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#include <assert.h>
#include <dirent.h>
#include <unistd.h>
#include <stdio.h>
#include <sys/types.h>
int main(int argc, char* argv[]) {
DIR *d = opendir("/proc/self/fd");
if (!d) {
printf("error opening proc/self");
return 1;
}
struct dirent *entry;
while ((entry = readdir(d))) {
printf("entry: %s\n", entry->d_name);
printf("unexpected success reading directory!");
return 1;
}
closedir(d);
char buf[1024];
ssize_t s = readlink("/proc/self/fd/0", buf, 1024);
assert(s > 0);
buf[s] = 0;
printf("fd0: %s\n", buf);
printf("done\n");
return 0;
}
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