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-rw-r--r--contrib/sendmail/libsm/stdio.c508
1 files changed, 0 insertions, 508 deletions
diff --git a/contrib/sendmail/libsm/stdio.c b/contrib/sendmail/libsm/stdio.c
deleted file mode 100644
index d45a774bcf63..000000000000
--- a/contrib/sendmail/libsm/stdio.c
+++ /dev/null
@@ -1,508 +0,0 @@
-/*
- * Copyright (c) 2000-2003 Sendmail, Inc. and its suppliers.
- * All rights reserved.
- * Copyright (c) 1990, 1993
- * 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.
- */
-
-#include <sm/gen.h>
-SM_RCSID("@(#)$Id: stdio.c,v 1.56.2.10 2003/01/10 23:07:17 ca Exp $")
-#include <unistd.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <string.h> /* FreeBSD: FD_ZERO needs <string.h> */
-#include <sys/stat.h>
-#include <sys/time.h>
-#include <sm/heap.h>
-#include <sm/assert.h>
-#include <sm/varargs.h>
-#include <sm/io.h>
-#include <sm/setjmp.h>
-#include <sm/conf.h>
-#include <sm/fdset.h>
-#include "local.h"
-
-/*
-** Overall:
-** Small standard I/O/seek/close functions.
-** These maintain the `known seek offset' for seek optimization.
-*/
-
-/*
-** SM_STDOPEN -- open a file with stdio behavior
-**
-** Not associated with the system's stdio in libc.
-**
-** Parameters:
-** fp -- file pointer to be associated with the open
-** info -- pathname of the file to be opened
-** flags -- indicates type of access methods
-** rpool -- ignored
-**
-** Returns:
-** Failure: -1 and set errno
-** Success: 0 or greater (fd of file from open(2)).
-**
-*/
-
-/* ARGSUSED3 */
-int
-sm_stdopen(fp, info, flags, rpool)
- SM_FILE_T *fp;
- const void *info;
- int flags;
- const void *rpool;
-{
- char *path = (char *) info;
- int oflags;
-
- switch (flags)
- {
- case SM_IO_RDWR:
- oflags = O_RDWR;
- break;
- case SM_IO_RDWRTR:
- oflags = O_RDWR | O_CREAT | O_TRUNC;
- break;
- case SM_IO_RDONLY:
- oflags = O_RDONLY;
- break;
- case SM_IO_WRONLY:
- oflags = O_WRONLY | O_CREAT | O_TRUNC;
- break;
- case SM_IO_APPEND:
- oflags = O_APPEND | O_WRONLY | O_CREAT;
- break;
- case SM_IO_APPENDRW:
- oflags = O_APPEND | O_RDWR | O_CREAT;
- break;
- default:
- errno = EINVAL;
- return -1;
- }
- fp->f_file = open(path, oflags,
- S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH);
- if (fp->f_file < 0)
- return -1; /* errno set by open() */
-
- if (oflags & O_APPEND)
- (void) (*fp->f_seek)((void *)fp, (off_t)0, SEEK_END);
-
- return fp->f_file;
-}
-
-/*
-** SM_STDREAD -- read from the file
-**
-** Parameters:
-** fp -- file pointer to read from
-** buf -- location to place read data
-** n -- number of bytes to read
-**
-** Returns:
-** Failure: -1 and sets errno
-** Success: number of bytes read
-**
-** Side Effects:
-** Updates internal offset into file.
-*/
-
-ssize_t
-sm_stdread(fp, buf, n)
- SM_FILE_T *fp;
- char *buf;
- size_t n;
-{
- register int ret;
-
- ret = read(fp->f_file, buf, n);
-
- /* if the read succeeded, update the current offset */
- if (ret > 0)
- fp->f_lseekoff += ret;
- return ret;
-}
-
-/*
-** SM_STDWRITE -- write to the file
-**
-** Parameters:
-** fp -- file pointer ro write to
-** buf -- location of data to be written
-** n - number of bytes to write
-**
-** Returns:
-** Failure: -1 and sets errno
-** Success: number of bytes written
-*/
-
-ssize_t
-sm_stdwrite(fp, buf, n)
- SM_FILE_T *fp;
- char const *buf;
- size_t n;
-{
- return write(fp->f_file, buf, n);
-}
-
-/*
-** SM_STDSEEK -- set the file offset position
-**
-** Parmeters:
-** fp -- file pointer to position
-** offset -- how far to position from "base" (set by 'whence')
-** whence -- indicates where the "base" of the 'offset' to start
-**
-** Results:
-** Failure: -1 and sets errno
-** Success: the current offset
-**
-** Side Effects:
-** Updates the internal value of the offset.
