return -errno;
if (!(fgets(line, sizeof(line), f))) {
- r = -errno;
+ r = feof(f) ? -EIO : -errno;
fclose(f);
return r;
}
return -errno;
if (!(fgets(line, sizeof(line), f))) {
- r = -errno;
+ r = feof(f) ? -EIO : -errno;
fclose(f);
return r;
}
return -errno;
if (!(fgets(t, sizeof(t), f))) {
- r = -errno;
+ r = feof(f) ? -EIO : -errno;
goto finish;
}
0
};
- if (ioctl(fd, TIOCLINUX, tiocl) < 0)
- return -errno;
+ if (ioctl(fd, TIOCLINUX, tiocl) < 0) {
+ r = -errno;
+ goto fail;
+ }
vt = tiocl[0] <= 0 ? 1 : tiocl[0];
}
if (ioctl(fd, VT_ACTIVATE, vt) < 0)
r = -errno;
- close_nointr_nofail(r);
+fail:
+ close_nointr_nofail(fd);
return r;
}
return -errno;
if (!fgets(line, sizeof(line), f)) {
- k = -errno;
+ k = feof(f) ? -EIO : -errno;
fclose(f);
return k;
}
*b = c;
return 0;
}
+
+unsigned long cap_last_cap(void) {
+ static __thread unsigned long saved;
+ static __thread bool valid = false;
+ unsigned long p;
+
+ if (valid)
+ return saved;
+
+ p = (unsigned long) CAP_LAST_CAP;
+
+ if (prctl(PR_CAPBSET_READ, p) < 0) {
+
+ /* Hmm, look downwards, until we find one that
+ * works */
+ for (p--; p > 0; p --)
+ if (prctl(PR_CAPBSET_READ, p) >= 0)
+ break;
+
+ } else {
+
+ /* Hmm, look upwards, until we find one that doesn't
+ * work */
+ for (;; p++)
+ if (prctl(PR_CAPBSET_READ, p+1) < 0)
+ break;
+ }
+
+ saved = p;
+ valid = true;
+
+ return p;
+}