/*
- * "$Id: file.c 7672 2008-06-18 22:03:02Z mike $"
+ * File functions for CUPS.
*
- * File functions for CUPS.
+ * Since stdio files max out at 256 files on many systems, we have to
+ * write similar functions without this limit. At the same time, using
+ * our own file functions allows us to provide transparent support of
+ * different line endings, gzip'd print files, PPD files, etc.
*
- * Since stdio files max out at 256 files on many systems, we have to
- * write similar functions without this limit. At the same time, using
- * our own file functions allows us to provide transparent support of
- * gzip'd print files, PPD files, etc.
+ * Copyright © 2007-2019 by Apple Inc.
+ * Copyright © 1997-2007 by Easy Software Products, all rights reserved.
*
- * Copyright 2007-2011 by Apple Inc.
- * Copyright 1997-2007 by Easy Software Products, all rights reserved.
- *
- * These coded instructions, statements, and computer programs are the
- * property of Apple Inc. and are protected by Federal copyright
- * law. Distribution and use rights are outlined in the file "LICENSE.txt"
- * which should have been included with this file. If this file is
- * file is missing or damaged, see the license at "http://www.cups.org/".
- *
- * Contents:
- *
- * _cupsFileCheck() - Check the permissions of the given filename.
- * _cupsFileCheckFilter() - Report file check results as CUPS filter messages.
- * cupsFileClose() - Close a CUPS file.
- * cupsFileCompression() - Return whether a file is compressed.
- * cupsFileEOF() - Return the end-of-file status.
- * cupsFileFind() - Find a file using the specified path.
- * cupsFileFlush() - Flush pending output.
- * cupsFileGetChar() - Get a single character from a file.
- * cupsFileGetConf() - Get a line from a configuration file.
- * cupsFileGetLine() - Get a CR and/or LF-terminated line that may
- * contain binary data.
- * cupsFileGets() - Get a CR and/or LF-terminated line.
- * cupsFileLock() - Temporarily lock access to a file.
- * cupsFileNumber() - Return the file descriptor associated with a CUPS
- * file.
- * cupsFileOpen() - Open a CUPS file.
- * cupsFileOpenFd() - Open a CUPS file using a file descriptor.
- * cupsFilePeekChar() - Peek at the next character from a file.
- * cupsFilePrintf() - Write a formatted string.
- * cupsFilePutChar() - Write a character.
- * cupsFilePutConf() - Write a configuration line.
- * cupsFilePuts() - Write a string.
- * cupsFileRead() - Read from a file.
- * cupsFileRewind() - Set the current file position to the beginning of
- * the file.
- * cupsFileSeek() - Seek in a file.
- * cupsFileStderr() - Return a CUPS file associated with stderr.
- * cupsFileStdin() - Return a CUPS file associated with stdin.
- * cupsFileStdout() - Return a CUPS file associated with stdout.
- * cupsFileTell() - Return the current file position.
- * cupsFileUnlock() - Unlock access to a file.
- * cupsFileWrite() - Write to a file.
- * cups_compress() - Compress a buffer of data.
- * cups_fill() - Fill the input buffer.
- * cups_open() - Safely open a file for writing.
- * cups_read() - Read from a file descriptor.
- * cups_write() - Write to a file descriptor.
+ * Licensed under Apache License v2.0. See the file "LICENSE" for more
+ * information.
*/
/*
*/
#include "file-private.h"
+#include "debug-internal.h"
#include <sys/stat.h>
#include <sys/types.h>
+# ifdef HAVE_LIBZ
+# include <zlib.h>
+# endif /* HAVE_LIBZ */
+
+
+/*
+ * Internal structures...
+ */
+
+struct _cups_file_s /**** CUPS file structure... ****/
+
+{
+ int fd; /* File descriptor */
+ char mode, /* Mode ('r' or 'w') */
+ compressed, /* Compression used? */
+ is_stdio, /* stdin/out/err? */
+ eof, /* End of file? */
+ buf[4096], /* Buffer */
+ *ptr, /* Pointer into buffer */
+ *end; /* End of buffer data */
+ off_t pos, /* Position in file */
+ bufpos; /* File position for start of buffer */
+
+#ifdef HAVE_LIBZ
+ z_stream stream; /* (De)compression stream */
+ Bytef cbuf[4096]; /* (De)compression buffer */
+ uLong crc; /* (De)compression CRC */
+#endif /* HAVE_LIBZ */
+
+ char *printf_buffer; /* cupsFilePrintf buffer */
+ size_t printf_size; /* Size of cupsFilePrintf buffer */
+};
+
/*
* Local functions...
static ssize_t cups_write(cups_file_t *fp, const char *buf, size_t bytes);
+#ifndef _WIN32
/*
* '_cupsFileCheck()' - Check the permissions of the given filename.
*/
fprintf(stderr, "%s: %s\n", prefix, message);
}
+#endif /* !_WIN32 */
/*
* 'cupsFileClose()' - Close a CUPS file.
*
- * @since CUPS 1.2/Mac OS X 10.5@
+ * @since CUPS 1.2/macOS 10.5@
*/
int /* O - 0 on success, -1 on error */
int fd; /* File descriptor */
char mode; /* Open mode */
int status; /* Return status */
- int is_stdio; /* Is a stdio file? */
- DEBUG_printf(("cupsFileClose(fp=%p)", fp));
+ DEBUG_printf(("cupsFileClose(fp=%p)", (void *)fp));
/*
* Range check...
if (fp->stream.next_out > fp->cbuf)
{
if (cups_write(fp, (char *)fp->cbuf,
- fp->stream.next_out - fp->cbuf) < 0)
+ (size_t)(fp->stream.next_out - fp->cbuf)) < 0)
status = -1;
fp->stream.next_out = fp->cbuf;
* Write the CRC and length...
