Index: src/winsup/cygwin/times.cc
===================================================================
RCS file: /cvs/src/src/winsup/cygwin/times.cc,v
retrieving revision 1.24
diff -u -p -r1.24 times.cc
--- times.cc	2002/01/14 20:39:59	1.24
+++ times.cc	2002/01/18 12:48:14
@@ -24,6 +24,7 @@ details. */
 #include "sync.h"
 #include "sigproc.h"
 #include "pinfo.h"
+#include <ctype.h>
 
 #define FACTOR (0x19db1ded53e8000LL)
 #define NSPERSEC 10000000LL
@@ -569,3 +570,401 @@ void
 cygwin_tzset ()
 {
 }
+
+static const char *abb_weekdays[] = {
+    "Sun",
+    "Mon",
+    "Tue",
+    "Wed",
+    "Thu",
+    "Fri",
+    "Sat",
+    NULL
+};
+
+static const char *full_weekdays[] = {
+    "Sunday",
+    "Monday",
+    "Tuesday",
+    "Wednesday",
+    "Thursday",
+    "Friday",
+    "Saturday",
+    NULL
+};
+
+static const char *abb_month[] = {
+    "Jan",
+    "Feb",
+    "Mar",
+    "Apr",
+    "May",
+    "Jun",
+    "Jul",
+    "Aug",
+    "Sep",
+    "Oct",
+    "Nov",
+    "Dec",
+    NULL
+};
+
+static const char *full_month[] = {
+    "January",
+    "February",
+    "Mars",
+    "April",
+    "May",
+    "June",
+    "July",
+    "August",
+    "September",
+    "October",
+    "November",
+    "December",
+    NULL,
+};
+
+static const char *ampm[] = {
+    "am",
+    "pm",
+    NULL
+};
+
+/*
+ * tm_year is relative this year 
+ */
+const int tm_year_base = 1900;
+
+/*
+ * Return TRUE iff `year' was a leap year.
+ * Needed for strptime.
+ */
+static int
+is_leap_year (int year)
+{
+    return (year % 4) == 0 && ((year % 100) != 0 || (year % 400) == 0);
+}
+
+/* Needed for strptime. */
+static int
+match_string (const char **buf, const char **strs)
+{
+    int i = 0;
+
+    for (i = 0; strs[i] != NULL; ++i) {
+	int len = strlen (strs[i]);
+
+	if (strncasecmp (*buf, strs[i], len) == 0) {
+	    *buf += len;
+	    return i;
+	}
+    }
+    return -1;
+}
+
+/* Needed for strptime. */
+static int
+first_day (int year)
+{
+    int ret = 4;
+
+    for (; year > 1970; --year)
+	ret = (ret + 365 + is_leap_year (year) ? 1 : 0) % 7;
+    return ret;
+}
+
+/*
+ * Set `timeptr' given `wnum' (week number [0, 53])
+ * Needed for strptime
+ */
+
+static void
+set_week_number_sun (struct tm *timeptr, int wnum)
+{
+    int fday = first_day (timeptr->tm_year + tm_year_base);
+
+    timeptr->tm_yday = wnum * 7 + timeptr->tm_wday - fday;
+    if (timeptr->tm_yday < 0) {
+	timeptr->tm_wday = fday;
+	timeptr->tm_yday = 0;
+    }
+}
+
+/*
+ * Set `timeptr' given `wnum' (week number [0, 53])
+ * Needed for strptime
+ */
+
+static void
+set_week_number_mon (struct tm *timeptr, int wnum)
+{
+    int fday = (first_day (timeptr->tm_year + tm_year_base) + 6) % 7;
+
+    timeptr->tm_yday = wnum * 7 + (timeptr->tm_wday + 6) % 7 - fday;
+    if (timeptr->tm_yday < 0) {
+	timeptr->tm_wday = (fday + 1) % 7;
+	timeptr->tm_yday = 0;
+    }
+}
+
+/*
+ * Set `timeptr' given `wnum' (week number [0, 53])
+ * Needed for strptime
+ */
+static void
+set_week_number_mon4 (struct tm *timeptr, int wnum)
+{
+    int fday = (first_day (timeptr->tm_year + tm_year_base) + 6) % 7;
+    int offset = 0;
+
+    if (fday < 4)
+	offset += 7;
+
+    timeptr->tm_yday = offset + (wnum - 1) * 7 + timeptr->tm_wday - fday;
+    if (timeptr->tm_yday < 0) {
+	timeptr->tm_wday = fday;
+	timeptr->tm_yday = 0;
+    }
+}
+
+/* strptime: roken */
+extern "C"
+char *
+strptime (const char *buf, const char *format, struct tm *timeptr)
+{
+    char c;
+
+    for (; (c = *format) != '\0'; ++format) {
+	char *s;
+	int ret;
+
+	if (isspace (c)) {
+	    while (isspace (*buf))
+		++buf;
+	} else if (c == '%' && format[1] != '\0') {
+	    c = *++format;
+	    if (c == 'E' || c == 'O')
+		c = *++format;
+	    switch (c) {
+	    case 'A' :
+		ret = match_string (&buf, full_weekdays);
+		if (ret < 0)
+		    return NULL;
+		timeptr->tm_wday = ret;
+		break;
+	    case 'a' :
+		ret = match_string (&buf, abb_weekdays);
+		if (ret < 0)
+		    return NULL;
+		timeptr->tm_wday = ret;
+		break;
+	    case 'B' :
+		ret = match_string (&buf, full_month);
