%% options copyright owner = Dirk Krause copyright year = 2015-xxxx license = bsd %% module /** @file dk-blks.c The dk-blks program. the help_text array below shows details. */ #include "dk4conf.h" #include #if DK4_HAVE_STDLIB_H #ifndef STDLIB_H_INCLUDED #include #define STDLIB_H_INCLUDED 1 #endif #endif #if DK4_HAVE_IO_H #ifndef IO_H_INCLUDED #include #define IO_H_INCLUDED 1 #endif #endif #if DK4_HAVE_UNISTD_H #ifndef UNISTD_H_INCLUDED #include #define UNISTD_H_INCLUDED 1 #endif #endif #if DK4_HAVE_PROCESS_H #ifndef PROCESS_H_INCLUDED #include #define PROCESS_H_INCLUDED 1 #endif #endif #if DK4_HAVE_SYS_TYPES_H #ifndef SYS_TYPES_H_INCLUDED #include #define SYS_TYPES_H_INCLUDED 1 #endif #endif #if DK4_HAVE_SIGNAL_H #ifndef SIGNAL_H_INCLUDED #include #define SIGNAL_H_INCLUDED 1 #endif #endif #if DK4_HAVE_ERRNO_H #ifndef ERRNO_H_INCLUDED #include #define ERRNO_H_INCLUDED 1 #endif #endif #if DK4_HAVE_FCNTL_H #ifndef FCNTL_H_INCLUDED #include #define FCNTL_H_INCLUDED 1 #endif #endif #if DK4_HAVE_STRING_H #ifndef STRING_H_INCLUDED #include #define STRING_H_INCLUDED 1 #endif #endif #include "dk4types.h" #include "dk4const.h" #include "dk4vers.h" #include "dk4app.h" #include "dk4aopt.h" #include "dk4mem.h" #include "dk4mema.h" #include "dk4memrs.h" #include "dk4numco.h" #include "dk4fdrde.h" #include "dk4fdwre.h" $!trace-include #ifndef DK_BLKS_DEFAULT_BLOCK_SIZE /** Default suitable for hard disks. */ #define DK_BLKS_DEFAULT_BLOCK_SIZE 4096 #endif /** Default help text, shown if help text file is not found. */ static const dkChar * const help_text[] = { $!text macro=dkT,preprocessor Create sequence of fixed size blocks. dk-blks [] Options: -b Block size, positive integer number. You can append `k', `m', `g', or `t' for multiples of 1024 or powers of it (i.e. 4k = 4096 bytes, 1m = 1048576 bytes...). --help Show this short help text. --manual *** SHOW FULL MANUAL. *** --version Show version information. --license Show license information. http://dktools.sourceforge.net $!end }; /** License conditions. */ static const dkChar * const license_text[] = { $!text macro=dkT,preprocessor This software uses code from the following projects, either directly or as a library: dktools Dirk Krause's tools and libraries. See http://dktools.sourceforge.net/ for more information. #if DK4_HAVE_ZLIB_H zlib Data compression library. See http://www.zlib.net/ for more information. #endif #if DK4_HAVE_BZLIB_H bzip2 Data compression program and library. See http://www.bzip.org/ for more information. #endif All the licenses below apply to the program. Licenses for used libraries are shown as found on my Scientific Linux 6.x computer in the /usr/share/doc directory on 2015-04-01. Check the project homepages of the used libraries for additional information and/or updated license terms. DK tools and libraries license ============================== Copyright (c) 2015-2016, Dirk Krause All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * 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. * Neither the name of the Dirk Krause nor the names of contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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. #if DK4_HAVE_ZLIB_H Zlib license ============ (C) 1995-2004 Jean-loup Gailly and Mark Adler This software is provided 'as-is', without any express or implied warranty. In no event will the authors be held liable for any damages arising from the use of this software. Permission is granted to anyone to use this software for any purpose, including commercial applications, and to alter it and redistribute it freely, subject to the following restrictions: 1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. 2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. 