diff options
author | Denis Vlasenko <vda.linux@googlemail.com> | 2008-03-25 05:43:34 +0300 |
---|---|---|
committer | Denis Vlasenko <vda.linux@googlemail.com> | 2008-03-25 05:43:34 +0300 |
commit | 9ce4ae8142b191ab6c2135165d5904351b48f665 (patch) | |
tree | 0064cf06ce484a14cacfecff0299b3f32c8ec1dd /coreutils/date.c | |
parent | 92e13c2a11381eec06a382de6917369ded240804 (diff) |
date: make help text more understandable; small shrink
text data bss dec hex filename
799025 641 7380 807046 c5086 busybox_old
799009 641 7380 807030 c5076 busybox_unstripped
Diffstat (limited to 'coreutils/date.c')
-rw-r--r-- | coreutils/date.c | 104 |
1 files changed, 51 insertions, 53 deletions
diff --git a/coreutils/date.c b/coreutils/date.c index a8e339333..064f758e2 100644 --- a/coreutils/date.c +++ b/coreutils/date.c @@ -39,70 +39,70 @@ static void maybe_set_utc(int opt) } int date_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; -int date_main(int argc, char **argv) +int date_main(int argc ATTRIBUTE_UNUSED, char **argv) { - time_t tm; struct tm tm_time; + time_t tm; unsigned opt; int ifmt = -1; - char *date_str = NULL; - char *date_fmt = NULL; - char *filename = NULL; - char *isofmt_arg; - char *hintfmt_arg; + char *date_str; + char *fmt_dt2str; + char *fmt_str2dt; + char *filename; + char *isofmt_arg = NULL; opt_complementary = "d--s:s--d" USE_FEATURE_DATE_ISOFMT(":R--I:I--R"); opt = getopt32(argv, "Rs:ud:r:" USE_FEATURE_DATE_ISOFMT("I::D:"), &date_str, &date_str, &filename - USE_FEATURE_DATE_ISOFMT(, &isofmt_arg, &hintfmt_arg)); + USE_FEATURE_DATE_ISOFMT(, &isofmt_arg, &fmt_str2dt)); + argv += optind; maybe_set_utc(opt); if (ENABLE_FEATURE_DATE_ISOFMT && (opt & DATE_OPT_TIMESPEC)) { - if (!isofmt_arg) { - ifmt = 0; /* default is date */ - } else { - static const char *const isoformats[] = { - "date", "hours", "minutes", "seconds" - }; - - for (ifmt = 0; ifmt < 4; ifmt++) - if (!strcmp(isofmt_arg, isoformats[ifmt])) - goto found; - /* parse error */ - bb_show_usage(); - found: ; + ifmt = 0; /* default is date */ + if (isofmt_arg) { + static const char isoformats[] ALIGN1 = + "date\0""hours\0""minutes\0""seconds\0"; + ifmt = index_in_strings(isoformats, isofmt_arg); + if (ifmt < 0) + bb_show_usage(); } } - /* XXX, date_fmt == NULL from this always */ - if ((date_fmt == NULL) && (optind < argc) && (argv[optind][0] == '+')) { - date_fmt = &argv[optind][1]; /* Skip over the '+' */ - } else if (date_str == NULL) { + fmt_dt2str = NULL; + if (argv[0] && argv[0][0] == '+') { + fmt_dt2str = &argv[0][1]; /* Skip over the '+' */ + argv++; + } + if (!