*/
- trailer[0] = fp->crc;
- trailer[1] = fp->crc >> 8;
- trailer[2] = fp->crc >> 16;
- trailer[3] = fp->crc >> 24;
- trailer[4] = fp->pos;
- trailer[5] = fp->pos >> 8;
- trailer[6] = fp->pos >> 16;
- trailer[7] = fp->pos >> 24;
+ trailer[0] = (unsigned char)fp->crc;
+ trailer[1] = (unsigned char)(fp->crc >> 8);
+ trailer[2] = (unsigned char)(fp->crc >> 16);
+ trailer[3] = (unsigned char)(fp->crc >> 24);
+ trailer[4] = (unsigned char)fp->pos;
+ trailer[5] = (unsigned char)(fp->pos >> 8);
+ trailer[6] = (unsigned char)(fp->pos >> 16);
+ trailer[7] = (unsigned char)(fp->pos >> 24);
if (cups_write(fp, (char *)trailer, 8) < 0)
status = -1;
#endif /* HAVE_LIBZ */
/*
+ * If this is one of the cupsFileStdin/out/err files, return now and don't
+ * actually free memory or close (these last the life of the process...)
+ */
+
+ if (fp->is_stdio)
+ return (status);
+
+/*
* Save the file descriptor we used and free memory...
*/
- fd = fp->fd;
- mode = fp->mode;
- is_stdio = fp->is_stdio;
+ fd = fp->fd;
+ mode = fp->mode;
if (fp->printf_buffer)
free(fp->printf_buffer);
if (mode == 's')
{
- if (closesocket(fd) < 0)
- status = -1;
- }
- else if (!is_stdio)
- {
- if (close(fd) < 0)
+ if (httpAddrClose(NULL, fd) < 0)
status = -1;
}
+ else if (close(fd) < 0)
+ status = -1;
return (status);
}
/*
* 'cupsFileCompression()' - Return whether a file is compressed.
*
- * @since CUPS 1.2/Mac OS X 10.5@
+ * @since CUPS 1.2/macOS 10.5@
*/
int /* O - @code CUPS_FILE_NONE@ or @code CUPS_FILE_GZIP@ */
/*
* 'cupsFileEOF()' - Return the end-of-file status.
*
- * @since CUPS 1.2/Mac OS X 10.5@
+ * @since CUPS 1.2/macOS 10.5@
*/
int /* O - 1 on end of file, 0 otherwise */
* the supplied paths, @code NULL@ is returned. A @code NULL@ path only
* matches the current directory.
*
- * @since CUPS 1.2/Mac OS X 10.5@
+ * @since CUPS 1.2/macOS 10.5@
*/
const char * /* O - Full path to file or @code NULL@ if not found */
* Range check input...
*/
- DEBUG_printf(("cupsFileFind(filename=\"%s\", path=\"%s\", executable=%d, "
- "buffer=%p, bufsize=%d)", filename, path, executable, buffer,
- bufsize));
+ DEBUG_printf(("cupsFileFind(filename=\"%s\", path=\"%s\", executable=%d, buffer=%p, bufsize=%d)", filename, path, executable, (void *)buffer, bufsize));
if (!filename || !buffer || bufsize < 2)
return (NULL);
if (!access(filename, 0))
{
- strlcpy(buffer, filename, bufsize);
+ strlcpy(buffer, filename, (size_t)bufsize);
return (buffer);
}
else
while (*path)
{
-#ifdef WIN32
+#ifdef _WIN32
if (*path == ';' || (*path == ':' && ((bufptr - buffer) > 1 || !isalpha(buffer[0] & 255))))
#else
if (*path == ';' || *path == ':')
-#endif /* WIN32 */
+#endif /* _WIN32 */
{
if (bufptr > buffer && bufptr[-1] != '/' && bufptr < bufend)
*bufptr++ = '/';
- strlcpy(bufptr, filename, bufend - bufptr);
+ strlcpy(bufptr, filename, (size_t)(bufend - bufptr));
-#ifdef WIN32
+#ifdef _WIN32
if (!access(buffer, 0))
#else
if (!access(buffer, executable ? X_OK : 0))
-#endif /* WIN32 */
+#endif /* _WIN32 */
{
DEBUG_printf(("1cupsFileFind: Returning \"%s\"", buffer));
return (buffer);
if (bufptr > buffer && bufptr[-1] != '/' && bufptr < bufend)
*bufptr++ = '/';
- strlcpy(bufptr, filename, bufend - bufptr);
+ strlcpy(bufptr, filename, (size_t)(bufend - bufptr));
if (!access(buffer, 0))
{
/*
* 'cupsFileFlush()' - Flush pending output.
*
- * @since CUPS 1.2/Mac OS X 10.5@
+ * @since CUPS 1.2/macOS 10.5@
*/
int /* O - 0 on success, -1 on error */
ssize_t bytes; /* Bytes to write */
- DEBUG_printf(("cupsFileFlush(fp=%p)", fp));
+ DEBUG_printf(("cupsFileFlush(fp=%p)", (void *)fp));
/*
* Range check input...
