diff options
Diffstat (limited to 'date.c')
| -rw-r--r-- | date.c | 73 |
1 files changed, 54 insertions, 19 deletions
@@ -144,8 +144,8 @@ void show_date_relative(unsigned long time, int tz, if (months) { struct strbuf sb = STRBUF_INIT; strbuf_addf(&sb, Q_("%lu year", "%lu years", years), years); - /* TRANSLATORS: "%s" is "<n> years" */ strbuf_addf(timebuf, + /* TRANSLATORS: "%s" is "<n> years" */ Q_("%s, %lu month ago", "%s, %lu months ago", months), sb.buf, months); strbuf_release(&sb); @@ -184,8 +184,10 @@ const char *show_date(unsigned long time, int tz, enum date_mode mode) tz = local_tzoffset(time); tm = time_to_tm(time, tz); - if (!tm) - return NULL; + if (!tm) { + tm = time_to_tm(0, 0); + tz = 0; + } strbuf_reset(&timebuf); if (mode == DATE_SHORT) @@ -198,7 +200,16 @@ const char *show_date(unsigned long time, int tz, enum date_mode mode) tm->tm_mday, tm->tm_hour, tm->tm_min, tm->tm_sec, tz); - else if (mode == DATE_RFC2822) + else if (mode == DATE_ISO8601_STRICT) { + char sign = (tz >= 0) ? '+' : '-'; + tz = abs(tz); + strbuf_addf(&timebuf, "%04d-%02d-%02dT%02d:%02d:%02d%c%02d:%02d", + tm->tm_year + 1900, + tm->tm_mon + 1, + tm->tm_mday, + tm->tm_hour, tm->tm_min, tm->tm_sec, + sign, tz / 100, tz % 100); + } else if (mode == DATE_RFC2822) strbuf_addf(&timebuf, "%.3s, %d %.3s %d %02d:%02d:%02d %+05d", weekday_names[tm->tm_wday], tm->tm_mday, month_names[tm->tm_mon], tm->tm_year + 1900, @@ -394,9 +405,9 @@ static int is_date(int year, int month, int day, struct tm *now_tm, time_t now, return 0; } -static int match_multi_number(unsigned long num, char c, const char *date, char *end, struct tm *tm) +static int match_multi_number(unsigned long num, char c, const char *date, + char *end, struct tm *tm, time_t now) { - time_t now; struct tm now_tm; struct tm *refuse_future; long num2, num3; @@ -422,17 +433,18 @@ static int match_multi_number(unsigned long num, char c, const char *date, char case '-': case '/': case '.': - now = time(NULL); + if (!now) + now = time(NULL); refuse_future = NULL; if (gmtime_r(&now, &now_tm)) refuse_future = &now_tm; if (num > 70) { /* yyyy-mm-dd? */ - if (is_date(num, num2, num3, refuse_future, now, tm)) + if (is_date(num, num2, num3, NULL, now, tm)) break; /* yyyy-dd-mm? */ - if (is_date(num, num3, num2, refuse_future, now, tm)) + if (is_date(num, num3, num2, NULL, now, tm)) break; } /* Our eastern European friends say dd.mm.yy[yy] @@ -502,7 +514,7 @@ static int match_digit(const char *date, struct tm *tm, int *offset, int *tm_gmt case '/': case '-': if (isdigit(end[1])) { - int match = match_multi_number(num, *end, date, end, tm); + int match = match_multi_number(num, *end, date, end, tm, 0); if (match) return match; } @@ -603,7 +615,7 @@ static int match_tz(const char *date, int *offp) return end - date; } -static int date_string(unsigned long date, int offset, char *buf, int len) +static void date_string(unsigned long date, int offset, struct strbuf *buf) { int sign = '+'; @@ -611,7 +623,7 @@ static int date_string(unsigned long date, int offset, char *buf, int len) offset = -offset; sign = '-'; } - return snprintf(buf, len, "%lu %c%02d%02d", date, sign, offset / 60, offset % 60); + strbuf_addf(buf, "%lu %c%02d%02d", date, sign, offset / 60, offset % 60); } /* @@ -733,13 +745,14 @@ int parse_expiry_date(const char *date, unsigned long *timestamp) return errors; } -int parse_date(const char *date, char *result, int maxlen) +int parse_date(const char *date, struct strbuf *result) { unsigned long timestamp; int offset; if (parse_date_basic(date, ×tamp, &offset)) return -1; - return date_string(timestamp, offset, result, maxlen); + date_string(timestamp, offset, result); + return 0; } enum date_mode parse_date_format(const char *format) @@ -749,6 +762,9 @@ enum date_mode parse_date_format(const char *format) else if (!strcmp(format, "iso8601") || !strcmp(format, "iso")) return DATE_ISO8601; + else if (!strcmp(format, "iso8601-strict") || + !strcmp(format, "iso-strict")) + return DATE_ISO8601_STRICT; else if (!strcmp(format, "rfc2822") || !strcmp(format, "rfc")) return DATE_RFC2822; @@ -764,7 +780,7 @@ enum date_mode parse_date_format(const char *format) die("unknown date format %s", format); } -void datestamp(char *buf, int bufsize) +void datestamp(struct strbuf *out) { time_t now; int offset; @@ -774,7 +790,7 @@ void datestamp(char *buf, int bufsize) offset = tm_to_time_t(localtime(&now)) - now; offset /= 60; - date_string(now, offset, buf, bufsize); + date_string(now, offset, out); } /* @@ -998,7 +1014,8 @@ static const char *approxidate_alpha(const char *date, struct tm *tm, struct tm return end; } -static const char *approxidate_digit(const char *date, struct tm *tm, int *num) +static const char *approxidate_digit(const char *date, struct tm *tm, int *num, + time_t now) { char *end; unsigned long number = strtoul(date, &end, 10); @@ -1009,7 +1026,8 @@ static const char *approxidate_digit(const char *date, struct tm *tm, int *num) case '/': case '-': if (isdigit(end[1])) { - int match = match_multi_number(number, *end, date, end, tm); + int match = match_multi_number(number, *end, date, end, + tm, now); if (match) return date + match; } @@ -1072,7 +1090,7 @@ static unsigned long approxidate_str(const char *date, date++; if (isdigit(c)) { pending_number(&tm, &number); - date = approxidate_digit(date-1, &tm, &number); + date = approxidate_digit(date-1, &tm, &number, time_sec); touched = 1; continue; } @@ -1113,3 +1131,20 @@ unsigned long approxidate_careful(const char *date, int *error_ret) gettimeofday(&tv, NULL); return approxidate_str(date, &tv, error_ret); } + +int date_overflows(unsigned long t) +{ + time_t sys; + + /* If we overflowed our unsigned long, that's bad... */ + if (t == ULONG_MAX) + return 1; + + /* + * ...but we also are going to feed the result to system + * functions that expect time_t, which is often "signed long". + * Make sure that we fit into time_t, as well. + */ + sys = t; + return t != sys || (t < 1) != (sys < 1); +} |