awk: Update to 20240728 bsd-feature 3319c34a8713 (add mktime)

Jul 28, 2024
	Fixed readcsvrec resize segfault when reading csv records longer
	than 8k. Thanks to Ozan Yigit.
	mktime() added to bsd-features branch. Thanks to Todd Miller.

FIXES

@@ -25,6 +25,11 @@ THIS SOFTWARE.
 This file lists all bug fixes, changes, etc., made since the 
 second edition of the AWK book was published in September 2023.
 
+Jul 28, 2024
+	Fixed readcsvrec resize segfault when reading csv records longer
+	than 8k. Thanks to Ozan Yigit.
+	mktime() added to bsd-features branch. Thanks to Todd Miller.
+
 Jun 23, 2024
 	Fix signal for system-status test. Thanks to Tim van der Molen.
 	Rewrite if-else chain as switch. Thanks to Andrew Sukach.

awk.h

@@ -162,6 +162,7 @@ extern Cell	*symtabloc;	/* SYMTAB */
 #define FRSHIFT	20
 #define FSYSTIME	21
 #define FSTRFTIME	22
+#define FMKTIME	23
 
 /* Node:  parse tree is made of nodes, with Cell's at bottom */
 

b.c

@@ -616,7 +616,7 @@ static void resize_gototab(fa *f, int state)
 	if (p == NULL)
 		overflo(__func__);
 
-	// need to initialized the new memory to zero
+	// need to initialize the new memory to zero
 	size_t orig_size = f->gototab[state].allocated;		// 2nd half of new mem is this size
 	memset(p + orig_size, 0, orig_size * sizeof(gtte));	// clean it out
 

lex.c

@@ -74,6 +74,7 @@ const Keyword keywords[] = {	/* keep sorted: binary searched */
 	{ "log",	FLOG,		BLTIN },
 	{ "lshift",	FLSHIFT,	BLTIN },
 	{ "match",	MATCHFCN,	MATCHFCN },
+	{ "mktime",	FMKTIME,	BLTIN },
 	{ "next",	NEXT,		NEXT },
 	{ "nextfile",	NEXTFILE,	NEXTFILE },
 	{ "or",		FFOR,		BLTIN },

lib.c

@@ -231,7 +231,7 @@ int readrec(char **pbuf, int *pbufsize, FILE *inf, bool newflag)	/* read one rec
 	char *rs = getsval(rsloc);
 
 	if (CSV) {
-		c = readcsvrec(pbuf, pbufsize, inf, newflag);
+		c = readcsvrec(&buf, &bufsize, inf, newflag);
 		isrec = (c == EOF && rr == buf) ? false : true;
 	} else if (*rs && rs[1]) {
 		bool found;

main.c

@@ -22,7 +22,7 @@ ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
 THIS SOFTWARE.
 ****************************************************************/
 
-const char	*version = "version 20240623";
+const char	*version = "version 20240728";
 
 #define DEBUG
 #include <stdio.h>

run.c

@@ -2069,7 +2069,7 @@ Cell *bltin(Node **a, int n)	/* builtin functions. a[0] is type, a[1] is arg lis
 	FILE *fp;
 	int status = 0;
 	time_t tv;
-	struct tm *tm;
+	struct tm *tm, tmbuf;
 	int estatus = 0;
 
 	t = ptoi(a[0]);
@@ -2223,6 +2223,26 @@ Cell *bltin(Node **a, int n)	/* builtin functions. a[0] is type, a[1] is arg lis
 		else
 			u = fflush(fp);
 		break;
+	case FMKTIME:
+		memset(&tmbuf, 0, sizeof(tmbuf));
+		tm = &tmbuf;
+		t = sscanf(getsval(x), "%d %d %d %d %d %d %d",
+		    &tm->tm_year, &tm->tm_mon, &tm->tm_mday, &tm->tm_hour,
+		    &tm->tm_min, &tm->tm_sec, &tm->tm_isdst);
+		switch (t) {
+		case 6:
+			tm->tm_isdst = -1;	/* let mktime figure it out */
+			/* FALLTHROUGH */
+		case 7:
+			tm->tm_year -= 1900;
+			tm->tm_mon--;
+			u = mktime(tm);
+			break;
+		default:
+			u = -1;
+			break;
+		}
+		break;
 	case FSYSTIME:
 		u = time((time_t *) 0);
 		break;