{
#ifdef HAVE_LIBZ
if (fp->compressed)
- bytes = cups_compress(fp, fp->buf, bytes);
+ bytes = cups_compress(fp, fp->buf, (size_t)bytes);
else
#endif /* HAVE_LIBZ */
- bytes = cups_write(fp, fp->buf, bytes);
+ bytes = cups_write(fp, fp->buf, (size_t)bytes);
if (bytes < 0)
return (-1);
/*
* 'cupsFileGetChar()' - Get a single character from a file.
*
- * @since CUPS 1.2/Mac OS X 10.5@
+ * @since CUPS 1.2/macOS 10.5@
*/
int /* O - Character or -1 on end of file */
* Range check input...
*/
+ DEBUG_printf(("4cupsFileGetChar(fp=%p)", (void *)fp));
+
if (!fp || (fp->mode != 'r' && fp->mode != 's'))
{
DEBUG_puts("5cupsFileGetChar: Bad arguments!");
return (-1);
}
+ if (fp->eof)
+ {
+ DEBUG_puts("5cupsFileGetChar: End-of-file!");
+ return (-1);
+ }
+
/*
* If the input buffer is empty, try to read more data...
*/
+ DEBUG_printf(("5cupsFileGetChar: fp->eof=%d, fp->ptr=%p, fp->end=%p", fp->eof, (void *)fp->ptr, (void *)fp->end));
+
if (fp->ptr >= fp->end)
- if (cups_fill(fp) < 0)
+ if (cups_fill(fp) <= 0)
{
DEBUG_puts("5cupsFileGetChar: Unable to fill buffer!");
return (-1);
/*
* 'cupsFileGetConf()' - Get a line from a configuration file.
*
- * @since CUPS 1.2/Mac OS X 10.5@
+ * @since CUPS 1.2/macOS 10.5@
*/
char * /* O - Line read or @code NULL@ on end of file or error */
*/
DEBUG_printf(("2cupsFileGetConf(fp=%p, buf=%p, buflen=" CUPS_LLFMT
- ", value=%p, linenum=%p)", fp, buf, CUPS_LLCAST buflen,
- value, linenum));
+ ", value=%p, linenum=%p)", (void *)fp, (void *)buf, CUPS_LLCAST buflen, (void *)value, (void *)linenum));
if (!fp || (fp->mode != 'r' && fp->mode != 's') ||
!buf || buflen < 2 || !value)
* nul-terminated, however you should use the returned length to determine
* the number of bytes on the line.
*
- * @since CUPS 1.2/Mac OS X 10.5@
+ * @since CUPS 1.2/macOS 10.5@
*/
size_t /* O - Number of bytes on line or 0 on end of file */
* Range check input...
*/
- DEBUG_printf(("2cupsFileGetLine(fp=%p, buf=%p, buflen=" CUPS_LLFMT ")",
- fp, buf, CUPS_LLCAST buflen));
+ DEBUG_printf(("2cupsFileGetLine(fp=%p, buf=%p, buflen=" CUPS_LLFMT ")", (void *)fp, (void *)buf, CUPS_LLCAST buflen));
if (!fp || (fp->mode != 'r' && fp->mode != 's') || !buf || buflen < 3)
return (0);
DEBUG_printf(("4cupsFileGetLine: pos=" CUPS_LLFMT, CUPS_LLCAST fp->pos));
- return (ptr - buf);
+ return ((size_t)(ptr - buf));
}
/*
* 'cupsFileGets()' - Get a CR and/or LF-terminated line.
*
- * @since CUPS 1.2/Mac OS X 10.5@
+ * @since CUPS 1.2/macOS 10.5@
*/
char * /* O - Line read or @code NULL@ on end of file or error */
* Range check input...
*/
- DEBUG_printf(("2cupsFileGets(fp=%p, buf=%p, buflen=" CUPS_LLFMT ")", fp, buf,
- CUPS_LLCAST buflen));
+ DEBUG_printf(("2cupsFileGets(fp=%p, buf=%p, buflen=" CUPS_LLFMT ")", (void *)fp, (void *)buf, CUPS_LLCAST buflen));
if (!fp || (fp->mode != 'r' && fp->mode != 's') || !buf || buflen < 2)
return (NULL);
break;
}
else
- *ptr++ = ch;
+ *ptr++ = (char)ch;
}
*ptr = '\0';
/*
* 'cupsFileLock()' - Temporarily lock access to a file.
*
- * @since CUPS 1.2/Mac OS X 10.5@
+ * @since CUPS 1.2/macOS 10.5@
*/
int /* O - 0 on success, -1 on error */
* Try the lock...
*/
-#ifdef WIN32
+#ifdef _WIN32
return (_locking(fp->fd, block ? _LK_LOCK : _LK_NBLCK, 0));
#else
return (lockf(fp->fd, block ? F_LOCK : F_TLOCK, 0));
-#endif /* WIN32 */
+#endif /* _WIN32 */
}
/*
* 'cupsFileNumber()' - Return the file descriptor associated with a CUPS file.
*
- * @since CUPS 1.2/Mac OS X 10.5@
+ * @since CUPS 1.2/macOS 10.5@
*/
int /* O - File descriptor */
* connection as needed, generally preferring IPv6 connections when there is
* a choice.
