/*
* Copyright (C) 1996-2000,2007,2010,2013 Michael R. Elkins <me@mutt.org>
* Copyright (C) 1999-2008 Thomas Roessler <roessler@does-not-exist.org>
*
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#if HAVE_CONFIG_H
# include "config.h"
#endif
#include "version.h"
#include "mutt.h"
#include "mutt_curses.h"
#include "mime.h"
#include "mailbox.h"
#include "mx.h"
#include "url.h"
#ifdef USE_IMAP
#include "imap.h"
#endif
#include "mutt_crypt.h"
#include "mutt_random.h"
#include <string.h>
#include <ctype.h>
#include <unistd.h>
#include <stdlib.h>
#include <sys/wait.h>
#include <errno.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <time.h>
#include <sys/types.h>
#include <utime.h>
#include <dirent.h>
BODY *mutt_new_body (void)
{
BODY *p = (BODY *) safe_calloc (1, sizeof (BODY));
p->disposition = DISPATTACH;
p->use_disp = 1;
return (p);
}
/* Modified by blong to accept a "suggestion" for file name. If
* that file exists, then construct one with unique name but
* keep any extension. This might fail, I guess.
* Renamed to mutt_adv_mktemp so I only have to change where it's
* called, and not all possible cases.
*/
void mutt_adv_mktemp (BUFFER *buf)
{
BUFFER *prefix = NULL;
char *suffix;
struct stat sb;
if (!(buf->data && buf->data[0]))
{
mutt_buffer_mktemp (buf);
}
else
{
prefix = mutt_buffer_pool_get ();
mutt_buffer_strcpy (prefix, buf->data);
mutt_sanitize_filename (prefix->data, MUTT_SANITIZE_ALLOW_8BIT);
mutt_buffer_printf (buf, "%s/%s", NONULL (Tempdir), mutt_b2s (prefix));
if (lstat (mutt_b2s (buf), &sb) == -1 && errno == ENOENT)
goto out;
if ((suffix = strrchr (prefix->data, '.')) != NULL)
{
*suffix = 0;
++suffix;
}
mutt_buffer_mktemp_pfx_sfx (buf, mutt_b2s (prefix), suffix);
out:
mutt_buffer_pool_release (&prefix);
}
}
/* create a send-mode duplicate from a receive-mode body */
int mutt_copy_body (FILE *fp, BODY **tgt, BODY *src)
{
BUFFER *tmp = NULL;
BODY *b;
PARAMETER *par, **ppar;
short use_disp;
tmp = mutt_buffer_pool_get ();
if (src->filename)
{
use_disp = 1;
mutt_buffer_strcpy (tmp, src->filename);
}
else
{
use_disp = 0;
}
mutt_adv_mktemp (tmp);
if (mutt_save_attachment (fp, src, mutt_b2s (tmp), 0, NULL, 0) == -1)
{
mutt_buffer_pool_release (&tmp);
return -1;
}
*tgt = mutt_new_body ();
b = *tgt;
memcpy (b, src, sizeof (BODY));
b->parts = NULL;
b->next = NULL;
b->filename = safe_strdup (mutt_b2s (tmp));
b->use_disp = use_disp;
b->unlink = 1;
if (mutt_is_text_part (b))
b->noconv = 1;
b->xtype = safe_strdup (b->xtype);
b->subtype = safe_strdup (b->subtype);
b->form_name = safe_strdup (b->form_name);
b->d_filename = safe_strdup (b->d_filename);
/* mutt_adv_mktemp() will mangle the filename in tmp,
* so preserve it in d_filename */
if (!b->d_filename && use_disp)
b->d_filename = safe_strdup (src->filename);
b->description = safe_strdup (b->description);
/*
* we don't seem to need the HEADER structure currently.
