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Implement sysconf(_SC_GETGR_R_SIZE_MAX) and sysconf(_SC_GETPW_R_SIZE_MAX).

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Reported by:	Dmitry Sivachenko <trtrmitya@gmail.com>
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
This commit is contained in:
Konstantin Belousov 2014-07-09 19:12:18 +00:00
parent a91831a261
commit a028ee5c9f
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=268467
1 changed files with 9 additions and 3 deletions
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12
lib/libc/gen/sysconf.c
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@ -367,11 +367,17 @@ sysconf(name)
* _POSIX_FILE_LOCKING, so we can't answer this one.
*/
#endif
#if _POSIX_THREAD_SAFE_FUNCTIONS > -1
/*
* SUSv4tc1 says the following about _SC_GETGR_R_SIZE_MAX and
* _SC_GETPW_R_SIZE_MAX:
* Note that sysconf(_SC_GETGR_R_SIZE_MAX) may return -1 if
* there is no hard limit on the size of the buffer needed to
* store all the groups returned.
*/
case _SC_GETGR_R_SIZE_MAX:
case _SC_GETPW_R_SIZE_MAX:
#error "somebody needs to implement this"
#endif
return (-1);
case _SC_HOST_NAME_MAX:
return (MAXHOSTNAMELEN - 1); /* does not include \0 */
case _SC_LOGIN_NAME_MAX: