summaryrefslogtreecommitdiff
path: root/src/lib/libc/string/strstr.3
diff options
context:
space:
mode:
Diffstat (limited to 'src/lib/libc/string/strstr.3')
-rw-r--r--src/lib/libc/string/strstr.348
1 files changed, 23 insertions, 25 deletions
diff --git a/src/lib/libc/string/strstr.3 b/src/lib/libc/string/strstr.3
index 24fdf540ed..2c8fa1888f 100644
--- a/src/lib/libc/string/strstr.3
+++ b/src/lib/libc/string/strstr.3
@@ -13,11 +13,7 @@
13.\" 2. Redistributions in binary form must reproduce the above copyright 13.\" 2. Redistributions in binary form must reproduce the above copyright
14.\" notice, this list of conditions and the following disclaimer in the 14.\" notice, this list of conditions and the following disclaimer in the
15.\" documentation and/or other materials provided with the distribution. 15.\" documentation and/or other materials provided with the distribution.
16.\" 3. All advertising materials mentioning features or use of this software 16.\" 3. Neither the name of the University nor the names of its contributors
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 17.\" may be used to endorse or promote products derived from this software
22.\" without specific prior written permission. 18.\" without specific prior written permission.
23.\" 19.\"
@@ -33,47 +29,50 @@
33.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34.\" SUCH DAMAGE. 30.\" SUCH DAMAGE.
35.\" 31.\"
36.\" from: @(#)strstr.3 5.3 (Berkeley) 6/29/91 32.\" $OpenBSD: strstr.3,v 1.8 2005/03/30 03:04:19 deraadt Exp $
37.\" $Id: strstr.3,v 1.1.1.1 1995/10/18 08:42:23 deraadt Exp $
38.\" 33.\"
39.Dd June 29, 1991 34.Dd June 29, 1991
40.Dt STRSTR 3 35.Dt STRSTR 3
41.Os 36.Os
42.Sh NAME 37.Sh NAME
43.Nm strstr 38.Nm strstr , strcasestr
44.Nd locate a substring in a string 39.Nd locate a substring in a string
45.Sh SYNOPSIS 40.Sh SYNOPSIS
46.Fd #include <string.h> 41.Fd #include <string.h>
47.Ft char * 42.Ft char *
48.Fn strstr "const char *big" "const char *little" 43.Fn strstr "const char *big" "const char *little"
44.Ft char *
45.Fn strcasestr "const char *big" "const char *little"
49.Sh DESCRIPTION 46.Sh DESCRIPTION
50The 47The
51.Fn strstr 48.Fn strstr
52function 49function locates the first occurrence of the NUL-terminated string
53locates the first occurrence of the null-terminated string
54.Fa little 50.Fa little
55in the null-terminated string 51in the NUL-terminated string
56.Fa big . 52.Fa big .
53.Pp
54The
55.Fn strcasestr
56function is similar to
57.Fn strstr
58but ignores the case of both strings.
59.Pp
57If 60If
58.Fa little 61.Fa little
59is the empty string, 62is an empty string,
60.Fn strstr 63.Fa big
61returns 64is returned;
62.Fa big ;
63if 65if
64.Fa little 66.Fa little
65occurs nowhere in 67occurs nowhere in
66.Fa big , 68.Fa big ,
67.Fn strstr 69.Dv NULL
68returns NULL; 70is returned;
69otherwise 71otherwise a pointer to the first character of the first occurrence of
70.Fn strstr 72.Fa little
71returns a pointer to the first character of the first occurrence of 73is returned.
72.Fa little .
73.Sh SEE ALSO 74.Sh SEE ALSO
74.Xr index 3 ,
75.Xr memchr 3 , 75.Xr memchr 3 ,
76.Xr rindex 3 ,
77.Xr strchr 3 , 76.Xr strchr 3 ,
78.Xr strcspn 3 , 77.Xr strcspn 3 ,
79.Xr strpbrk 3 , 78.Xr strpbrk 3 ,
@@ -84,6 +83,5 @@ returns a pointer to the first character of the first occurrence of
84.Sh STANDARDS 83.Sh STANDARDS
85The 84The
86.Fn strstr 85.Fn strstr
87function 86function conforms to
88conforms to
89.St -ansiC . 87.St -ansiC .