* XXX - this may change in the future
*/
if (b->hdr) b->hdr = NULL;
/* copy parameters */
for (par = b->parameter, ppar = &b->parameter; par; ppar = &(*ppar)->next, par = par->next)
{
*ppar = mutt_new_parameter ();
(*ppar)->attribute = safe_strdup (par->attribute);
(*ppar)->value = safe_strdup (par->value);
}
mutt_stamp_attachment (b);
mutt_buffer_pool_release (&tmp);
return 0;
}
void mutt_free_body (BODY **p)
{
BODY *a = *p, *b;
while (a)
{
b = a;
a = a->next;
if (b->parameter)
mutt_free_parameter (&b->parameter);
if (b->filename)
{
if (b->unlink)
unlink (b->filename);
dprint (1, (debugfile, "mutt_free_body: %sunlinking %s.\n",
b->unlink ? "" : "not ", b->filename));
}
FREE (&b->filename);
FREE (&b->d_filename);
FREE (&b->charset);
FREE (&b->content);
FREE (&b->xtype);
FREE (&b->subtype);
FREE (&b->description);
FREE (&b->form_name);
if (b->hdr)
{
/* Don't free twice (b->hdr->content = b->parts) */
b->hdr->content = NULL;
mutt_free_header(&b->hdr);
}
mutt_free_envelope (&b->mime_headers);
if (b->parts)
mutt_free_body (&b->parts);
FREE (&b);
}
*p = 0;
}
void mutt_free_parameter (PARAMETER **p)
{
PARAMETER *t = *p;
PARAMETER *o;
while (t)
{
FREE (&t->attribute);
FREE (&t->value);
o = t;
t = t->next;
FREE (&o);
}
*p = 0;
}
LIST *mutt_add_list (LIST *head, const char *data)
{
size_t len = mutt_strlen (data);
return mutt_add_list_n (head, data, len ? len + 1 : 0);
}
LIST *mutt_add_list_n (LIST *head, const void *data, size_t len)
{
LIST *tmp;
for (tmp = head; tmp && tmp->next; tmp = tmp->next)
;
if (tmp)
{
tmp->next = safe_malloc (sizeof (LIST));
tmp = tmp->next;
}
else
head = tmp = safe_malloc (sizeof (LIST));
tmp->data = safe_malloc (len);
if (len)
memcpy (tmp->data, data, len);
tmp->next = NULL;
return head;
}
LIST *mutt_find_list (LIST *l, const char *data)
{
LIST *p = l;
while (p)
{
if (data == p->data)
return p;
if (data && p->data && mutt_strcmp (p->data, data) == 0)
return p;
p = p->next;
}
return NULL;
}
int mutt_remove_from_rx_list (RX_LIST **l, const char *str)
{
RX_LIST *p, *last = NULL;
int rv = -1;
if (mutt_strcmp ("*", str) == 0)
{
mutt_free_rx_list (l); /* ``unCMD *'' means delete all current entries */
rv = 0;
}
else
{
p = *l;
last = NULL;
while (p)
{
if (ascii_strcasecmp (str, p->rx->pattern) == 0)
{
mutt_free_regexp (&p->rx);
if (last)
last->next = p->next;
else
(*l) = p->next;
FREE (&p);
rv = 0;
}
else
{
last = p;
p = p->next;
}
}
}
return (rv);
}
void mutt_free_list (LIST **list)
{
LIST *p;
if (!list) return;
while (*list)
{
p = *list;
*list = (*list)->next;
FREE (&p->data);
FREE (&p);
}
}
void mutt_free_list_generic(LIST **list, void (*data_free)(char **))
{
LIST *p;
/* wrap mutt_free_list if no data_free function was provided */
if (data_free == NULL)
{
mutt_free_list(list);
return;
}
if (!list) return;
while (*list)
{
p = *list;
*list = (*list)->next;
data_free(&p->data);
FREE (&p);
}
}
LIST *mutt_copy_list (LIST *p)
{
LIST *t, *r=NULL, *l=NULL;
for (; p; p = p->next)
{
t = (LIST *) safe_malloc (sizeof (LIST));
t->data = safe_strdup (p->data);
t->next = NULL;
if (l)
{
r->next = t;
r = r->next;
}
else
l = r = t;
}
return (l);
}
HEADER *mutt_dup_header(HEADER *h)
{
HEADER *hnew;
hnew = mutt_new_header();
memcpy(hnew, h, sizeof (HEADER));
return hnew;
}
void mutt_free_header (HEADER **h)
{
if (!h || !*h) return;
mutt_free_envelope (&(*h)->env);
mutt_free_body (&(*h)->content);
FREE (&(*h)->maildir_flags);
FREE (&(*h)->tree);
FREE (&(*h)->path);
#ifdef MIXMASTER
mutt_free_list (&(*h)->chain);
#endif
#if defined USE_POP || defined USE_IMAP
FREE (&(*h)->data);
#endif
FREE (h); /* __FREE_CHECKED__ */
}
/* returns true if the header contained in "s" is in list "t" */
int mutt_matches_ignore (const char *s, LIST *t)
{
for (; t; t = t->next)
{
if (!ascii_strncasecmp (s, t->data, mutt_strlen (t->data)) || *t->data == '*')
return 1;
}
return 0;
}
/* Splits src into parts delimited by delimiter.
