/* Ver. 1.13b Symbolic Link Bug Fix 1994.08.22 N.Watazaki */
/* Ver. 1.14 Source All chagned 1995.01.14 N.Watazaki */
/* Ver. 1.14i bug fixed 2000.10.06 t.okamoto */
+/* Ver. 1.14i autoconfiscated & rewritten 2003.02.23 Koji Arai */
/* ------------------------------------------------------------------------ */
#include "lha.h"
#define strrchr xstrrchr
#endif
-/* ------------------------------------------------------------------------ */
static char *get_ptr;
#define GET_BYTE() (*get_ptr++ & 0xff)
int default_system_kanji_code = NONE;
#endif
-/* ------------------------------------------------------------------------ */
int
calc_sum(p, len)
- register char *p;
- register int len;
+ char *p;
+ int len;
{
- register int sum;
+ int sum = 0;
- for (sum = 0; len; len--)
- sum += *p++;
+ while (len--) sum += *p++;
return sum & 0xff;
}
}
#endif
-/* ------------------------------------------------------------------------ */
static int
get_word()
{
- int b0, b1;
+ int b0, b1;
int w;
#if DUMP_HEADER
return w;
}
-/* ------------------------------------------------------------------------ */
static void
put_word(v)
unsigned int v;
put_byte(v >> 8);
}
-/* ------------------------------------------------------------------------ */
static long
get_longword()
{
- long b0, b1, b2, b3;
+ long b0, b1, b2, b3;
long l;
#if DUMP_HEADER
return l;
}
-/* ------------------------------------------------------------------------ */
static void
put_longword(v)
- long v;
+ long v;
{
put_byte(v);
put_byte(v >> 8);
}
}
-/* ------------------------------------------------------------------------ */
-/* */
-/* Generic stamp format: */
-/* */
-/* 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 */
-/* |<------- year ----->|<- month ->|<--- day ---->| */
-/* */
-/* 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 */
-/* |<--- hour --->|<---- minute --->|<- second*2 ->| */
-/* */
-/* ------------------------------------------------------------------------ */
-
/*
- * NOTE : If you don't have `gettimeofday(2)', or your gettimeofday(2)
- * returns bogus timezone information, try FTIME, MKTIME, TIMELOCAL or TZSET.
+ * Generic (MS-DOS style) time stamp format:
+ *
+ * 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
+ * |<------- year ----->|<- month ->|<--- day ---->|
+ *
+ * 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
+ * |<--- hour --->|<---- minute --->|<- second*2 ->|
+ *
*/
-#ifdef HAVE_FTIME
-#include <sys/timeb.h>
-#endif
-
-#if !defined(HAVE_MKTIME) && !defined(HAVE_TIMELOCAL)
-static long
-gettz()
-{
-#ifdef HAVE_TZSET
-#if defined(_MINIX)
- extern long timezone; /* not defined in time.h */
-#endif
-
- tzset();
- return timezone;
-#elif HAVE_FTIME
- struct timeb buf;
-
- ftime(&buf);
- return buf.timezone * 60L;
-#elif HAVE_STRUCT_TM_TM_GMTOFF
- time_t tt;
-
- time(&tt);
- return -localtime(&tt)->tm_gmtoff;
-#elif GETTIMEOFDAY_HAS_2ND_ARG
- struct timeval tp;
- struct timezone tzp;
- gettimeofday(&tp, &tzp);/* specific to 4.3BSD */
- /*
- * return (tzp.tz_minuteswest * 60L + (tzp.tz_dsttime != 0 ? 60L *
- * 60L : 0));
- */
- return (tzp.tz_minuteswest * 60L);
-#else
- /* Compile error will be caused */
- CANNOT GET TIMEZONE INFORMATION ON YOUR SYSTEM.
- TAKE THE ANOTHER WAY.
-#endif
-}
-#endif
-
-/* ------------------------------------------------------------------------ */
-static time_t
+static time_t
generic_to_unix_stamp(t)
- long t;
+ long t;
{
-#if defined(HAVE_MKTIME) || defined(HAVE_TIMELOCAL)
- struct tm dostm;
+ struct tm dostm;
/*
* special case: if MSDOS format date and time were zero, then we
* set time to be zero here too.