3. This notice may not be removed or altered from any source distribution. Jean-loup Gailly Mark Adler jloup@gzip.org madler@alumni.caltech.edu #endif #if DK4_HAVE_BZLIB_H Bzip2 and libbzip2 library license ================================== This program, "bzip2", the associated library "libbzip2", and all documentation, are copyright (C) 1996-2007 Julian R Seward. All rights reserved. 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. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. 3. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. 4. The name of the author may not be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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. Julian Seward, jseward@bzip.org bzip2/libbzip2 version 1.0.5 of 10 December 2007 #endif $!end }; /** Options used by program. */ static const dk4_option_specification_t options[] = { { dkT('b'), dkT("block-size"), DK4_OPT_ARG_SIZE } }; /** Number of elements in options array. */ static const size_t sz_options = sizeof(options)/sizeof(dk4_option_specification_t); /** Keywords used by the program, not localized. */ static const dkChar * const kwnl[] = { $!string-table macro=dkT # # 0 Program group name # dktools # # 1 Help text file name # dk-blks.txt # # 2 String table file name # dk-blks.str # # 3 4 File names for reporting read and write errors # stdin stdout $!end }; /** Constant texts used by the program, replaced by localized texts if available. */ static const dkChar * const kw_def[] = { $!string-table macro=dkT # # 0 Error message: Not all bytes written # Write operation partially failed! # # 1 Error message: Failed to clean up buffer # Failed to cleanup buffer! # # 2 Error message: Block size too large! # Block size too large! # # 3 Error message: Block size must not be 0! # Block size must not be 0! # # 4 Error message: Failed to set up signal handlers! # Failed to set up signal handlers! # # 5 Error message: Failed to restore signal handlers! # Failed to restore signal handlers! # # 6 Error message: Signal SIGPIPE received! # Signal SIGPIPE received, write operation failed! # # 7 Error message: Signal SIGINT received! # Signal SIGINT received, program aborted! # # 8 9 Error message: Unexpected command line argument ... ignored! # Unexpected command line argument " " ignored! $!end }; /** Message texts, localized texts are used if available. */ static const dkChar * const *dk_blks_msg = kw_def; /** Number of elements in dk_blks_msg array. */ static size_t sz_msg = sizeof(kw_def)/sizeof(DK4_PCDKCHAR) - 1; /** Exit status code. */ static int exval = EXIT_FAILURE; /** Application structure. */ static dk4_app_t *app = NULL; /** Input buffer for buffer sizes up to DK_BLKS_DEFAULT_BLOCK_SIZE. */ static char default_input_buffer[DK_BLKS_DEFAULT_BLOCK_SIZE]; /** Output buffer for buffer sizes up to DK_BLKS_DEFAULT_BLOCK_SIZE. */ static char default_output_buffer[sizeof(default_input_buffer)]; #ifdef RW_MAX #undef RW_MAX #endif #if DK4_ON_WINDOWS /** Maximum number of bytes for read or write operation. */ #define RW_MAX (INT_MAX) #else /** Maximum number of bytes for read or write operation. */ #define RW_MAX ((SIZE_MAX) / 2U) #endif #ifdef SIGPIPE /** Indicator: SIGPIPE signal received. */ static DK4_VOLATILE dk4_sig_atomic_t sig_had_pipe = 0; #endif /** Indicator: SIGINT signal received. */ static DK4_VOLATILE dk4_sig_atomic_t sig_had_int = 0; /** Indicator: SIGTERM signal received. */ static DK4_VOLATILE dk4_sig_atomic_t sig_had_term = 0; static DK4_VOLATILE dk4_sig_atomic_t * sig_pass_pointer(DK4_VOLATILE dk4_sig_atomic_t *ptr) { return ptr; } #ifdef SIGPIPE /** Handler for SIGPIPE signal. @param signo Signal number (always SIGPIPE, ignored). */ static void sig_handler_pipe(int