Ejemplo n.º 1
0
int vmailmgr_autoconvert(void)
{
  int writefd = -1;
  ibuf reader;
  struct cdb_make writer;
  int error = 0;
  int readall = 0;
  int writerr = 0;
  if ((writefd = path_mktemp(pwfile, &tmppwfile)) != -1) {

    if (cdb_make_start(&writer, writefd) != 0)
      error = CVME_IO | CVME_FATAL;
    else {

      if (ibuf_open(&reader, pwfile, 0)) {

	uint32 end;
	struct stat st;
	if (fstat(reader.io.fd, &st) == 0
	    && fchmod(writefd, st.st_mode) == 0
	    && fchown(writefd, st.st_uid, st.st_gid) == 0
	    && read_start(&reader, &end)) {
	  while (ibuf_tell(&reader) < end) {
	    if (!read_cdb_pair(&reader, &key, &data))
	      break;
	    if (str_diff(&key, &virtuser) == 0)
	      if (!convert_data()) {
		writerr = 1;
		break;
	      }
	    if (cdb_make_add(&writer, key.s, key.len, data.s, data.len) != 0) {
	      writerr = 1;
	      break;
	    }
	  }
	  readall = ibuf_tell(&reader) == end;
	}
	ibuf_close(&reader);
      }
      if (cdb_make_finish(&writer) != 0)
	error |= CVME_FATAL;
      else
	if (readall && !writerr)
	  rename(tmppwfile.s, pwfile);
    }
    close(writefd);
    unlink(tmppwfile.s);
  }
  return error;
}
Ejemplo n.º 2
0
static void start_slot(int slot,
		       const char* command,
		       const char* envstart)
{
  static str env;
  char* period;
  int fd;
  char hostname[256];
  const char* mailto;
  const struct passwd* pw = &slots[slot].pw;
  const char* shell;

  msg5("(", pw->pw_name, ") CMD (", command, ")");

  env.len = 0;
  wrap_str(envstr_set(&env, "PATH", path, 1));
  if (envstart)
    wrap_str(envstr_from_string(&env, envstart, 1));
  wrap_str(envstr_set(&env, "HOME", pw->pw_dir, 1));
  wrap_str(envstr_set(&env, "USER", pw->pw_name, 1));
  wrap_str(envstr_set(&env, "LOGNAME", pw->pw_name, 1));

  if ((shell = envstr_get(&env, "SHELL")) == 0)
    shell = "/bin/sh";
  if ((mailto = envstr_get(&env, "MAILTO")) == 0)
    mailto = pw->pw_name;
  
  if (*mailto == 0) {
    fd = devnull;
    slots[slot].headerlen = 0;
  }
  else {
    if ((fd = path_mktemp(tmpprefix, &tmp)) == -1) {
      failsys_slot(slot, "ZCould not create temporary file");
      return;
    }
    unlink(tmp.s);
    cloexec_on(fd);
    gethostname(hostname, sizeof hostname);
    wrap_str(str_copyns(&tmp, 6, "To: <", mailto, ">\n",
			"From: Cron Daemon <root@", hostname, ">\n"));
    if ((period = strchr(hostname, '.')) != 0)
      *period = 0;
    wrap_str(str_catns(&tmp, 7, "Subject: Cron <", pw->pw_name,
		       "@", hostname, "> ", command, "\n\n"));
    slots[slot].headerlen = tmp.len;
    if (write(fd, tmp.s, tmp.len) != (long)tmp.len) {
      close(fd);
      fd = -1;
      report_slot(slot, "ZCould not write message header");
      return;
    }
  }
  
  shell_argv[shell_argc+0] = shell;
  shell_argv[shell_argc+1] = "-c";
  shell_argv[shell_argc+2] = command;

  debugf(DEBUG_EXEC, "{slot }d{ starting: }s", slot, command);
  if (!forkexec_slot(slot, devnull, fd, shell_argv, &env)) {
    if (fd != devnull)
      close(fd);
    fd = -1;
  }
  slots[slot].sending_email = 0;
  slots[slot].tmpfd = fd;
}