summaryrefslogtreecommitdiffstats
path: root/avahi-common
diff options
context:
space:
mode:
Diffstat (limited to 'avahi-common')
-rw-r--r--avahi-common/Makefile.am18
-rw-r--r--avahi-common/utf8-test.c37
-rw-r--r--avahi-common/utf8.c115
-rw-r--r--avahi-common/utf8.h35
4 files changed, 201 insertions, 4 deletions
diff --git a/avahi-common/Makefile.am b/avahi-common/Makefile.am
index c786954..cd21c11 100644
--- a/avahi-common/Makefile.am
+++ b/avahi-common/Makefile.am
@@ -48,7 +48,8 @@ noinst_PROGRAMS = \
alternative-test \
timeval-test \
watch-test \
- watch-test-thread
+ watch-test-thread \
+ utf8-test
endif
lib_LTLIBRARIES = \
@@ -65,7 +66,8 @@ libavahi_common_la_SOURCES = \
simple-watch.c simple-watch.h \
thread-watch.c thread-watch.h \
watch.h gccmacro.h \
- rlist.h rlist.c
+ rlist.h rlist.c \
+ utf8.c utf8.h
libavahi_common_la_CFLAGS = $(AM_CFLAGS) $(PTHREAD_CFLAGS)
libavahi_common_la_LIBADD = $(AM_LDADD) $(PTHREAD_CFLAGS) $(PTHREAD_LIBS)
@@ -82,14 +84,16 @@ alternative_test_SOURCES = \
malloc.c malloc.h \
domain.c domain.h \
address.c address.h \
- alternative-test.c
+ alternative-test.c \
+ utf8.c utf8.h
alternative_test_CFLAGS = $(AM_CFLAGS)
domain_test_SOURCES = \
domain.c domain.h \
malloc.c malloc.h \
address.c address.h \
- domain-test.c
+ domain-test.c \
+ utf8.c utf8.h
domain_test_CFLAGS = $(AM_CFLAGS)
watch_test_SOURCES = \
@@ -111,6 +115,12 @@ timeval_test_SOURCES = \
timeval_test_CFLAGS = $(AM_CFLAGS) $(PTHREAD_CFLAGS)
timeval_test_LDADD = $(AM_LDADD) $(PTHREAD_LIBS) $(PTHREAD_CFLAGS)
+utf8_test_SOURCES = \
+ utf8-test.c \
+ utf8.c utf8.h
+utf8_test_CFLAGS = $(AM_CFLAGS)
+utf8_test_LDADD = $(AM_LDADD)
+
if HAVE_DBUS
noinst_HEADERS = \
diff --git a/avahi-common/utf8-test.c b/avahi-common/utf8-test.c
new file mode 100644
index 0000000..ce7a984
--- /dev/null
+++ b/avahi-common/utf8-test.c
@@ -0,0 +1,37 @@
+/* $Id$ */
+
+/***
+ This file is part of avahi.
+
+ avahi is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as
+ published by the Free Software Foundation; either version 2.1 of the
+ License, or (at your option) any later version.
+
+ avahi 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 Lesser General
+ Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with avahi; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ USA.
+***/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <assert.h>
+
+#include <avahi-common/gccmacro.h>
+
+#include "utf8.h"
+
+int main(AVAHI_GCC_UNUSED int argc, AVAHI_GCC_UNUSED char *argv[]) {
+
+ assert(avahi_utf8_valid("hallo"));
+ assert(!avahi_utf8_valid("üxknürz"));
+ assert(avahi_utf8_valid("üxknürz"));
+}
diff --git a/avahi-common/utf8.c b/avahi-common/utf8.c
new file mode 100644
index 0000000..f52ce55
--- /dev/null
+++ b/avahi-common/utf8.c
@@ -0,0 +1,115 @@
+/* $Id */
+
+/* This file is based on the GLIB utf8 validation functions. The
+ * original license text follows. */
+
+/* gutf8.c - Operations on UTF-8 strings.
+ *
+ * Copyright (C) 1999 Tom Tromey
+ * Copyright (C) 2000 Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdlib.h>
+
+#include "utf8.h"
+
+#define UNICODE_VALID(Char) \
+ ((Char) < 0x110000 && \
+ (((Char) & 0xFFFFF800) != 0xD800) && \
+ ((Char) < 0xFDD0 || (Char) > 0xFDEF) && \
+ ((Char) & 0xFFFE) != 0xFFFE)
+
+
+#define CONTINUATION_CHAR \
+ do { \
+ if ((*(const unsigned char *)p & 0xc0) != 0x80) /* 10xxxxxx */ \
+ goto error; \
+ val <<= 6; \
+ val |= (*(const unsigned char *)p) & 0x3f; \
+ } while(0)
+
+
+const char *
+avahi_utf8_valid (const char *str)
+
+{
+ unsigned val = 0;
+ unsigned min = 0;
+ const char *p;
+
+ for (p = str; *p; p++)
+ {
+ if (*(const unsigned char *)p < 128)
+ /* done */;
+ else
+ {
+ const char *last;
+
+ last = p;
+ if ((*(const unsigned char *)p & 0xe0) == 0xc0) /* 110xxxxx */
+ {
+ if ( ((*(const unsigned char *)p & 0x1e) == 0))
+ goto error;
+ p++;
+ if ( ((*(const unsigned char *)p & 0xc0) != 0x80)) /* 10xxxxxx */
+ goto error;
+ }
+ else
+ {
+ if ((*(const unsigned char *)p & 0xf0) == 0xe0) /* 1110xxxx */
+ {
+ min = (1 << 11);
+ val = *(const unsigned char *)p & 0x0f;
+ goto TWO_REMAINING;
+ }
+ else if ((*(const unsigned char *)p & 0xf8) == 0xf0) /* 11110xxx */
+ {
+ min = (1 << 16);
+ val = *(const unsigned char *)p & 0x07;
+ }
+ else
+ goto error;
+
+ p++;
+ CONTINUATION_CHAR;
+ TWO_REMAINING:
+ p++;
+ CONTINUATION_CHAR;
+ p++;
+ CONTINUATION_CHAR;
+
+ if ( (val < min))
+ goto error;
+
+ if ( (!UNICODE_VALID(val)))
+ goto error;
+ }
+
+ continue;
+
+ error:
+ return NULL;
+ }
+ }
+
+ return str;
+}
diff --git a/avahi-common/utf8.h b/avahi-common/utf8.h
new file mode 100644
index 0000000..93c9b59
--- /dev/null
+++ b/avahi-common/utf8.h
@@ -0,0 +1,35 @@
+#ifndef fooutf8hfoo
+#define fooutf8hfoo
+
+/* $Id$ */
+
+/***
+ This file is part of avahi.
+
+ avahi is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as
+ published by the Free Software Foundation; either version 2.1 of the
+ License, or (at your option) any later version.
+
+ avahi 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 Lesser General
+ Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with avahi; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ USA.
+***/
+
+#include <inttypes.h>
+
+#include <avahi-common/cdecl.h>
+
+AVAHI_C_DECL_BEGIN
+
+const char *avahi_utf8_valid(const char *str);
+
+AVAHI_C_DECL_END
+
+#endif
generated by cgit (git 2.34.1) at 2024-11-01 00:30:55 +0000