NetBSD/usr.bin/ftp/progressbar.h
lukem 920389c199 ftp: don't use restartable signals
Refactor to not rely upon restartable signals (SA_RESTART),
possibly fixing intermittent failures with -q QUITTIME.

ftp transfers: handle EINTR/EAGAIN in copy_bytes(),
instead of relying upon restartable signals.

http/https transfers: Explicitly print an error similar to
progressmeter() when timing-out for -Q QUITTIME in fetch_wait(),
and set errno to ETIMEDOUT so that the warn() in fetch_url()
prints a more accurate error message.

PR/55857
2021-01-06 04:43:14 +00:00

92 lines
3.1 KiB
C

/* $NetBSD: progressbar.h,v 1.9 2021/01/06 04:43:14 lukem Exp $ */
/*-
* Copyright (c) 1996-2021 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Luke Mewburn.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef STANDALONE_PROGRESS
#include <setjmp.h>
#endif /* !STANDALONE_PROGRESS */
#ifndef GLOBAL
#define GLOBAL extern
#endif
#define STALLTIME 5 /* # of seconds of no xfer before "stalling" */
typedef void (*sigfunc)(int);
GLOBAL FILE *ttyout; /* stdout, or stderr if retrieving to stdout */
GLOBAL int progress; /* display transfer progress bar */
GLOBAL int ttywidth; /* width of tty */
GLOBAL off_t bytes; /* current # of bytes read */
GLOBAL off_t filesize; /* size of file being transferred */
GLOBAL off_t restart_point; /* offset to restart transfer */
GLOBAL char *prefix; /* Text written left of progress bar */
#ifndef STANDALONE_PROGRESS
GLOBAL int fromatty; /* input is from a terminal */
GLOBAL int verbose; /* print messages coming back from server */
GLOBAL int quit_time; /* maximum time to wait if stalled */
GLOBAL const char *direction; /* direction transfer is occurring */
GLOBAL sigjmp_buf toplevel; /* non-local goto stuff for cmd scanner */
#endif /* !STANDALONE_PROGRESS */
int foregroundproc(void);
void alarmtimer(int);
void progressmeter(int);
sigfunc xsignal(int, sigfunc);
#ifndef STANDALONE_PROGRESS
void psummary(int);
void ptransfer(int);
#endif /* !STANDALONE_PROGRESS */
#ifdef NO_LONG_LONG
# define LLF "%ld"
# define LLFP(x) "%" x "ld"
# define LLT long
# define ULLF "%lu"
# define ULLFP(x) "%" x "lu"
# define ULLT unsigned long
#else
# define LLF "%lld"
# define LLFP(x) "%" x "lld"
# define LLT long long
# define ULLF "%llu"
# define ULLFP(x) "%" x "llu"
# define ULLT unsigned long long
#endif