4 files changed, 47 insertions, 0 deletions
diff --git a/src/shared/conf-parser.c b/src/shared/conf-parser.c
index c5dd26db52..b09e90ae8b 100644
--- a/src/shared/conf-parser.c
+++ b/src/shared/conf-parser.c
@@ -467,6 +467,33 @@ int config_parse_unsigned(
         return 0;
 }
 
+int config_parse_double(
+                const char *filename,
+                unsigned line,
+                const char *section,
+                const char *lvalue,
+                int ltype,
+                const char *rvalue,
+                void *data,
+                void *userdata) {
+
+        double *d = data;
+        int r;
+
+        assert(filename);
+        assert(lvalue);
+        assert(rvalue);
+        assert(data);
+
+        r = safe_atod(rvalue, d);
+        if (r < 0) {
+                log_error("[%s:%u] Failed to parse numeric value: %s", filename, line, rvalue);
+                return r;
+        }
+
+        return 0;
+}
+
 int config_parse_bytes_size(
                 const char *filename,
                 unsigned line,
diff --git a/src/shared/conf-parser.h b/src/shared/conf-parser.h
index 56ffc2f8a8..9096c605e2 100644
--- a/src/shared/conf-parser.h
+++ b/src/shared/conf-parser.h
@@ -92,6 +92,7 @@ int config_parse_int(const char *filename, unsigned line, const char *section, c
 int config_parse_unsigned(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
 int config_parse_long(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
 int config_parse_uint64(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_double(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
 int config_parse_bytes_size(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
 int config_parse_bytes_off(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
 int config_parse_bool(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
diff --git a/src/shared/util.c b/src/shared/util.c
index 152724949d..f5adedc531 100644
--- a/src/shared/util.c
+++ b/src/shared/util.c
@@ -353,6 +353,23 @@ int safe_atolli(const char *s, long long int *ret_lli) {
         return 0;
 }
 
+int safe_atod(const char *s, double *ret_d) {
+        char *x = NULL;
+        double d;
+
+        assert(s);
+        assert(ret_d);
+
+        errno = 0;
+        d = strtod(s, &x);
+
+        if (!x || x == s || *x || errno)
+                return errno ? -errno : -EINVAL;
+
+        *ret_d = (double) d;
+        return 0;
+}
+
 /* Split a string into words. */
 char *split(const char *c, size_t *l, const char *separator, char **state) {
         char *current;
diff --git a/src/shared/util.h b/src/shared/util.h
index 88ef2f9040..19cc36af84 100644
--- a/src/shared/util.h
+++ b/src/shared/util.h
@@ -122,6 +122,8 @@ int safe_atoi(const char *s, int *ret_i);
 int safe_atollu(const char *s, unsigned long long *ret_u);
 int safe_atolli(const char *s, long long int *ret_i);
 
+int safe_atod(const char *s, double *ret_d);
+
 #if __WORDSIZE == 32
 static inline int safe_atolu(const char *s, unsigned long *ret_u) {
         assert_cc(sizeof(unsigned long) == sizeof(unsigned));