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Merge pull request #32 from R41z/master

Browse source 
several bugfixes and general improvements, see commits below.
This commit is contained in:
Aaron Marcher 2016-12-29 23:27:57 +01:00 committed by GitHub
commit e3c9a6f923
5 changed files with 135 additions and 163 deletions
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2
CONTRIBUTORS.md
View file

@ -6,6 +6,6 @@ Thanks you very much for your great help!
- [Vlaix](https://github.com/Vlaix)
- [pfannkuckengesicht](https://github.com/pfannkuchengesicht)
- [sahne](https://github.com/sahne)
- [Ali H. Fardan](http://raiz.duckdns.org)
- [Ali H. Fardan](http://hexeract.info)
- [Quentin Rameau](https://fifth.space)
- [Mike Coddington](https://coddington.us)

6
TODO.md Normal file
View file

@ -0,0 +1,6 @@
* [ ] fix build on OpenBSD
* [ ] fix build on NetBSD
* [ ] fix build on FreeBSD
* [ ] test wifi functions after the last few commits
* [ ] allow calling routines from command line arguments like: slstatus --datetime "%F %T"
* [X] see if drkhsh approves it

3
extern/concat.h vendored
View file

@ -11,6 +11,9 @@ ccat(const unsigned short int count, ...)
unsigned short int i;
concat[0] = '\0';
if (count == 0)
return;
va_start(ap, count);
for(i = 0; i < count; i++)
strlcat(concat, va_arg(ap, char *), sizeof(concat));

50
extern/strlcpy.h vendored
View file

@ -1,50 +0,0 @@
/* $OpenBSD: strlcpy.c,v 1.13 2015/08/31 02:53:57 guenther Exp $ */
/*
* Copyright (c) 1998, 2015 Todd C. Miller <Todd.Miller@courtesan.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/types.h>
#include <string.h>
/*
* Copy string src to buffer dst of size dsize. At most dsize-1
* chars will be copied. Always NUL terminates (unless dsize == 0).
* Returns strlen(src); if retval >= dsize, truncation occurred.
*/
size_t
strlcpy(char *dst, const char *src, size_t dsize)
{
const char *osrc = src;
size_t nleft = dsize;
/* Copy as many bytes as will fit. */
if (nleft != 0) {
while (--nleft != 0) {
if ((*dst++ = *src++) == '\0')
break;
}
}
/* Not enough room in dst, add NUL and traverse rest of src. */
if (nleft == 0) {
if (dsize != 0)
*dst = '\0'; /* NUL-terminate dst */
while (*src++)
;
}
return(src - osrc - 1); /* count does not include NUL */
}

