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getutmp(3) — Linux manual page

getutmp(3)               Library Functions Manualgetutmp(3)

NAME        top

       getutmp, getutmpx - copy utmp structure to utmpx, and vice versa

LIBRARY        top

       Standard C library (libc,-lc)

SYNOPSIS        top

#define _GNU_SOURCE/* See feature_test_macros(7) */#include <utmpx.h>void getutmp(const struct utmpx *ux, struct utmp *u);void getutmpx(const struct utmp *u, struct utmpx *ux);

DESCRIPTION        top

       Thegetutmp() function copies the fields of theutmpx structure       pointed to byux to the corresponding fields of theutmp structure       pointed to byu.  Thegetutmpx() function performs the converse       operation.

RETURN VALUE        top

       These functions do not return a value.

ATTRIBUTES        top

       For an explanation of the terms used in this section, seeattributes(7).       ┌──────────────────────────────────────┬───────────────┬─────────┐       │Interface│Attribute│Value│       ├──────────────────────────────────────┼───────────────┼─────────┤       │getutmp(),getutmpx()                │ Thread safety │ MT-Safe │       └──────────────────────────────────────┴───────────────┴─────────┘

STANDARDS        top

       None.

HISTORY        top

       glibc 2.1.1.  Solaris, NetBSD.

NOTES        top

       These functions exist primarily for compatibility with other       systems where theutmp andutmpx structures contain different       fields, or the size of corresponding fields differs.  On Linux,       the two structures contain the same fields, and the fields have       the same sizes.

SEE ALSO        top

utmpdump(1),getutent(3),utmp(5)

COLOPHON        top

       This page is part of theman-pages (Linux kernel and C library       user-space interface documentation) project.  Information about       the project can be found at        ⟨https://www.kernel.org/doc/man-pages/⟩.  If you have a bug report       for this manual page, see       ⟨https://git.kernel.org/pub/scm/docs/man-pages/man-pages.git/tree/CONTRIBUTING⟩.       This page was obtained from the tarball man-pages-6.15.tar.gz       fetched from       ⟨https://mirrors.edge.kernel.org/pub/linux/docs/man-pages/⟩ on       2025-08-11.  If you discover any rendering problems in this HTML       version of the page, or you believe there is a better or more up-       to-date source for the page, or you have corrections or       improvements to the information in this COLOPHON (which isnot       part of the original manual page), send a mail to       man-pages@man7.orgLinux man-pages 6.15            2025-05-17getutmp(3)

Pages that refer to this page:getutent(3), utmp(5)

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