*
- * @since CUPS 1.2/Mac OS X 10.5@
+ * @since CUPS 1.2/macOS 10.5@
*/
cups_file_t * /* O - CUPS file or @code NULL@ if the file or socket cannot be opened */
}
if (fd >= 0)
-#ifdef WIN32
+#ifdef _WIN32
_chsize(fd, 0);
#else
ftruncate(fd, 0);
-#endif /* WIN32 */
+#endif /* _WIN32 */
break;
case 's' : /* Read/write socket */
if ((fp = cupsFileOpenFd(fd, mode)) == NULL)
{
if (*mode == 's')
- closesocket(fd);
+ httpAddrClose(NULL, fd);
else
close(fd);
}
* supplied which enables Flate compression of the file. Compression is
* not supported for the "a" (append) mode.
*
- * @since CUPS 1.2/Mac OS X 10.5@
+ * @since CUPS 1.2/macOS 10.5@
*/
cups_file_t * /* O - CUPS file or @code NULL@ if the file could not be opened */
header[1] = 0x8b;
header[2] = Z_DEFLATED;
header[3] = 0;
- header[4] = curtime;
- header[5] = curtime >> 8;
- header[6] = curtime >> 16;
- header[7] = curtime >> 24;
+ header[4] = (unsigned char)curtime;
+ header[5] = (unsigned char)(curtime >> 8);
+ header[6] = (unsigned char)(curtime >> 16);
+ header[7] = (unsigned char)(curtime >> 24);
header[8] = 0;
header[9] = 0x03;
* Don't pass this file to child processes...
*/
-#ifndef WIN32
+#ifndef _WIN32
fcntl(fp->fd, F_SETFD, fcntl(fp->fd, F_GETFD) | FD_CLOEXEC);
-#endif /* !WIN32 */
+#endif /* !_WIN32 */
return (fp);
}
+/*
+ * '_cupsFilePeekAhead()' - See if the requested character is buffered up.
+ */
+
+int /* O - 1 if present, 0 otherwise */
+_cupsFilePeekAhead(cups_file_t *fp, /* I - CUPS file */
+ int ch) /* I - Character */
+{
+ return (fp && fp->ptr && memchr(fp->ptr, ch, (size_t)(fp->end - fp->ptr)));
+}
+
+
/*
* 'cupsFilePeekChar()' - Peek at the next character from a file.
*
- * @since CUPS 1.2/Mac OS X 10.5@
+ * @since CUPS 1.2/macOS 10.5@
*/
int /* O - Character or -1 on end of file */
*/
if (fp->ptr >= fp->end)
- if (cups_fill(fp) < 0)
+ if (cups_fill(fp) <= 0)
return (-1);
/*
/*
* 'cupsFilePrintf()' - Write a formatted string.
*
- * @since CUPS 1.2/Mac OS X 10.5@
+ * @since CUPS 1.2/macOS 10.5@
*/
int /* O - Number of bytes written or -1 on error */
ssize_t bytes; /* Formatted size */
- DEBUG_printf(("2cupsFilePrintf(fp=%p, format=\"%s\", ...)", fp, format));
+ DEBUG_printf(("2cupsFilePrintf(fp=%p, format=\"%s\", ...)", (void *)fp, format));
if (!fp || !format || (fp->mode != 'w' && fp->mode != 's'))
return (-1);
if (bytes > 65535)
return (-1);
- if ((temp = realloc(fp->printf_buffer, bytes + 1)) == NULL)
+ if ((temp = realloc(fp->printf_buffer, (size_t)(bytes + 1))) == NULL)
return (-1);
fp->printf_buffer = temp;
- fp->printf_size = bytes + 1;
+ fp->printf_size = (size_t)(bytes + 1);
va_start(ap, format);
bytes = vsnprintf(fp->printf_buffer, fp->printf_size, format, ap);
if (fp->mode == 's')
{
- if (cups_write(fp, fp->printf_buffer, bytes) < 0)
+ if (cups_write(fp, fp->printf_buffer, (size_t)bytes) < 0)
return (-1);
fp->pos += bytes;
DEBUG_printf(("4cupsFilePrintf: pos=" CUPS_LLFMT, CUPS_LLCAST fp->pos));
- return (bytes);
+ return ((int)bytes);
}
if ((fp->ptr + bytes) > fp->end)
DEBUG_printf(("4cupsFilePrintf: pos=" CUPS_LLFMT, CUPS_LLCAST fp->pos));
- if (bytes > sizeof(fp->buf))
+ if ((size_t)bytes > sizeof(fp->buf))
{
#ifdef HAVE_LIBZ
if (fp->compressed)
- return (cups_compress(fp, fp->printf_buffer, bytes));
+ return ((int)cups_compress(fp, fp->printf_buffer, (size_t)bytes));
else
#endif /* HAVE_LIBZ */
- return (cups_write(fp, fp->printf_buffer, bytes));
+ return ((int)cups_write(fp, fp->printf_buffer, (size_t)bytes));
}
else
{
- memcpy(fp->ptr, fp->printf_buffer, bytes);
+ memcpy(fp->ptr, fp->printf_buffer, (size_t)bytes);
fp->ptr += bytes;
- return (bytes);
+
+ if (fp->is_stdio && cupsFileFlush(fp))
+ return (-1);
+ else
+ return ((int)bytes);
}
}
/*
* 'cupsFilePutChar()' - Write a character.
*
- * @since CUPS 1.2/Mac OS X 10.5@
+ * @since CUPS 1.2/macOS 10.5@
*/
int /* O - 0 on success, -1 on error */
char ch; /* Output character */
- ch = c;
+ ch = (char)c;
if (send(fp->fd, &ch, 1, 0) < 1)
return (-1);
if (cupsFileFlush(fp))
return (-1);
- *(fp->ptr) ++ = c;
+ *(fp->ptr) ++ = (char)c;
}
fp->pos ++;
*
* This function handles any comment escaping of the value.
