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NAME

     prison_check - determine if two credentials belong to the same jail

SYNOPSIS

     #include <sys/jail.h>

     int
     prison_check(struct ucred *cred1, struct ucred *cred2);

DESCRIPTION

     This function can be used to determine if the two credentials cred1 and
     cred2 belong to the same jail.

RETURN VALUES

     The prison_check() function returns ESRCH if cred1 has been jailed, and
     cred1 and cred2 do not belong to the same jail.  In all other cases,
     prison_check() returns zero.

SEE ALSO

     jail(2)