(opt & (DATE_OPT_SET | DATE_OPT_DATE))) { opt |= DATE_OPT_SET; - date_str = argv[optind]; + date_str = argv[0]; /* can be NULL */ } /* Now we have parsed all the information except the date format which depends on whether the clock is being set or read */ - if (filename) { + if (opt & DATE_OPT_REFERENCE) { struct stat statbuf; xstat(filename, &statbuf); tm = statbuf.st_mtime; } else time(&tm); memcpy(&tm_time, localtime(&tm), sizeof(tm_time)); - /* Zero out fields - take her back to midnight! */ + + /* If date string is given, update tm_time, and maybe set date */ if (date_str != NULL) { + /* Zero out fields - take her back to midnight! */ tm_time.tm_sec = 0; tm_time.tm_min = 0; tm_time.tm_hour = 0; /* Process any date input to UNIX time since 1 Jan 1970 */ if (ENABLE_FEATURE_DATE_ISOFMT && (opt & DATE_OPT_HINT)) { - strptime(date_str, hintfmt_arg, &tm_time); + if (strptime(date_str, fmt_str2dt, &tm_time) == NULL) + bb_error_msg_and_die(bb_msg_invalid_date, date_str); } else if (strchr(date_str, ':') != NULL) { /* Parse input and assign appropriately to tm_time */ @@ -181,55 +181,53 @@ int date_main(int argc, char **argv) /* Display output */ /* Deal with format string */ - - if (date_fmt == NULL) { + if (fmt_dt2str == NULL) { int i; - date_fmt = xzalloc(32); + fmt_dt2str = xzalloc(32); if (ENABLE_FEATURE_DATE_ISOFMT && ifmt >= 0) { - strcpy(date_fmt, "%Y-%m-%d"); + strcpy(fmt_dt2str, "%Y-%m-%d"); if (ifmt > 0) { i = 8; - date_fmt[i++] = 'T'; - date_fmt[i++] = '%'; - date_fmt[i++] = 'H'; + fmt_dt2str[i++] = 'T'; + fmt_dt2str[i++] = '%'; + fmt_dt2str[i++] = 'H'; if (ifmt > 1) { - date_fmt[i++] = ':'; - date_fmt[i++] = '%'; - date_fmt[i++] = 'M'; - } - if (ifmt > 2) { - date_fmt[i++] = ':'; - date_fmt[i++] = '%'; - date_fmt[i++] = 'S'; + fmt_dt2str[i++] = ':'; + fmt_dt2str[i++] = '%'; + fmt_dt2str[i++] = 'M'; + if (ifmt > 2) { + fmt_dt2str[i++] = ':'; + fmt_dt2str[i++] = '%'; + fmt_dt2str[i++] = 'S'; + } } format_utc: - date_fmt[i++] = '%'; - date_fmt[i] = (opt & DATE_OPT_UTC) ? 'Z' : 'z'; + fmt_dt2str[i++] = '%'; + fmt_dt2str[i] = (opt & DATE_OPT_UTC) ? 'Z' : 'z'; } } else if (opt & DATE_OPT_RFC2822) { /* Undo busybox.c for date -R */ if (ENABLE_LOCALE_SUPPORT) setlocale(LC_TIME, "C"); - strcpy(date_fmt, "%a, %d %b %Y %H:%M:%S "); + strcpy(fmt_dt2str, "%a, %d %b %Y %H:%M:%S "); i = 22; goto format_utc; } else /* default case */ - date_fmt = (char*)"%a %b %e %H:%M:%S %Z %Y"; + fmt_dt2str = (char*)"%a %b %e %H:%M:%S %Z %Y"; } #define date_buf bb_common_bufsiz1 - if (*date_fmt == '\0') { + if (*fmt_dt2str == '\0') { /* With no format string, just print a blank line */ date_buf[0] = '\0'; } else { /* Handle special conversions */ - - if (strncmp(date_fmt, "%f", 2) == 0) { - date_fmt = (char*)"%Y.%m.%d-%H:%M:%S"; + if (strncmp(fmt_dt2str, "%f", 2) == 0) { + fmt_dt2str = (char*)"%Y.%m.%d-%H:%M:%S"; } /* Generate output string */ - strftime(date_buf, sizeof(date_buf), date_fmt, &tm_time); + strftime(date_buf, sizeof(date_buf), fmt_dt2str, &tm_time); } puts(date_buf); |