*/
if (t == 0)
- return (time_t) 0;
+ return 0;
dostm.tm_sec = (t & 0x1f) * 2;
dostm.tm_min = t >> 5 & 0x3f;
dostm.tm_isdst = -1;
#if HAVE_MKTIME
- return (time_t) mktime(&dostm);
-#else /* HAVE_TIMELOCAL is defined */
- return (time_t) timelocal(&dostm);
+ return mktime(&dostm);
+#else
+ return timelocal(&dostm);
#endif
-
-#else /* defined(HAVE_MKTIME) || defined(HAVE_TIMELOCAL) */
- int year, month, day, hour, min, sec;
- long longtime;
- static unsigned int dsboy[12] = {0, 31, 59, 90, 120, 151,
- 181, 212, 243, 273, 304, 334};
- unsigned int days;
-
- /*
- * special case: if MSDOS format date and time were zero, then we
- * set time to be zero here too.
- */
- if (t == 0)
- return (time_t) 0;
-
- year = ((int) (t >> 16 + 9) & 0x7f) + 1980;
- month = (int) (t >> 16 + 5) & 0x0f; /* 1..12 means Jan..Dec */
- day = (int) (t >> 16) & 0x1f; /* 1..31 means 1st,...31st */
-
- hour = ((int) t >> 11) & 0x1f;
- min = ((int) t >> 5) & 0x3f;
- sec = ((int) t & 0x1f) * 2;
-
- /* Calculate days since 1970.01.01 */
- days = (365 * (year - 1970) + /* days due to whole years */
- (year - 1970 + 1) / 4 + /* days due to leap years */
- dsboy[month - 1] + /* days since beginning of this year */
- day - 1); /* days since beginning of month */
-
- if ((year % 4 == 0) &&
- (year % 100 != 0 || year % 400 == 0) && /* 1999.5.24 t.oka */
- (month >= 3)) /* if this is a leap year and month */
- days++; /* is March or later, add a day */
-
- /* Knowing the days, we can find seconds */
- longtime = (((days * 24) + hour) * 60 + min) * 60 + sec;
- longtime += gettz(); /* adjust for timezone */
-
- /* LONGTIME is now the time in seconds, since 1970/01/01 00:00:00. */
- return (time_t) longtime;
-#endif /* defined(HAVE_MKTIME) || defined(HAVE_TIMELOCAL) */
}
-/* ------------------------------------------------------------------------ */
static long
unix_to_generic_stamp(t)
- time_t t;
+ time_t t;
{
- struct tm *tm = localtime(&t);
-
- return ((((long) (tm->tm_year - 80)) << 25) +
- (((long) (tm->tm_mon + 1)) << 21) +
- (((long) tm->tm_mday) << 16) +
- (long) ((tm->tm_hour << 11) +
- (tm->tm_min << 5) +
- (tm->tm_sec / 2)));
+ struct tm *tm = localtime(&t);
+
+ tm->tm_year -= 80;
+ tm->tm_mon += 1;
+
+ return ((long)(tm->tm_year << 25) +
+ (tm->tm_mon << 21) +
+ (tm->tm_mday << 16) +
+ (tm->tm_hour << 11) +
+ (tm->tm_min << 5) +
+ (tm->tm_sec / 2));
}
static unsigned long
#endif
}
-/* ------------------------------------------------------------------------ */
-/* build header functions */
-/* ------------------------------------------------------------------------ */
-
/*
* extended header
*
continue;
/* found "-l??-" keyword (as METHOD type string) */
- /* size and checksum validate check */
-
/* level 0 or 1 header */
if ((p[I_HEADER_LEVEL] == 0 || p[I_HEADER_LEVEL] == 1)
&& p[I_HEADER_SIZE] > 20
return -1;
}
-/* ------------------------------------------------------------------------ */
void
init_header(name, v_stat, hdr)
char *name;
}
}
-/* ------------------------------------------------------------------------ */
-/* Write unix extended header or generic header. */
-
static size_t
write_header_level0(data, hdr, pathname)
LzHeader *hdr;
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