*
- * @since CUPS 1.4/Mac OS X 10.6@
+ * @since CUPS 1.4/macOS 10.6@
*/
ssize_t /* O - Number of bytes written or -1 on error */
* Need to quote the first # in the info string...
*/
- if ((temp = cupsFileWrite(fp, value, ptr - value)) < 0)
+ if ((temp = cupsFileWrite(fp, value, (size_t)(ptr - value))) < 0)
return (-1);
bytes += temp;
*
* Like the @code fputs@ function, no newline is appended to the string.
*
- * @since CUPS 1.2/Mac OS X 10.5@
+ * @since CUPS 1.2/macOS 10.5@
*/
int /* O - Number of bytes written or -1 on error */
* Write the string...
*/
- bytes = (int)strlen(s);
+ bytes = (ssize_t)strlen(s);
if (fp->mode == 's')
{
- if (cups_write(fp, s, bytes) < 0)
+ if (cups_write(fp, s, (size_t)bytes) < 0)
return (-1);
fp->pos += bytes;
DEBUG_printf(("4cupsFilePuts: pos=" CUPS_LLFMT, CUPS_LLCAST fp->pos));
- return (bytes);
+ return ((int)bytes);
}
if ((fp->ptr + bytes) > fp->end)
DEBUG_printf(("4cupsFilePuts: pos=" CUPS_LLFMT, CUPS_LLCAST fp->pos));
- if (bytes > sizeof(fp->buf))
+ if ((size_t)bytes > sizeof(fp->buf))
{
#ifdef HAVE_LIBZ
if (fp->compressed)
- return (cups_compress(fp, s, bytes));
+ return ((int)cups_compress(fp, s, (size_t)bytes));
else
#endif /* HAVE_LIBZ */
- return (cups_write(fp, s, bytes));
+ return ((int)cups_write(fp, s, (size_t)bytes));
}
else
{
- memcpy(fp->ptr, s, bytes);
+ memcpy(fp->ptr, s, (size_t)bytes);
fp->ptr += bytes;
- return (bytes);
+
+ if (fp->is_stdio && cupsFileFlush(fp))
+ return (-1);
+ else
+ return ((int)bytes);
}
}
/*
* 'cupsFileRead()' - Read from a file.
*
- * @since CUPS 1.2/Mac OS X 10.5@
+ * @since CUPS 1.2/macOS 10.5@
*/
ssize_t /* O - Number of bytes read or -1 on error */
ssize_t count; /* Bytes read */
- DEBUG_printf(("2cupsFileRead(fp=%p, buf=%p, bytes=" CUPS_LLFMT ")", fp, buf,
- CUPS_LLCAST bytes));
+ DEBUG_printf(("2cupsFileRead(fp=%p, buf=%p, bytes=" CUPS_LLFMT ")", (void *)fp, (void *)buf, CUPS_LLCAST bytes));
/*
* Range check input...
if (bytes == 0)
return (0);
+ if (fp->eof)
+ {
+ DEBUG_puts("5cupsFileRead: End-of-file!");
+ return (-1);
+ }
+
/*
* Loop until all bytes are read...
*/
if (count > (ssize_t)bytes)
count = (ssize_t)bytes;
- memcpy(buf, fp->ptr, count);
+ memcpy(buf, fp->ptr,(size_t) count);
fp->ptr += count;
fp->pos += count;
* Update the counts for the last read...
*/
- bytes -= count;
- total += count;
+ bytes -= (size_t)count;
+ total += (size_t)count;
buf += count;
}
* 'cupsFileRewind()' - Set the current file position to the beginning of the
* file.
*
- * @since CUPS 1.2/Mac OS X 10.5@
+ * @since CUPS 1.2/macOS 10.5@
*/
off_t /* O - New file position or -1 on error */
* Range check input...
*/
- DEBUG_printf(("cupsFileRewind(fp=%p)", fp));
+ DEBUG_printf(("cupsFileRewind(fp=%p)", (void *)fp));
DEBUG_printf(("2cupsFileRewind: pos=" CUPS_LLFMT, CUPS_LLCAST fp->pos));
if (!fp || fp->mode != 'r')
/*
* 'cupsFileSeek()' - Seek in a file.
*
- * @since CUPS 1.2/Mac OS X 10.5@
+ * @since CUPS 1.2/macOS 10.5@
*/
off_t /* O - New file position or -1 on error */
ssize_t bytes; /* Number bytes in buffer */
- DEBUG_printf(("cupsFileSeek(fp=%p, pos=" CUPS_LLFMT ")", fp,
- CUPS_LLCAST pos));
+ DEBUG_printf(("cupsFileSeek(fp=%p, pos=" CUPS_LLFMT ")", (void *)fp, CUPS_LLCAST pos));
DEBUG_printf(("2cupsFileSeek: fp->pos=" CUPS_LLFMT, CUPS_LLCAST fp->pos));
- DEBUG_printf(("2cupsFileSeek: fp->ptr=%p, fp->end=%p", fp->ptr, fp->end));
+ DEBUG_printf(("2cupsFileSeek: fp->ptr=%p, fp->end=%p", (void *)fp->ptr, (void *)fp->end));
/*
* Range check input...
