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author | Anton Babushkin <anton.babushkin@me.com> | 2014-03-16 11:08:54 +0400 |
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committer | Anton Babushkin <anton.babushkin@me.com> | 2014-03-16 11:08:54 +0400 |
commit | 82389e97028660a9ae908998772b9a93696e2e5b (patch) | |
tree | 47546776a7693c92d223e7666a6e81dbf1c47768 /src/systemcmds/dumpfile/dumpfile.c | |
parent | 5f847ff8a3df1ba303129a7a4938305a6901755c (diff) | |
parent | 955bd402d2fb398fb64c55a885306b7054b55ce0 (diff) | |
download | px4-firmware-82389e97028660a9ae908998772b9a93696e2e5b.tar.gz px4-firmware-82389e97028660a9ae908998772b9a93696e2e5b.tar.bz2 px4-firmware-82389e97028660a9ae908998772b9a93696e2e5b.zip |
Merge branch 'beta_mavlink2' into mavlink2_hil
Diffstat (limited to 'src/systemcmds/dumpfile/dumpfile.c')
-rw-r--r-- | src/systemcmds/dumpfile/dumpfile.c | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/src/systemcmds/dumpfile/dumpfile.c b/src/systemcmds/dumpfile/dumpfile.c new file mode 100644 index 000000000..c18814342 --- /dev/null +++ b/src/systemcmds/dumpfile/dumpfile.c @@ -0,0 +1,116 @@ +/**************************************************************************** + * + * Copyright (c) 2014 PX4 Development Team. 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. 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. + * 3. Neither the name PX4 nor the names of its 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. + * + ****************************************************************************/ + +/** + * @file dumpfile.c + * + * Dump file utility. Prints file size and contents in binary mode (don't replace LF with CR LF) to stdout. + * + * @author Anton Babushkin <anton.babushkin@me.com> + */ + +#include <nuttx/config.h> +#include <unistd.h> +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <fcntl.h> +#include <termios.h> + +#include <systemlib/err.h> + +__EXPORT int dumpfile_main(int argc, char *argv[]); + +int +dumpfile_main(int argc, char *argv[]) +{ + if (argc < 2) { + errx(1, "usage: dumpfile <filename>"); + } + + /* open input file */ + FILE *f; + f = fopen(argv[1], "r"); + + if (f == NULL) { + printf("ERROR\n"); + exit(1); + } + + /* get file size */ + fseek(f, 0L, SEEK_END); + int size = ftell(f); + fseek(f, 0L, SEEK_SET); + + printf("OK %d\n", size); + + /* configure stdout */ + int out = fileno(stdout); + + struct termios tc; + struct termios tc_old; + tcgetattr(out, &tc); + + /* save old terminal attributes to restore it later on exit */ + memcpy(&tc_old, &tc, sizeof(tc)); + + /* don't add CR on each LF*/ + tc.c_oflag &= ~ONLCR; + + if (tcsetattr(out, TCSANOW, &tc) < 0) { + warnx("ERROR setting stdout attributes"); + exit(1); + } + + char buf[512]; + int nread; + + /* dump file */ + while ((nread = fread(buf, 1, sizeof(buf), f)) > 0) { + if (write(out, buf, nread) <= 0) { + warnx("error dumping file"); + break; + } + } + + fsync(out); + fclose(f); + + /* restore old terminal attributes */ + if (tcsetattr(out, TCSANOW, &tc_old) < 0) { + warnx("ERROR restoring stdout attributes"); + exit(1); + } + + return OK; +} |