* Invokes mapfunc on each part and joins the result back into src.
* Note this function currently does not preserve trailing delimiters.
*/
static void delimited_buffer_map_join (BUFFER *src, const char *delimiter,
void (*mapfunc)(BUFFER *))
{
BUFFER *dest, *part;
const char *part_begin, *part_end;
size_t delim_size;
delim_size = mutt_strlen (delimiter);
if (!delim_size)
{
mapfunc (src);
return;
}
dest = mutt_buffer_pool_get ();
part = mutt_buffer_pool_get ();
part_begin = mutt_b2s (src);
while (part_begin && *part_begin)
{
part_end = strstr (part_begin, delimiter);
if (part_end)
{
mutt_buffer_substrcpy (part, part_begin, part_end);
part_end += delim_size;
}
else
mutt_buffer_strcpy (part, part_begin);
mapfunc (part);
if (part_begin != mutt_b2s (src))
mutt_buffer_addstr (dest, delimiter);
mutt_buffer_addstr (dest, mutt_b2s (part));
part_begin = part_end;
}
mutt_buffer_strcpy (src, mutt_b2s (dest));
mutt_buffer_pool_release (&dest);
mutt_buffer_pool_release (&part);
}
void mutt_buffer_expand_multi_path (BUFFER *src, const char *delimiter)
{
delimited_buffer_map_join (src, delimiter, mutt_buffer_expand_path);
}
void mutt_buffer_expand_multi_path_norel (BUFFER *src, const char *delimiter)
{
delimited_buffer_map_join (src, delimiter, mutt_buffer_expand_path_norel);
}
/* By default this will expand relative paths and remove trailing slashes */
void mutt_buffer_expand_path (BUFFER *src)
{
_mutt_buffer_expand_path (src,
MUTT_EXPAND_PATH_EXPAND_RELATIVE |
MUTT_EXPAND_PATH_REMOVE_TRAILING_SLASH);
}
/* Does expansion without relative path expansion or trailing slashes
* removal. This is because this is used for DT_CMD_PATH types which
* can have arguments and non-path stuff after an initial command.