-*/
-
-off_t
-sm_stdseek(fp, offset, whence)
- SM_FILE_T *fp;
- off_t offset;
- int whence;
-{
- register off_t ret;
-
- ret = lseek(fp->f_file, (off_t) offset, whence);
- if (ret != (off_t) -1)
- fp->f_lseekoff = ret;
- return ret;
-}
-
-/*
-** SM_STDCLOSE -- close the file
-**
-** Parameters:
-** fp -- the file pointer to close
-**
-** Returns:
-** Success: 0 (zero)
-** Failure: -1 and sets errno
-*/
-
-int
-sm_stdclose(fp)
- SM_FILE_T *fp;
-{
- return close(fp->f_file);
-}
-
-/*
-** SM_STDSETMODE -- set the access mode for the file
-**
-** Called by sm_stdsetinfo().
-**
-** Parameters:
-** fp -- file pointer
-** mode -- new mode to set the file access to
-**
-** Results:
-** Success: 0 (zero);
-** Failure: -1 and sets errno
-*/
-
-int
-sm_stdsetmode(fp, mode)
- SM_FILE_T *fp;
- const int *mode;
-{
- int flags = 0;
-
- switch (*mode)
- {
- case SM_IO_RDWR:
- flags |= SMRW;
- break;
- case SM_IO_RDONLY:
- flags |= SMRD;
- break;
- case SM_IO_WRONLY:
- flags |= SMWR;
- break;
- case SM_IO_APPEND:
- default:
- errno = EINVAL;
- return -1;
- }
- fp->f_flags = fp->f_flags & ~SMMODEMASK;
- fp->f_flags |= flags;
- return 0;
-}
-
-/*
-** SM_STDGETMODE -- for getinfo determine open mode
-**
-** Called by sm_stdgetinfo().
-**
-** Parameters:
-** fp -- the file mode being determined
-** mode -- internal mode to map to external value
-**
-** Results:
-** Failure: -1 and sets errno
-** Success: external mode value
-*/
-
-int
-sm_stdgetmode(fp, mode)
- SM_FILE_T *fp;
- int *mode;
-{
- switch (fp->f_flags & SMMODEMASK)
- {
- case SMRW:
- *mode = SM_IO_RDWR;
- break;
- case SMRD:
- *mode = SM_IO_RDONLY;
- break;
- case SMWR:
- *mode = SM_IO_WRONLY;
- break;
- default:
- errno = EINVAL;
- return -1;
- }
- return 0;
-}
-
-/*
-** SM_STDSETINFO -- set/modify information for a file
-**
-** Parameters:
-** fp -- file to set info for
-** what -- type of info to set
-** valp -- location of data used for setting
-**
-** Returns:
-** Failure: -1 and sets errno
-** Success: >=0
-*/
-
-int
-sm_stdsetinfo(fp, what, valp)
- SM_FILE_T *fp;
- int what;
- void *valp;
-{
- switch (what)
- {
- case SM_IO_WHAT_MODE:
- return sm_stdsetmode(fp, (const int *)valp);
-
- default:
- errno = EINVAL;
- return -1;
- }
-}
-
-/*
-** SM_GETINFO -- get information about the open file
-**
-** Parameters:
-** fp -- file to get info for
-** what -- type of info to get
-** valp -- location to place found info
-**
-** Returns:
-** Success: may or may not place info in 'valp' depending
-** on 'what' value, and returns values >=0. Return
-** value may be the obtained info
-** Failure: -1 and sets errno
-*/
-
-int
-sm_stdgetinfo(fp, what, valp)
- SM_FILE_T *fp;
- int what;
- void *valp;
-{
- switch (what)
- {
- case SM_IO_WHAT_MODE:
- return sm_stdgetmode(fp, (int *)valp);
-
- case SM_IO_WHAT_FD:
- return fp->f_file;
-
- case SM_IO_WHAT_SIZE:
- {
- struct stat st;
-
- if (fstat(fp->f_file, &st) == 0)
- return st.st_size;
- else
- return -1;
- }
-
- case SM_IO_IS_READABLE:
- {
- fd_set readfds;
- struct timeval timeout;
-
- if (SM_FD_SETSIZE > 0 && fp->f_file >= SM_FD_SETSIZE)
- {
- errno = EINVAL;
- return -1;
- }
- FD_ZERO(&readfds);
- SM_FD_SET(fp->f_file, &readfds);
- timeout.tv_sec = 0;
- timeout.tv_usec = 0;
- if (select(fp->f_file + 1, FDSET_CAST &readfds,
- NULL, NULL, &timeout) > 0 &&
- SM_FD_ISSET(fp->f_file, &readfds))
- return 1;
- return 0;
- }
-
- default:
- errno = EINVAL;
- return -1;
- }
-}
-
-/*
-** SM_STDFDOPEN -- open file by primitive 'fd' rather than pathname
-**
-** I/O function to handle fdopen() stdio equivalence. The rest of
-** the functions are the same as the sm_stdopen() above.
