use LINE_MAX, don't hardwire 2048

SCCS-vsn: usr.bin/comm/comm.c 5.3

diff --git a/usr/src/usr.bin/comm/comm.c b/usr/src/usr.bin/comm/comm.c
index 9453187..76894d9 100644 (file)
--- a/usr/src/usr.bin/comm/comm.c
+++ b/usr/src/usr.bin/comm/comm.c
@@ -25,26 +25,27 @@ char copyright[] =
 #endif /* not lint */
 
 #ifndef lint
 #endif /* not lint */
 
 #ifndef lint

-static char sccsid[] = "@(#)comm.c     5.2 (Berkeley) %G%";
+static char sccsid[] = "@(#)comm.c     5.3 (Berkeley) %G%";

 #endif /* not lint */
 
 #include <sys/file.h>
 #endif /* not lint */
 
 #include <sys/file.h>

+#include <limits.h>

 #include <stdio.h>
 
 #include <stdio.h>
 

-#define        MAXLINELEN      (2048 + 1)
+#define        MAXLINELEN      (LINE_MAX + 1)

 
 

-static char *tabs[] = { "", "\t", "\t\t" };
+char *tabs[] = { "", "\t", "\t\t" };

 
 main(argc,argv)
        int argc;
 
 main(argc,argv)
        int argc;

-       char **argv;
+       char *argv[];

 {
 {

-       extern int optind;
-       FILE *fp1, *fp2, *file();

        register int comp, file1done, file2done, read1, read2;
        register char *col1, *col2, *col3;
        int ch, flag1, flag2, flag3;
        register int comp, file1done, file2done, read1, read2;
        register char *col1, *col2, *col3;
        int ch, flag1, flag2, flag3;

+       FILE *fp1, *fp2, *file();

        char **p, line1[MAXLINELEN], line2[MAXLINELEN];
        char **p, line1[MAXLINELEN], line2[MAXLINELEN];

+       extern int optind;

 
        flag1 = flag2 = flag3 = 1;
        while ((ch = getopt(argc, argv, "-123")) != EOF)
 
        flag1 = flag2 = flag3 = 1;
        while ((ch = getopt(argc, argv, "-123")) != EOF)