*/
void mutt_buffer_expand_path_norel (BUFFER *src)
{
_mutt_buffer_expand_path (src, 0);
}
void _mutt_buffer_expand_path (BUFFER *src, int flags)
{
BUFFER *p, *q, *tmp;
const char *s, *tail = "";
char *t;
int recurse = 0;
int rx = flags & MUTT_EXPAND_PATH_RX;
int expand_relative = flags & MUTT_EXPAND_PATH_EXPAND_RELATIVE;
int remove_trailing_slash = flags & MUTT_EXPAND_PATH_REMOVE_TRAILING_SLASH;
p = mutt_buffer_pool_get ();
q = mutt_buffer_pool_get ();
tmp = mutt_buffer_pool_get ();
do
{
recurse = 0;
s = mutt_b2s (src);
switch (*s)
{
case '~':
{
if (*(s + 1) == '/' || *(s + 1) == 0)
{
mutt_buffer_strcpy (p, NONULL(Homedir));
tail = s + 1;
}
else
{
struct passwd *pw;
if ((t = strchr (s + 1, '/')))
*t = 0;
if ((pw = getpwnam (s + 1)))
{
mutt_buffer_strcpy (p, pw->pw_dir);
if (t)
{
*t = '/';
tail = t;
}
else
tail = "";
}
else
{
/* user not found! */
if (t)
*t = '/';
mutt_buffer_clear (p);
tail = s;
}
}
}
break;
case '=':
case '+':
{
#ifdef USE_IMAP
/* if folder = {host} or imap[s]://host/: don't append slash */
if (mx_is_imap (NONULL (Maildir)) &&
(Maildir[strlen (Maildir) - 1] == '}' ||
Maildir[strlen (Maildir) - 1] == '/'))
mutt_buffer_strcpy (p, NONULL (Maildir));
else
#endif
if (Maildir && Maildir[strlen (Maildir) - 1] == '/')
mutt_buffer_strcpy (p, NONULL (Maildir));
else
mutt_buffer_printf (p, "%s/", NONULL (Maildir));
tail = s + 1;
}
break;
/* elm compatibility, @ expands alias to user name */
case '@':
{
HEADER *h;
ADDRESS *alias;
if ((alias = mutt_lookup_alias (s + 1)))
{
h = mutt_new_header();
h->env = mutt_new_envelope();
h->env->from = h->env->to = alias;
/* TODO: fix mutt_default_save() to use BUFFER */
mutt_buffer_increase_size (p, _POSIX_PATH_MAX);
mutt_default_save (p->data, p->dsize, h);
mutt_buffer_fix_dptr (p);
h->env->from = h->env->to = NULL;
mutt_free_header (&h);
/* Avoid infinite recursion if the resulting folder starts with '@' */
if (*(mutt_b2s (p)) != '@')
recurse = 1;
tail = "";
}
}
break;
case '>':
{
mutt_buffer_strcpy (p, NONULL(Inbox));
tail = s + 1;
}
break;
case '<':
{
mutt_buffer_strcpy (p, NONULL(Outbox));
tail = s + 1;
}
break;
case '!':
{
if (*(s+1) == '!')
{
mutt_buffer_strcpy (p, NONULL(LastFolder));
tail = s + 2;
}
else
{
mutt_buffer_strcpy (p, NONULL(Spoolfile));
tail = s + 1;
}
}
break;
case '-':
{
mutt_buffer_strcpy (p, NONULL(LastFolder));
tail = s + 1;
}
break;
case '^':
{
mutt_buffer_strcpy (p, NONULL(CurrentFolder));
tail = s + 1;
}
break;
default:
{
mutt_buffer_clear (p);
tail = s;
}
}
if (rx && *(mutt_b2s (p)) && !recurse)
{
mutt_rx_sanitize_string (q, mutt_b2s (p));
mutt_buffer_printf (tmp, "%s%s", mutt_b2s (q), tail);
}
else
mutt_buffer_printf (tmp, "%s%s", mutt_b2s (p), tail);
mutt_buffer_strcpy (src, mutt_b2s (tmp));
}
while (recurse);
mutt_buffer_pool_release (&p);
mutt_buffer_pool_release (&q);
#ifdef USE_IMAP
/* Rewrite IMAP path in canonical form - aids in string comparisons of
* folders. May possibly fail, in which case s should be the same. */
if (mx_is_imap (mutt_b2s (src)))
imap_expand_path (src);
else
#endif
if (url_check_scheme (mutt_b2s (src)) == U_UNKNOWN)
{
if (expand_relative &&
mutt_buffer_len (src) &&
*mutt_b2s (src) != '/')
{
if (mutt_getcwd (tmp))
{
/* Note, mutt_pretty_mailbox() does '..' and '.' handling. */
if (mutt_buffer_len (tmp) > 1)
mutt_buffer_addch (tmp, '/');
mutt_buffer_addstr (tmp, mutt_b2s (src));
mutt_buffer_strcpy (src, mutt_b2s (tmp));
}
}
if (remove_trailing_slash)
{
while ((mutt_buffer_len (src) > 1) &&
*(src->dptr - 1) == '/')
{
*(--src->dptr) = '\0';
}
}
}
mutt_buffer_pool_release (&tmp);
}
void mutt_buffer_remove_path_password (BUFFER *dest, const char *src)
{
mutt_buffer_clear (dest);
if (!(src && *src))
return;
#ifdef USE_IMAP
if (mx_is_imap (src))
imap_buffer_remove_path_password (dest, src);
else
#endif
mutt_buffer_strcpy (dest, src);
}
/* Extract the real name from /etc/passwd's GECOS field.
