1 files changed, 0 insertions, 496 deletions
diff --git a/util/compress/libdeflate/programs/prog_util.c b/util/compress/libdeflate/programs/prog_util.c
deleted file mode 100644
index 343828143..000000000
--- a/util/compress/libdeflate/programs/prog_util.c
+++ /dev/null
@@ -1,496 +0,0 @@
-/*
- * prog_util.c - utility functions for programs
- *
- * Copyright 2016 Eric Biggers
- *
- * Permission is hereby granted, free of charge, to any person
- * obtaining a copy of this software and associated documentation
- * files (the "Software"), to deal in the Software without
- * restriction, including without limitation the rights to use,
- * copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following
- * conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
- * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
- * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
- * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
- */
-
-#include "prog_util.h"
-
-#include <errno.h>
-#include <fcntl.h>
-#include <stdarg.h>
-#ifdef _WIN32
-#  include <windows.h>
-#else
-#  include <unistd.h>
-#  include <sys/mman.h>
-#endif
-
-#ifndef O_BINARY
-#  define O_BINARY 0
-#endif
-#ifndef O_SEQUENTIAL
-#  define O_SEQUENTIAL 0
-#endif
-#ifndef O_NOFOLLOW
-#  define O_NOFOLLOW 0
-#endif
-#ifndef O_NONBLOCK
-#  define O_NONBLOCK 0
-#endif
-#ifndef O_NOCTTY
-#  define O_NOCTTY 0
-#endif
-
-/* The invocation name of the program (filename component only) */
-const tchar *prog_invocation_name;
-
-static void
-do_msg(const char *format, bool with_errno, va_list va)
-{
-	int saved_errno = errno;
-
-	fprintf(stderr, "%"TS": ", prog_invocation_name);
-	vfprintf(stderr, format, va);
-	if (with_errno)
-		fprintf(stderr, ": %s\n", strerror(saved_errno));
-	else
-		fprintf(stderr, "\n");
-
-	errno = saved_errno;
-}
-
-/* Print a message to standard error */
-void
-msg(const char *format, ...)
-{
-	va_list va;
-
-	va_start(va, format);
-	do_msg(format, false, va);
-	va_end(va);
-}
-
-/* Print a message to standard error, including a description of errno */
-void
-msg_errno(const char *format, ...)
-{
-	va_list va;
-
-	va_start(va, format);
-	do_msg(format, true, va);
-	va_end(va);
-}
-
-/* malloc() wrapper */
-void *
-xmalloc(size_t size)
-{
-	void *p = malloc(size);
-	if (p == NULL && size == 0)
-		p = malloc(1);
-	if (p == NULL)
-		msg("Out of memory");
-	return p;
-}
-
-/*
- * Retrieve a pointer to the filename component of the specified path.
- *
- * Note: this does not modify the path.  Therefore, it is not guaranteed to work
- * properly for directories, since a path to a directory might have trailing
- * slashes.
- */
-static const tchar *
-get_filename(const tchar *path)
-{
-	const tchar *slash = tstrrchr(path, '/');
-#ifdef _WIN32
-	const tchar *backslash = tstrrchr(path, '\\');
-	if (backslash != NULL && (slash == NULL || backslash > slash))
-		slash = backslash;
-#endif
-	if (slash != NULL)
-		return slash + 1;
-	return path;
-}
-
-void
-begin_program(tchar *argv[])
-{
-	prog_invocation_name = get_filename(argv[0]);
-
-#ifdef FREESTANDING
-	/* This allows testing freestanding library builds. */
-	libdeflate_set_memory_allocator(malloc, free);
-#endif
-}
-
-/* Create a copy of 'path' surrounded by double quotes */
-static tchar *
-quote_path(const tchar *path)
-{
-	size_t len = tstrlen(path);
-	tchar *result;
-
-	result = xmalloc((1 + len + 1 + 1) * sizeof(tchar));
-	if (result == NULL)
-		return NULL;
-	result[0] = '"';
-	tmemcpy(&result[1], path, len);
-	result[1 + len] = '"';
-	result[1 + len + 1] = '\0';
-	return result;
-}
-
-/* Open a file for reading, or set up standard input for reading */
-int
-xopen_for_read(const tchar *path, bool symlink_ok, struct file_stream *strm)
-{
-	strm->mmap_token = NULL;
-	strm->mmap_mem = NULL;
-
-	if (path == NULL) {
-		strm->is_standard_stream = true;
-		strm->name = T("standard input");
-		strm->fd = STDIN_FILENO;
-	#ifdef _WIN32
-		_setmode(strm->fd, O_BINARY);
-	#endif
-		return 0;
-	}
-
-	strm->is_standard_stream = false;
-
-	strm->name = quote_path(path);
-	if (strm->name == NULL)
-		return -1;
-
-	strm->fd = topen(path, O_RDONLY | O_BINARY | O_NONBLOCK | O_NOCTTY |
-			 (symlink_ok ? 0 : O_NOFOLLOW) | O_SEQUENTIAL);
-	if (strm->fd < 0) {
-		msg_errno("Can't open %"TS" for reading", strm->name);
-		free(strm->name);
