svex

commit 485d36fbf2b426f1e6a909e8b7aedf6b8bed2568
parent a41bc0926d3d369009bf864cffafe83313b73c30
Author: zavok <an2qzavok@gmail.com>
Date:   Sun, 23 Aug 2020 20:20:36 +0300

brlb

Diffstat:
M
svex.c
 | 
15
+++++++--------

1 file changed, 7 insertions(+), 8 deletions(-)
diff --git a/svex.c b/svex.c
@@ -30,10 +30,11 @@ main (int argc, char *argv[])
 	ARGBEGIN{
 	default: usage();
 	} ARGEND
-	if (argc == 0) usage();
 	if (argc > 1) usage();
-	fname = argv[1];
-	load();
+	if (argc == 1) { 
+		fname = argv[0];
+		load();
+	}
 	return 0;
 }
 
@@ -41,14 +42,12 @@ void
 load(void)
 {
 	int f;
-	ulong n;
-	char b[1024], *bp;
-	bp = buff;
+	long n;
+	char b[1024];
 	f = open(fname, O_RDONLY);
 	while ((n = read(f, b, 1024)) > 0){
 		buff = realloc(buff, blen + n);
-		memcpy(bp, b, n);
-		bp += n;
+		memcpy(buff+blen, b, n);
 		blen += n;
 	}
 	close(f);