231
slstatus.c
View file

@ -30,7 +30,6 @@
#include "extern/arg.h"
#include "extern/strlcat.h"
#include "extern/strlcpy.h"
#include "extern/concat.h"
struct arg {
@ -70,13 +69,12 @@ static char *username(void);
static char *vol_perc(const char *card);
static char *wifi_perc(const char *iface);
static char *wifi_essid(const char *iface);
static void set_status(const char *str);
static void sighandler(const int signo);
static void usage(void);
static void usage(int);
char *argv0;
char concat[];
static unsigned short int delay;
static unsigned short int delay = 0;
static unsigned short int done;
static unsigned short int dflag, oflag;
static Display *dpy;
@ -116,7 +114,7 @@ battery_perc(const char *bat)
fp = fopen(concat, "r");
if (fp == NULL) {
warn("Failed to open file %s", concat);
return smprintf(UNKNOWN_STR);
return smprintf("%s", UNKNOWN_STR);
}
fscanf(fp, "%i", &perc);
fclose(fp);
@ -134,7 +132,7 @@ battery_state(const char *bat)
fp = fopen(concat, "r");
if (fp == NULL) {
warn("Failed to open file %s", concat);
return smprintf(UNKNOWN_STR);
return smprintf("%s", UNKNOWN_STR);
}
fscanf(fp, "%12s", state);
fclose(fp);
@ -160,18 +158,18 @@ cpu_perc(void)
fp = fopen("/proc/stat", "r");
if (fp == NULL) {
warn("Failed to open file /proc/stat");
return smprintf(UNKNOWN_STR);
return smprintf("%s", UNKNOWN_STR);
}
fscanf(fp, "%*s %Lf %Lf %Lf %Lf", &a[0], &a[1], &a[2], &a[3]);
fclose(fp);
delay = (UPDATE_INTERVAL - (UPDATE_INTERVAL - 1));
delay++;
sleep(delay);
fp = fopen("/proc/stat", "r");
if (fp == NULL) {
warn("Failed to open file /proc/stat");
return smprintf(UNKNOWN_STR);
return smprintf("%s", UNKNOWN_STR);
}
fscanf(fp, "%*s %Lf %Lf %Lf %Lf", &b[0], &b[1], &b[2], &b[3]);
fclose(fp);
@ -188,7 +186,7 @@ datetime(const char *fmt)
t = time(NULL);
if (strftime(str, sizeof(str), fmt, localtime(&t)) == 0) {
return smprintf(UNKNOWN_STR);
return smprintf("%s", UNKNOWN_STR);
}
return smprintf("%s", str);
@ -201,7 +199,7 @@ disk_free(const char *mnt)
if (statvfs(mnt, &fs) < 0) {
warn("Failed to get filesystem info");
return smprintf(UNKNOWN_STR);
return smprintf("%s", UNKNOWN_STR);
}
return smprintf("%f", (float)fs.f_bsize * (float)fs.f_bfree / 1024 / 1024 / 1024);
@ -215,7 +213,7 @@ disk_perc(const char *mnt)
if (statvfs(mnt, &fs) < 0) {
warn("Failed to get filesystem info");
return smprintf(UNKNOWN_STR);
return smprintf("%s", UNKNOWN_STR);
}
perc = 100 * (1.0f - ((float)fs.f_bfree / (float)fs.f_blocks));
@ -230,7 +228,7 @@ disk_total(const char *mnt)
if (statvfs(mnt, &fs) < 0) {
warn("Failed to get filesystem info");
return smprintf(UNKNOWN_STR);
return smprintf("%s", UNKNOWN_STR);
}
return smprintf("%f", (float)fs.f_bsize * (float)fs.f_blocks / 1024 / 1024 / 1024);
@ -243,7 +241,7 @@ disk_used(const char *mnt)
if (statvfs(mnt, &fs) < 0) {
warn("Failed to get filesystem info");
return smprintf(UNKNOWN_STR);
return smprintf("%s", UNKNOWN_STR);
}
return smprintf("%f", (float)fs.f_bsize * ((float)fs.f_blocks - (float)fs.f_bfree) / 1024 / 1024 / 1024);
@ -258,7 +256,7 @@ entropy(void)
fp= fopen("/proc/sys/kernel/random/entropy_avail", "r");
if (fp == NULL) {
warn("Failed to open file /proc/sys/kernel/random/entropy_avail");
return smprintf(UNKNOWN_STR);
return smprintf("%s", UNKNOWN_STR);
}
fscanf(fp, "%d", &num);
fclose(fp);
@ -279,7 +277,7 @@ hostname(void)
if (gethostname(buf, sizeof(buf)) == -1) {
warn("hostname");
return smprintf(UNKNOWN_STR);
return smprintf("%s", UNKNOWN_STR);
}
return smprintf("%s", buf);
@ -294,7 +292,7 @@ ip(const char *iface)
if (getifaddrs(&ifaddr) == -1) {
warn("Failed to get IP address for interface %s", iface);
