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Diffstat (limited to 'contrib/sendmail/include/sm/io.h')
| -rw-r--r-- | contrib/sendmail/include/sm/io.h | 378 |
1 files changed, 0 insertions, 378 deletions
diff --git a/contrib/sendmail/include/sm/io.h b/contrib/sendmail/include/sm/io.h deleted file mode 100644 index 48b358df21a5..000000000000 --- a/contrib/sendmail/include/sm/io.h +++ /dev/null @@ -1,378 +0,0 @@ -/* - * Copyright (c) 2000-2002 Sendmail, Inc. and its suppliers. - * All rights reserved. - * Copyright (c) 1990 - * The Regents of the University of California. All rights reserved. - * - * This code is derived from software contributed to Berkeley by - * Chris Torek. - * - * By using this file, you agree to the terms and conditions set - * forth in the LICENSE file which can be found at the top level of - * the sendmail distribution. - * - * $Id: io.h,v 1.23 2002/02/23 19:32:17 gshapiro Exp $ - */ - -/*- - * @(#)stdio.h 5.17 (Berkeley) 6/3/91 - */ - -#ifndef SM_IO_H -#define SM_IO_H - -#include <stdio.h> -#include <sm/gen.h> -#include <sm/varargs.h> - -/* mode for sm io (exposed) */ -#define SM_IO_RDWR 1 /* read-write */ -#define SM_IO_RDONLY 2 /* read-only */ -#define SM_IO_WRONLY 3 /* write-only */ -#define SM_IO_APPEND 4 /* write-only from eof */ -#define SM_IO_APPENDRW 5 /* read-write from eof */ -#define SM_IO_RDWRTR 6 /* read-write with truncation indicated */ - -/* for sm_io_fseek, et al api's (exposed) */ -#define SM_IO_SEEK_SET 0 -#define SM_IO_SEEK_CUR 1 -#define SM_IO_SEEK_END 2 - -/* flags for info what's with different types (exposed) */ -#define SM_IO_WHAT_MODE 1 -#define SM_IO_WHAT_VECTORS 2 -#define SM_IO_WHAT_FD 3 -#define SM_IO_WHAT_TYPE 4 -#define SM_IO_WHAT_ISTYPE 5 -#define SM_IO_IS_READABLE 6 -#define SM_IO_WHAT_TIMEOUT 7 -#define SM_IO_WHAT_SIZE 8 - -/* info flags (exposed) */ -#define SM_IO_FTYPE_CREATE 1 -#define SM_IO_FTYPE_MODIFY 2 -#define SM_IO_FTYPE_DELETE 3 - -#define SM_IO_SL_PRIO 1 - -#define SM_IO_OPEN_MAX 20 - -/* for internal buffers */ -struct smbuf -{ - unsigned char *smb_base; - int smb_size; -}; - -/* -** sm I/O state variables (internal only). -** -** The following always hold: -** -** if (flags&(SMLBF|SMWR)) == (SMLBF|SMWR), -** lbfsize is -bf.size, else lbfsize is 0 -** if flags&SMRD, w is 0 -** if flags&SMWR, r is 0 -** -** This ensures that the getc and putc macros (or inline functions) never -** try to write or read from a file that is in `read' or `write' mode. -** (Moreover, they can, and do, automatically switch from read mode to -** write mode, and back, on "r+" and "w+" files.) -** -** lbfsize is used only to make the inline line-buffered output stream -** code as compact as possible. -** -** ub, up, and ur are used when ungetc() pushes back more characters -** than fit in the current bf, or when ungetc() pushes back a character -** that does not match the previous one in bf. When this happens, -** ub.base becomes non-nil (i.e., a stream has ungetc() data iff -** ub.base!