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3cf17ad130
The musl libc only implements POSIX basename() but provided a GNU header
kludge in <string.h>, which was removed in musl 1.2.5 [1]. Use the standard
<libgen.h> header to avoid compilation warnings like:
zabbix-6.4.7/zabbix-extra-mac80211/zabbix_helper_mac80211.c:37:11: warning:
implicit declaration of function 'basename' [-Wimplicit-function-declaration]
37 | phy = basename(phy);
| ^~~~~~~~
zabbix-6.4.7/zabbix-extra-mac80211/zabbix_helper_mac80211.c:37:9: warning:
assignment to 'char *' from 'int' makes pointer from integer without a cast
[-Wint-conversion]
37 | phy = basename(phy);
| ^
zabbix-6.4.7/zabbix-extra-mac80211/zabbix_helper_mac80211.c:38:10: warning:
assignment to 'char *' from 'int' makes pointer from integer without a cast
[-Wint-conversion]
38 | stat = basename(stat);
| ^
Link 1: https://git.musl-libc.org/cgit/musl/log/?qt=grep&q=basename
Signed-off-by: Tony Ambardar <itugrok@yahoo.com>
79 lines
1.8 KiB
C
79 lines
1.8 KiB
C
#define _GNU_SOURCE
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#include <stdio.h>
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#include <string.h>
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#include <libgen.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <dirent.h>
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#include <stdbool.h>
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int discovery()
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{
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DIR *dir;
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struct dirent *ent;
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bool comma = false;
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if ((dir = opendir ("/sys/kernel/debug/ieee80211/")) != NULL) {
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printf("{\"data\":[");
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while ((ent = readdir (dir)) != NULL) {
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if (strcmp(".", ent->d_name) && strcmp("..", ent->d_name)) {
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if (comma)
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printf(",");
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printf("{\"{#PHY}\":\"%s\"}", ent->d_name);
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comma = true;
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}
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}
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printf("]}\n");
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closedir(dir);
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} else {
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perror("");
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return EXIT_FAILURE;
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}
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return EXIT_SUCCESS;
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}
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int get_param(char *phy, char *stat)
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{
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char *filename = NULL;
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FILE *f = NULL;
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phy = basename(phy);
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stat = basename(stat);
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if (asprintf(&filename, "/sys/kernel/debug/ieee80211/%s/statistics/%s", phy, stat) > 0)
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f = fopen(filename, "r");
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if (f != NULL) {
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char temp[256];
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while (fgets(temp, 256, f) != NULL)
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printf("%s",temp);
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fclose(f);
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} else {
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perror("");
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return EXIT_FAILURE;
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}
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free(filename);
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return EXIT_SUCCESS;
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}
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int usage(char *name)
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{
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fprintf(stderr, "Usage:\n");
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fprintf(stderr, " %s discovery\n", name);
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fprintf(stderr, " => print mac80211.phydiscovery discovery rule\n");
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fprintf(stderr, " %s PHY STAT\n", name);
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fprintf(stderr, " => cat /sys/kernel/debug/ieee80211/PHY/statistics/STAT as root\n");
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return EXIT_FAILURE;
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}
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int main(int argc, char *argv[])
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{
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switch (argc) {
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case 2:
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return discovery();
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case 3:
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return get_param(argv[1], argv[2]);
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default:
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return usage(argv[0]);
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}
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}
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