1 files changed, 0 insertions, 368 deletions
diff --git a/sqmail-4.3.07/src/qmail-dkverify.c b/sqmail-4.3.07/src/qmail-dkverify.c
deleted file mode 100644
index 2cfe00a..0000000
--- a/sqmail-4.3.07/src/qmail-dkverify.c
+++ /dev/null
@@ -1,368 +0,0 @@
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <sys/socket.h>
-#include "sig.h"
-#include "stralloc.h"
-#include "buffer.h"
-#include "error.h"
-#include "auto_qmail.h"
-#include "str.h"
-#include "exit.h"
-#include "uint_t.h"
-#include "fd.h"
-#include "open.h"
-#include "fmt.h"
-#include "fmtqfn.h"
-#include "readwrite.h"
-#include "getln.h"
-#include "qmail.h"
-#include "wait.h"
-#include "byte.h"
-#include "case.h"
-#include "control.h"
-#include "pathexec.h"
-#include "env.h"
-#include "logmsg.h"
-
-#define WHO "qmail-dkverify"
-
-/** @file  qmail-dkverify.c 
-    @brief stub routine for DKIM signature verification and indication in received message
-
-    Steps:
-    ------
-    a) Store message with CRLF
-    b) Get DKIM signature from message - if given:
-    c)   Call qmail-dkim for verification
-    d)   Include results as appended header
-    e) Queue the message for processing
-
-  */
-
-char inbuf[BUFSIZE_LINE];  
-buffer bi = BUFFER_INIT(read,0,inbuf,sizeof(inbuf));    // read buffer 
-char outbuf[BUFSIZE_MESS];
-buffer bo = BUFFER_INIT(write,1,outbuf,sizeof(outbuf)); // output message 
-
-void die(int e) { _exit(e); }
-void die_pipe(char *fn) { unlink(fn); die(53); };
-void die_write(char *fn) { unlink(fn); die(53); };
-void die_read() { die(54); };
-void out(char *s) { if (buffer_puts(&bo,s) == -1) _exit(111); }
-void zero() { if (buffer_put(&bo,"\0",1) == -1) _exit(111); }
-void zerodie() { zero(); buffer_flush(&bo); _exit(111); }
-
-void temp_nomem() 
-{
-  out("ZOut of memory. (#4.3.0)\n");
-  zerodie();
-}
-void temp_chdir() 
-{
-  out("ZUnable to switch to target directory. (#4.3.0)\n");
-  zerodie();
-}
-void temp_create() 
-{
-  out("ZUnable to create DKIM stage file. (#4.3.0)\n");
-  zerodie();
-}
-void temp_unlink() 
-{
-  out("ZUnable to unlink DKIM stage file. (#4.3.0)\n");
-  zerodie();
-}
-void temp_read()
-{
-  out("ZUnable to read message. (#4.3.0)\n");
-  zerodie();
-}
-void temp_socket()
-{
-  out("ZUnable to crate socket pair. (#4.3.0)\n");
-  zerodie();
-}
-void temp_control()
-{
-  out("ZUnable to read control files. (#4.3.0)\n");
-  zerodie();
-}
-
-static stralloc me = {0};
-static stralloc senddomain = {0};
-static stralloc dkheader = {0};
-static stralloc fndkin = {0};
-static stralloc fndkout = {0};
-static stralloc result = {0};
- 
-void fnmake_dkim(unsigned long id) 
-{ 
-  fndkin.len = fmtqfn(fndkin.s,"queue/dkim/",id,1); 
-  id += id;
-  fndkout.len = fmtqfn(fndkout.s,"queue/dkim/",id,1); 
-} 
-
-void dkim_stage()
-{
-  int r;
-  int fd;
-  int in, out;
-  struct stat st;
-  char tmpbuf[BUFSIZE_MESS + 2];
-
-  if (!stralloc_ready(&fndkin,FMTQFN)) temp_nomem();
-  if (!stralloc_ready(&fndkout,FMTQFN)) temp_nomem();
-
-  fnmake_dkim(getpid());  // pre-staging
-  fd = open_excl(fndkin.s);
-  if (fd == -1) die_write(fndkin.s);
-
