Add stpcpy()

ChangeLog

@@ -6408,4 +6408,4 @@
 	  files):  Add support for the XPT2046 touchscreen controller on
 	  the Viewtool LCD module connected to the Viewtool STM32F103
 	  board (2014-1-9).
-
+	* libc/strings/lib_stpcpy.c:  Add stpcpy() (2014-1-9).

include/string.h

 /****************************************************************************
  * include/string.h
  *
- *   Copyright (C) 2007-2012 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2007-2012, 2014 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -62,40 +62,42 @@
 #undef EXTERN
 #if defined(__cplusplus)
 #define EXTERN extern "C"
-extern "C" {
+extern "C"
+{
 #else
 #define EXTERN extern
 #endif
 
-EXTERN FAR char  *strdup(FAR const char *s);
-EXTERN FAR char  *strndup(FAR const char *s, size_t size);
-EXTERN FAR const char *strerror(int);
-EXTERN size_t     strlen(FAR const char *);
-EXTERN size_t     strnlen(FAR const char *, size_t);
-EXTERN FAR char  *strcat(FAR char *, FAR const char *);
-EXTERN FAR char  *strncat(FAR char *, FAR const char *, size_t);
-EXTERN int        strcmp(FAR const char *, FAR const char *);
-EXTERN int        strncmp(FAR const char *, FAR const char *, size_t);
-EXTERN int        strcasecmp(FAR const char *, FAR const char *);
-EXTERN int        strncasecmp(FAR const char *, FAR const char *, size_t);
-EXTERN FAR char  *strcpy(char *dest, FAR const char *src);
-EXTERN FAR char  *strncpy(char *, FAR const char *, size_t);
-EXTERN FAR char  *strpbrk(FAR const char *, FAR const char *);
-EXTERN FAR char  *strchr(FAR const char *s, int c);
-EXTERN FAR char  *strrchr(FAR const char *s, int c);
-EXTERN size_t     strspn(FAR const char *, FAR const char *);
-EXTERN size_t     strcspn(FAR const char *, FAR const char *);
-EXTERN FAR char  *strstr(FAR const char *, FAR const char *);
-EXTERN FAR char  *strcasestr(FAR const char *, FAR const char *);
-EXTERN FAR char  *strtok(FAR char *, FAR const char *);
-EXTERN FAR char  *strtok_r(FAR char *, FAR const char *, FAR char **);
+FAR char  *strdup(FAR const char *s);
+FAR char  *strndup(FAR const char *s, size_t size);
+FAR const char *strerror(int);
+size_t     strlen(FAR const char *);
+size_t     strnlen(FAR const char *, size_t);
+FAR char  *strcat(FAR char *, FAR const char *);
+FAR char  *strncat(FAR char *, FAR const char *, size_t);
+int        strcmp(FAR const char *, FAR const char *);
+int        strncmp(FAR const char *, FAR const char *, size_t);
+int        strcasecmp(FAR const char *, FAR const char *);
+int        strncasecmp(FAR const char *, FAR const char *, size_t);
+FAR char  *strcpy(char *dest, FAR const char *src);
+FAR char  *stpcpy(char *dest, FAR const char *src);
+FAR char  *strncpy(char *, FAR const char *, size_t);
+FAR char  *strpbrk(FAR const char *, FAR const char *);
+FAR char  *strchr(FAR const char *s, int c);
+FAR char  *strrchr(FAR const char *s, int c);
+size_t     strspn(FAR const char *, FAR const char *);
+size_t     strcspn(FAR const char *, FAR const char *);
+FAR char  *strstr(FAR const char *, FAR const char *);
+FAR char  *strcasestr(FAR const char *, FAR const char *);
+FAR char  *strtok(FAR char *, FAR const char *);
+FAR char  *strtok_r(FAR char *, FAR const char *, FAR char **);
 
