X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Fshared%2Futil.c;h=1c97a8a94ae65386b7731c672e4e1248d7f65826;hb=01539d6ef9689ffdc7c0743e12740a78bb938b97;hp=6310aec8aaf94342a1e4b141f1d3c8b91220dde6;hpb=011afa76fb7b888a0a29e46665708c404f991e5d;p=elogind.git diff --git a/src/shared/util.c b/src/shared/util.c index 6310aec8a..1c97a8a94 100644 --- a/src/shared/util.c +++ b/src/shared/util.c @@ -143,6 +143,10 @@ dual_timestamp* dual_timestamp_from_realtime(dual_timestamp *ts, usec_t u) { usec_t timespec_load(const struct timespec *ts) { assert(ts); + if (ts->tv_sec == (time_t) -1 && + ts->tv_nsec == (long) -1) + return (usec_t) -1; + return (usec_t) ts->tv_sec * USEC_PER_SEC + (usec_t) ts->tv_nsec / NSEC_PER_USEC; @@ -151,6 +155,12 @@ usec_t timespec_load(const struct timespec *ts) { struct timespec *timespec_store(struct timespec *ts, usec_t u) { assert(ts); + if (u == (usec_t) -1) { + ts->tv_sec = (time_t) -1; + ts->tv_nsec = (long) -1; + return ts; + } + ts->tv_sec = (time_t) (u / USEC_PER_SEC); ts->tv_nsec = (long int) ((u % USEC_PER_SEC) * NSEC_PER_USEC); @@ -160,6 +170,10 @@ struct timespec *timespec_store(struct timespec *ts, usec_t u) { usec_t timeval_load(const struct timeval *tv) { assert(tv); + if (tv->tv_sec == (time_t) -1 && + tv->tv_usec == (suseconds_t) -1) + return (usec_t) -1; + return (usec_t) tv->tv_sec * USEC_PER_SEC + (usec_t) tv->tv_usec; @@ -168,6 +182,12 @@ usec_t timeval_load(const struct timeval *tv) { struct timeval *timeval_store(struct timeval *tv, usec_t u) { assert(tv); + if (u == (usec_t) -1) { + tv->tv_sec = (time_t) -1; + tv->tv_usec = (suseconds_t) -1; + return tv; + } + tv->tv_sec = (time_t) (u / USEC_PER_SEC); tv->tv_usec = (suseconds_t) (u % USEC_PER_SEC); @@ -1939,7 +1959,7 @@ char *format_timestamp(char *buf, size_t l, usec_t t) { sec = (time_t) (t / USEC_PER_SEC); - if (strftime(buf, l, "%a, %d %b %Y %H:%M:%S %z", localtime_r(&sec, &tm)) <= 0) + if (strftime(buf, l, "%a, %Y-%m-%d %H:%M:%S %Z", localtime_r(&sec, &tm)) <= 0) return NULL; return buf; @@ -2733,16 +2753,31 @@ int parse_usec(const char *t, usec_t *usec) { const char *suffix; usec_t usec; } table[] = { + { "seconds", USEC_PER_SEC }, + { "second", USEC_PER_SEC }, { "sec", USEC_PER_SEC }, { "s", USEC_PER_SEC }, + { "minutes", USEC_PER_MINUTE }, + { "minute", USEC_PER_MINUTE }, { "min", USEC_PER_MINUTE }, + { "months", USEC_PER_MONTH }, + { "month", USEC_PER_MONTH }, + { "msec", USEC_PER_MSEC }, + { "ms", USEC_PER_MSEC }, + { "m", USEC_PER_MINUTE }, + { "hours", USEC_PER_HOUR }, + { "hour", USEC_PER_HOUR }, { "hr", USEC_PER_HOUR }, { "h", USEC_PER_HOUR }, + { "days", USEC_PER_DAY }, + { "day", USEC_PER_DAY }, { "d", USEC_PER_DAY }, + { "weeks", USEC_PER_WEEK }, + { "week", USEC_PER_WEEK }, { "w", USEC_PER_WEEK }, - { "msec", USEC_PER_MSEC }, - { "ms", USEC_PER_MSEC }, - { "m", USEC_PER_MINUTE }, + { "years", USEC_PER_YEAR }, + { "year", USEC_PER_YEAR }, + { "y", USEC_PER_YEAR }, { "usec", 1ULL }, { "us", 1ULL }, { "", USEC_PER_SEC }, /* default is sec */ @@ -2796,16 +2831,31 @@ int parse_nsec(const char *t, nsec_t *nsec) { const char *suffix; nsec_t nsec; } table[] = { + { "seconds", NSEC_PER_SEC }, + { "second", NSEC_PER_SEC }, { "sec", NSEC_PER_SEC }, { "s", NSEC_PER_SEC }, + { "minutes", NSEC_PER_MINUTE }, + { "minute", NSEC_PER_MINUTE }, { "min", NSEC_PER_MINUTE }, + { "months", NSEC_PER_MONTH }, + { "month", NSEC_PER_MONTH }, + { "msec", NSEC_PER_MSEC }, + { "ms", NSEC_PER_MSEC }, + { "m", NSEC_PER_MINUTE }, + { "hours", NSEC_PER_HOUR }, + { "hour", NSEC_PER_HOUR }, { "hr", NSEC_PER_HOUR }, { "h", NSEC_PER_HOUR }, + { "days", NSEC_PER_DAY }, + { "day", NSEC_PER_DAY }, { "d", NSEC_PER_DAY }, + { "weeks", NSEC_PER_WEEK }, + { "week", NSEC_PER_WEEK }, { "w", NSEC_PER_WEEK }, - { "msec", NSEC_PER_MSEC }, - { "ms", NSEC_PER_MSEC }, - { "m", NSEC_PER_MINUTE }, + { "years", NSEC_PER_YEAR }, + { "year", NSEC_PER_YEAR }, + { "y", NSEC_PER_YEAR }, { "usec", NSEC_PER_USEC }, { "us", NSEC_PER_USEC }, { "nsec", 1ULL }, @@ -5879,7 +5929,7 @@ bool string_is_safe(const char *p) { assert(p); for (t = p; *t; t++) { - if (*t < ' ') + if (*t > 0 && *t < ' ') return false; if (strchr("\\\"\'", *t)) @@ -5888,3 +5938,136 @@ bool string_is_safe(const char *p) { return true; } + +int parse_timestamp(const char *t, usec_t *usec) { + const char *k; + struct tm tm, copy; + time_t x; + usec_t plus = 0, minus = 0, ret; + int r; + + /* + * Allowed syntaxes: + * + * 2012-09-22 16:34:22 + * 2012-09-22 16:34 (seconds will be set to 0) + * 2012-09-22 (time will be set to 00:00:00) + * 16:34:22 (date will be set to today) + * 16:34 (date will be set to today, seconds to 0) + * now + * yesterday (time is set to 00:00:00) + * today (time is set to 00:00:00) + * tomorrow (time is set to 00:00:00) + * +5min + * -5days + * + */ + + assert(t); + assert(usec); + + x = time(NULL); + assert_se(localtime_r(&x, &tm)); + + if (streq(t, "now")) + goto finish; + + else if (streq(t, "today")) { + tm.tm_sec = tm.tm_min = tm.tm_hour = 0; + goto finish; + + } else if (streq(t, "yesterday")) { + tm.tm_mday --; + tm.tm_sec = tm.tm_min = tm.tm_hour = 0; + goto finish; + + } else if (streq(t, "tomorrow")) { + tm.tm_mday ++; + tm.tm_sec = tm.tm_min = tm.tm_hour = 0; + goto finish; + + } else if (t[0] == '+') { + + r = parse_usec(t+1, &plus); + if (r < 0) + return r; + + goto finish; + } else if (t[0] == '-') { + + r = parse_usec(t+1, &minus); + if (r < 0) + return r; + + goto finish; + } + + copy = tm; + k = strptime(t, "%y-%m-%d %H:%M:%S", &tm); + if (k && *k == 0) + goto finish; + + tm = copy; + k = strptime(t, "%Y-%m-%d %H:%M:%S", &tm); + if (k && *k == 0) + goto finish; + + tm = copy; + k = strptime(t, "%y-%m-%d %H:%M", &tm); + if (k && *k == 0) { + tm.tm_sec = 0; + goto finish; + } + + tm = copy; + k = strptime(t, "%Y-%m-%d %H:%M", &tm); + if (k && *k == 0) { + tm.tm_sec = 0; + goto finish; + } + + tm = copy; + k = strptime(t, "%y-%m-%d", &tm); + if (k && *k == 0) { + tm.tm_sec = tm.tm_min = tm.tm_hour = 0; + goto finish; + } + + tm = copy; + k = strptime(t, "%Y-%m-%d", &tm); + if (k && *k == 0) { + tm.tm_sec = tm.tm_min = tm.tm_hour = 0; + goto finish; + } + + tm = copy; + k = strptime(t, "%H:%M:%S", &tm); + if (k && *k == 0) + goto finish; + + tm = copy; + k = strptime(t, "%H:%M", &tm); + if (k && *k == 0) { + tm.tm_sec = 0; + goto finish; + } + + return -EINVAL; + +finish: + x = mktime(&tm); + if (x == (time_t) -1) + return -EINVAL; + + ret = (usec_t) x * USEC_PER_SEC; + + ret += plus; + if (ret > minus) + ret -= minus; + else + ret = 0; + + *usec = ret; + + return 0; +}