return smprintf(UNKNOWN_STR);
return smprintf("%s", UNKNOWN_STR);
}
for (ifa = ifaddr; ifa != NULL; ifa = ifa->ifa_next) {
@ -305,7 +303,7 @@ ip(const char *iface)
if ((strcmp(ifa->ifa_name, iface) == 0) && (ifa->ifa_addr->sa_family == AF_INET)) {
if (s != 0) {
warnx("Failed to get IP address for interface %s", iface);
return smprintf(UNKNOWN_STR);
return smprintf("%s", UNKNOWN_STR);
}
return smprintf("%s", host);
}
@ -313,7 +311,7 @@ ip(const char *iface)
freeifaddrs(ifaddr);
return smprintf(UNKNOWN_STR);
return smprintf("%s", UNKNOWN_STR);
}
static char *
@ -335,7 +333,7 @@ load_avg(void)
if (getloadavg(avgs, 3) < 0) {
warnx("Failed to get the load avg");
return smprintf(UNKNOWN_STR);
return smprintf("%s", UNKNOWN_STR);
}
return smprintf("%.2f %.2f %.2f", avgs[0], avgs[1], avgs[2]);
@ -350,7 +348,7 @@ ram_free(void)
fp = fopen("/proc/meminfo", "r");
if (fp == NULL) {
warn("Failed to open file /proc/meminfo");
return smprintf(UNKNOWN_STR);
return smprintf("%s", UNKNOWN_STR);
}
fscanf(fp, "MemFree: %ld kB\n", &free);
fclose(fp);
@ -367,7 +365,7 @@ ram_perc(void)
fp = fopen("/proc/meminfo", "r");
if (fp == NULL) {
warn("Failed to open file /proc/meminfo");
return smprintf(UNKNOWN_STR);
return smprintf("%s", UNKNOWN_STR);
}
fscanf(fp, "MemTotal: %ld kB\n", &total);
fscanf(fp, "MemFree: %ld kB\n", &free);
@ -387,7 +385,7 @@ ram_total(void)
fp = fopen("/proc/meminfo", "r");
if (fp == NULL) {
warn("Failed to open file /proc/meminfo");
return smprintf(UNKNOWN_STR);
return smprintf("%s", UNKNOWN_STR);
}
fscanf(fp, "MemTotal: %ld kB\n", &total);
fclose(fp);
@ -404,7 +402,7 @@ ram_used(void)
fp = fopen("/proc/meminfo", "r");
if (fp == NULL) {
warn("Failed to open file /proc/meminfo");
return smprintf(UNKNOWN_STR);
return smprintf("%s", UNKNOWN_STR);
}
fscanf(fp, "MemTotal: %ld kB\n", &total);
fscanf(fp, "MemFree: %ld kB\n", &free);
@ -418,19 +416,22 @@ ram_used(void)
static char *
run_command(const char *cmd)
{
char *nlptr;
FILE *fp;
char buf[1024] = "n/a";
char buf[1024] = UNKNOWN_STR;
fp = popen(cmd, "r");
if (fp == NULL) {
warn("Failed to get command output for %s", cmd);
return smprintf(UNKNOWN_STR);
return smprintf("%s", UNKNOWN_STR);
}
fgets(buf, sizeof(buf)-1, fp);
fgets(buf, sizeof(buf), fp);
pclose(fp);
buf[strlen(buf)] = '\0';
strtok(buf, "\n");
if ((nlptr = strstr(buf, "\n")) != NULL) {
nlptr[0] = '\0';
}
return smprintf("%s", buf);
}
@ -447,23 +448,26 @@ swap_free(void)
fp = fopen("/proc/meminfo", "r");
if (fp == NULL) {
warn("Failed to open file /proc/meminfo");
return smprintf(UNKNOWN_STR);
return smprintf("%s", UNKNOWN_STR);
}
bytes_read = fread(buf, sizeof(char), sizeof(buf), fp);
if ((bytes_read = fread(buf, sizeof(char), sizeof(buf), fp)) == 0) {
warn("swap_free: read error");
fclose(fp);
return smprintf("%s", UNKNOWN_STR);
}
buf[bytes_read] = '\0';
fclose(fp);
if (bytes_read == 0 || bytes_read == sizeof(buf)) {
warn("Failed to read /proc/meminfo\n");
return smprintf(UNKNOWN_STR);
}
match = strstr(buf, "SwapTotal");
if ((match = strstr(buf, "SwapTotal")) == NULL) {
return smprintf("%s", UNKNOWN_STR);
}
sscanf(match, "SwapTotal: %ld kB\n", &total);
if (total == 0) {
return smprintf(UNKNOWN_STR);
}
match = strstr(buf, "SwapFree");
if ((match = strstr(buf, "SwapFree")) == NULL) {
return smprintf("%s", UNKNOWN_STR);
}
sscanf(match, "SwapFree: %ld kB\n", &free);
return smprintf("%f", (float)free / 1024 / 1024);
@ -481,26 +485,31 @@ swap_perc(void)
fp = fopen("/proc/meminfo", "r");
if (fp == NULL) {
warn("Failed to open file /proc/meminfo");
return smprintf(UNKNOWN_STR);
return smprintf("%s", UNKNOWN_STR);
}
bytes_read = fread(buf, sizeof(char), sizeof(buf), fp);
