#include <string.h>
@ -16,12 +15,12 @@ swap_free(void)
fp = fopen("/proc/meminfo", "r");
if (fp == NULL) {
warn("Failed to open file /proc/meminfo");
fprintf(stderr, "Failed to open file /proc/meminfo");
return NULL;
}
if ((bytes_read = fread(buf, sizeof(char), sizeof(buf) - 1, fp)) == 0) {
warn("swap_free: read error");
fprintf(stderr, "swap_free: read error");
fclose(fp);
return NULL;
}
@ -48,12 +47,12 @@ swap_perc(void)
fp = fopen("/proc/meminfo", "r");
if (fp == NULL) {
warn("Failed to open file /proc/meminfo");
fprintf(stderr, "Failed to open file /proc/meminfo");
return NULL;
}
if ((bytes_read = fread(buf, sizeof(char), sizeof(buf) - 1, fp)) == 0) {
warn("swap_perc: read error");
fprintf(stderr, "swap_perc: read error");
fclose(fp);
return NULL;
}
@ -84,11 +83,11 @@ swap_total(void)
fp = fopen("/proc/meminfo", "r");
if (fp == NULL) {
warn("Failed to open file /proc/meminfo");
fprintf(stderr, "Failed to open file /proc/meminfo");
return NULL;
}
if ((bytes_read = fread(buf, sizeof(char), sizeof(buf) - 1, fp)) == 0) {
warn("swap_total: read error");
fprintf(stderr, "swap_total: read error");
fclose(fp);
return NULL;
}
@ -111,11 +110,11 @@ swap_used(void)
fp = fopen("/proc/meminfo", "r");
if (fp == NULL) {
warn("Failed to open file /proc/meminfo");
fprintf(stderr, "Failed to open file /proc/meminfo");
return NULL;
}
if ((bytes_read = fread(buf, sizeof(char), sizeof(buf) - 1, fp)) == 0) {
warn("swap_used: read error");
fprintf(stderr, "swap_used: read error");
fclose(fp);
return NULL;
}

4
components/user.c
View File

@ -1,6 +1,6 @@
/* See LICENSE file for copyright and license details. */
#include <err.h>
#include <pwd.h>
#include <stdio.h>
#include <sys/types.h>
#include <unistd.h>
@ -18,7 +18,7 @@ username(void)
struct passwd *pw = getpwuid(geteuid());
if (pw == NULL) {
warn("Failed to get username");
fprintf(stderr, "Failed to get username");
return NULL;
}

7
components/volume.c
View File

@ -1,6 +1,5 @@
/* See LICENSE file for copyright and license details. */
#if defined(__linux__)
#include <err.h>
#include <fcntl.h>
#include <sys/soundcard.h>
#include <sys/ioctl.h>
@ -19,19 +18,19 @@ vol_perc(const char *card)
afd = open(card, O_RDONLY | O_NONBLOCK);
if (afd == -1) {
warn("Cannot open %s", card);
fprintf(stderr, "Cannot open %s", card);
return NULL;
}
if (ioctl(afd, SOUND_MIXER_READ_DEVMASK, &devmask) == -1) {
warn("Cannot get volume for %s", card);
fprintf(stderr, "Cannot get volume for %s", card);
close(afd);
return NULL;
}
for (i = 0; i < LEN(vnames); i++) {
if (devmask & (1 << i) && !strcmp("vol", vnames[i])) {
if (ioctl(afd, MIXER_READ(i), &v) == -1) {
warn("vol_perc: ioctl");
fprintf(stderr, "vol_perc: ioctl");
close(afd);
return NULL;
}

9
components/wifi.c
View File

@ -1,6 +1,5 @@
/* See LICENSE file for copyright and license details. */
#if defined(__linux__)
#include <err.h>
#include <ifaddrs.h>
#include <linux/wireless.h>
#include <sys/socket.h>
@ -26,7 +25,7 @@ wifi_perc(const char *iface)
snprintf(path, sizeof(path), "%s%s%s", "/sys/class/net/", iface, "/operstate");
fp = fopen(path, "r");
if (fp == NULL) {
warn("Failed to open file %s", path);
fprintf(stderr, "Failed to open file %s", path);
return NULL;
}
p = fgets(status, 5, fp);
@ -37,7 +36,7 @@ wifi_perc(const char *iface)
fp = fopen("/proc/net/wireless", "r");
if (fp == NULL) {
warn("Failed to open file /proc/net/wireless");
fprintf(stderr, "Failed to open file /proc/net/wireless");
return NULL;
}
@ -72,12 +71,12 @@ wifi_essid(const char *iface)
snprintf(wreq.ifr_name, sizeof(wreq.ifr_name), "%s", iface);
if (sockfd == -1) {
warn("Failed to get ESSID for interface %s", iface);
fprintf(stderr, "Failed to get ESSID for interface %s", iface);
return NULL;
}
wreq.u.essid.pointer = id;
if (ioctl(sockfd,SIOCGIWESSID, &wreq) == -1) {
warn("Failed to get ESSID for interface %s", iface);
fprintf(stderr, "Failed to get ESSID for interface %s", iface);
close(sockfd);
return NULL;
}

4
util.c
View File

@ -1,6 +1,4 @@
/* See LICENSE file for copyright and license details. */
#include <err.h>
#include <errno.h>
#include <stdarg.h>
#include <stdio.h>
#include <string.h>
@ -31,7 +29,7 @@ pscanf(const char *path, const char *fmt, ...)
int n;
if (!(fp = fopen(path, "r"))) {
warn("fopen %s: %s\n", path, strerror(errno));
fprintf(stderr, "fopen for %s failed", path);
return -1;
}
va_start(ap, fmt);