mirror of
https://git.proxmox.com/git/wasi-libc
synced 2025-07-03 15:05:55 +00:00
320054e84f
This incoporates pieces from musl-libc, cloudlibc, cloudabi, libpreopen, and dlmalloc, as well as a significant amount of new code.
106 lines
2.8 KiB
C
106 lines
2.8 KiB
C
/*-
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* Copyright (c) 2016 Stanley Uche Godfrey
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* Copyright (c) 2018 Jonathan Anderson
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* All rights reserved.
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*
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* This software was developed at Memorial University under the
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* NSERC Discovery program (RGPIN-2015-06048).
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/**
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* @file po_err.c
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* @brief Error handling for libpreopen
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*/
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#ifdef __wasilibc_unmodified_upstream
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#include <sys/cdefs.h>
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#include <sys/param.h>
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#include <sys/mman.h>
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#endif
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#include <sys/stat.h>
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#include <sys/types.h>
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#ifdef __wasilibc_unmodified_upstream
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#include <sys/wait.h>
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#endif
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#include <assert.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <limits.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "internal.h"
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#include "libpreopen.h"
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#ifdef __wasilibc_unmodified_upstream
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/* Disable all this error reporting code. */
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static char error_buffer[1024];
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#endif
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#ifdef __wasilibc_unmodified_upstream
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#else
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static
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#endif
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#if !defined(NDEBUG)
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void
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po_map_assertvalid(const struct po_map *map)
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{
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const struct po_map_entry *entry;
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size_t i;
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assert(map->refcount > 0);
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assert(map->length <= map->capacity);
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assert(map->entries != NULL || map->capacity == 0);
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for (i = 0; i < map->length; i++) {
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entry = map->entries + i;
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assert(entry->name != NULL);
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assert(entry->fd >= 0);
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}
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}
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#endif /* !defined(NDEBUG) */
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#ifdef __wasilibc_unmodified_upstream
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void
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po_errormessage(const char *msg)
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{
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snprintf(error_buffer, sizeof(error_buffer), "%s: error %d",
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msg, errno);
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}
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const char*
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po_last_error()
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{
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return (error_buffer);
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}
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#endif
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