+static int fill_iovec_perror_and_send(const char *message, int skip, struct iovec iov[]) {
+ size_t n, k, r;
+ int saved_errno;
+
+ saved_errno = errno;
+
+ k = isempty(message) ? 0 : strlen(message) + 2;
+ n = 8 + k + 256 + 1;
+
+ for (;;) {
+ char buffer[n];
+ char* j;
+
+ errno = 0;
+ j = strerror_r(saved_errno, buffer + 8 + k, n - 8 - k);
+ if (errno == 0) {
+ char error[6 + 10 + 1]; /* for a 32bit value */
+
+ if (j != buffer + 8 + k)
+ memmove(buffer + 8 + k, j, strlen(j)+1);
+
+ memcpy(buffer, "MESSAGE=", 8);
+
+ if (k > 0) {
+ memcpy(buffer + 8, message, k - 2);
+ memcpy(buffer + 8 + k - 2, ": ", 2);
+ }
+
+ snprintf(error, sizeof(error), "ERRNO=%u", saved_errno);
+ char_array_0(error);
+
+ IOVEC_SET_STRING(iov[skip+0], "PRIORITY=3");
+ IOVEC_SET_STRING(iov[skip+1], buffer);
+ IOVEC_SET_STRING(iov[skip+2], error);
+
+ r = sd_journal_sendv(iov, skip + 3);
+
+ errno = saved_errno;
+ return r;
+ }
+
+ if (errno != ERANGE) {
+ r = -errno;
+ errno = saved_errno;
+ return r;
+ }
+
+ n *= 2;
+ }
+}
+
+_public_ int sd_journal_perror(const char *message) {
+ struct iovec iovec[3];
+
+ return fill_iovec_perror_and_send(message, 0, iovec);
+}
+