-  buffer_init(&bi,read,0,inbuf,sizeof(inbuf));
-  buffer_init(&bo,write,fd,outbuf,sizeof(outbuf));
-
-  while((r = buffer_get(&bi,inbuf,sizeof(inbuf)))) {  // read into buffer
-    if (r == -1) temp_read();
-
-    for (in = out = 0; in < r; in++) {                // reconstruct CRLF (ok)
-      if (inbuf[in] != '\n') {
-        tmpbuf[out++] = inbuf[in];
-      } else {
-        tmpbuf[out++] = '\r';
-        tmpbuf[out++] = '\n';
-      }
-    }
-    if (out) buffer_put(&bo,tmpbuf,out);
-  }
-
-  if (buffer_flush(&bo) == -1) die(51);
-  if (fstat(fd,&st) == -1) die_write(fndkin.s);
-  if (fsync(fd) == -1) die_write(fndkin.s);
-  if (close(fd) == -1) die_write(fndkin.s);
-}
-
-int mess_dkim()
-{
-  stralloc line = {0};
-  int match;
-  int fd;
-  int at = 0;
-  int ket = 0;
-  int end = 0;
-  int len = 0;
-  int r = 0;
-  int i;
-
-  fd = open_read(fndkin.s);
-  if (fd == -1) die_read(); 
-  buffer_init(&bi,read,fd,inbuf,sizeof(inbuf));
-
-  if (!stralloc_copys(&senddomain,"")) temp_nomem();
- 
-  for (;;) {
-    if (getln(&bi,&line,&match,'\n') == -1) temp_read();
-    if (case_starts(line.s,"DKIM-Signature: ")) r = 1;
-    if (r == 1) { 
-      if (case_starts(line.s,"From: ")) {        // fallback: From
-        at = str_chr(line.s,'@');
-        if (at < line.len) {
-          end = str_chr(line.s,'\n');            // From: user@senddomain\n
-          ket = str_chr(line.s,'>');             // From: User <user@senddomain>
-          len = (ket < end) ? ket : end;
-          if (!stralloc_copyb(&senddomain,line.s + at + 1,len - at - 1)) temp_nomem();
-          r = 2;
-        }
-      }
-      for (i = 0; i < line.len; ++i) {           // d=domain.tld
-        if (*(line.s + i) == '=' && *(line.s + i - 1) == 'd') {
-          ++i;                                   // gotcha
-          while (*(line.s + i) != ';') {
-            if (!stralloc_catb(&senddomain,line.s + i,1)) temp_nomem();
-            i++;
-            r = 3;
-          }
-        }
-      }
-    }
-    if (r >= 2 || !match) break;
-  }
-  if (senddomain.len < 2) 
-    if (!stralloc_copys(&senddomain,"unknown")) temp_nomem();
-  if (!stralloc_0(&senddomain)) temp_nomem();
-
-  return r;
-}
-
-int dkim_verify()
-{
-  int child;
-  int wstat;
-  char *(args[6]);
-  int r = -1;
-
-  args[0] = "qmail-dkim";
-  args[1] = "-V";
-  args[2] = fndkin.s;
-  args[3] = "none";
-  args[4] = fndkout.s;
-  args[5] = 0;
-
-  if (!(child = fork())) { 
-    pathexec(args);
-    if (errno) _exit(111);
-    _exit(100);
-  }
-
-  wait_pid(&wstat,child);
-  if (wait_crashed(wstat)) return 1;
-
-  switch (r = wait_exitcode(wstat)) {
-    case 10: return 1;
-    default: return 0;
-  }
-}
-
-int dkim_result(const char *me)
-{
-  int max = 64;
-  int fd;
-  int j;
-  char ch;
-  int r = 0; 
-
-  if (!stralloc_copys(&result,"")) temp_nomem();
-
-  if ((fd = open_read(fndkout.s)) == -1) return 0; // nothing to read
-  while ((r = read(fd,inbuf,sizeof(inbuf))) > 0) 
-    if (!stralloc_catb(&result,inbuf,r)) temp_nomem();
-
-  if (!stralloc_0(&result)) temp_nomem();
-
-  if (result.len > 2) {
