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-rw-r--r--lib/libsysdecode/errno.c90
1 files changed, 90 insertions, 0 deletions
diff --git a/lib/libsysdecode/errno.c b/lib/libsysdecode/errno.c
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--- /dev/null
+++ b/lib/libsysdecode/errno.c
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+/*-
+ * Copyright (c) 2015 John H. Baldwin <jhb@FreeBSD.org>
+ *
+ * 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.
+ */
+
+#include <sys/param.h>
+#include <sys/acl.h>
+#include <sys/wait.h>
+#include <errno.h>
+#include <limits.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <sysdecode.h>
+
+#if defined(__aarch64__) || defined(__amd64__) || defined(__i386__)
+#include <compat/linux/linux_errno.h>
+#include <compat/linux/linux_errno.inc>
+#endif
+
+int
+sysdecode_abi_to_freebsd_errno(enum sysdecode_abi abi, int error)
+{
+
+ switch (abi) {
+ case SYSDECODE_ABI_FREEBSD:
+ case SYSDECODE_ABI_FREEBSD32:
+ return (error);
+#if defined(__aarch64__) || defined(__amd64__) || defined(__i386__)
+ case SYSDECODE_ABI_LINUX:
+ case SYSDECODE_ABI_LINUX32: {
+ unsigned int i;
+
+ /*
+ * This is imprecise since it returns the first
+ * matching errno.
+ */
+ for (i = 0; i < nitems(linux_errtbl); i++) {
+ if (error == linux_errtbl[i])
+ return (i);
+ }
+ break;
+ }
+#endif
+ default:
+ break;
+ }
+ return (INT_MAX);
+}
+
+int
+sysdecode_freebsd_to_abi_errno(enum sysdecode_abi abi, int error)
+{
+
+ switch (abi) {
+ case SYSDECODE_ABI_FREEBSD:
+ case SYSDECODE_ABI_FREEBSD32:
+ return (error);
+#if defined(__aarch64__) || defined(__amd64__) || defined(__i386__)
+ case SYSDECODE_ABI_LINUX:
+ case SYSDECODE_ABI_LINUX32:
+ if (error >= 0 && error <= ELAST)
+ return (linux_errtbl[error]);
+ break;
+#endif
+ default:
+ break;
+ }
+ return (INT_MAX);
+}
+