1EUIDACCESS(3)              Linux Programmer's Manual             EUIDACCESS(3)
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NAME

6       euidaccess, eaccess - check effective user's permissions for a file
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SYNOPSIS

9       #define _GNU_SOURCE
10       #include <unistd.h>
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12       int euidaccess(const char *pathname, int mode);
13       int eaccess(const char *pathname, int mode);
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DESCRIPTION

16       Like  access(2),  euidaccess()  checks permissions and existence of the
17       file identified by its argument pathname.  However, whereas  access(2),
18       performs  checks  using  the  real  user  and  group identifiers of the
19       process, euidaccess() uses the effective identifiers.
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21       mode is a mask consisting of one or more of R_OK, W_OK, X_OK and  F_OK,
22       with the same meanings as for access(2).
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24       eaccess()  is  a  synonym  for euidaccess(), provided for compatibility
25       with some other systems.
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RETURN VALUE

28       On success (all requested permissions granted), zero is  returned.   On
29       error  (at least one bit in mode asked for a permission that is denied,
30       or some other error occurred), -1 is returned, and errno is set  appro‐
31       priately.
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ERRORS

34       As for access(2).
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VERSIONS

37       The eaccess() function was added to glibc in version 2.4.
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CONFORMING TO

40       These functions are non-standard.  Some other systems have an eaccess()
41       function.
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SEE ALSO

44       access(2),  chmod(2),  chown(2),  faccessat(2),   open(2),   setgid(2),
45       setuid(2), stat(2), credentials(7), path_resolution(7)
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COLOPHON

48       This  page  is  part of release 3.22 of the Linux man-pages project.  A
49       description of the project, and information about reporting  bugs,  can
50       be found at http://www.kernel.org/doc/man-pages/.
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54                                  2007-07-26                     EUIDACCESS(3)
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