-static int read_priority(const char **buf) {
- int priority;
- size_t n;
- const char *p;
- int a, b, c;
-
- assert(buf);
- assert(*buf);
-
- p = *buf;
- n = strlen(p);
-
- if (n < 3 || p[0] != '<')
- goto fail;
-
- if (p[2] == '>') {
- a = b = 0;
- c = undecchar(p[1]);
- p += 3;
- } else if (n >= 4 && p[3] == '>') {
- a = 0;
- b = undecchar(p[1]);
- c = undecchar(p[2]);
- p += 4;
- } else if (n >= 5 && p[4] == '>') {
- a = undecchar(p[1]);
- b = undecchar(p[2]);
- c = undecchar(p[3]);
- p += 5;
- } else
- goto fail;
-
- if (a < 0 || b < 0 || c < 0)
- goto fail;
-
- *buf = p;
-
- priority = 100*a + 10*b + c;
- return LOG_PRI(priority);
-
-fail:
- return LOG_INFO;
-}
-