| strcpy.3 (165903) | strcpy.3 (189136) |
|---|---|
| 1.\" Copyright (c) 1990, 1991, 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" This code is derived from software contributed to Berkeley by 5.\" Chris Torek and the American National Standards Committee X3, 6.\" on Information Processing Systems. 7.\" 8.\" Redistribution and use in source and binary forms, with or without --- 16 unchanged lines hidden (view full) --- 25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30.\" SUCH DAMAGE. 31.\" 32.\" @(#)strcpy.3 8.1 (Berkeley) 6/4/93 | 1.\" Copyright (c) 1990, 1991, 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" This code is derived from software contributed to Berkeley by 5.\" Chris Torek and the American National Standards Committee X3, 6.\" on Information Processing Systems. 7.\" 8.\" Redistribution and use in source and binary forms, with or without --- 16 unchanged lines hidden (view full) --- 25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30.\" SUCH DAMAGE. 31.\" 32.\" @(#)strcpy.3 8.1 (Berkeley) 6/4/93 |
| 33.\" $FreeBSD: head/lib/libc/string/strcpy.3 165903 2007-01-09 00:28:16Z imp $ | 33.\" $FreeBSD: head/lib/libc/string/strcpy.3 189136 2009-02-28 06:00:58Z das $ |
| 34.\" | 34.\" |
| 35.Dd August 9, 2001 | 35.Dd February 28, 2009 |
| 36.Dt STRCPY 3 37.Os 38.Sh NAME | 36.Dt STRCPY 3 37.Os 38.Sh NAME |
| 39.Nm strcpy , strncpy | 39.Nm stpcpy, stpncpy, strcpy , strncpy |
| 40.Nd copy strings 41.Sh LIBRARY 42.Lb libc 43.Sh SYNOPSIS 44.In string.h 45.Ft char * | 40.Nd copy strings 41.Sh LIBRARY 42.Lb libc 43.Sh SYNOPSIS 44.In string.h 45.Ft char * |
| 46.Fn stpcpy "char *dst" "const char *src" | 46.Fn stpcpy "char * restrict dst" "const char * restrict src" |
| 47.Ft char * | 47.Ft char * |
| 48.Fn stpncpy "char * restrict dst" "const char * restrict src" "size_t len" 49.Ft char * |
|
| 48.Fn strcpy "char * restrict dst" "const char * restrict src" 49.Ft char * 50.Fn strncpy "char * restrict dst" "const char * restrict src" "size_t len" 51.Sh DESCRIPTION 52The 53.Fn stpcpy 54and 55.Fn strcpy 56functions 57copy the string 58.Fa src 59to 60.Fa dst 61(including the terminating 62.Ql \e0 63character.) 64.Pp 65The | 50.Fn strcpy "char * restrict dst" "const char * restrict src" 51.Ft char * 52.Fn strncpy "char * restrict dst" "const char * restrict src" "size_t len" 53.Sh DESCRIPTION 54The 55.Fn stpcpy 56and 57.Fn strcpy 58functions 59copy the string 60.Fa src 61to 62.Fa dst 63(including the terminating 64.Ql \e0 65character.) 66.Pp 67The |
| 68.Fn stpncpy 69and |
|
| 66.Fn strncpy | 70.Fn strncpy |
| 67function copies at most | 71functions copy at most |
| 68.Fa len 69characters from 70.Fa src 71into 72.Fa dst . 73If 74.Fa src 75is less than --- 14 unchanged lines hidden (view full) --- 90.Fn strcpy 91and 92.Fn strncpy 93functions 94return 95.Fa dst . 96The 97.Fn stpcpy | 72.Fa len 73characters from 74.Fa src 75into 76.Fa dst . 77If 78.Fa src 79is less than --- 14 unchanged lines hidden (view full) --- 94.Fn strcpy 95and 96.Fn strncpy 97functions 98return 99.Fa dst . 100The 101.Fn stpcpy |
| 98function returns a pointer to the terminating | 102and 103.Fn stpncpy 104functions return a pointer to the terminating |
| 99.Ql \e0 100character of 101.Fa dst . | 105.Ql \e0 106character of 107.Fa dst . |
| 108If 109.Fn stpncpy 110does not terminate 111.Fa dst 112with a 113.Dv NUL 114character, it instead returns a pointer to 115.Li dst[n] 116(which does not necessarily refer to a valid memory location.) |
|
| 102.Sh EXAMPLES 103The following sets 104.Va chararray 105to 106.Dq Li abc\e0\e0\e0 : 107.Bd -literal -offset indent 108char chararray[6]; 109 --- 70 unchanged lines hidden (view full) --- 180.Fn strcpy 181and 182.Fn strncpy 183functions 184conform to 185.St -isoC . 186The 187.Fn stpcpy | 117.Sh EXAMPLES 118The following sets 119.Va chararray 120to 121.Dq Li abc\e0\e0\e0 : 122.Bd -literal -offset indent 123char chararray[6]; 124 --- 70 unchanged lines hidden (view full) --- 195.Fn strcpy 196and 197.Fn strncpy 198functions 199conform to 200.St -isoC . 201The 202.Fn stpcpy |
| 188function is an MS-DOS and GNUism. 189The 190.Fn stpcpy 191function 192conforms to no standard. | 203and 204.Fn stpncpy 205functions conform to 206.St -p1003.1-2008 . |
| 193.Sh HISTORY 194The 195.Fn stpcpy 196function first appeared in 197.Fx 4.4 , | 207.Sh HISTORY 208The 209.Fn stpcpy 210function first appeared in 211.Fx 4.4 , |
| 198coming from 1998-vintage Linux. | 212and 213.Fn stpncpy 214was added in 215.Fx 8.0 . |