-EXTERN FAR void  *memchr(FAR const void *s, int c, size_t n);
-EXTERN FAR void  *memccpy(FAR void *s1, FAR const void *s2, int c, size_t n);
-EXTERN int        memcmp(FAR const void *s1, FAR const void *s2, size_t n);
-EXTERN FAR void  *memcpy(FAR void *dest, FAR const void *src, size_t n);
-EXTERN FAR void  *memmove(FAR void *dest, FAR const void *src, size_t count);
-EXTERN FAR void  *memset(FAR void *s, int c, size_t n);
+FAR void  *memchr(FAR const void *s, int c, size_t n);
+FAR void  *memccpy(FAR void *s1, FAR const void *s2, int c, size_t n);
+int        memcmp(FAR const void *s1, FAR const void *s2, size_t n);
+FAR void  *memcpy(FAR void *dest, FAR const void *src, size_t n);
+FAR void  *memmove(FAR void *dest, FAR const void *src, size_t count);
+FAR void  *memset(FAR void *s, int c, size_t n);
 
 #undef EXTERN
 #if defined(__cplusplus)

libc/string/Make.defs

@@ -35,14 +35,15 @@
 
 # Add the string C files to the build
 
-CSRCS += lib_checkbase.c lib_isbasedigit.c lib_memset.c lib_memchr.c \
-		 lib_memccpy.c lib_memcmp.c lib_memmove.c lib_skipspace.c \
-		 lib_strcasecmp.c lib_strcat.c lib_strchr.c lib_strcpy.c lib_strcmp.c \
-		 lib_strcspn.c lib_strdup.c lib_strerror.c lib_strlen.c lib_strnlen.c \
-		 lib_strncasecmp.c lib_strncat.c lib_strncmp.c lib_strncpy.c \
-		 lib_strndup.c lib_strcasestr.c lib_strpbrk.c lib_strrchr.c\
-		 lib_strspn.c lib_strstr.c lib_strtok.c lib_strtokr.c lib_strtol.c \
-		 lib_strtoll.c lib_strtoul.c lib_strtoull.c lib_strtod.c
+CSRCS += lib_checkbase.c lib_isbasedigit.c lib_memset.c lib_memchr.c
+CSRCS += lib_memccpy.c lib_memcmp.c lib_memmove.c lib_skipspace.c
+CSRCS += lib_stpcpy.c lib_strcasecmp.c lib_strcat.c lib_strchr.c
+CSRCS += lib_strcpy.c lib_strcmp.c lib_strcspn.c lib_strdup.c lib_strerror.c
+CSRCS += lib_strlen.c lib_strnlen.c lib_strncasecmp.c lib_strncat.c
+CSRCS += lib_strncmp.c lib_strncpy.c lib_strndup.c lib_strcasestr.c
+CSRCS += lib_strpbrk.c lib_strrchr.c lib_strspn.c lib_strstr.c lib_strtok.c
+CSRCS += lib_strtokr.c lib_strtol.c lib_strtoll.c lib_strtoul.c
+CSRCS += lib_strtoull.c lib_strtod.c
 
 ifneq ($(CONFIG_ARCH_MEMCPY),y)
 ifeq ($(CONFIG_MEMCPY_VIK),y)

libc/string/lib_strcpy.c

 /************************************************************************
  * libc/string/lib_strcpy.c
  *
- *   Copyright (C) 2007, 2009, 2011 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2007, 2009, 2011, 2014 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -42,11 +42,23 @@
 #include <string.h>
 
 /************************************************************************
- * Global Functions
+ * Public Functions
+ ************************************************************************/
+
+/************************************************************************
+ * Name: strcpy
+ *
+ * Description:
+ *   Copies the string pointed to by 'src' (including the terminating NUL
+ *   character) into the array pointed to by 'des'.
+ *
+ * Returned value:
+ *   The strcpy() function returns the 'dest' pointer
+ *
  ************************************************************************/
 
 #ifndef CONFIG_ARCH_STRCPY
-char *strcpy(char *dest, const char *src)
+FAR char *strcpy(FAR char *dest, FAR const char *src)
 {
   char *tmp = dest;
   while ((*dest++ = *src++) != '\0');