diff options
| author | Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl> | 2014-03-02 00:05:16 -0500 |
|---|---|---|
| committer | Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl> | 2014-03-02 13:59:02 -0500 |
| commit | 9480794b277b5ce33e467578ed669996df576bb9 (patch) | |
| tree | 1592a98d0947cebe047e1cca96a473235630f80c /src/shared/util.c | |
| parent | e525326bd07ebf3cabcfd730bc479166723f2d44 (diff) | |
Allow fractional parts in disk sizes
It seems natural to be able to say SystemMaxUsage=1.5G.
https://bugzilla.redhat.com/show_bug.cgi?id=1047568
Diffstat (limited to 'src/shared/util.c')
| -rw-r--r-- | src/shared/util.c | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/src/shared/util.c b/src/shared/util.c index 5cb598c4c5..3164515a9e 100644 --- a/src/shared/util.c +++ b/src/shared/util.c @@ -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++) 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; |