+static int
+pop_check_user (pop_t *pop)
+{
+ gchar *end;
+ gchar *s;
+ end = pop->line->str + pop->line->len;
+ s = pop->line->str;
+ while (s < end && *s == ' ') s++;
+ if (end - s < 5)
+ return -1;
+ if (g_ascii_strncasecmp (s, "USER ", 5) != 0)
+ return -1;
+ s += 5;
+ while (s < end && *s == ' ') s++;
+ if (s == end)
+ return -1;
+ end--;
+ while (end >= s && (*end == '\n' || *end == '\r')) end--;
+ if (end < s)
+ return -1;
+ if (pop->user)
+ g_free (pop->user);
+ pop->user = g_strndup (s, end - s + 2);
+ pop->user[end - s + 1] = 0;
+ return 0;
+}
+