-		return -1;
-	}
-
-#if defined(HAVE_POSIX_FADVISE) && (O_SEQUENTIAL == 0)
-	(void)posix_fadvise(strm->fd, 0, 0, POSIX_FADV_SEQUENTIAL);
-#endif
-
-	return 0;
-}
-
-/* Open a file for writing, or set up standard output for writing */
-int
-xopen_for_write(const tchar *path, bool overwrite, struct file_stream *strm)
-{
-	int ret = -1;
-
-	strm->mmap_token = NULL;
-	strm->mmap_mem = NULL;
-
-	if (path == NULL) {
-		strm->is_standard_stream = true;
-		strm->name = T("standard output");
-		strm->fd = STDOUT_FILENO;
-	#ifdef _WIN32
-		_setmode(strm->fd, O_BINARY);
-	#endif
-		return 0;
-	}
-
-	strm->is_standard_stream = false;
-
-	strm->name = quote_path(path);
-	if (strm->name == NULL)
-		goto err;
-retry:
-	strm->fd = topen(path, O_WRONLY | O_BINARY | O_NOFOLLOW |
-				O_CREAT | O_EXCL, 0644);
-	if (strm->fd < 0) {
-		if (errno != EEXIST) {
-			msg_errno("Can't open %"TS" for writing", strm->name);
-			goto err;
-		}
-		if (!overwrite) {
-			if (!isatty(STDERR_FILENO) || !isatty(STDIN_FILENO)) {
-				msg("%"TS" already exists; use -f to overwrite",
-				    strm->name);
-				ret = -2; /* warning only */
-				goto err;
-			}
-			fprintf(stderr, "%"TS": %"TS" already exists; "
-				"overwrite? (y/n) ",
-				prog_invocation_name, strm->name);
-			if (getchar() != 'y') {
-				msg("Not overwriting.");
-				goto err;
-			}
-		}
-		if (tunlink(path) != 0) {
-			msg_errno("Unable to delete %"TS, strm->name);
-			goto err;
-		}
-		goto retry;
-	}
-
-	return 0;
-
-err:
-	free(strm->name);
-	return ret;
-}
-
-/* Read the full contents of a file into memory */
-static int
-read_full_contents(struct file_stream *strm)
-{
-	size_t filled = 0;
-	size_t capacity = 4096;
-	char *buf;
-	int ret;
-
-	buf = xmalloc(capacity);
-	if (buf == NULL)
-		return -1;
-	do {
-		if (filled == capacity) {
-			char *newbuf;
-
-			if (capacity == SIZE_MAX)
-				goto oom;
-			capacity += MIN(SIZE_MAX - capacity, capacity);
-			newbuf = realloc(buf, capacity);
-			if (newbuf == NULL)
-				goto oom;
-			buf = newbuf;
-		}
-		ret = xread(strm, &buf[filled], capacity - filled);
-		if (ret < 0)
-			goto err;
-		filled += ret;
-	} while (ret != 0);
-
-	strm->mmap_mem = buf;
-	strm->mmap_size = filled;
-	return 0;
-
-err:
-	free(buf);
-	return ret;
-oom:
-	msg("Out of memory!  %"TS" is too large to be processed by "
-	    "this program as currently implemented.", strm->name);
-	ret = -1;
-	goto err;
-}
-
-/* Map the contents of a file into memory */
-int
-map_file_contents(struct file_stream *strm, u64 size)
-{
-	if (size == 0) /* mmap isn't supported on empty files */
-		return read_full_contents(strm);
-
-	if (size > SIZE_MAX) {
-		msg("%"TS" is too large to be processed by this program",
-		    strm->name);
-		return -1;
-	}
-#ifdef _WIN32
-	strm->mmap_token = CreateFileMapping(
-				(HANDLE)(intptr_t)_get_osfhandle(strm->fd),
-				NULL, PAGE_READONLY, 0, 0, NULL);
-	if (strm->mmap_token == NULL) {
-		DWORD err = GetLastError();
-		if (err == ERROR_BAD_EXE_FORMAT) /* mmap unsupported */
-			return read_full_contents(strm);
-		msg("Unable create file mapping for %"TS": Windows error %u",
-		    strm->name, (unsigned int)err);
-		return -1;
-	}
-
-	strm->mmap_mem = MapViewOfFile((HANDLE)strm->mmap_token,
-				       FILE_MAP_READ, 0, 0, size);
-	if (strm->mmap_mem == NULL) {
-		msg("Unable to map %"TS" into memory: Windows error %u",
-		    strm->name, (unsigned int)GetLastError());
-		CloseHandle((HANDLE)strm->mmap_token);
-		return -1;
-	}
-#else /* _WIN32 */
-	strm->mmap_mem = mmap(NULL, size, PROT_READ, MAP_SHARED, strm->fd, 0);
-	if (strm->mmap_mem == MAP_FAILED) {
-		strm->mmap_mem = NULL;
-		if (errno == ENODEV) /* mmap isn't supported on this file */
-			return read_full_contents(strm);
-		if (errno == ENOMEM) {
-			msg("%"TS" is too large to be processed by this "
-			    "program", strm->name);
-		} else {
-			msg_errno("Unable to map %"TS" into memory",
-				  strm->name);
-		}
-		return -1;
-	}
-
-#ifdef HAVE_POSIX_MADVISE
-	(void)posix_madvise(strm->mmap_mem, size, POSIX_MADV_SEQUENTIAL);
-#endif
-	strm->mmap_token = strm; /* anything that's not NULL */
-
-#endif /* !_WIN32 */
-	strm->mmap_size = size;
-	return 0;
-}
-
-/*
- * Read from a file, returning the full count to indicate all bytes were read, a
- * short count (possibly 0) to indicate EOF, or -1 to indicate error.