* Preload a buffer to determine whether the file is compressed...
*/
- if (cups_fill(fp) < 0)
+ if (cups_fill(fp) <= 0)
return (-1);
}
#endif /* HAVE_LIBZ */
/*
* 'cupsFileStderr()' - Return a CUPS file associated with stderr.
*
- * @since CUPS 1.2/Mac OS X 10.5@
+ * @since CUPS 1.2/macOS 10.5@
*/
cups_file_t * /* O - CUPS file */
/*
* 'cupsFileStdin()' - Return a CUPS file associated with stdin.
*
- * @since CUPS 1.2/Mac OS X 10.5@
+ * @since CUPS 1.2/macOS 10.5@
*/
cups_file_t * /* O - CUPS file */
/*
* 'cupsFileStdout()' - Return a CUPS file associated with stdout.
*
- * @since CUPS 1.2/Mac OS X 10.5@
+ * @since CUPS 1.2/macOS 10.5@
*/
cups_file_t * /* O - CUPS file */
/*
* 'cupsFileTell()' - Return the current file position.
*
- * @since CUPS 1.2/Mac OS X 10.5@
+ * @since CUPS 1.2/macOS 10.5@
*/
off_t /* O - File position */
cupsFileTell(cups_file_t *fp) /* I - CUPS file */
{
- DEBUG_printf(("2cupsFileTell(fp=%p)", fp));
- DEBUG_printf(("3cupsFileTell: pos=" CUPS_LLFMT,
- CUPS_LLCAST (fp ? fp->pos : -1)));
+ DEBUG_printf(("2cupsFileTell(fp=%p)", (void *)fp));
+ DEBUG_printf(("3cupsFileTell: pos=" CUPS_LLFMT, CUPS_LLCAST (fp ? fp->pos : -1)));
return (fp ? fp->pos : 0);
}
/*
* 'cupsFileUnlock()' - Unlock access to a file.
*
- * @since CUPS 1.2/Mac OS X 10.5@
+ * @since CUPS 1.2/macOS 10.5@
*/
int /* O - 0 on success, -1 on error */
* Range check...
*/
- DEBUG_printf(("cupsFileUnlock(fp=%p)", fp));
+ DEBUG_printf(("cupsFileUnlock(fp=%p)", (void *)fp));
if (!fp || fp->mode == 's')
return (-1);
* Unlock...
*/
-#ifdef WIN32
+#ifdef _WIN32
return (_locking(fp->fd, _LK_UNLCK, 0));
#else
return (lockf(fp->fd, F_ULOCK, 0));
-#endif /* WIN32 */
+#endif /* _WIN32 */
}
/*
* 'cupsFileWrite()' - Write to a file.
*
- * @since CUPS 1.2/Mac OS X 10.5@
+ * @since CUPS 1.2/macOS 10.5@
*/
ssize_t /* O - Number of bytes written or -1 on error */
* Range check input...
*/
- DEBUG_printf(("2cupsFileWrite(fp=%p, buf=%p, bytes=" CUPS_LLFMT ")",
- fp, buf, CUPS_LLCAST bytes));
+ DEBUG_printf(("2cupsFileWrite(fp=%p, buf=%p, bytes=" CUPS_LLFMT ")", (void *)fp, (void *)buf, CUPS_LLCAST bytes));
if (!fp || !buf || (fp->mode != 'w' && fp->mode != 's'))
return (-1);
const char *buf, /* I - Buffer */
size_t bytes) /* I - Number bytes */
{
- DEBUG_printf(("7cups_compress(fp=%p, buf=%p, bytes=" CUPS_LLFMT ")", fp, buf,
- CUPS_LLCAST bytes));
+ DEBUG_printf(("7cups_compress(fp=%p, buf=%p, bytes=" CUPS_LLFMT ")", (void *)fp, (void *)buf, CUPS_LLCAST bytes));
/*
* Update the CRC...
*/
- fp->crc = crc32(fp->crc, (const Bytef *)buf, bytes);
+ fp->crc = crc32(fp->crc, (const Bytef *)buf, (uInt)bytes);
/*
* Deflate the bytes...
*/
fp->stream.next_in = (Bytef *)buf;
- fp->stream.avail_in = bytes;
+ fp->stream.avail_in = (uInt)bytes;
while (fp->stream.avail_in > 0)
{
DEBUG_printf(("9cups_compress: avail_in=%d, avail_out=%d",
fp->stream.avail_in, fp->stream.avail_out));
- if (fp->stream.avail_out < (int)(sizeof(fp->cbuf) / 8))
+ if (fp->stream.avail_out < (uInt)(sizeof(fp->cbuf) / 8))
{
- if (cups_write(fp, (char *)fp->cbuf, fp->stream.next_out - fp->cbuf) < 0)
+ if (cups_write(fp, (char *)fp->cbuf, (size_t)(fp->stream.next_out - fp->cbuf)) < 0)
return (-1);
fp->stream.next_out = fp->cbuf;
deflate(&(fp->stream), Z_NO_FLUSH);
}
- return (bytes);
+ return ((ssize_t)bytes);
}
#endif /* HAVE_LIBZ */
#endif /* HAVE_LIBZ */
- DEBUG_printf(("7cups_fill(fp=%p)", fp));
- DEBUG_printf(("9cups_fill: fp->ptr=%p, fp->end=%p, fp->buf=%p, "
- "fp->bufpos=" CUPS_LLFMT ", fp->eof=%d",
- fp->ptr, fp->end, fp->buf, CUPS_LLCAST fp->bufpos, fp->eof));
+ DEBUG_printf(("7cups_fill(fp=%p)", (void *)fp));
+ DEBUG_printf(("9cups_fill: fp->ptr=%p, fp->end=%p, fp->buf=%p, fp->bufpos=" CUPS_LLFMT ", fp->eof=%d", (void *)fp->ptr, (void *)fp->end, (void *)fp->buf, CUPS_LLCAST fp->bufpos, fp->eof));
if (fp->ptr && fp->end)
fp->bufpos += fp->end - fp->buf;
DEBUG_printf(("9cups_fill: cups_read() returned " CUPS_LLFMT,
CUPS_LLCAST bytes));
+ fp->eof = 1;
+
return (-1);
}
* Can't read from file!
