man2/stime.2

   1 .\" Copyright (c) 1992 Drew Eckhardt (drew@cs.colorado.edu), March 28, 1992
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  27 .\" Modified 2001-03-16 by Andries Brouwer <aeb@cwi.nl>
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  30 .TH STIME 2 2020-02-09 "Linux" "Linux Programmer's Manual"
  31 .SH NAME
  32 stime \- set time
  33 .SH SYNOPSIS
  34 .B #include <time.h>
  35 .PP
  36 .BI "int stime(const time_t *" t );
  37 .PP
  38 .in -4n
  39 Feature Test Macro Requirements for glibc (see
  40 .BR feature_test_macros (7)):
  41 .in
  42 .PP
  43 .BR stime ():
  44     Since glibc 2.19:
  45         _DEFAULT_SOURCE
  46     Glibc 2.19 and earlier:
  47         _SVID_SOURCE
  48 .SH DESCRIPTION
  49 .BR NOTE :
  50 This function is deprecated;
  51 use
  52 .BR clock_settime (2)
  53 instead.
  54 .PP
  55 .BR stime ()
  56 sets the system's idea of the time and date.
  57 The time, pointed
  58 to by \fIt\fP, is measured in seconds since the
  59 Epoch, 1970-01-01 00:00:00 +0000 (UTC).
  60 .BR stime ()
  61 may be executed only by the superuser.
  62 .SH RETURN VALUE
  63 On success, zero is returned.
  64 On error, \-1 is returned, and
  65 .I errno
  66 is set appropriately.
  67 .SH ERRORS
  68 .TP
  69 .B EFAULT
  70 Error in getting information from user space.
  71 .TP
  72 .B EPERM
  73 The calling process has insufficient privilege.
  74 Under Linux, the
  75 .B CAP_SYS_TIME
  76 privilege is required.
  77 .SH CONFORMING TO
  78 SVr4.
  79 .SH NOTES
  80 Starting with glibc 2.31,
  81 this function is no longer available to newly linked applications
  82 and is no longer declared in
  83 .IR <time.h> .
  84 .SH SEE ALSO
  85 .BR date (1),
  86 .BR settimeofday (2),
  87 .BR capabilities (7)