Follow-up Comment #6, bug #54178 (project wget):
Hi David
Thank you for you message, I will use WEXITSTATUS(result) as you describe.
BTW, I noticed my Ubuntu LTS machine man page for system(3) looks quite
different from yours. I wonder if you are not running GNU/Linux?
RETURN VALUE
The return value of system() is one of the following:
* If command is NULL, then a nonzero value if a shell is available,
or
0 if no shell is available.
* If a child process could not be created, or its status could not
be
retrieved, the return value is -1.
* If a shell could not be executed in the child process, then
the
return value is as though the child shell terminated by
calling
_exit(2) with the status 127.
* If all system calls succeed, then the return value is the
termina‐
tion status of the child shell used to execute command. (The
termi‐
nation status of a shell is the termination status of the last
com‐
mand it executes.)
In the last two cases, the return value is a "wait status" that can
be
examined using the macros described in waitpid(2). (i.e.,
WIFEXITED(),
WEXITSTATUS(), and so on).
system() does not affect the wait status of any other children.
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