- */
-ssize_t
-xread(struct file_stream *strm, void *buf, size_t count)
-{
-	char *p = buf;
-	size_t orig_count = count;
-
-	while (count != 0) {
-		ssize_t res = read(strm->fd, p, MIN(count, INT_MAX));
-		if (res == 0)
-			break;
-		if (res < 0) {
-			if (errno == EAGAIN || errno == EINTR)
-				continue;
-			msg_errno("Error reading from %"TS, strm->name);
-			return -1;
-		}
-		p += res;
-		count -= res;
-	}
-	return orig_count - count;
-}
-
-/* Write to a file, returning 0 if all bytes were written or -1 on error */
-int
-full_write(struct file_stream *strm, const void *buf, size_t count)
-{
-	const char *p = buf;
-
-	while (count != 0) {
-		ssize_t res = write(strm->fd, p, MIN(count, INT_MAX));
-		if (res <= 0) {
-			msg_errno("Error writing to %"TS, strm->name);
-			return -1;
-		}
-		p += res;
-		count -= res;
-	}
-	return 0;
-}
-
-/* Close a file, returning 0 on success or -1 on error */
-int
-xclose(struct file_stream *strm)
-{
-	int ret = 0;
-
-	if (!strm->is_standard_stream) {
-		if (close(strm->fd) != 0) {
-			msg_errno("Error closing %"TS, strm->name);
-			ret = -1;
-		}
-		free(strm->name);
-	}
-
-	if (strm->mmap_token != NULL) {
-#ifdef _WIN32
-		UnmapViewOfFile(strm->mmap_mem);
-		CloseHandle((HANDLE)strm->mmap_token);
-#else
-		munmap(strm->mmap_mem, strm->mmap_size);
-#endif
-		strm->mmap_token = NULL;
-	} else {
-		free(strm->mmap_mem);
-	}
-	strm->mmap_mem = NULL;
-	strm->fd = -1;
-	strm->name = NULL;
-	return ret;
-}
-
-/*
- * Parse the compression level given on the command line, returning the
- * compression level on success or -1 on error
- */
-int
-parse_compression_level(tchar opt_char, const tchar *arg)
-{
-	int level;
-
-	if (arg == NULL)
-		arg = T("");
-
-	if (opt_char < '0' || opt_char > '9')
-		goto invalid;
-	level = opt_char - '0';
-
-	if (arg[0] != '\0') {
-		if (arg[0] < '0' || arg[0] > '9')
-			goto invalid;
-		if (arg[1] != '\0')	/* Levels are at most 2 digits */
-			goto invalid;
-		if (level == 0)		/* Don't allow arguments like "-01" */
-			goto invalid;
-		level = (level * 10) + (arg[0] - '0');
-	}
-
-	if (level < 0 || level > 12)
-		goto invalid;
-
-	return level;
-
-invalid:
-	msg("Invalid compression level: \"%"TC"%"TS"\".  "
-	    "Must be an integer in the range [0, 12].", opt_char, arg);
-	return -1;
-}
-
-/* Allocate a new DEFLATE compressor */
-struct libdeflate_compressor *
-alloc_compressor(int level)
-{
-	struct libdeflate_compressor *c;
-
-	c = libdeflate_alloc_compressor(level);
-	if (c == NULL) {
-		msg_errno("Unable to allocate compressor with "
-			  "compression level %d", level);
-	}
-	return c;
-}
-
-/* Allocate a new DEFLATE decompressor */
-struct libdeflate_decompressor *
-alloc_decompressor(void)
-{
-	struct libdeflate_decompressor *d;
-
-	d = libdeflate_alloc_decompressor();
-	if (d == NULL)
-		msg_errno("Unable to allocate decompressor");
-
-	return d;
-}