MH shared functions. More...

#include <stdbool.h>
#include <stdio.h>
#include <sys/types.h>

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Functions
bool	mh_mkstemp (struct Mailbox m, FILE fp, char *tgt)
	Create a temporary file.

mode_t	mh_umask (struct Mailbox *m)
	Create a umask from the mailbox directory.

Detailed Description

MH shared functions.

Authors

Richard Russon

Copyright: This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.

Definition in file shared.h.

Function Documentation

◆ mh_mkstemp()

bool mh_mkstemp	(	struct Mailbox *	m,
		FILE **	fp,
		char **	tgt
	)

Create a temporary file.

Parameters

[in]	m	Mailbox to create the file in
[out]	fp	File handle
[out]	tgt	File name

Return values

true	Success
false	Failure

Definition at line 73 of file shared.c.

{
  int fd;
  char path[PATH_MAX] = { 0 };
 
  mode_t new_umask = mh_umask(m);
  mode_t old_umask = umask(new_umask);
  mutt_debug(LL_DEBUG3, "umask set to %03o\n", new_umask);
 
  while (true)
  {
    snprintf(path, sizeof(path), "%s/.neomutt-%s-%d-%" PRIu64, mailbox_path(m),
             NONULL(ShortHostname), (int) getpid(), mutt_rand64());
    fd = open(path, O_WRONLY | O_EXCL | O_CREAT, 0666);
    if (fd == -1)
    {
      if (errno != EEXIST)
      {
        mutt_perror("%s", path);
        umask(old_umask);
        mutt_debug(LL_DEBUG3, "umask set to %03o\n", old_umask);
        return false;
      }
    }
    else
    {
      *tgt = mutt_str_dup(path);
      break;
    }
  }
  umask(old_umask);
  mutt_debug(LL_DEBUG3, "umask set to %03o\n", old_umask);
 
  *fp = fdopen(fd, "w");
  if (!*fp)
  {
    FREE(tgt);
    close(fd);
    unlink(path);
    return false;
  }
 
  return true;
}

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◆ mh_umask()

mode_t mh_umask ( struct Mailbox * m )

Create a umask from the mailbox directory.

Parameters

m Mailbox