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getresuid (2)
  • getresuid (2) ( FreeBSD man: Системные вызовы )
  • getresuid (2) ( Русские man: Системные вызовы )
  • >> getresuid (2) ( Linux man: Системные вызовы )
  •  

    NAME

    getresuid, getresgid - get real, effective and saved user/group IDs
     
    

    SYNOPSIS

    #define _GNU_SOURCE
    #include <unistd.h>

    int getresuid(uid_t *ruid, uid_t *euid, uid_t *suid);
    int getresgid(gid_t *rgid, gid_t *egid, gid_t *sgid);  

    DESCRIPTION

    getresuid() returns the real UID, the effective UID, and the saved set-user-ID of the calling process, in the arguments ruid, euid, and suid, respectively. getresgid() performs the analogous task for the process's group IDs.  

    RETURN VALUE

    On success, zero is returned. On error, -1 is returned, and errno is set appropriately.  

    ERRORS

    EFAULT
    One of the arguments specified an address outside the calling program's address space.
     

    VERSIONS

    These system calls appeared on Linux starting with kernel 2.1.44.

    The prototypes are given by glibc since version 2.3.2, provided _GNU_SOURCE is defined.  

    CONFORMING TO

    These calls are non-standard; they also appear on HP-UX and some of the BSDs.  

    SEE ALSO

    getuid(2), setresuid(2), setreuid(2), setuid(2), credentials(7), feature_test_macros(7)  

    COLOPHON

    This page is part of release 3.14 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    RETURN VALUE
    ERRORS
    VERSIONS
    CONFORMING TO
    SEE ALSO
    COLOPHON


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