Added a strsep() to our BSD compatibility library.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@30022 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/compatibility/bsd/string.h

@@ -0,0 +1,22 @@
+/*
+ * Copyright 2009, Haiku, Inc. All Rights Reserved.
+ * Distributed under the terms of the MIT License.
+ */
+#ifndef _BSD_STRING_H_
+#define _BSD_STRING_H_
+
+
+#include_next <string.h>
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+char* strsep(char** string, const char* delimiters);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif	/* _BSD_STRING_H_ */

src/libs/bsd/Jamfile

@@ -13,6 +13,7 @@ SharedLibrary libbsd.so :
 	progname.c
 	pty.cpp
 	signal.c
+	string.cpp
 	stringlist.c
 	unvis.c
 	usershell.c

src/libs/bsd/string.cpp

@@ -0,0 +1,29 @@
+/*
+ * Copyright 2009, Ingo Weinhold, ingo_weinhold@gmx.de.
+ * Distributed under the terms of the MIT License.
+ */
+
+#include <string.h>
+
+
+char*
+strsep(char** string, const char* delimiters)
+{
+	if (*string == NULL)
+		return NULL;
+
+	// find the end of the token
+	char* token = *string;
+	char* end = token;
+	while (*end != '\0' && strchr(delimiters, *end) == NULL)
+		end++;
+
+	// terminate the token and update the string pointer
+	if (*end != '\0') {
+		*end = '\0';
+		*string = end + 1;
+	} else
+		*string = NULL;
+
+	return token;
+}