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-rw-r--r--libc/string/strtok_r.c55
1 files changed, 55 insertions, 0 deletions
diff --git a/libc/string/strtok_r.c b/libc/string/strtok_r.c
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+++ b/libc/string/strtok_r.c
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+/* Copyright (C) 1991 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+/*
+ * Modified by Manuel Novoa III Mar 1, 2001
+ *
+ * Converted original strtok.c code of strtok to __strtok_r.
+ * Cleaned up logic and reduced code size.
+ */
+
+#include <string.h>
+
+char *__strtok_r(char *s, const char *delim, char **save_ptr)
+{
+ char *token;
+
+ token = 0; /* Initialize to no token. */
+
+ if (s == 0) { /* If not first time called... */
+ s = *save_ptr; /* restart from where we left off. */
+ }
+
+ if (s != 0) { /* If not finished... */
+ *save_ptr = 0;
+
+ s += strspn(s, delim); /* Skip past any leading delimiters. */
+ if (*s != '\0') { /* We have a token. */
+ token = s;
+ *save_ptr = strpbrk(token, delim); /* Find token's end. */
+ if (*save_ptr != 0) {
+ /* Terminate the token and make SAVE_PTR point past it. */
+ *(*save_ptr)++ = '\0';
+ }
+ }
+ }
+
+ return token;
+}
+
+__asm__(".weak strtok_r; strtok_r = __strtok_r");