*/
+ DEBUG_puts("9cups_fill: Extra gzip header data missing, returning -1.");
+
+ fp->eof = 1;
+ errno = EIO;
+
return (-1);
}
* Can't read from file!
*/
+ DEBUG_puts("9cups_fill: Extra gzip header data does not fit in initial buffer, returning -1.");
+
+ fp->eof = 1;
+ errno = EIO;
+
return (-1);
}
}
* Can't read from file!
*/
+ DEBUG_puts("9cups_fill: Original filename in gzip header data does not fit in initial buffer, returning -1.");
+
+ fp->eof = 1;
+ errno = EIO;
+
return (-1);
}
}
* Can't read from file!
*/
+ DEBUG_puts("9cups_fill: Comment in gzip header data does not fit in initial buffer, returning -1.");
+
+ fp->eof = 1;
+ errno = EIO;
+
return (-1);
}
}
* Can't read from file!
*/
+ DEBUG_puts("9cups_fill: Header CRC in gzip header data does not fit in initial buffer, returning -1.");
+
+ fp->eof = 1;
+ errno = EIO;
+
return (-1);
}
}
*/
if ((bytes = end - ptr) > 0)
- memcpy(fp->cbuf, ptr, bytes);
+ memcpy(fp->cbuf, ptr, (size_t)bytes);
/*
* Setup the decompressor data...
fp->stream.opaque = (voidpf)0;
fp->stream.next_in = (Bytef *)fp->cbuf;
fp->stream.next_out = NULL;
- fp->stream.avail_in = bytes;
+ fp->stream.avail_in = (uInt)bytes;
fp->stream.avail_out = 0;
fp->crc = crc32(0L, Z_NULL, 0);
- if (inflateInit2(&(fp->stream), -15) != Z_OK)
+ if ((status = inflateInit2(&(fp->stream), -15)) != Z_OK)
+ {
+ DEBUG_printf(("9cups_fill: inflateInit2 returned %d, returning -1.", status));
+
+ fp->eof = 1;
+ errno = EIO;
+
return (-1);
+ }
fp->compressed = 1;
}
*/
if (fp->eof)
- return (-1);
+ {
+ DEBUG_puts("9cups_fill: EOF, returning 0.");
+
+ return (0);
+ }
/*
* Fill the decompression buffer as needed...
if (fp->stream.avail_in == 0)
{
if ((bytes = cups_read(fp, (char *)fp->cbuf, sizeof(fp->cbuf))) <= 0)
- return (-1);
+ {
+ DEBUG_printf(("9cups_fill: cups_read error, returning %d.", (int)bytes));
+
+ fp->eof = 1;
+
+ return (bytes);
+ }
fp->stream.next_in = fp->cbuf;
- fp->stream.avail_in = bytes;
+ fp->stream.avail_in = (uInt)bytes;
}
/*
if (fp->stream.next_out > (Bytef *)fp->buf)
fp->crc = crc32(fp->crc, (Bytef *)fp->buf,
- fp->stream.next_out - (Bytef *)fp->buf);
+ (uInt)(fp->stream.next_out - (Bytef *)fp->buf));
if (status == Z_STREAM_END)
{
unsigned char trailer[8]; /* Trailer bytes */
uLong tcrc; /* Trailer CRC */
+ ssize_t tbytes = 0; /* Number of bytes */
-
- if (read(fp->fd, trailer, sizeof(trailer)) < sizeof(trailer))
+ if (fp->stream.avail_in > 0)
{
- /*
- * Can't get it, so mark end-of-file...
- */
+ if (fp->stream.avail_in > sizeof(trailer))
+ tbytes = (ssize_t)sizeof(trailer);
+ else
+ tbytes = (ssize_t)fp->stream.avail_in;
- fp->eof = 1;
+ memcpy(trailer, fp->stream.next_in, (size_t)tbytes);
+ fp->stream.next_in += tbytes;
+ fp->stream.avail_in -= (size_t)tbytes;
}
- else
- {
- tcrc = (((((trailer[3] << 8) | trailer[2]) << 8) | trailer[1]) << 8) |
- trailer[0];
- if (tcrc != fp->crc)
+ if (tbytes < (ssize_t)sizeof(trailer))
+ {
+ if (read(fp->fd, trailer + tbytes, sizeof(trailer) - (size_t)tbytes) < ((ssize_t)sizeof(trailer) - tbytes))
{
/*
- * Bad CRC, mark end-of-file...
+ * Can't get it, so mark end-of-file...
