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escape \n and \r, too

This commit is contained in:
provos 2003-08-01 06:15:02 +00:00
parent 1f7a4f40e6
commit 5edbacc575
2 changed files with 26 additions and 6 deletions
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16
bin/systrace/lex.l
View File

@ -1,4 +1,4 @@
/* $NetBSD: lex.l,v 1.10 2003/06/03 01:20:06 provos Exp $ */
/* $NetBSD: lex.l,v 1.11 2003/08/01 06:15:02 provos Exp $ */
/* $OpenBSD: lex.l,v 1.9 2002/08/04 04:15:50 provos Exp $ */
/*
@ -34,7 +34,7 @@
%{
#include <sys/cdefs.h>
__RCSID("$NetBSD: lex.l,v 1.10 2003/06/03 01:20:06 provos Exp $");
__RCSID("$NetBSD: lex.l,v 1.11 2003/08/01 06:15:02 provos Exp $");
#include <sys/types.h>
#include <sys/tree.h>
@ -116,6 +116,18 @@ as { return AS; }
quoteescape = 0;
}
<quote>[^\\\"]+ {
if (quoteescape) {
switch (yytext[0]) {
case 'n':
yytext[0] = '\n';
break;
case 'r':
yytext[0] = '\r';
break;
default:
break;
}
}
strlcat(quotestr, yytext, sizeof(quotestr));
quoteescape = 0;
}

16
bin/systrace/util.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: util.c,v 1.4 2003/06/03 01:20:06 provos Exp $ */
/* $NetBSD: util.c,v 1.5 2003/08/01 06:15:02 provos Exp $ */
/* $OpenBSD: util.c,v 1.8 2002/07/19 14:38:58 itojun Exp $ */
/*
* Copyright 2002 Niels Provos <provos@citi.umich.edu>
@ -30,7 +30,7 @@
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__RCSID("$NetBSD: util.c,v 1.4 2003/06/03 01:20:06 provos Exp $");
__RCSID("$NetBSD: util.c,v 1.5 2003/08/01 06:15:02 provos Exp $");
#include <sys/types.h>
#include <string.h>
@ -47,15 +47,23 @@ strescape(char *str)
int i, p;
for (p = i = 0; i < strlen(str) && p < sizeof(escape) - 1; i++) {
switch (str[i]) {
char a = str[i];
switch (a) {
case '\r':
a = 'r';
goto doescape;
case '\n':
a = 'n';
goto doescape;
case '\\':
case '\"':
doescape:
escape[p++] = '\\';
if (p >= sizeof(escape) - 1)
errx(1, "%s: string too long: %s",
__func__, str);
default:
escape[p++] = str[i];
escape[p++] = a;
}
}