getopt is usually good at printing out a nice error message when
commandline options are invalid. It distinguishes between an unknown
option and a known option with a missing arg. It is better to let it
do its job and not use opterr=0 unless we actually want to suppress
messages. So remove opterr=0 in the few places where it wasn't really
useful.
When an error in options is encountered, we should not print a lengthy
help() and overwhelm the user, when we know precisely what is wrong
with the commandline. In addition, since help() prints to stdout, it
should not be used except when requested with -h or --help.
Also, simplify things here and there.
- Add space between if/for and the opening parentheses
- Place the opening brace on same line as the function (not for udev)
From the CODING_STYLE
Try to use this:
void foo() {
}
instead of this:
void foo()
{
}
Update systemd-analyze to follow the coding style of the other tools
more closely. Also, update the CODING_STYLE to document this for future
additions.
Changes:
- Always use usec_t for time units, so that we always use the same types
everywhere, and format times the same way as everywhere else.
- Add "static" to global variables
- Make sure we can always distuingish OOM and other errors: ensure we
always return useful error codes from all functions.
- Always free unit_times array
Lennart Poettering