diff options
| author | Michael R Sweet <michael.r.sweet@gmail.com> | 2018-10-17 11:31:45 -0400 |
|---|---|---|
| committer | Michael R Sweet <michael.r.sweet@gmail.com> | 2018-10-17 11:31:45 -0400 |
| commit | 5a855d856a17c7986e5396c38f8e75616775983a (patch) | |
| tree | 6157dd12679bc856336c0477776876d189302658 /cups/file.c | |
| parent | 104c5283581719f72d18cd5038aaeb21387695d4 (diff) | |
| download | cups-5a855d856a17c7986e5396c38f8e75616775983a.tar.gz | |
Remove dependency on zlib headers outside of libcups.
Diffstat (limited to 'cups/file.c')
| -rw-r--r-- | cups/file.c | 52 |
1 files changed, 49 insertions, 3 deletions
diff --git a/cups/file.c b/cups/file.c index 5356d5ce6..759f6dc5d 100644 --- a/cups/file.c +++ b/cups/file.c @@ -6,10 +6,11 @@ * our own file functions allows us to provide transparent support of * different line endings, gzip'd print files, PPD files, etc. * - * Copyright 2007-2017 by Apple Inc. - * Copyright 1997-2007 by Easy Software Products, all rights reserved. + * Copyright © 2007-2018 by Apple Inc. + * Copyright © 1997-2007 by Easy Software Products, all rights reserved. * - * Licensed under Apache License v2.0. See the file "LICENSE" for more information. + * Licensed under Apache License v2.0. See the file "LICENSE" for more + * information. */ /* @@ -20,6 +21,39 @@ #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... @@ -1258,6 +1292,18 @@ cupsFileOpenFd(int fd, /* I - File descriptor */ /* + * '_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/macOS 10.5@ |