+		if (ret < 0)
+		    return NULL;
+		timeptr->tm_mon = ret;
+		break;
+	    case 'b' :
+	    case 'h' :
+		ret = match_string (&buf, abb_month);
+		if (ret < 0)
+		    return NULL;
+		timeptr->tm_mon = ret;
+		break;
+	    case 'C' :
+		ret = strtol (buf, &s, 10);
+		if (s == buf)
+		    return NULL;
+		timeptr->tm_year = (ret * 100) - tm_year_base;
+		buf = s;
+		break;
+	    case 'c' :
+		abort ();
+	    case 'D' :		/* %m/%d/%y */
+		s = strptime (buf, "%m/%d/%y", timeptr);
+		if (s == NULL)
+		    return NULL;
+		buf = s;
+		break;
+	    case 'd' :
+	    case 'e' :
+		ret = strtol (buf, &s, 10);
+		if (s == buf)
+		    return NULL;
+		timeptr->tm_mday = ret;
+		buf = s;
+		break;
+	    case 'H' :
+	    case 'k' :
+		ret = strtol (buf, &s, 10);
+		if (s == buf)
+		    return NULL;
+		timeptr->tm_hour = ret;
+		buf = s;
+		break;
+	    case 'I' :
+	    case 'l' :
+		ret = strtol (buf, &s, 10);
+		if (s == buf)
+		    return NULL;
+		if (ret == 12)
+		    timeptr->tm_hour = 0;
+		else
+		    timeptr->tm_hour = ret;
+		buf = s;
+		break;
+	    case 'j' :
+		ret = strtol (buf, &s, 10);
+		if (s == buf)
+		    return NULL;
+		timeptr->tm_yday = ret - 1;
+		buf = s;
+		break;
+	    case 'm' :
+		ret = strtol (buf, &s, 10);
+		if (s == buf)
+		    return NULL;
+		timeptr->tm_mon = ret - 1;
+		buf = s;
+		break;
+	    case 'M' :
+		ret = strtol (buf, &s, 10);
+		if (s == buf)
+		    return NULL;
+		timeptr->tm_min = ret;
+		buf = s;
+		break;
+	    case 'n' :
+		if (*buf == '\n')
+		    ++buf;
+		else
+		    return NULL;
+		break;
+	    case 'p' :
+		ret = match_string (&buf, ampm);
+		if (ret < 0)
+		    return NULL;
+		if (timeptr->tm_hour == 0) {
+		    if (ret == 1)
+			timeptr->tm_hour = 12;
+		} else
+		    timeptr->tm_hour += 12;
+		break;
+	    case 'r' :		/* %I:%M:%S %p */
+		s = strptime (buf, "%I:%M:%S %p", timeptr);
+		if (s == NULL)
+		    return NULL;
+		buf = s;
+		break;
+	    case 'R' :		/* %H:%M */
+		s = strptime (buf, "%H:%M", timeptr);
+		if (s == NULL)
+		    return NULL;
+		buf = s;
+		break;
+	    case 'S' :
+		ret = strtol (buf, &s, 10);
+		if (s == buf)
+		    return NULL;
+		timeptr->tm_sec = ret;
+		buf = s;
+		break;
+	    case 't' :
+		if (*buf == '\t')
+		    ++buf;
+		else
+		    return NULL;
+		break;
+	    case 'T' :		/* %H:%M:%S */
+	    case 'X' :
+		s = strptime (buf, "%H:%M:%S", timeptr);
+		if (s == NULL)
+		    return NULL;
+		buf = s;
+		break;
+	    case 'u' :
+		ret = strtol (buf, &s, 10);
+		if (s == buf)
+		    return NULL;
+		timeptr->tm_wday = ret - 1;
+		buf = s;
+		break;
+	    case 'w' :
+		ret = strtol (buf, &s, 10);
+		if (s == buf)
+		    return NULL;
+		timeptr->tm_wday = ret;
+		buf = s;
+		break;
+	    case 'U' :
+		ret = strtol (buf, &s, 10);
+		if (s == buf)
+		    return NULL;
+		set_week_number_sun (timeptr, ret);
+		buf = s;
+		break;
+	    case 'V' :
+		ret = strtol (buf, &s, 10);
+		if (s == buf)
+		    return NULL;
+		set_week_number_mon4 (timeptr, ret);
+		buf = s;
+		break;
+	    case 'W' :
+		ret = strtol (buf, &s, 10);
+		if (s == buf)
+		    return NULL;
+		set_week_number_mon (timeptr, ret);
+		buf = s;
+		break;
+	    case 'x' :
+		s = strptime (buf, "%Y:%m:%d", timeptr);
+		if (s == NULL)
+		    return NULL;
+		buf = s;
+		break;
+	    case 'y' :
+		ret = strtol (buf, &s, 10);
+		if (s == buf)
+		    return NULL;
+		if (ret < 70)
+		    timeptr->tm_year = 100 + ret;
+		else
+		    timeptr->tm_year = ret;
+		buf = s;
+		break;
+	    case 'Y' :
+		ret = strtol (buf, &s, 10);
+		if (s == buf)
+		    return NULL;
+		timeptr->tm_year = ret - tm_year_base;
+		buf = s;
+		break;
+	    case 'Z' :
+		abort ();
+	    case '\0' :
+		--format;
+		/* FALLTHROUGH */
+	    case '%' :
+		if (*buf == '%')
+		    ++buf;
+		else
+		    return NULL;
+		break;
+	    default :
+		if (*buf == '%' || *++buf == c)
+		    ++buf;
+		else
+		    return NULL;
+		break;
+	    }
+	} else {
+	    if (*buf == c)
+		++buf;
+	    else
+		return NULL;
+	}
+    }
+    return (char *)buf;
+}
\ No newline at end of file