GNU/Linux man pages
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Syntaxe et mise en oeuvre :
GNU/Linux |
CentOS 4.8 |
i386 |
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initgroups(3) |
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initgroups − initialize the supplementary group access list
#include
<sys/types.h>
#include <grp.h>
int initgroups(const char *user, gid_t group);
The initgroups() function initializes the group access list by reading the group database /etc/group and using all groups of which user is a member. The additional group group is also added to the list.
The initgroups() function returns 0 on success, or −1 if an error occurs.
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EPERM |
The calling process does not have sufficient privileges. | ||
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ENOMEM |
Insufficient memory to allocate group information structure. |
/etc/group group database file
SVID 3, BSD 4.3
The prototype for initgroups is only available if _BSD_SOURCE is defined (either explicitly, or implicitly, by not defining _POSIX_SOURCE or compiling with the -ansi flag).
getgroups(2), setgroups(2)
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initgroups(3) | |