*/
- DEBUG_printf(("9cups_fill: tcrc=%08x, fp->crc=%08x",
- (unsigned int)tcrc, (unsigned int)fp->crc));
+ DEBUG_puts("9cups_fill: Unable to read gzip CRC trailer, returning -1.");
fp->eof = 1;
+ errno = EIO;
return (-1);
}
+ }
+
+ tcrc = ((((((uLong)trailer[3] << 8) | (uLong)trailer[2]) << 8) |
+ (uLong)trailer[1]) << 8) | (uLong)trailer[0];
+ if (tcrc != fp->crc)
+ {
/*
- * Otherwise, reset the compressed flag so that we re-read the
- * file header...
+ * Bad CRC, mark end-of-file...
*/
- fp->compressed = 0;
+ DEBUG_printf(("9cups_fill: tcrc=%08x != fp->crc=%08x, returning -1.", (unsigned int)tcrc, (unsigned int)fp->crc));
+
+ fp->eof = 1;
+ errno = EIO;
+
+ return (-1);
}
+
+ /*
+ * Otherwise, reset the compressed flag so that we re-read the
+ * file header...
+ */
+
+ inflateEnd(&fp->stream);
+
+ fp->compressed = 0;
}
+ else if (status < Z_OK)
+ {
+ DEBUG_printf(("9cups_fill: inflate returned %d, returning -1.", status));
- bytes = sizeof(fp->buf) - fp->stream.avail_out;
+ fp->eof = 1;
+ errno = EIO;
+
+ return (-1);
+ }
+
+ bytes = (ssize_t)sizeof(fp->buf) - (ssize_t)fp->stream.avail_out;
/*
* Return the decompressed data...
fp->end = fp->buf + bytes;
if (bytes)
+ {
+ DEBUG_printf(("9cups_fill: Returning %d.", (int)bytes));
return (bytes);
+ }
}
}
#endif /* HAVE_LIBZ */
fp->eof = 1;
fp->ptr = fp->buf;
fp->end = fp->buf;
-
- return (-1);
}
+ else
+ {
+ /*
+ * Return the bytes we read...
+ */
- /*
- * Return the bytes we read...
- */
+ fp->eof = 0;
+ fp->ptr = fp->buf;
+ fp->end = fp->buf + bytes;
+ }
- fp->eof = 0;
- fp->ptr = fp->buf;
- fp->end = fp->buf + bytes;
+ DEBUG_printf(("9cups_fill: Not gzip, returning %d.", (int)bytes));
return (bytes);
}
{
int fd; /* File descriptor */
struct stat fileinfo; /* File information */
-#ifndef WIN32
+#ifndef _WIN32
struct stat linkinfo; /* Link information */
-#endif /* !WIN32 */
+#endif /* !_WIN32 */
/*
return (-1);
}
-#ifdef WIN32
+#ifdef _WIN32
if (fileinfo.st_mode & _S_IFDIR)
#else
if (S_ISDIR(fileinfo.st_mode))
-#endif /* WIN32 */
+#endif /* _WIN32 */
{
close(fd);
errno = EISDIR;
return (-1);
}
-#ifndef WIN32
+#ifndef _WIN32
/*
* Then use lstat to determine whether the filename is a symlink...
*/
errno = EPERM;
return (-1);
}
-#endif /* !WIN32 */
+#endif /* !_WIN32 */
return (fd);
}
ssize_t total; /* Total bytes read */
- DEBUG_printf(("7cups_read(fp=%p, buf=%p, bytes=" CUPS_LLFMT ")", fp, buf,
- CUPS_LLCAST bytes));
+ DEBUG_printf(("7cups_read(fp=%p, buf=%p, bytes=" CUPS_LLFMT ")", (void *)fp, (void *)buf, CUPS_LLCAST bytes));
/*
* Loop until we read at least 0 bytes...
for (;;)
{
-#ifdef WIN32
+#ifdef _WIN32
if (fp->mode == 's')
total = (ssize_t)recv(fp->fd, buf, (unsigned)bytes, 0);
else
total = recv(fp->fd, buf, bytes, 0);
else
total = read(fp->fd, buf, bytes);
-#endif /* WIN32 */
+#endif /* _WIN32 */
DEBUG_printf(("9cups_read: total=" CUPS_LLFMT, CUPS_LLCAST total));
ssize_t count; /* Count this time */
- DEBUG_printf(("7cups_write(fp=%p, buf=%p, bytes=" CUPS_LLFMT ")", fp, buf,
- CUPS_LLCAST bytes));
+ DEBUG_printf(("7cups_write(fp=%p, buf=%p, bytes=" CUPS_LLFMT ")", (void *)fp, (void *)buf, CUPS_LLCAST bytes));
/*
* Loop until all bytes are written...
total = 0;
while (bytes > 0)
{
-#ifdef WIN32
+#ifdef _WIN32
if (fp->mode == 's')
count = (ssize_t)send(fp->fd, buf, (unsigned)bytes, 0);
else
count = send(fp->fd, buf, bytes, 0);
else
count = write(fp->fd, buf, bytes);
-#endif /* WIN32 */
+#endif /* _WIN32 */
DEBUG_printf(("9cups_write: count=" CUPS_LLFMT, CUPS_LLCAST count));
* Update the counts for the last write call...
*/
- bytes -= count;
- total += count;
+ bytes -= (size_t)count;
+ total += (size_t)count;
buf += count;
}
return ((ssize_t)total);
}
-
-
-/*
- * End of "$Id: file.c 7672 2008-06-18 22:03:02Z mike $".
- */
projects / thirdparty / cups.git / blobdiff