Move string comparaison functions to from dix/ to os/.

3 files changed, 136 insertions, 0 deletions

diff --git a/os/Makefile.am b/os/Makefile.am
index 16e4bfacc..16ecc15ae 100644
--- a/os/Makefile.am
+++ b/os/Makefile.am
@@ -18,6 +18,8 @@ libos_la_SOURCES = 	\
 	osdep.h		\
 	osinit.c	\
 	utils.c		\
+	strcasecmp.c	\
+	strcasestr.c	\
 	xdmauth.c	\
 	xstrans.c	\
 	xprintf.c	\
diff --git a/os/strcasecmp.c b/os/strcasecmp.c
new file mode 100644
index 000000000..ca1051dc1
--- /dev/null
+++ b/os/strcasecmp.c
@@ -0,0 +1,70 @@
+/*
+ * Copyright (c) 1987, 1993
+ *      The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include <ctype.h>
+#include "dix.h"
+
+#ifdef NEED_STRCASECMP
+int
+xstrcasecmp(const char *str1, const char *str2)
+{
+    const u_char *us1 = (const u_char *)str1, *us2 = (const u_char *)str2;
+
+    while (tolower(*us1) == tolower(*us2)) {
+        if (*us1++ == '\0')
+            return (0);
+        us2++;
+    }
+
+    return (tolower(*us1) - tolower(*us2));
+}
+#endif
+
+#ifdef NEED_STRNCASECMP
+int
+xstrncasecmp(const char *s1, const char *s2, size_t n)
+{
+    if (n != 0) {
+        const u_char *us1 = (const u_char *)s1, *us2 = (const u_char *)s2;
+
+        do {
+            if (tolower(*us1) != tolower(*us2++))
+                return (tolower(*us1) - tolower(*--us2));
+            if (*us1++ == '\0')
+                break;
+        } while (--n != 0);
+    }
+
+    return 0;
+}
+#endif
diff --git a/os/strcasestr.c b/os/strcasestr.c
new file mode 100644
index 000000000..b3d45495c
--- /dev/null
+++ b/os/strcasestr.c
@@ -0,0 +1,64 @@
+/*-
+ * Copyright (c) 1990, 1993
+ *      The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Chris Torek.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include <ctype.h>
+#include <string.h>
+#include "dix.h"
+
+/*
+ * Find the first occurrence of find in s, ignore case.
+ */
+#ifdef NEED_STRCASESTR
+char *
+xstrcasestr(const char *s, const char *find)
+{
+        char c, sc;
+        size_t len;
+
+        if ((c = *find++) != 0) {
+                c = tolower((unsigned char)c);
+                len = strlen(find);
+                do {
+                        do {
+                                if ((sc = *s++) == 0)
+                                        return (NULL);
+                        } while ((char)tolower((unsigned char)sc) != c);
+                } while (strncasecmp(s, find, len) != 0);
+                s--;
+        }
+        return ((char *)s);
+}
+#endif