diff options
| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-05 18:33:23 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-05 18:33:23 +0000 |
| commit | 1d5cace9db9aef76f26b2d7ba54bbb76443b00b2 (patch) | |
| tree | 314a15dd1aa103da13bdc83ba1d2105a290bc5ba /examples/functions/isvalidip | |
| parent | Initial commit. (diff) | |
| download | bash-1d5cace9db9aef76f26b2d7ba54bbb76443b00b2.tar.xz bash-1d5cace9db9aef76f26b2d7ba54bbb76443b00b2.zip | |
Adding upstream version 5.0.upstream/5.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'examples/functions/isvalidip')
| -rw-r--r-- | examples/functions/isvalidip | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/examples/functions/isvalidip b/examples/functions/isvalidip new file mode 100644 index 0000000..0b2dafe --- /dev/null +++ b/examples/functions/isvalidip @@ -0,0 +1,14 @@ +# Thanks to Chris F. A. Johnson <c.f.a.johnson@rogers.com> for this one +is_validip() +{ + case "$*" in + ""|*[!0-9.]*|*[!0-9]) return 1 ;; + esac + + local IFS=. + set -- $* + + [ $# -eq 4 ] && + [ ${1:-666} -le 255 ] && [ ${2:-666} -le 255 ] && + [ ${3:-666} -le 255 ] && [ ${4:-666} -le 254 ] +} |