[PATCH] Cleanup: git-verify-tag-script

[git.git] / date.c

diff --git a/date.c b/date.c
index 1f366a6..b46f2ce 100644 (file)
--- a/date.c
+++ b/date.c
@@ -4,9 +4,6 @@
  * Copyright (C) Linus Torvalds, 2005
  */
 
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
 #include <ctype.h>
 #include <time.h>
 
@@ -227,7 +224,7 @@ static int is_date(int year, int month, int day, struct tm *tm)
        return 0;
 }
 
-static int match_multi_number(unsigned long num, char c, 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)
 {
        long num2, num3;
 
@@ -273,7 +270,7 @@ static int match_multi_number(unsigned long num, char c, char *date, char *end,
 /*
  * We've seen a digit. Time? Year? Date? 
  */
-static int match_digit(char *date, struct tm *tm, int *offset)
+static int match_digit(const char *date, struct tm *tm, int *offset, int *tm_gmt)
 {
        int n;
        char *end;
@@ -286,8 +283,10 @@ static int match_digit(char *date, struct tm *tm, int *offset)
         */
        if (num > 946684800) {
                time_t time = num;
-               if (gmtime_r(&time, tm))
+               if (gmtime_r(&time, tm)) {
+                       *tm_gmt = 1;
                        return end - date;
+               }
        }
 
        /*
@@ -362,7 +361,7 @@ static int match_digit(char *date, struct tm *tm, int *offset)
        return n;
 }
 
-static int match_tz(char *date, int *offp)
+static int match_tz(const char *date, int *offp)
 {
        char *end;
        int offset = strtoul(date+1, &end, 10);
@@ -389,10 +388,10 @@ static int match_tz(char *date, int *offp)
 
 /* Gr. strptime is crap for this; it doesn't have a way to require RFC2822
    (i.e. English) day/month names, and it doesn't work correctly with %z. */
-void parse_date(char *date, char *result, int maxlen)
+void parse_date(const char *date, char *result, int maxlen)
 {
        struct tm tm;
-       int offset, sign;
+       int offset, sign, tm_gmt;
        time_t then;
 
        memset(&tm, 0, sizeof(tm));
@@ -401,6 +400,7 @@ void parse_date(char *date, char *result, int maxlen)
        tm.tm_mday = -1;
        tm.tm_isdst = -1;
        offset = -1;
+       tm_gmt = 0;
 
        for (;;) {
                int match = 0;
@@ -413,7 +413,7 @@ void parse_date(char *date, char *result, int maxlen)
                if (isalpha(c))
                        match = match_alpha(date, &tm, &offset);
                else if (isdigit(c))
-                       match = match_digit(date, &tm, &offset);
+                       match = match_digit(date, &tm, &offset, &tm_gmt);
                else if ((c == '-' || c == '+') && isdigit(date[1]))
                        match = match_tz(date, &offset);
 
@@ -433,7 +433,8 @@ void parse_date(char *date, char *result, int maxlen)
        if (then == -1)
                return;
 
-       then -= offset * 60;
+       if (!tm_gmt)
+               then -= offset * 60;
 
        sign = '+';
        if (offset < 0) {