-    if (case_starts(result.s,"pass")) r = 0;
-    if (case_starts(result.s,"fail")) r = 35;
-  } else
-    if (!stralloc_copys(&result,"unknown")) temp_nomem();
-
-  if (!stralloc_copys(&dkheader,"X-Authentication-Results: ")) temp_nomem();
-  if (!stralloc_cats(&dkheader,senddomain.s)) temp_nomem();
-  if (!stralloc_cats(&dkheader,"; dkim=")) temp_nomem();
-
-  for (j = 0; j < result.len; j++) {
-    ch = result.s[j];
-    if (ch == '\r' || ch == '\n' || ch == '\0') continue;
-    if (j <= max) if (!stralloc_catb(&dkheader,&ch,1)) temp_nomem();
-    if (ch == ' ' && (j > max)) {
-      if (!stralloc_cats(&dkheader,"\n  ")) temp_nomem();
-      max += max;
-    }
-  }
-
-  if (!stralloc_cats(&dkheader,"; ")) temp_nomem();
-  if (!stralloc_cats(&dkheader,me)) temp_nomem();
-  if (!stralloc_0(&dkheader)) temp_nomem();
-
-  return r;
-}
-
-int qmail_queue() 
-{
-  int fd;
-  int r;
-  int child;
-  int wstat;
-  int pi[2];
-  char *(args[2]);
-  char tmpbuf[BUFSIZE_MESS];
-  int in, out;
-
-  if (pipe(pi) == -1) die_pipe(fndkin.s);
-
-  args[0] = "qmail-queue";
-  args[1] = 0;
-
-  switch (child = vfork()) {
-    case -1: 
-      close(pi[0]); close(pi[1]); 
-      die_write(fndkin.s); 
-    case  0: 
-      close(pi[1]);
-      if (fd_move(0,pi[0]) == -1) die_pipe(fndkin.s);
-      sig_pipedefault();
-      pathexec(args);
-      if (errno) _exit(111);
-      _exit(100);
-  }
-  close(pi[0]);
-
-  buffer_init(&bo,write,pi[1],outbuf,sizeof(outbuf));
-
-  if (dkheader.len > 2) {                        // write DKIM header
-    if (buffer_put(&bo,dkheader.s,dkheader.len - 1) == -1) die_write(fndkout.s);
-    if (buffer_put(&bo,"\n",1) == -1) die_write(fndkout.s);
-    if (buffer_flush(&bo) == -1) die_write(fndkout.s);
-  }
-
-  /* read/write message; we need to remove the CR (ok) */
-
-  if ((fd = open_read(fndkin.s)) == -1) die_read();
-  while ((r = read(fd,tmpbuf,sizeof(tmpbuf))) > 0) {
-    for (in = 0, out = 0; in < r; ++in) {
-      if (tmpbuf[in] == '\r') {
-        buffer_put(&bo,&tmpbuf[out],in - out);
-        out = in + 1;                            // \n to follow
-      }
-    }
-  }
-
-  if (buffer_flush(&bo) == -1) die_write(fndkin.s);
-  close(pi[1]);
-
-  wait_pid(&wstat,child);
-  if (wait_crashed(wstat)) return 1;
-
-  switch (r = wait_exitcode(wstat)) {
-    case 10: return 1;
-    default: return 0;
-  }
-
-  return 0;
-}
-
-void dkim_unlink()
-{
-  if (unlink(fndkin.s) == -1)
-    if (errno != ENOENT) temp_unlink();
-  if (unlink(fndkout.s) == -1)
-    if (errno != ENOENT) temp_unlink();
-}
-
-int main()
-{
-  int r = 0;
-  char *mode = 0;
-
-  umask(033);
-  if (chdir(auto_qmail) == -1) temp_chdir();
-  if (control_init() == -1) temp_control();
-  if (control_readline(&me,"control/me") == -1) temp_control();
-  if (!stralloc_0(&me)) temp_nomem();
-
-  dkim_stage();
-
-  if (mess_dkim()) {
-    dkim_verify(); 
-    r = dkim_result(me.s);
-  }
-
-  /* we are done: call qmail-queue */
-
-  mode = env_get("DKIM");
-  if (!mode || *mode != '+') r = 0;
-
-  qmail_queue();
-  dkim_unlink();
-
-  _exit(r);
-}