66 lines
1.4 KiB
C
66 lines
1.4 KiB
C
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include <json-c/json.h>
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#include <net/if.h>
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#define STR(x) #x
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#define XSTR(x) STR(x)
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static json_object *neighbours(void) {
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struct json_object *obj = json_object_new_object();
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FILE *f;
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f = fopen("/sys/kernel/debug/batman_adv/bat0/originators" , "r");
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if (f == NULL) {
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perror("Can not open bat0/originators");
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exit(1);
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}
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while (!feof(f)) {
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char mac1[18];
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char mac2[18];
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char ifname[IF_NAMESIZE+1];
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int tq;
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double lastseen;
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int count = fscanf(f, "%17s%*[\t ]%lfs%*[\t (]%d) %17s%*[[ ]%" XSTR(IF_NAMESIZE) "[^]]]", mac1, &lastseen, &tq, mac2, ifname);
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if (count != 5)
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continue;
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if (strcmp(mac1, mac2) == 0) {
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struct json_object *neigh = json_object_new_object();
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json_object_object_add(neigh, "tq", json_object_new_int(tq));
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json_object_object_add(neigh, "lastseen", json_object_new_double(lastseen));
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json_object_object_add(neigh, "ifname", json_object_new_string(ifname));
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json_object_object_add(obj, mac1, neigh);
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}
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}
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fclose(f);
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return obj;
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}
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int main(void) {
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struct json_object *obj;
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printf("Access-Control-Allow-Origin: *\n");
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printf("Content-type: text/event-stream\n\n");
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while (1) {
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obj = neighbours();
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printf("data: %s\n\n", json_object_to_json_string_ext(obj, JSON_C_TO_STRING_PLAIN));
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fflush(stdout);
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json_object_put(obj);
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sleep(1);
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}
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return 0;
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}
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