1 files changed, 87 insertions, 0 deletions
diff --git a/roms/ipxe/src/core/stringextra.c b/roms/ipxe/src/core/stringextra.c
new file mode 100644
index 000000000..18ffc6301
--- /dev/null
+++ b/roms/ipxe/src/core/stringextra.c
@@ -0,0 +1,87 @@
+/*
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ *  Copyright (C) 2004 Tobias Lorenz
+ *
+ *  string handling functions
+ *  based on linux/lib/string.c
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+FILE_LICENCE ( GPL2_ONLY );
+
+/*
+ * stupid library routines.. The optimized versions should generally be found
+ * as inline code in <asm-xx/string.h>
+ *
+ * These are buggy as well..
+ *
+ * * Fri Jun 25 1999, Ingo Oeser <ioe@informatik.tu-chemnitz.de>
+ * -  Added strsep() which will replace strtok() soon (because strsep() is
+ *    reentrant and should be faster). Use only strsep() in new code, please.
+ */
+
+/*
+ * these are the standard string functions that are currently not used by
+ * any code in etherboot. put into a separate file to avoid linking them in
+ * with the rest of string.o
+ * if anything ever does want to use a function of these, consider moving
+ * the function in question back into string.c
+ */
+ 
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+
+/* *** FROM string.c *** */
+
+#ifndef __HAVE_ARCH_STRPBRK
+/**
+ * strpbrk - Find the first occurrence of a set of characters
+ * @cs: The string to be searched
+ * @ct: The characters to search for
+ */
+char * strpbrk(const char * cs,const char * ct)
+{
+	const char *sc1,*sc2;
+
+	for( sc1 = cs; *sc1 != '\0'; ++sc1) {
+		for( sc2 = ct; *sc2 != '\0'; ++sc2) {
+			if (*sc1 == *sc2)
+				return (char *) sc1;
+		}
+	}
+	return NULL;
+}
+#endif
+
+#ifndef __HAVE_ARCH_STRSEP
+/**
+ * strsep - Split a string into tokens
+ * @s: The string to be searched
+ * @ct: The characters to search for
+ *
+ * strsep() updates @s to point after the token, ready for the next call.
+ *
+ * It returns empty tokens, too, behaving exactly like the libc function
+ * of that name. In fact, it was stolen from glibc2 and de-fancy-fied.
+ * Same semantics, slimmer shape. ;)
+ */
+char * strsep(char **s, const char *ct)
+{
+	char *sbegin = *s, *end;
+
+	if (sbegin == NULL)
+		return NULL;
+
+	end = strpbrk(sbegin, ct);
+	if (end)
+		*end++ = '\0';
+	*s = end;
+
+	return sbegin;
+}
+#endif