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| author | Davidlohr Bueso | 2011-10-14 22:32:15 +0200 |
|---|---|---|
| committer | Karel Zak | 2011-10-17 11:06:48 +0200 |
| commit | af7df9ee67248029aa47a3e5b2db6e8cbe1915fd (patch) | |
| tree | 601641a175483e90dfb3432467af0bde82139f9e /lib/strutils.c | |
| parent | fstrim: fix section number in referral to manpage (diff) | |
| download | kernel-qcow2-util-linux-af7df9ee67248029aa47a3e5b2db6e8cbe1915fd.tar.gz kernel-qcow2-util-linux-af7df9ee67248029aa47a3e5b2db6e8cbe1915fd.tar.xz kernel-qcow2-util-linux-af7df9ee67248029aa47a3e5b2db6e8cbe1915fd.zip | |
lib,strutils: add default value to parse_range()
This function currently sets the low or high values to 0 when the string doesn't
contain a value, like '123:' or ':123'. In order to make it more flexible, we allow it
to be passed an arbitrary value.
Signed-off-by: Davidlohr Bueso <dave@gnu.org>
Diffstat (limited to 'lib/strutils.c')
| -rw-r--r-- | lib/strutils.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/lib/strutils.c b/lib/strutils.c index fb1822976..6b2ec799e 100644 --- a/lib/strutils.c +++ b/lib/strutils.c @@ -464,18 +464,19 @@ int string_to_bitarray(const char *list, /* * Parse the lower and higher values in a string containing * "lower:higher" or "lower-higher" format. Note that either - * the lower or the higher values may be missing. + * the lower or the higher values may be missing, and the def + * value will be assigned to it by default. * * Returns: 0 on success, <0 on error. */ -int parse_range(const char *str, int *lower, int *upper) +int parse_range(const char *str, int *lower, int *upper, int def) { char *end = NULL; if (!str) return 0; - *upper = *lower = 0; + *upper = *lower = def; errno = 0; if (*str == ':') { /* <:N> */ |