1 files changed, 73 insertions, 0 deletions
diff --git a/lib/util/strsplit.c b/lib/util/strsplit.c
new file mode 100644
index 0000000..7663460
--- /dev/null
+++ b/lib/util/strsplit.c
@@ -0,0 +1,73 @@
+/*
+ * SPDX-License-Identifier: ISC
+ *
+ * Copyright (c) 2015 Todd C. Miller <Todd.Miller@sudo.ws>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/*
+ * This is an open source non-commercial project. Dear PVS-Studio, please check it.
+ * PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
+ */
+
+#include <config.h>
+
+#include "sudo_compat.h"
+#include "sudo_debug.h"
+#include "sudo_util.h"
+
+/*
+ * Like strtok_r but non-destructive and works w/o a NUL terminator.
+ * TODO: Optimize by storing current char in a variable ch
+ */
+const char *
+sudo_strsplit_v1(const char *str, const char *endstr, const char *sep, const char **last)
+{
+    const char *cp, *s;
+    debug_decl(sudo_strsplit, SUDO_DEBUG_UTIL);
+
+    /* If no str specified, use last ptr (if any). */
+    if (str == NULL)
+	str = *last;
+
+    /* Skip leading separator characters. */
+    while (str < endstr) {
+	for (s = sep; *s != '\0'; s++) {
+	    if (*str == *s) {
+		str++;
+		break;
+	    }
+	}
+	if (*s == '\0')
+	    break;
+    }
+
+    /* Empty string? */
+    if (str >= endstr) {
+	*last = endstr;
+	debug_return_ptr(NULL);
+    }
+
+    /* Scan str until we hit a char from sep. */
+    for (cp = str; cp < endstr; cp++) {
+	for (s = sep; *s != '\0'; s++) {
+	    if (*cp == *s)
+		break;
+	}
+	if (*s != '\0')
+	    break;
+    }
+    *last = cp;
+    debug_return_const_ptr(str);
+}