if ((bytes_read = fread(buf, sizeof(char), sizeof(buf), fp)) == 0) {
warn("swap_perc: read error");
fclose(fp);
return smprintf("%s", UNKNOWN_STR);
}
buf[bytes_read] = '\0';
fclose(fp);
if (bytes_read == 0 || bytes_read == sizeof(buf)) {
warn("Failed to read /proc/meminfo\n");
return smprintf(UNKNOWN_STR);
}
match = strstr(buf, "SwapTotal");
if ((match = strstr(buf, "SwapTotal")) == NULL) {
return smprintf("%s", UNKNOWN_STR);
}
sscanf(match, "SwapTotal: %ld kB\n", &total);
if (total == 0) {
return smprintf(UNKNOWN_STR);
}
match = strstr(buf, "SwapCached");
if ((match = strstr(buf, "SwapCached")) == NULL) {
return smprintf("%s", UNKNOWN_STR);
}
sscanf(match, "SwapCached: %ld kB\n", &cached);
match = strstr(buf, "SwapFree");
if ((match = strstr(buf, "SwapFree")) == NULL) {
return smprintf("%s", UNKNOWN_STR);
}
sscanf(match, "SwapFree: %ld kB\n", &free);
return smprintf("%d%%", 100 * (total - free - cached) / total);
@ -518,21 +527,21 @@ swap_total(void)
fp = fopen("/proc/meminfo", "r");
if (fp == NULL) {
warn("Failed to open file /proc/meminfo");
return smprintf(UNKNOWN_STR);
return smprintf("%s", UNKNOWN_STR);
}
bytes_read = fread(buf, sizeof(char), sizeof(buf), fp);
buf[bytes_read] = '\0';
if ((bytes_read = fread(buf, sizeof(char), sizeof(buf), fp)) == 0) {
warn("swap_total: read error");
fclose(fp);
if (bytes_read == 0 || bytes_read == sizeof(buf)) {
warn("Failed to read /proc/meminfo\n");
return smprintf(UNKNOWN_STR);
return smprintf("%s", UNKNOWN_STR);
}
match = strstr(buf, "SwapTotal");
sscanf(match, "SwapTotal: %ld kB\n", &total);
if (total == 0) {
return smprintf(UNKNOWN_STR);
buf[bytes_read] = '\0';
fclose(fp);
if ((match = strstr(buf, "SwapTotal")) == NULL) {
return smprintf("%s", UNKNOWN_STR);
}
sscanf(match, "SwapTotal: %ld kB\n", &total);
return smprintf("%f", (float)total / 1024 / 1024);
}
@ -549,26 +558,30 @@ swap_used(void)
fp = fopen("/proc/meminfo", "r");
if (fp == NULL) {
warn("Failed to open file /proc/meminfo");
return smprintf(UNKNOWN_STR);
return smprintf("%s", UNKNOWN_STR);
}
bytes_read = fread(buf, sizeof(char), sizeof(buf), fp);
if ((bytes_read = fread(buf, sizeof(char), sizeof(buf), fp)) == 0) {
warn("swap_used: read error");
fclose(fp);
return smprintf("%s", UNKNOWN_STR);
}
buf[bytes_read] = '\0';
fclose(fp);
if (bytes_read == 0 || bytes_read == sizeof(buf)) {
warn("Failed to read /proc/meminfo\n");
return smprintf(UNKNOWN_STR);
}
match = strstr(buf, "SwapTotal");
if ((match = strstr(buf, "SwapTotal")) == NULL) {
return smprintf("%s", UNKNOWN_STR);
}
sscanf(match, "SwapTotal: %ld kB\n", &total);
if (total == 0) {
return smprintf(UNKNOWN_STR);
}
match = strstr(buf, "SwapCached");
if ((match = strstr(buf, "SwapCached")) == NULL) {
return smprintf("%s", UNKNOWN_STR);
}
sscanf(match, "SwapCached: %ld kB\n", &cached);
match = strstr(buf, "SwapFree");
if ((match = strstr(buf, "SwapFree")) == NULL) {
return smprintf("%s", UNKNOWN_STR);
}
sscanf(match, "SwapFree: %ld kB\n", &free);
return smprintf("%f", (float)(total - free - cached) / 1024 / 1024);
@ -583,7 +596,7 @@ temp(const char *file)
fp = fopen(file, "r");
if (fp == NULL) {
warn("Failed to open file %s", file);
return smprintf(UNKNOWN_STR);
return smprintf("%s", UNKNOWN_STR);
}
fscanf(fp, "%d", &temp);
fclose(fp);
@ -613,7 +626,7 @@ username(void)
if (pw == NULL) {
warn("Failed to get username");
return smprintf(UNKNOWN_STR);
return smprintf("%s", UNKNOWN_STR);
}
return smprintf("%s", pw->pw_name);
@ -647,7 +660,7 @@ vol_perc(const char *card)
snd_mixer_selem_id_free(s_elem);
snd_mixer_close(handle);
warn("Failed to get volume percentage for %s", card);