signo) { *sig_pass_pointer(&sig_had_pipe) = 1; } #endif /** Handler for SIGINT signal. @param signo Signal number (always SIGINT, ignored). */ static void sig_handler_int(int signo) { *sig_pass_pointer(&sig_had_int) = 1; } /** Handler for SIGTERM signal. @param signo Signal number (always SIGTERM, ignored). */ static void sig_handler_term(int signo) { *sig_pass_pointer(&sig_had_term) = 1; } /** Read value from volatile atomic type. This function is necessary as some compilers mis-optimize direct access to volatile variables (at least if you believe one of the coding standards). @param ap Pointer to volatile atomic variable. @return Contents of the variable. */ static dk4_sig_atomic_t sig_read_atomic(DK4_VOLATILE dk4_sig_atomic_t *ap) { return (*ap); } /** Check whether we can continue or if a signal was received. @param check_pipe Flag: Check for occured SIGPIPE signal too. @return 1 if the program can continue, 0 if a signal was received. */ static int sig_can_continue(int check_pipe) { int back = 1; #ifdef SIGPIPE if (0 != check_pipe) { if (0 != sig_read_atomic(&sig_had_pipe)) { back = 0; } } #endif if (0 != sig_read_atomic(&sig_had_int )) { back = 0; } if (0 != sig_read_atomic(&sig_had_term)) { back = 0; } return back; } static void dk_blks_transfer(char *ib, char *ob, size_t bs) { int cc = 1; /* Flag: Can continue */ size_t irdb = 0; /* Bytes in input buffer */ size_t iused = 0; /* Input bytes used */ size_t oused = 0; /* Output bytes used */ size_t iavail; /* Input bytes available */ size_t oavail; /* Output bytes available */ size_t bcp; /* Bytes to copy */ #if DK4_ON_WINDOWS int rdres; /* Number of bytes read */ int wrres; /* Number of bytes written */ #else ssize_t rdres; /* Number of bytes read */ ssize_t wrres; /* Number of bytes written */ #endif dk4_sig_atomic_t shp; /* Had pipe */ $? "+ dk_blks_transfer" /* Process input */ exval = EXIT_SUCCESS; do { if (1 == sig_can_continue(0)) { errno = 0; $? ". attempt to read" #if DK4_ON_WINDOWS rdres = _read(0, ib, (unsigned)bs); #else rdres = read(0, ib, bs); #endif if (0 < rdres) { $? ". bytes found %u", (unsigned)rdres irdb = rdres; iused = 0; while(iused < irdb) { /* Find number of bytes we can add to output buffer */ iavail = irdb - iused; oavail = bs - oused; if (iavail < oavail) { bcp = iavail; } else { bcp = oavail; } /* Add bytes to output buffer */ DK4_MEMCPY(&(ob[oused]), &(ib[iused]), bcp); /* Increased number of used bytes for both input and output */ oused += bcp; iused += bcp; /* Flush output buffer when full */ if (oused >= bs) { #ifdef SIGPIPE shp = sig_read_atomic(&sig_had_pipe); #else shp = 0; #endif if (0 == shp) { errno = 0; #if DK4_ON_WINDOWS wrres = _write(1, ob, (unsigned)bs); #else wrres = write(1, ob, bs); #endif if (0 <= wrres) { if (wrres < bs) { /* ERROR: Not all bytes written */ dk4app_log_1(app, dk_blks_msg, sz_msg, DK4_LL_ERROR, 0); exval = EXIT_FAILURE; cc = -1; } } else { /* ERROR Write attempt failed */ dk4fd_write_error_msg(app, kwnl[4], errno); exval = EXIT_FAILURE; cc = -1; } } oused = 0; } } } else { if (0 == rdres) { $? ". end of input" cc = 0; } else { $? ". read error" /* ERROR: Read operation failed */ dk4fd_read_error_msg(app, kwnl[3], errno); cc = 0; exval = EXIT_FAILURE; } } #if DK4_ON_WINDOWS if (_eof(0)) { cc = 0; } #endif } else { cc = -1; } } while (1 == cc); /* Flush output buffer */ if (0 == cc) { if (0 < oused) { #ifdef SIGPIPE shp = sig_read_atomic(&sig_had_pipe); #else shp = 0; #endif if (0 == shp) { errno = 0; #if DK4_ON_WINDOWS wrres = _write(1, ob, (unsigned)oused); #else wrres = write(1, ob, oused); #endif if (0 <= wrres) { if (wrres < oused) { /* ERROR: Not all bytes written */ dk4app_log_1(app, dk_blks_msg, sz_msg, DK4_LL_ERROR, 0); exval = EXIT_FAILURE; } } else { /* ERROR: Write attempt failed */ dk4fd_write_error_msg(app, kwnl[4], errno); exval = EXIT_FAILURE; } } } } /* Finally zero-fill used buffers. */ if (0 == dk4mem_reset_secure(ib, bs, NULL)) { /* ERROR: Secure memory reset failed */ dk4app_log_1(app, dk_blks_msg, sz_msg, DK4_LL_ERROR, 1); exval = EXIT_FAILURE; } if (0 == dk4mem_reset_secure(ob, bs, NULL)) { /* ERROR: Secure memory reset failed */ dk4app_log_1(app, dk_blks_msg, sz_msg, DK4_LL_ERROR, 1); exval = EXIT_FAILURE; } $? "- dk_blks_transfer" } static void dk_blks_with_buffers(char *ib, char *ob, size_t bs) { #if DK4_ON_WINDOWS int oldinmode = 0; int oldoutmode = 0; #endif if ((dk4_um_t)RW_MAX >= (dk4_um_t)bs) { #if DK4_ON_WINDOWS oldinmode = _setmode(0, _O_BINARY); oldoutmode = _setmode(1, _O_BINARY); #endif dk_blks_transfer(ib, ob, bs); #if DK4_ON_WINDOWS _setmode(1, oldoutmode); _setmode(0, oldinmode); #endif } else { /* ERROR: Block size too large */ dk4app_log_1(app, dk_blks_msg, sz_msg, DK4_LL_ERROR, 2); } } /** Run normally. */ static void dk_blks_normal_run(void) { char *myib; char *myob; size_t mybs = DK_BLKS_DEFAULT_BLOCK_SIZE; int res = 0; $? "+ dk_blks_normal_run" if (0 != dk4app_opt_is_set_short(app, dkT('b'), NULL)) { res = dk4app_opt_get_size_short(&mybs, app, dkT('b'), NULL); if (0 == res) { mybs = DK_BLKS_DEFAULT_BLOCK_SIZE; } } if ((0 < mybs) && (mybs <= DK_BLKS_DEFAULT_BLOCK_SIZE)) { dk_blks_with_buffers( default_input_buffer, default_output_buffer, mybs ); } else { if (0 < mybs) { myib = (char *)dk4mem_calloc_app(1, mybs, app); if (NULL != myib) { myob = (char *)dk4mem_calloc_app(1, mybs, app); if (NULL != myob) { dk_blks_with_buffers(myib, myob, mybs); dk4mem_free(myob); } dk4mem_free(myib); } } else { /* ERROR: Illegal block size */ dk4app_log_1(app, dk_blks_msg, sz_msg, DK4_LL_ERROR, 3); } } $? "- dk_blks_normal_run" } #if DK4_HAVE_SIGACTION /** Set signal handlers and run. */ static void run_with_signals(void) { #ifdef SIGPIPE struct sigaction opipe; #endif struct sigaction oint; struct sigaction oterm; #ifdef SIGPIPE struct sigaction npipe; #endif struct sigaction nint; struct sigaction nterm; int success = 0; #ifdef SIGPIPE /* Set up signal handling for SIGPIPE. */ DK4_MEMRES(&npipe, sizeof(npipe)); npipe.sa_handler = sig_handler_pipe; npipe.sa_flags = 0; if (0 != sigemptyset(&npipe.sa_mask)) { /* ERROR: Failed to set up masked signal set for SIGPIPE */ dk4app_log_1(app, dk_blks_msg, sz_msg, DK4_LL_ERROR, 4); goto finished; } if (0 != sigaddset(&npipe.sa_mask, SIGPIPE)) { /* ERROR: Failed to set up masked signal set for SIGPIPE */ dk4app_log_1(app, dk_blks_msg, sz_msg, DK4_LL_ERROR, 4); goto finished; } if (0 != sigaction(SIGPIPE, &npipe, &opipe)) { /* ERROR: Failed to set up signal handler for SIGPIPE */ dk4app_log_1(app, dk_blks_msg, sz_msg, DK4_LL_ERROR, 4); goto finished; } #endif /* Set up signal handling for SIGINT. */ DK4_MEMRES(&nint, sizeof(nint)); nint.sa_handler = sig_handler_int; nint.sa_flags = 0; if (0 != sigemptyset(&nint.sa_mask)) { /* ERROR: Failed to set up masked signal set for SIGINT */ dk4app_log_1(app, dk_blks_msg, sz_msg, DK4_LL_ERROR, 4); goto restore_old_pipe; } if (0 != sigaddset(&nint.sa_mask, SIGINT)) { /* ERROR: Failed to set up masked signal set for SIGINT */ dk4app_log_1(app, dk_blks_msg, sz_msg, DK4_LL_ERROR, 4); goto restore_old_pipe; } if (0 != sigaction(SIGINT, &nint, &oint)) { /* ERROR: Failed to set up signal handler for SIGINT */ dk4app_log_1(app, dk_blks_msg, sz_msg, DK4_LL_ERROR, 4); goto restore_old_pipe; } /* Set up signal handling for SIGTERM */ DK4_MEMRES(&nterm, sizeof(nterm)); nterm.sa_handler = sig_handler_term; nterm.sa_flags = 0; if (0 != sigemptyset(&nterm.sa_mask)) { /* ERROR: Failed to set up masked signal set for SIGTERM */ dk4app_log_1(app, dk_blks_msg, sz_msg, DK4_LL_ERROR, 4); goto restore_old_int; } if (0 != sigaddset(&nterm.sa_mask, SIGTERM)) { /* ERROR: Failed to set up masked signal set for SIGTERM */ dk4app_log_1(app, dk_blks_msg, sz_msg, DK4_LL_ERROR, 4); goto restore_old_int; } if (0 != sigaction(SIGTERM, &nterm, &oterm)) { /* ERROR: Failed to set up signal handler for SIGTERM */ dk4app_log_1(app, dk_blks_msg, sz_msg, DK4_LL_ERROR, 4); goto restore_old_int; } success = 1; dk_blks_normal_run(); /* Restore signal handling for SIGTERM. */ if (0 != sigaction(SIGTERM, &oterm, NULL)) { /* ERROR: Failed to restore old SIGTERM settings */ dk4app_log_1(app, dk_blks_msg, sz_msg, DK4_LL_ERROR, 5); success = 0; } /* Restore signal handling for SIGINT. */ restore_old_int: if (0 != sigaction(SIGINT, &oint, NULL)) { /* ERROR: Failed to restore old SIGPIPE settings */ dk4app_log_1(app, dk_blks_msg, sz_msg, DK4_LL_ERROR, 5); success = 0; } #ifdef SIGPIPE /* Restore signal handling for SIGPIPE. */ restore_old_pipe: if (0 != sigaction(SIGPIPE, &opipe, NULL)) { /* ERROR: Failed to restore old SIGPIPE settings */ dk4app_log_1(app, dk_blks_msg, sz_msg, DK4_LL_ERROR, 5); success = 0; } #endif /* Set exit status code if error occured. */ finished: if (0 == success) { exval = EXIT_FAILURE; } } #else #if DK4_HAVE_SIGSET /** Set signal handlers and run. */ static void run_with_signals(void) { #ifdef SIGPIPE dk4_sig_handler_t *oldpipe = NULL; #endif dk4_sig_handler_t *oldint = NULL; dk4_sig_handler_t *oldterm = NULL; #ifdef SIGPIPE oldpipe = sigset(SIGPIPE, sig_handler_pipe); #endif oldint = sigset(SIGINT, sig_handler_int); oldterm = sigset(SIGTERM, sig_handler_term); dk_blks_normal_run(); sigset(SIGTERM, oldterm); sigset(SIGINT, oldint); #ifdef SIGPIPE sigset(SIGPIPE, oldpipe); #endif } #else #if DK4_HAVE_SIGNAL /** Set signal handlers and run. */ static void run_with_signals(void) { #ifdef SIGPIPE dk4_sig_handler_t *oldpipe = NULL; #endif dk4_sig_handler_t *oldint = NULL; dk4_sig_handler_t *oldterm = NULL; #ifdef SIGPIPE oldpipe = signal(SIGPIPE, sig_handler_pipe); #endif oldint = signal(SIGINT, sig_handler_int); oldterm = signal(SIGTERM, sig_handler_term); dk_blks_normal_run(); signal(SIGTERM, oldterm); signal(SIGINT, oldint); #ifdef SIGPIPE signal(SIGPIPE, oldpipe); #endif } #else /** Set signal handlers and run. */ static void run_with_signals(void) { dk_blks_normal_run(); } #endif #endif #endif /** Main function. @param argc Number of command line arguments. @param argv Command line arguments array. @return 0 on success, all other values indicate errors. */ #if DK4_CHAR_SIZE > 1 int wmain(int argc, wchar_t *argv[]) #else int main(int argc, char *argv[]) #endif { dkChar const *xargv; int xargc; int i; $!trace-init dk-blks.deb $? "+ main" app = dk4app_open_cmd( argc, argv, options, sz_options, kwnl[0], DKT_VERSION_DK, kwnl[1], help_text, license_text ); if (NULL != app) { sz_msg = dk4app_string_table_size(kw_def); dk_blks_msg = dk4app_string_table(app, kwnl[2], kw_def); if (0 != dk4app_can_run_normally(app)) { run_with_signals(); xargc = dk4app_get_argc(app); if (0 < xargc) { for (i = 0; i < xargc; i++) { xargv = dk4app_get_argv(app, i); if (NULL != xargv) { dk4app_log_3(app, dk_blks_msg, sz_msg, DK4_LL_ERROR, 8, 9, xargv); exval = EXIT_FAILURE; } } } #ifdef SIGPIPE if (0 != sig_read_atomic(&sig_had_pipe)) { dk4app_log_1(app, dk_blks_msg, sz_msg, DK4_LL_ERROR, 6); exval = EXIT_FAILURE; } #endif if (0 != sig_read_atomic(&sig_had_int)) { dk4app_log_1(app, dk_blks_msg, sz_msg, DK4_LL_ERROR, 7); exval = EXIT_FAILURE; } } else { if (0 != dk4app_help_version_license(app)) { exval = EXIT_SUCCESS; } } dk4app_close(app); app = NULL; } else { } $? "- main %d", exval $!trace-end exit(exval); return exval; }