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authorErwin Hoffmann <feh@fehcom.de>2024-01-14 17:55:54 +0100
committerErwin Hoffmann <feh@fehcom.de>2024-01-14 17:55:54 +0100
commita293489ee83c8b05d845a162dc2a4de026f3775d (patch)
treed50ab15afde698ad2d32bfc251753e5e89204f25 /sqmail-4.3.07/src/qmail-postgrey.c
s/qmail 4.3.07
Diffstat (limited to 'sqmail-4.3.07/src/qmail-postgrey.c')
-rw-r--r--sqmail-4.3.07/src/qmail-postgrey.c105
1 files changed, 105 insertions, 0 deletions
diff --git a/sqmail-4.3.07/src/qmail-postgrey.c b/sqmail-4.3.07/src/qmail-postgrey.c
new file mode 100644
index 0000000..bd88389
--- /dev/null
+++ b/sqmail-4.3.07/src/qmail-postgrey.c
@@ -0,0 +1,105 @@
+#include <unistd.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include "stralloc.h"
+#include "logmsg.h"
+#include "ip.h"
+#include "case.h"
+#include "str.h"
+#include "exit.h"
+#include "scan.h"
+#include "timeout.h"
+#include "timeoutconn.h"
+#include "socket_if.h"
+
+#define WHO "qmail-postgrey"
+
+#define CT 10 /* Connect timeout */
+#define WT 10 /* Write timeout */
+#define RT 10 /* Read timeout */
+
+unsigned int port = 60000; /* default port */
+
+int main(int argc, char **argv)
+{
+ struct ip4_address ip4;
+ struct ip6_address ip6;
+ stralloc query = {0};
+ char buf[64];
+ char *remoteip = 0;
+ char *netif = 0;
+ uint32 ifidx = 0;
+ int pgfd;
+ int i, j, r;
+
+ if (argc != 6)
+ logmsg(WHO,100,USAGE,"qmail-postgrey ip%ifidx;port sender recipient client_address client_name");
+
+ remoteip = argv[1];
+ i = str_chr(remoteip,':');
+ if (remoteip[i] == ':') {
+ j = str_chr(remoteip,'%'); /* IF index */
+ if (remoteip[j] == '%') {
+ remoteip[j] = 0;
+ netif = &remoteip[j + 1];
+ ifidx = socket_getifidx(netif);
+ }
+ if (!ip6_scan(remoteip,(char *)&ip6.d))
+ logmsg(WHO,111,FATAL,B("No valid IPv6 address provided: ",remoteip));
+ pgfd = socket(AF_INET6,SOCK_STREAM,0);
+ if (pgfd == -1)
+ logmsg(WHO,111,FATAL,"Can't bind to IPv6 socket.");
+ r = timeoutconn6(pgfd,(char *)&ip6.d,port,CT,ifidx);
+ } else {
+ if (!ip4_scan(remoteip,(char *)&ip4.d))
+ logmsg(WHO,111,FATAL,B("No valid IPv6 address provided: ",remoteip));
+ pgfd = socket(AF_INET,SOCK_STREAM,0);
+ if (pgfd == -1)
+ logmsg(WHO,111,FATAL,"Can't bind to IPv4 socket.");
+ r = timeoutconn4(pgfd,(char *)&ip4.d,port,CT);
+ }
+ if (r != 0) {
+ if (errno == ETIMEDOUT)
+ close(pgfd);
+ logmsg(WHO,111,FATAL,B("Can't communicate with postgrey server: ",remoteip));
+ _exit(1);
+ }
+
+ /* Provide SMTP connect vector to postgrey server */
+
+ if (!stralloc_copys(&query,"request=smtpd_access_policy\nclient_address=")) _exit(1);
+ if (!stralloc_cats(&query,argv[4])) _exit(1);
+ if (!stralloc_cats(&query,"\nclient_name=")) _exit(1);
+ if (!stralloc_cats(&query,argv[5])) _exit(1);
+ if (!stralloc_cats(&query,"\nsender=")) _exit(1);
+ if (!stralloc_cats(&query,argv[2])) _exit(1);
+ if (!stralloc_cats(&query,"\nrecipient=")) _exit(1);
+ if (!stralloc_cats(&query,argv[3])) _exit(1);
+ if (!stralloc_cats(&query,"\n\n")) _exit(1);
+
+ do {
+ r = timeoutwrite(WT,pgfd,query.s,query.len);
+ } while (r == -1 && errno == EINTR);
+
+ if (r != query.len) { close(pgfd); _exit(1); }
+
+ /* Read response */
+
+ do {
+ r = timeoutread(RT,pgfd,buf,sizeof(buf));
+ } while (r == -1 && errno == EINTR);
+
+ if (r == -1) { close(pgfd); _exit(1); }
+ close(pgfd);
+
+// logmsg(WHO,0,INFO,buf);
+
+ if (r >= 12)
+ if (!case_diffb(buf,12,"action=dunno")) _exit(0);
+ if (r >= 14)
+ if (!case_diffb(buf,14,"action=prepend")) _exit(0);
+ if (r >= 22)
+ if (!case_diffb(buf,22,"action=defer_if_permit")) _exit(10);
+
+ exit(1);
+}