return smprintf(UNKNOWN_STR);
return smprintf("%s", UNKNOWN_STR);
}
snd_mixer_handle_events(handle);
@ -679,18 +692,18 @@ wifi_perc(const char *iface)
fp = fopen(concat, "r");
if (fp == NULL) {
warn("Failed to open file %s", concat);
return smprintf(UNKNOWN_STR);
return smprintf("%s", UNKNOWN_STR);
}
fgets(status, 5, fp);
fclose(fp);
if(strcmp(status, "up\n") != 0) {
return smprintf(UNKNOWN_STR);
return smprintf("%s", UNKNOWN_STR);
}
fp = fopen("/proc/net/wireless", "r");
if (fp == NULL) {
warn("Failed to open file /proc/net/wireless");
return smprintf(UNKNOWN_STR);
return smprintf("%s", UNKNOWN_STR);
}
ccat(2, iface, ":");
fgets(buf, sizeof(buf), fp);
@ -698,11 +711,11 @@ wifi_perc(const char *iface)
fgets(buf, sizeof(buf), fp);
fclose(fp);
datastart = strstr(buf, concat);
if (datastart != NULL) {
datastart = strstr(buf, ":");
sscanf(datastart + 1, " %*d %d %*d %*d %*d %*d %*d %*d %*d %*d", &perc);
if ((datastart = strstr(buf, concat)) == NULL) {
return smprintf("%s", UNKNOWN_STR);
}
datastart = (datastart+(strlen(iface)+1));
sscanf(datastart + 1, " %*d %d %*d %*d %*d %*d %*d %*d %*d %*d", &perc);
return smprintf("%d%%", perc);
}
@ -716,32 +729,26 @@ wifi_essid(const char *iface)
memset(&wreq, 0, sizeof(struct iwreq));
wreq.u.essid.length = IW_ESSID_MAX_SIZE+1;
sprintf(wreq.ifr_name, iface);
snprintf(wreq.ifr_name, sizeof(wreq.ifr_name), "%s", iface);
if (sockfd == -1) {
warn("Failed to get ESSID for interface %s", iface);
return smprintf(UNKNOWN_STR);
return smprintf("%s", UNKNOWN_STR);
}
wreq.u.essid.pointer = id;
if (ioctl(sockfd,SIOCGIWESSID, &wreq) == -1) {
warn("Failed to get ESSID for interface %s", iface);
return smprintf(UNKNOWN_STR);
return smprintf("%s", UNKNOWN_STR);
}
close(sockfd);
if (strcmp((char *)wreq.u.essid.pointer, "") == 0)
return smprintf(UNKNOWN_STR);
return smprintf("%s", UNKNOWN_STR);
else
return smprintf("%s", (char *)wreq.u.essid.pointer);
}
static void
set_status(const char *str)
{
XStoreName(dpy, DefaultRootWindow(dpy), str);
XSync(dpy, False);
}
static void
sighandler(const int signo)
{
@ -751,17 +758,17 @@ sighandler(const int signo)
}
static void
usage(void)
usage(int eval)
{
fprintf(stderr, "usage: %s [-dhov]\n", argv0);
exit(1);
fprintf(stderr, "usage: %s [-d] [-o] [-v] [-h]\n", argv0);
exit(eval);
}
int
main(int argc, char *argv[])
{
unsigned short int i;
char status_string[4096];
char status_string[2048];
char *res, *element;
struct arg argument;
struct sigaction act;
@ -776,12 +783,14 @@ main(int argc, char *argv[])
case 'v':
printf("slstatus %s (C) 2016 slstatus engineers\n", VERSION);
return 0;
case 'h':
usage(0);
default:
usage();
usage(1);
} ARGEND
if (dflag && oflag) {
usage();
usage(1);
}
if (dflag && daemon(1, 1) < 0) {
err(1, "daemon");
@ -810,30 +819,34 @@ main(int argc, char *argv[])
}
element = smprintf(argument.fmt, res);
if (element == NULL) {
element = smprintf(UNKNOWN_STR);
element = smprintf("%s", UNKNOWN_STR);
warnx("Failed to format output");
}
strlcat(status_string, element, sizeof(status_string));
if (strlcat(status_string, element, sizeof(status_string)) >= sizeof(status_string)) {
warnx("Output too long");
}
free(res);
free(element);
}
if (!oflag) {
set_status(status_string);
XStoreName(dpy, DefaultRootWindow(dpy), status_string);
XSync(dpy, False);
} else {
printf("%s\n", status_string);
}
/*
* subtract delay time spend in function
* calls from the actual global delay time
*/
if ((UPDATE_INTERVAL - delay) <= 0) {
delay = 0;
continue;
} else {
sleep(UPDATE_INTERVAL - delay);
delay = 0;
}
}
if (!oflag) {
set_status(NULL);
XStoreName(dpy, DefaultRootWindow(dpy), NULL);
XCloseDisplay(dpy);
}