-**
-** Parameters:
-** fp -- the file pointer to be associated with the open
-** name -- the primitive file descriptor for association
-** flags -- indicates type of access methods
-** rpool -- ignored
-**
-** Results:
-** Success: primitive file descriptor value
-** Failure: -1 and sets errno
-*/
-
-/* ARGSUSED3 */
-int
-sm_stdfdopen(fp, info, flags, rpool)
- SM_FILE_T *fp;
- const void *info;
- int flags;
- const void *rpool;
-{
- int oflags, tmp, fdflags, fd = *((int *) info);
-
- switch (flags)
- {
- case SM_IO_RDWR:
- oflags = O_RDWR | O_CREAT;
- break;
- case SM_IO_RDONLY:
- oflags = O_RDONLY;
- break;
- case SM_IO_WRONLY:
- oflags = O_WRONLY | O_CREAT | O_TRUNC;
- break;
- case SM_IO_APPEND:
- oflags = O_APPEND | O_WRONLY | O_CREAT;
- break;
- case SM_IO_APPENDRW:
- oflags = O_APPEND | O_RDWR | O_CREAT;
- break;
- default:
- errno = EINVAL;
- return -1;
- }
-
- /* Make sure the mode the user wants is a subset of the actual mode. */
- if ((fdflags = fcntl(fd, F_GETFL, 0)) < 0)
- return -1;
- tmp = fdflags & O_ACCMODE;
- if (tmp != O_RDWR && (tmp != (oflags & O_ACCMODE)))
- {
- errno = EINVAL;
- return -1;
- }
- fp->f_file = fd;
- if (oflags & O_APPEND)
- (void) (*fp->f_seek)(fp, (off_t)0, SEEK_END);
- return fp->f_file;
-}
-
-/*
-** SM_IO_FOPEN -- open a file
-**
-** Same interface and semantics as the open() system call,
-** except that it returns SM_FILE_T* instead of a file descriptor.
-**
-** Parameters:
-** pathname -- path of file to open
-** flags -- flags controlling the open
-** ... -- option "mode" for opening the file
-**
-** Returns:
-** Raises an exception on heap exhaustion.
-** Returns NULL and sets errno if open() fails.
-** Returns an SM_FILE_T pointer on success.
-*/
-
-SM_FILE_T *
-#if SM_VA_STD
-sm_io_fopen(char *pathname, int flags, ...)
-#else /* SM_VA_STD */
-sm_io_fopen(pathname, flags, va_alist)
- char *pathname;
- int flags;
- va_dcl
-#endif /* SM_VA_STD */
-{
- MODE_T mode;
- SM_FILE_T *fp;
- int ioflags;
-
- if (flags & O_CREAT)
- {
- SM_VA_LOCAL_DECL
-
- SM_VA_START(ap, flags);
- mode = (MODE_T) SM_VA_ARG(ap, int);
- SM_VA_END(ap);
- }
- else
- mode = 0;
-
- switch (flags & O_ACCMODE)
- {
- case O_RDONLY:
- ioflags = SMRD;
- break;
- case O_WRONLY:
- ioflags = SMWR;
- break;
- case O_RDWR:
- ioflags = SMRW;
- break;
- default:
- sm_abort("sm_io_fopen: bad flags 0%o", flags);
- }
-
- fp = sm_fp(SmFtStdio, ioflags, NULL);
- fp->f_file = open(pathname, flags, mode);
- if (fp->f_file == -1)
- {
- fp->f_flags = 0;
- fp->sm_magic = NULL;
- return NULL;
- }
- return fp;
-}
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