=NULL) and up and ur save the current values of p and r. -*/ - -typedef struct sm_file SM_FILE_T; - -struct sm_file -{ - const char *sm_magic; /* This SM_FILE_T is free when NULL */ - unsigned char *f_p; /* current position in (some) buffer */ - int f_r; /* read space left for getc() */ - int f_w; /* write space left for putc() */ - long f_flags; /* flags, below */ - short f_file; /* fileno, if Unix fd, else -1 */ - struct smbuf f_bf; /* the buffer (>= 1 byte, if !NULL) */ - int f_lbfsize; /* 0 or -bf.size, for inline putc */ - - /* These can be used for any purpose by a file type implementation: */ - void *f_cookie; - int f_ival; - - /* operations */ - int (*f_close) __P((SM_FILE_T *)); - ssize_t (*f_read) __P((SM_FILE_T *, char *, size_t)); - off_t (*f_seek) __P((SM_FILE_T *, off_t, int)); - ssize_t (*f_write) __P((SM_FILE_T *, const char *, size_t)); - int (*f_open) __P((SM_FILE_T *, const void *, int, - const void *)); - int (*f_setinfo) __P((SM_FILE_T *, int , void *)); - int (*f_getinfo) __P((SM_FILE_T *, int , void *)); - int f_timeout; - int f_timeoutstate; /* either blocking or non-blocking */ - char *f_type; /* for by-type lookups */ - struct sm_file *f_flushfp; /* flush this before reading parent */ - struct sm_file *f_modefp; /* sync mode with this fp */ - - /* separate buffer for long sequences of ungetc() */ - struct smbuf f_ub; /* ungetc buffer */ - unsigned char *f_up; /* saved f_p when f_p is doing ungetc */ - int f_ur; /* saved f_r when f_r is counting ungetc */ - - /* tricks to meet minimum requirements even when malloc() fails */ - unsigned char f_ubuf[3]; /* guarantee an ungetc() buffer */ - unsigned char f_nbuf[1]; /* guarantee a getc() buffer */ - - /* Unix stdio files get aligned to block boundaries on fseek() */ - int f_blksize; /* stat.st_blksize (may be != bf.size) */ - off_t f_lseekoff; /* current lseek offset */ - int f_dup_cnt; /* count file dup'd */ -}; - -__BEGIN_DECLS -extern SM_FILE_T SmIoF[]; -extern const char SmFileMagic[]; -extern SM_FILE_T SmFtStdio_def; -extern SM_FILE_T SmFtStdiofd_def; -extern SM_FILE_T SmFtString_def; -extern SM_FILE_T SmFtSyslog_def; -extern SM_FILE_T SmFtRealStdio_def; - -#define SMIOIN_FILENO 0 -#define SMIOOUT_FILENO 1 -#define SMIOERR_FILENO 2 -#define SMIOSTDIN_FILENO 3 -#define SMIOSTDOUT_FILENO 4 -#define SMIOSTDERR_FILENO 5 - -/* Common predefined and already (usually) open files (exposed) */ -#define smioin (&SmIoF[SMIOIN_FILENO]) -#define smioout (&SmIoF[SMIOOUT_FILENO]) -#define smioerr (&SmIoF[SMIOERR_FILENO]) -#define smiostdin (&SmIoF[SMIOSTDIN_FILENO]) -#define smiostdout (&SmIoF[SMIOSTDOUT_FILENO]) -#define smiostderr (&SmIoF[SMIOSTDERR_FILENO]) - -#define SmFtStdio (&SmFtStdio_def) -#define SmFtStdiofd (&SmFtStdiofd_def) -#define SmFtString (&SmFtString_def) -#define SmFtSyslog (&SmFtSyslog_def) -#define SmFtRealStdio (&SmFtRealStdio_def) - -#ifdef __STDC__ -# define SM_IO_SET_TYPE(f, name, open, close, read, write, seek, get, set, timeout) \ - (f) = {SmFileMagic, (unsigned char *) 0, 0, 0, 0L, -1, {0}, 0, (void *) 0,\ - 0, (close), (read), (seek), (write), (open), (set), (get), (timeout),\ - 0, (name)} -# define SM_IO_INIT_TYPE(f, name, open, close, read, write, seek, get, set, timeout) - -#else /* __STDC__ */ -# define SM_IO_SET_TYPE(f, name, open, close, read, write, seek, get, set, timeout) (f) -# define SM_IO_INIT_TYPE(f, name, open, close, read, write, seek, get, set, timeout) \ - (f).sm_magic = SmFileMagic; \ - (f).f_p = (unsigned char *) 0; \ - (f).f_r = 0; \ - (f).f_w = 0; \ - (f).f_flags = 0L; \ - (f).f_file = 0; \ - (f).f_bf.smb_base = (unsigned char *) 0; \ - (f).f_bf.smb_size = 0; \ - (f).f_lbfsize = 0; \ - (f).f_cookie = (void *) 0; \ - (f).f_ival = 0; \ - (f).f_close = (close); \ - (f).f_read = (read); \ - (f).f_seek = (seek); \ - (f).f_write = (write); \ - (f).f_open = (open); \ - (f).f_setinfo = (set); \ - (f).f_getinfo = (get); \ - (f).f_timeout = (timeout); \ - (f).f_timeoutstate = 0; \ - (f).f_type = (name); - -#endif /* __STDC__ */ - -__END_DECLS - -/* Internal flags */ -#define SMFBF 0x000001 /* XXXX fully buffered */ -#define SMLBF 0x000002 /* line buffered */ -#define SMNBF 0x000004 /* unbuffered */ -#define SMNOW 0x000008 /* Flush each write; take read now */ -#define SMRD 0x000010 /* OK to read */ -#define SMWR 0x000020 /* OK to write */ - /* RD and WR are never simultaneously asserted */ -#define SMRW 0x000040 /* open for reading & writing */ -#define SMFEOF 0x000080 /* found EOF */ -#define SMERR 0x000100 /* found error */ -#define SMMBF 0x000200 /* buf is from malloc */ -#define SMAPP 0x000400 /* fdopen()ed in append mode */ -#define SMSTR 0x000800 /* this is an snprintf string */ -#define SMOPT 0x001000 /* do fseek() optimisation */ -#define SMNPT 0x002000 /* do not do fseek() optimisation */ -#define SMOFF 0x004000 /* set iff offset is in fact correct */ -#define SMALC 0x010000 /* allocate string space dynamically */ - -#define SMMODEMASK 0x0070 /* read/write mode */ - -/* defines for timeout constants */ -#define SM_TIME_IMMEDIATE (0) -#define SM_TIME_FOREVER (-1) -#define SM_TIME_DEFAULT (-2) - -/* timeout state for blocking */ -#define SM_TIME_BLOCK (0) /* XXX just bool? */ -#define SM_TIME_NONBLOCK (1) - -/* Exposed buffering type flags */ -#define SM_IO_FBF 0 /* setvbuf should set fully buffered */ -#define SM_IO_LBF 1 /* setvbuf should set line buffered */ -#define SM_IO_NBF 2 /* setvbuf should set unbuffered */ - -/* setvbuf buffered, but through at lower file type layers */ -#define SM_IO_NOW 3 - -/* -** size of buffer used by setbuf. -** If underlying filesystem blocksize is discoverable that is used instead -*/ - -#define SM_IO_BUFSIZ 4096 - -#define SM_IO_EOF (-1) - -/* Functions defined in ANSI C standard. */ -__BEGIN_DECLS -SM_FILE_T *sm_io_autoflush __P((SM_FILE_T *, SM_FILE_T *)); -void sm_io_automode __P((SM_FILE_T *, SM_FILE_T *)); -void sm_io_clearerr __P((SM_FILE_T *)); -int sm_io_close __P((SM_FILE_T *, int SM_NONVOLATILE)); -SM_FILE_T *sm_io_dup __P((SM_FILE_T *)); -int sm_io_eof __P((SM_FILE_T *)); -int sm_io_error __P((SM_FILE_T *)); -char *sm_io_fgets __P((SM_FILE_T *, int, char *, int)); -int sm_io_flush __P((SM_FILE_T *, int