chiark / gitweb /
core: move config_parse_set_status() into load-fragment.c
[elogind.git] / src / shared / util.c
index 5cb598c4c56169365f448a925180937ed5f2da0c..285a263cdbe5cc13a8946bc6c699e6e92fb88e43 100644 (file)
@@ -2157,31 +2157,31 @@ int parse_size(const char *t, off_t base, off_t *size) {
         };
 
         static const struct table iec[] = {
-                { "B", 1 },
-                { "K", 1024ULL },
-                { "M", 1024ULL*1024ULL },
-                { "G", 1024ULL*1024ULL*1024ULL },
-                { "T", 1024ULL*1024ULL*1024ULL*1024ULL },
-                { "P", 1024ULL*1024ULL*1024ULL*1024ULL*1024ULL },
                 { "E", 1024ULL*1024ULL*1024ULL*1024ULL*1024ULL*1024ULL },
+                { "P", 1024ULL*1024ULL*1024ULL*1024ULL*1024ULL },
+                { "T", 1024ULL*1024ULL*1024ULL*1024ULL },
+                { "G", 1024ULL*1024ULL*1024ULL },
+                { "M", 1024ULL*1024ULL },
+                { "K", 1024ULL },
+                { "B", 1 },
                 { "", 1 },
         };
 
         static const struct table si[] = {
-                { "B", 1 },
-                { "K", 1000ULL },
-                { "M", 1000ULL*1000ULL },
-                { "G", 1000ULL*1000ULL*1000ULL },
-                { "T", 1000ULL*1000ULL*1000ULL*1000ULL },
-                { "P", 1000ULL*1000ULL*1000ULL*1000ULL*1000ULL },
                 { "E", 1000ULL*1000ULL*1000ULL*1000ULL*1000ULL*1000ULL },
+                { "P", 1000ULL*1000ULL*1000ULL*1000ULL*1000ULL },
+                { "T", 1000ULL*1000ULL*1000ULL*1000ULL },
+                { "G", 1000ULL*1000ULL*1000ULL },
+                { "M", 1000ULL*1000ULL },
+                { "K", 1000ULL },
+                { "B", 1 },
                 { "", 1 },
         };
 
         const struct table *table;
         const char *p;
         unsigned long long r = 0;
-        unsigned n_entries;
+        unsigned n_entries, start_pos = 0;
 
         assert(t);
         assert(base == 1000 || base == 1024);
@@ -2198,6 +2198,8 @@ int parse_size(const char *t, off_t base, off_t *size) {
         p = t;
         do {
                 long long l;
+                unsigned long long l2;
+                double frac = 0;
                 char *e;
                 unsigned i;
 
@@ -2213,14 +2215,32 @@ int parse_size(const char *t, off_t base, off_t *size) {
                 if (e == p)
                         return -EINVAL;
 
+                if (*e == '.') {
+                        e++;
+                        if (*e >= '0' && *e <= '9') {
+                                char *e2;
+
+                                /* strotoull itself would accept space/+/- */
+                                l2 = strtoull(e, &e2, 10);
+
+                                if (errno == ERANGE)
+                                        return -errno;
+
+                                /* Ignore failure. E.g. 10.M is valid */
+                                frac = l2;
+                                for (; e < e2; e++)
+                                        frac /= 10;
+                        }
+                }
+
                 e += strspn(e, WHITESPACE);
 
-                for (i = 0; i < n_entries; i++)
+                for (i = start_pos; i < n_entries; i++)
                         if (startswith(e, table[i].suffix)) {
                                 unsigned long long tmp;
-                                if ((unsigned long long) l > ULLONG_MAX / table[i].factor)
+                                if ((unsigned long long) l + (frac > 0) > ULLONG_MAX / table[i].factor)
                                         return -ERANGE;
-                                tmp = l * table[i].factor;
+                                tmp = l * table[i].factor + (unsigned long long) (frac * table[i].factor);
                                 if (tmp > ULLONG_MAX - r)
                                         return -ERANGE;
 
@@ -2229,6 +2249,8 @@ int parse_size(const char *t, off_t base, off_t *size) {
                                         return -ERANGE;
 
                                 p = e + strlen(table[i].suffix);
+
+                                start_pos = i + 1;
                                 break;
                         }