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72 lines
1.9 KiB
Diff
72 lines
1.9 KiB
Diff
--- a/dnsfilter.c
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+++ b/dnsfilter.c
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@@ -41,6 +41,7 @@ int inbuflen = 0;
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iopause_fd *inio;
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int flag0 = 1;
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+int opt_replace = 0;
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iopause_fd *io;
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int iolen;
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@@ -51,12 +52,16 @@ char name[DNS_NAME4_DOMAIN];
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void errout(int i)
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{
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int j;
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-
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- if (!stralloc_copys(&x[i].middle,":")) nomem();
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- if (!stralloc_cats(&x[i].middle,error_str(errno))) nomem();
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- for (j = 0;j < x[i].middle.len;++j)
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- if (x[i].middle.s[j] == ' ')
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- x[i].middle.s[j] = '-';
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+
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+ if (opt_replace)
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+ x[i].middle.len=0;
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+ else {
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+ if (!stralloc_copys(&x[i].middle,":")) nomem();
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+ if (!stralloc_cats(&x[i].middle,error_str(errno))) nomem();
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+ for (j = 0;j < x[i].middle.len;++j)
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+ if (x[i].middle.s[j] == ' ')
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+ x[i].middle.s[j] = '-';
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+ }
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}
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int main(int argc,char **argv)
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@@ -69,7 +74,7 @@ int main(int argc,char **argv)
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int j;
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int r;
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- while ((opt = getopt(argc,argv,"c:l:")) != opteof)
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+ while ((opt = getopt(argc,argv,"c:l:r")) != opteof)
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switch(opt) {
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case 'c':
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scan_ulong(optarg,&u);
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@@ -83,8 +88,11 @@ int main(int argc,char **argv)
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if (u > 1000000) u = 1000000;
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xmax = u;
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break;
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+ case 'r':
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+ opt_replace = 1;
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+ break;
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default:
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- strerr_die1x(111,"dnsfilter: usage: dnsfilter [ -c concurrency ] [ -l lines ]");
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+ strerr_die1x(111,"dnsfilter: usage: dnsfilter [ -c concurrency ] [ -l lines ] [-r]");
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}
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x = (struct line *) alloc(xmax * sizeof(struct line));
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@@ -140,8 +148,13 @@ int main(int argc,char **argv)
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else if (r == 1) {
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if (dns_name_packet(&x[i].middle,x[i].dt.packet,x[i].dt.packetlen) == -1)
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errout(i);
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- if (x[i].middle.len)
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- if (!stralloc_cats(&x[i].left,"=")) nomem();
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+ if (x[i].middle.len) {
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+ if (opt_replace) {
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+ if (!stralloc_copys(&x[i].left, "")) nomem();
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+ } else {
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+ if (!stralloc_cats(&x[i].left, "=")) nomem();
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+ }
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+ }
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x[i].flagactive = 0;
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--numactive;
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}
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