| 1 | .\" Copyright (c) 1990, 1991 The Regents of the University of California. |
| 2 | .\" 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 |
| 9 | .\" modification, are permitted provided that the following conditions |
| 10 | .\" are met: |
| 11 | .\" 1. Redistributions of source code must retain the above copyright |
| 12 | .\" notice, this list of conditions and the following disclaimer. |
| 13 | .\" 2. Redistributions in binary form must reproduce the above copyright |
| 14 | .\" notice, this list of conditions and the following disclaimer in the |
| 15 | .\" documentation and/or other materials provided with the distribution. |
| 16 | .\" 3. All advertising materials mentioning features or use of this software |
| 17 | .\" must display the following acknowledgement: |
| 18 | .\" This product includes software developed by the University of |
| 19 | .\" California, Berkeley and its contributors. |
| 20 | .\" 4. Neither the name of the University nor the names of its contributors |
| 21 | .\" may be used to endorse or promote products derived from this software |
| 22 | .\" without specific prior written permission. |
| 23 | .\" |
| 24 | .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| 25 | .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 26 | .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 27 | .\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| 28 | .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 29 | .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 30 | .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 31 | .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 32 | .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 33 | .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 34 | .\" SUCH DAMAGE. |
| 35 | .\" |
| 36 | .\" @(#)strcat.3 5.6 (Berkeley) 6/29/91 |
| 37 | .\" |
| 38 | .Dd June 29, 1991 |
| 39 | .Dt STRCAT 3 |
| 40 | .Os |
| 41 | .Sh NAME |
| 42 | .Nm strcat |
| 43 | .Nd concatenate strings |
| 44 | .Sh SYNOPSIS |
| 45 | .Fd #include <string.h> |
| 46 | .Ft char * |
| 47 | .Fn strcat "char *s" "const char *append" |
| 48 | .Ft char * |
| 49 | .Fn strncat "char *s" "const char *append" "size_t count" |
| 50 | .Sh DESCRIPTION |
| 51 | The |
| 52 | .Fn strcat |
| 53 | and |
| 54 | .Fn strncat |
| 55 | functions |
| 56 | append a copy of the null-terminated string |
| 57 | .Fa append |
| 58 | to the end of the null-terminated string |
| 59 | .Fa s , |
| 60 | then add a terminating |
| 61 | .Ql \e0 . |
| 62 | The string |
| 63 | .Fa s |
| 64 | must have sufficient space to hold the result. |
| 65 | .Pp |
| 66 | The |
| 67 | .Fn strncat |
| 68 | function |
| 69 | appends not more than |
| 70 | .Fa count |
| 71 | characters. |
| 72 | .Sh RETURN VALUES |
| 73 | The |
| 74 | .Fn strcat |
| 75 | and |
| 76 | .Fn strncat |
| 77 | functions |
| 78 | return the pointer |
| 79 | .Fa s . |
| 80 | .Sh SEE ALSO |
| 81 | .Xr bcopy 3 , |
| 82 | .Xr memccpy 3 , |
| 83 | .Xr memcpy 3 , |
| 84 | .Xr memmove 3 , |
| 85 | .Xr strcpy 3 |
| 86 | .Sh STANDARDS |
| 87 | The |
| 88 | .Fn strcat |
| 89 | and |
| 90 | .Fn strncat |
| 91 | functions |
| 92 | conform to |
| 93 | .St -ansiC . |