Add stpcpy(3).

lib/libc/string/Makefile.inc

@@ -7,8 +7,8 @@ CFLAGS+= -I${.CURDIR}/../libc/locale
 
 # machine-independent string sources
 MISRCS+=bcmp.c bcopy.c bzero.c ffs.c index.c memccpy.c memchr.c memcmp.c \
-	memcpy.c memmove.c memset.c rindex.c strcasecmp.c strcat.c strchr.c \
-	strcmp.c strcoll.c strcpy.c strcspn.c strdup.c strerror.c \
+	memcpy.c memmove.c memset.c rindex.c stpcpy.c strcasecmp.c strcat.c \
+	strchr.c strcmp.c strcoll.c strcpy.c strcspn.c strdup.c strerror.c \
 	strlcat.c strlcpy.c strlen.c strmode.c strncat.c strncmp.c strncpy.c \
 	strcasestr.c strnstr.c \
 	strpbrk.c strrchr.c strsep.c strsignal.c strspn.c strstr.c strtok.c \
@@ -34,6 +34,7 @@ MAN+=	bcmp.3 bcopy.3 bstring.3 bzero.3 ffs.3 index.3 memccpy.3 memchr.3 \
 MLINKS+=strcasecmp.3 strncasecmp.3
 MLINKS+=strcat.3 strncat.3
 MLINKS+=strcmp.3 strncmp.3
+MLINKS+=strcpy.3 stpcpy.3
 MLINKS+=strcpy.3 strncpy.3
 MLINKS+=strerror.3 perror.3 strerror.3 sys_errlist.3 strerror.3 sys_nerr.3
 MLINKS+=strerror.3 strerror_r.3

lib/libc/string/stpcpy.c

@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 1999
+ *	David E. O'Brien
+ * Copyright (c) 1988, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if defined(LIBC_SCCS) && !defined(lint)
+static char sccsid[] = "@(#)strcpy.c	8.1 (Berkeley) 6/4/93";
+#endif /* LIBC_SCCS and not lint */
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <string.h>
+
+char *
+stpcpy(char * to, const char * from)
+{
+
+	for (; (*to = *from); ++from, ++to);
+	return(to);
+}

lib/libc/string/strcpy.3

@@ -47,11 +47,14 @@
 .Sh SYNOPSIS
 .In string.h
 .Ft char *
+.Fn stpcpy "char *dst" "const char *src"
+.Ft char *
 .Fn strcpy "char * restrict dst" "const char * restrict src"
 .Ft char *
 .Fn strncpy "char * restrict dst" "const char * restrict src" "size_t len"
 .Sh DESCRIPTION
 The
+.Fn stpcpy ,
 .Fn strcpy
 function
 copies the string
@@ -89,6 +92,12 @@ and
 functions
 return
 .Fa dst .
+The
+.Fn stpcpy
+function returns a pointer to the terminating 
+.Ql \e0
+character of
+.Fa dst .
 .Sh EXAMPLES
 The following sets
 .Va chararray
@@ -178,3 +187,14 @@ and
 functions
 conform to
 .St -isoC .
+The
+.Fn stpcpy
+function is an MS-DOS and GNUism.
+.Fn stpcpy
+conforms to no standard.
+.Sh HISTORY
+The
+.Fn stpcpy
+function first appeared in
+.Fx 4.4 ,
+comming from 1998-ventage Linux.

lib/libc/string/string.3

@@ -38,6 +38,7 @@
 .Dt STRING 3
 .Os
 .Sh NAME
+.Nm stpcpy ,
 .Nm strcat ,
 .Nm strncat ,
 .Nm strchr ,
@@ -64,6 +65,8 @@
 .Sh SYNOPSIS
 .In string.h
 .Ft char *
+.Fn stpcpy "char *dst" "const char *src"
+.Ft char *
 .Fn strcat "char *s" "const char * append"
 .Ft char *
 .Fn strncat "char *s" "const char *append" "size_t count"
@@ -120,6 +123,7 @@ for size limitations.
 .Xr bstring 3 ,
 .Xr index 3 ,
 .Xr rindex 3 ,
+.Xr stpcpy 3 ,
 .Xr strcasecmp 3 ,
 .Xr strcat 3 ,
 .Xr strchr 3 ,