/* vi: set sw=4 ts=4: */ /* * Copyright (C) 2019 Denys Vlasenko * Licensed under GPLv2, see file LICENSE in this source tree. */ //config:config TS //config: bool "ts (4.4 kb)" //config: default y //applet:IF_TS(APPLET(ts, BB_DIR_USR_BIN, BB_SUID_DROP)) //kbuild:lib-$(CONFIG_TS) += ts.o //usage:#define ts_trivial_usage //usage: "[-is] [STRFTIME]" //usage:#define ts_full_usage "\n\n" //usage: "Pipe stdin to stdout, add timestamp to each line\n" //usage: "\n -s Time since start" //usage: "\n -i Time since previous line" #include "libbb.h" #include "common_bufsiz.h" int ts_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; int ts_main(int argc UNUSED_PARAM, char **argv) { struct timeval base; unsigned opt; char *frac; char *fmt_dt2str; char *line; opt = getopt32(argv, "^" "is" "\0" "?1" /*max one arg*/); if (opt) { putenv((char*)"TZ=UTC0"); tzset(); } /*argc -= optind;*/ argv += optind; fmt_dt2str = argv[0] ? argv[0] : (char*)(opt ? "%b %d %H:%M:%S"+6 : "%b %d %H:%M:%S"); frac = is_suffixed_with(fmt_dt2str, "%.S"); if (!frac) frac = is_suffixed_with(fmt_dt2str, "%.s"); if (frac) { frac++; frac[0] = frac[1]; frac[1] = '\0'; } #define date_buf bb_common_bufsiz1 setup_common_bufsiz(); xgettimeofday(&base); while ((line = xmalloc_fgets(stdin)) != NULL) { struct timeval ts; struct tm tm_time; xgettimeofday(&ts); if (opt) { /* -i and/or -s */ struct timeval ts1 = ts1; if (opt & 1) /* -i */ ts1 = ts; //printf("%d %d\n", ts.tv_sec, base.tv_sec); ts.tv_sec -= base.tv_sec; //printf("%d %d\n", ts.tv_sec, base.tv_sec); ts.tv_usec -= base.tv_usec; if ((int32_t)(ts.tv_usec) < 0) { ts.tv_sec--; ts.tv_usec += 1000*1000; } if (opt & 1) /* -i */ base = ts1; } localtime_r(&ts.tv_sec, &tm_time); strftime(date_buf, COMMON_BUFSIZE, fmt_dt2str, &tm_time); if (!frac) { printf("%s %s", date_buf, line); } else { printf("%s.%06u %s", date_buf, (unsigned)ts.tv_usec, line); } free(line); } return EXIT_SUCCESS; }