util-lib: add parse_percent_unbounded() for percentages over 100% (#3886)

[elogind.git] / src / basic / parse-util.h

diff --git a/src/basic/parse-util.h b/src/basic/parse-util.h
index a0277def9d918c8bbb848b27a59cd5ff051b8ef8..e9e270904e77ce2aa2d3d0ea6271842cc3785f6f 100644 (file)
--- a/src/basic/parse-util.h
+++ b/src/basic/parse-util.h
@@ -1,5 +1,3 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
 #pragma once
 
 /***
@@ -37,7 +35,6 @@ int parse_mode(const char *s, mode_t *ret);
 int parse_ifindex(const char *s, int *ret);
 
 int parse_size(const char *t, uint64_t base, uint64_t *size);
-
 #if 0 /// UNNEEDED by elogind
 int parse_range(const char *t, unsigned *lower, unsigned *upper);
 
@@ -95,6 +92,21 @@ static inline int safe_atoli(const char *s, long int *ret_u) {
 }
 #endif
 
+#if SIZE_MAX == UINT_MAX
+static inline int safe_atozu(const char *s, size_t *ret_u) {
+        assert_cc(sizeof(size_t) == sizeof(unsigned));
+        return safe_atou(s, (unsigned *) ret_u);
+}
+#else
+static inline int safe_atozu(const char *s, size_t *ret_u) {
+        assert_cc(sizeof(size_t) == sizeof(long unsigned));
+        return safe_atolu(s, ret_u);
+}
+#endif
+
 int safe_atod(const char *s, double *ret_d);
 
 int parse_fractional_part_u(const char **s, size_t digits, unsigned *res);
+
+int parse_percent_unbounded(const char *p);
+int parse_percent(const char *p);