VLOG_DEFINE_THIS_MODULE(util);
+COVERAGE_DEFINE(util_xalloc);
+
const char *program_name;
void
}
}
+/* Returns the integer value of the 'n' hexadecimal digits starting at 's', or
+ * UINT_MAX if one of those "digits" is not really a hex digit. If 'ok' is
+ * nonnull, '*ok' is set to true if the conversion succeeds or to false if a
+ * non-hex digit is detected. */
+unsigned int
+hexits_value(const char *s, size_t n, bool *ok)
+{
+ unsigned int value;
+ size_t i;
+
+ value = 0;
+ for (i = 0; i < n; i++) {
+ int hexit = hexit_value(s[i]);
+ if (hexit < 0) {
+ if (ok) {
+ *ok = false;
+ }
+ return UINT_MAX;
+ }
+ value = (value << 4) + hexit;
+ }
+ if (ok) {
+ *ok = true;
+ }
+ return value;
+}
+
/* Returns the current working directory as a malloc()'d string, or a null
* pointer if the current working directory cannot be determined. */
char *