> -----Original Message----- > From: busybox [mailto:busybox-boun...@busybox.net] On Behalf Of Niklas > Hambüchen > Sent: Thursday, May 24, 2018 9:51 PM > > … > The way you do it now, using WEXITSTATUS in all cases where it's not > WIFSIGNALED, makes the > assumption that WIFSIGNALED is the precise inverse of WIFEXITED. > > But I haven't found the glibc (API) to make that guarantee anywhere.
There's, among other cases, this paragraph in The Open Group Base Specification http://pubs.opengroup.org/onlinepubs/9699919799/functions/wait.html: "If the information pointed to by stat_loc was stored by a call to waitpid() that did not specify the WUNTRACED or WCONTINUED flags, or by a call to the wait() function, exactly one of the macros WIFEXITED(*stat_loc) and WIFSIGNALED(*stat_loc) shall evaluate to a non-zero value." -- Best regards, Dietmar Schindler ________________________________ manroland web systems GmbH | Managing Director: Alexander Wassermann Registered Office: Augsburg | Trade Register: AG Augsburg | HRB-No.: 26816 | VAT: DE281389840 Confidentiality note: This eMail and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you are not the intended recipient, you are hereby notified that any use or dissemination of this communication is strictly prohibited. If you have received this eMail in error, then please delete this eMail. ________________________________ _______________________________________________ busybox mailing list busybox@busybox.net http://lists.busybox.net/mailman/listinfo/busybox
