diff options
Diffstat (limited to 'sqmail-4.3.07/src/dnsfq.c')
-rw-r--r-- | sqmail-4.3.07/src/dnsfq.c | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/sqmail-4.3.07/src/dnsfq.c b/sqmail-4.3.07/src/dnsfq.c new file mode 100644 index 0000000..a174541 --- /dev/null +++ b/sqmail-4.3.07/src/dnsfq.c @@ -0,0 +1,64 @@ +#include <sys/types.h> +#include <sys/socket.h> +#include <unistd.h> +#include "buffer.h" +#include "stralloc.h" +#include "dnsresolv.h" +#include "dns.h" +#include "ip.h" +#include "exit.h" +#include "logmsg.h" + +#define WHO "dnsfq" +#define MAXCNAME 10 + +stralloc ca = {0}; +stralloc sa = {0}; +stralloc ia = {0}; + +int main(int argc,char **argv) +{ + int i, r; + char ip4str[IP4_FMT]; + char ip6str[IP6_FMT]; + + if (!argv[1]) + logmsg(WHO,100,USAGE,"dnsfq fqdn"); + + if (!stralloc_copys(&sa,argv[1])) + logmsg(WHO,111,FATAL,"out of memory"); + + DNS_INIT + buffer_put(buffer_1,sa.s,sa.len); + buffer_puts(buffer_1," "); + for (i = 0; i <= MAXCNAME; i++) { + if ((r = dns_cname(&ca,&sa)) < 0) _exit(1); + if (r > 0) { + if (!stralloc_copy(&sa,&ca)) + logmsg(WHO,111,FATAL,"out of memory"); + buffer_puts(buffer_1,"-> "); + buffer_put(buffer_1,sa.s,sa.len); + buffer_puts(buffer_1," "); + } + else break; + } + buffer_putsflush(buffer_1,"\n"); + + if ((i = dns_ip6(&ia,&sa)) > 0) { + for (i = 0; i + 16 <= ia.len; i += 16) { + if (ip6_isv4mapped(ia.s + i)) continue; + buffer_put(buffer_1,ip6str,ip6_fmt(ip6str,ia.s + i)); + buffer_puts(buffer_1,"\n"); + } + } + + if ((i = dns_ip4(&ia,&sa)) > 0) { + for (i = 0; i + 4 <= ia.len;i += 4) { + buffer_put(buffer_1,ip4str,ip4_fmt(ip4str,ia.s + i)); + buffer_puts(buffer_1,"\n"); + } + } + buffer_flush(buffer_1); + + _exit(0); +} |