SM_NONVOLATILE)); - -int PRINTFLIKE(3, 4) -sm_io_fprintf __P((SM_FILE_T *, int, const char *, ...)); - -int sm_io_fputs __P((SM_FILE_T *, int, const char *)); - -int SCANFLIKE(3, 4) -sm_io_fscanf __P((SM_FILE_T *, int, const char *, ...)); - -int sm_io_getc __P((SM_FILE_T *, int)); -int sm_io_getinfo __P((SM_FILE_T *, int, void *)); -SM_FILE_T *sm_io_open __P((const SM_FILE_T *, int SM_NONVOLATILE, const void *, - int, const void *)); -int sm_io_purge __P((SM_FILE_T *)); -int sm_io_putc __P((SM_FILE_T *, int, int)); -size_t sm_io_read __P((SM_FILE_T *, int, void *, size_t)); -SM_FILE_T *sm_io_reopen __P((const SM_FILE_T *, int SM_NONVOLATILE, - const void *, int, const void *, SM_FILE_T *)); -void sm_io_rewind __P((SM_FILE_T *, int)); -int sm_io_seek __P((SM_FILE_T *, int SM_NONVOLATILE, long SM_NONVOLATILE, - int SM_NONVOLATILE)); -int sm_io_setinfo __P((SM_FILE_T *, int, void *)); -int sm_io_setvbuf __P((SM_FILE_T *, int, char *, int, size_t)); - -int SCANFLIKE(2, 3) -sm_io_sscanf __P((const char *, char const *, ...)); - -long sm_io_tell __P((SM_FILE_T *, int SM_NONVOLATILE)); -int sm_io_ungetc __P((SM_FILE_T *, int, int)); -int sm_io_vfprintf __P((SM_FILE_T *, int, const char *, va_list)); -size_t sm_io_write __P((SM_FILE_T *, int, const void *, size_t)); - -void sm_strio_init __P((SM_FILE_T *, char *, size_t)); - -extern SM_FILE_T * -sm_io_fopen __P(( - char *_pathname, - int _flags, - ...)); - -extern SM_FILE_T * -sm_io_stdioopen __P(( - FILE *_stream, - char *_mode)); - -extern int -sm_vasprintf __P(( - char **_str, - const char *_fmt, - va_list _ap)); - -extern int -sm_vsnprintf __P(( - char *, - size_t, - const char *, - va_list)); - -extern void -sm_perror __P(( - const char *)); - -__END_DECLS - -/* -** Functions internal to the implementation. -*/ - -__BEGIN_DECLS -int sm_rget __P((SM_FILE_T *, int)); -int sm_vfscanf __P((SM_FILE_T *, int SM_NONVOLATILE, const char *, - va_list SM_NONVOLATILE)); -int sm_wbuf __P((SM_FILE_T *, int, int)); -__END_DECLS - -/* -** The macros are here so that we can -** define function versions in the library. -*/ - -#define sm_getc(f, t) \ - (--(f)->f_r < 0 ? \ - sm_rget(f, t) : \ - (int)(*(f)->f_p++)) - -/* -** This has been tuned to generate reasonable code on the vax using pcc. -** (It also generates reasonable x86 code using gcc.) -*/ - -#define sm_putc(f, t, c) \ - (--(f)->f_w < 0 ? \ - (f)->f_w >= (f)->f_lbfsize ? \ - (*(f)->f_p = (c)), *(f)->f_p != '\n' ? \ - (int)*(f)->f_p++ : \ - sm_wbuf(f, t, '\n') : \ - sm_wbuf(f, t, (int)(c)) : \ - (*(f)->f_p = (c), (int)*(f)->f_p++)) - -#define sm_eof(p) (((p)->f_flags & SMFEOF) != 0) -#define sm_error(p) (((p)->f_flags & SMERR) != 0) -#define sm_clearerr(p) ((void)((p)->f_flags &= ~(SMERR|SMFEOF))) - -#define sm_io_eof(p) sm_eof(p) -#define sm_io_error(p) sm_error(p) - -#define sm_io_clearerr(p) sm_clearerr(p) - -#ifndef lint -# ifndef _POSIX_SOURCE -# define sm_io_getc(fp, t) sm_getc(fp, t) -# define sm_io_putc(fp, t, x) sm_putc(fp, t, x) -# endif /* _POSIX_SOURCE */ -#endif /* lint */ - -#endif /* SM_IO_H */ |