Description: use COLUMNS environment if TIOCGWINSZ fails
Author: Craig Small <csmall@debian.org>
Index: b/w.c
===================================================================
--- a/w.c	2009-11-24 21:00:39.000000000 +1100
+++ b/w.c	2009-11-24 21:00:43.000000000 +1100
@@ -241,10 +241,10 @@
 
 /***** main */
 int main(int argc, char **argv) {
-    char *user = NULL;
+    char *user = NULL, *p;
     utmp_t *u;
     struct winsize win;
-    int header=1, longform=1, from=1, args, maxcmd=80, ch;
+    int header=1, longform=1, from=1, args, maxcmd, ch;
 
 #ifndef W_SHOWFROM
     from = 0;
@@ -277,6 +277,10 @@
 
     if (ioctl(1, TIOCGWINSZ, &win) != -1 && win.ws_col > 0)
 	maxcmd = win.ws_col;
+    else if (p = getenv("COLUMNS"))
+        maxcmd = atoi(p);
+    else
+	maxcmd = 80;
     if (maxcmd < 71) {
 	fprintf(stderr, "%d column window is too narrow\n", maxcmd);
 	exit(1);