1 files changed, 89 insertions, 0 deletions
diff --git a/lib/libkiconv/kiconv_sysctl.c b/lib/libkiconv/kiconv_sysctl.c
new file mode 100644
index 0000000..7eebf2b
--- /dev/null
+++ b/lib/libkiconv/kiconv_sysctl.c
@@ -0,0 +1,89 @@
+/*-
+ * Copyright (c) 2005 Ryuichiro Imura
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+ *
+ * $FreeBSD$
+ */
+
+#include <sys/types.h>
+#include <sys/iconv.h>
+#include <sys/sysctl.h>
+
+#include <ctype.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+
+int
+kiconv_lookupconv(const char *drvname)
+{
+	size_t size;
+
+	if (sysctlbyname("kern.iconv.drvlist", NULL, &size, NULL, 0) == -1)
+		return (errno);
+	if (size > 0) {
+		char *drivers, *drvp;
+
+		drivers = malloc(size);
+		if (drivers == NULL)
+			return (ENOMEM);
+		if (sysctlbyname("kern.iconv.drvlist", drivers, &size, NULL, 0) == -1) {
+			free(drivers);
+			return (errno);
+		}
+		for (drvp = drivers; *drvp != '\0'; drvp += strlen(drvp) + 1)
+			if (strcmp(drvp, drvname) == 0) {
+				free(drivers);
+				return (0);
+			}
+	}
+	return (ENOENT);
+}
+
+int
+kiconv_lookupcs(const char *tocode, const char *fromcode)
+{
+	size_t i, size;
+	struct iconv_cspair_info *csi, *csip;
+
+	if (sysctlbyname("kern.iconv.cslist", NULL, &size, NULL, 0) == -1)
+		return (errno);
+	if (size > 0) {
+		csi = malloc(size);
+		if (csi == NULL)
+			return (ENOMEM);
+		if (sysctlbyname("kern.iconv.cslist", csi, &size, NULL, 0) == -1) {
+			free(csi);
+			return (errno);
+		}
+		for (i = 0, csip = csi; i < (size/sizeof(*csi)); i++, csip++){
+			if (strcmp(csip->cs_to, tocode) == 0 &&
+			    strcmp(csip->cs_from, fromcode) == 0) {
+				free(csi);
+				return (0);
+			}
+		}
+	}
+	return (ENOENT);
+}