From 408b617b057a187fd2cef65fb46511318a267a99 Mon Sep 17 00:00:00 2001 From: Scott Worley Date: Sat, 5 Jul 2014 22:07:23 -0700 Subject: [PATCH] Allow the output file to be specified --- keystroke-timestamps.c | 22 +++++++++++++++++++--- 1 file changed, 19 insertions(+), 3 deletions(-) diff --git a/keystroke-timestamps.c b/keystroke-timestamps.c index d7aeaf6..5a27279 100644 --- a/keystroke-timestamps.c +++ b/keystroke-timestamps.c @@ -13,8 +13,10 @@ int main (int argc, char **argv) { int print_usec = 0; char* device = "/dev/input/by-path/*kbd*"; + char* output = NULL; struct option long_options[] = { {"device", required_argument, 0, 'd' }, + {"output", required_argument, 0, 'o' }, {"usec", no_argument, &print_usec, 1 }, {0, 0, 0, 0 }, }; @@ -25,9 +27,23 @@ int main (int argc, char **argv) device = optarg; continue; } + if (c == 'o') { + output = optarg; + continue; + } if (c != 0) exit(EX_USAGE); } + FILE *output_file; + if (output == NULL) { + output_file = stdout; + } else { + output_file = fopen(output, "a"); + if (output_file == NULL) { + err(EX_CANTCREAT, "Could not open output file: %s", output); + } + } + fd_set all_inputs; FD_ZERO(&all_inputs); int maxfd = 0; @@ -68,11 +84,11 @@ int main (int argc, char **argv) } if (i.type == 1 && i.value == 1) { if (print_usec) { - printf("%ld.%06ld\n", i.time.tv_sec, i.time.tv_usec); + fprintf(output_file, "%ld.%06ld\n", i.time.tv_sec, i.time.tv_usec); } else { - printf("%ld\n", i.time.tv_sec); + fprintf(output_file, "%ld\n", i.time.tv_sec); } - fflush(stdout); + fflush(output_file); } } } -- 2.51.2