From 89b7b67a13ebb7965cc7f13ad0595e2194a2d34c Mon Sep 17 00:00:00 2001
From: Jannis Hoffmann <jannis@fehcom.de>
Date: Wed, 3 Jul 2024 15:48:04 +0200
Subject: add sqmail-4.2.29a

---
 src/sendmail.c | 161 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 161 insertions(+)
 create mode 100644 src/sendmail.c

(limited to 'src/sendmail.c')

diff --git a/src/sendmail.c b/src/sendmail.c
new file mode 100644
index 0000000..69971e3
--- /dev/null
+++ b/src/sendmail.c
@@ -0,0 +1,161 @@
+#include <unistd.h>
+#include "getoptb.h"
+#include "buffer.h"
+#include "alloc.h"
+#include "auto_qmail.h"
+#include "exit.h"
+#include "env.h"
+#include "str.h"
+#include "logmsg.h"
+
+#define WHO "sendmail"
+
+void nomem()
+{
+  logmsg(WHO,111,FATAL,"out of memory\n");
+}
+
+void die_usage()
+{
+  logmsg(WHO,100,USAGE,"sendmail [ -t ] [ -fsender ] [ -Fname ] [ -bp ] [ -bs ] [ arg ... ]\n");
+}
+
+char *smtpdarg[] = { "bin/qmail-smtpd", 0 };
+
+void smtpd()
+{
+  if (!env_get("PROTO")) {
+    if (!env_puts("RELAYCLIENT=")) nomem();
+    if (!env_puts("DATABYTES=0")) nomem();
+    if (!env_puts("PROTO=TCP")) nomem();
+    if (!env_puts("TCP6LOCALIP=::1")) nomem();
+    if (!env_puts("TCPLOCALIP=127.0.0.1")) nomem();
+    if (!env_puts("TCPLOCALHOST=localhost")) nomem();
+    if (!env_puts("TCPREMOTEIP=127.0.0.1")) nomem();
+    if (!env_puts("TCP6REMOTEIP=::1")) nomem();
+    if (!env_puts("TCPREMOTEHOST=localhost")) nomem();
+    if (!env_puts("TCPREMOTEINFO=sendmail-bs")) nomem();
+  }
+  execv(*smtpdarg,smtpdarg);
+  logmsg(WHO,111,FATAL,"unable to run qmail-smtpd\n");
+}
+
+char *qreadarg[] = { "bin/qmail-qread", 0 };
+void mailq()
+{
+  execv(*qreadarg,qreadarg);
+  logmsg(WHO,111,FATAL,"unable to run qmail-qread\n");
+}
+
+void do_sender(const char *s)
+{
+  char *x;
+  int n;
+  int a;
+  int i;
+
+  env_unset("QMAILNAME");
+  env_unset("MAILNAME");
+  env_unset("NAME");
+  env_unset("QMAILHOST");
+  env_unset("MAILHOST");
+
+  n = str_len(s);
+  a = str_rchr(s,'@');
+  if (a == n)
+  {
+    env_put("QMAILUSER",s);
+    return;
+  }
+  env_put("QMAILHOST",s + a + 1);
+
+  x = (char *) alloc((a + 1) * sizeof(char));
+  if (!x) nomem();
+  for (i = 0; i < a; i++)
+    x[i] = s[i];
+  x[i] = 0;
+  env_put("QMAILUSER",x);
+  alloc_free(x);
+}
+
+int flagh;
+char *sender;
+
+int main(int argc, char **argv)
+{
+  int opt;
+  char **qiargv;
+  char **arg;
+  int i;
+ 
+  if (chdir(auto_qmail) == -1) {
+    buffer_putsflush(buffer_2,"sendmail: fatal: unable to switch to qmail home directory\n");
+    _exit(111);
+  }
+
+  flagh = 0;
+  sender = 0;
+  while ((opt = getopt(argc,argv,"vimte:f:p:o:B:F:EJxb:")) != opteof) {
+    switch (opt) {
+      case 'N': break; /* ignore DSN option */
+      case 'B': break;
+      case 't': flagh = 1; break;
+      case 'f': sender = optarg; break;
+      case 'F': if (!env_put("MAILNAME",optarg)) nomem(); break;
+      case 'p': break; /* could generate a Received line from optarg */
+      case 'v': break;
+      case 'i': break; /* what an absurd concept */
+      case 'x': break; /* SVR4 stupidity */
+      case 'm': break; /* twisted-paper-path blindness, incompetent design */
+      case 'e': break; /* qmail has only one error mode */
+      case 'o':
+        switch (optarg[0]) {
+          case 'd': break; /* qmail has only one delivery mode */
+          case 'e': break; /* see 'e' above */
+          case 'i': break; /* see 'i' above */
+          case 'm': break; /* see 'm' above */
+        }
+        break;
+      case 'E': case 'J': /* Sony NEWS-OS */
+        while (argv[optind][optpos]) ++optpos; /* skip optional argument */
+        break;
+      case 'b':
+        switch (optarg[0]) {
+          case 'm': break;
+          case 'p': mailq();
+          case 's': smtpd();
+          default: die_usage();
+        }
+        break;
+      default:
+        die_usage();
+    }
+  }
+  argc -= optind;
+  argv += optind;
+ 
+  if (str_equal(optprogname,"mailq"))
+    mailq();
+
+  if (str_equal(optprogname,"newaliases")) {
+    logmsg(WHO,100,FATAL,"please use fastforward/newaliases instead\n");
+  }
+
+  qiargv = (char **) alloc((argc + 10) * sizeof(char *));
+  if (!qiargv) nomem();
+ 
+  arg = qiargv;
+  *arg++ = "bin/qmail-inject";
+  *arg++ = (flagh ? "-H" : "-a");
+  if (sender) {
+    *arg++ = "-f";
+    *arg++ = sender;
+    do_sender(sender);
+  }
+  *arg++ = "--";
+  for (i = 0; i < argc; ++i) *arg++ = argv[i];
+  *arg = 0;
+ 
+  execv(*qiargv,qiargv);
+  logmsg(WHO,111,FATAL,"unable to run qmail-inject\n");
+}
-- 
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