getutmp(3) - Linux manual page (original) (raw)

getutmp(3) Library Functions Manual getutmp(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

   The **getutmp**() function copies the fields of the _utmpx_ structure
   pointed to by _ux_ to the corresponding fields of the _utmp_ structure
   pointed to by _u_.  The **getutmpx**() 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, see
   [attributes(7)](../man7/attributes.7.html).
   ┌──────────────────────────────────────┬───────────────┬─────────┐
   │ **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 the _utmp_ and _utmpx_ 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)](../man1/utmpdump.1.html), [getutent(3)](../man3/getutent.3.html), [utmp(5)](../man5/utmp.5.html)

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Linux man-pages 6.10 2024-07-23 getutmp(3)

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