* When set, honor the regular expression in GecosMask,
* otherwise assume that the GECOS field is a
* comma-separated list.
* Replace "&" by a capitalized version of the user's login
* name.
*/
char *mutt_gecos_name (char *dest, size_t destlen, struct passwd *pw)
{
regmatch_t pat_match[1];
size_t pwnl;
int idx;
char *p;
if (!pw || !pw->pw_gecos)
return NULL;
memset (dest, 0, destlen);
if (GecosMask.rx)
{
if (regexec (GecosMask.rx, pw->pw_gecos, 1, pat_match, 0) == 0)
strfcpy (dest, pw->pw_gecos + pat_match[0].rm_so,
MIN (pat_match[0].rm_eo - pat_match[0].rm_so + 1, destlen));
}
else if ((p = strchr (pw->pw_gecos, ',')))
strfcpy (dest, pw->pw_gecos, MIN (destlen, p - pw->pw_gecos + 1));
else
strfcpy (dest, pw->pw_gecos, destlen);
pwnl = strlen (pw->pw_name);
for (idx = 0; dest[idx]; idx++)
{
if (dest[idx] == '&')
{
memmove (&dest[idx + pwnl], &dest[idx + 1],
MAX((ssize_t)(destlen - idx - pwnl - 1), 0));
memcpy (&dest[idx], pw->pw_name, MIN(destlen - idx - 1, pwnl));
dest[idx] = toupper ((unsigned char) dest[idx]);
}
}
return dest;
}
char *mutt_get_parameter (const char *s, PARAMETER *p)
{
for (; p; p = p->next)
if (ascii_strcasecmp (s, p->attribute) == 0)
return (p->value);
return NULL;
}
void mutt_set_parameter (const char *attribute, const char *value, PARAMETER **p)
{
PARAMETER *q;
if (!value)
{
mutt_delete_parameter (attribute, p);
return;
}
for (q = *p; q; q = q->next)
{
if (ascii_strcasecmp (attribute, q->attribute) == 0)
{
mutt_str_replace (&q->value, value);
return;
}
}
q = mutt_new_parameter();
q->attribute = safe_strdup(attribute);
q->value = safe_strdup(value);
q->next = *p;
*p = q;
}
void mutt_delete_parameter (const char *attribute, PARAMETER **p)
{
PARAMETER *q;
for (q = *p; q; p = &q->next, q = q->next)
{
if (ascii_strcasecmp (attribute, q->attribute) == 0)
{
*p = q->next;
q->next = NULL;
mutt_free_parameter (&q);
return;
}
}
}
/* returns 1 if Mutt can't display this type of data, 0 otherwise */
int mutt_needs_mailcap (BODY *m)
{
switch (m->type)
{
case TYPETEXT:
/* we can display any text, overridable by auto_view */
return 0;
break;
case TYPEAPPLICATION:
if ((WithCrypto & APPLICATION_PGP) && mutt_is_application_pgp(m))
return 0;
if ((WithCrypto & APPLICATION_SMIME) && mutt_is_application_smime(m))
return 0;
break;
case TYPEMULTIPART:
case TYPEMESSAGE:
return 0;
}
return 1;
}
int mutt_is_text_part (const BODY *b)
{
int t = b->type;
char *s = b->subtype;
if ((WithCrypto & APPLICATION_PGP) && mutt_is_application_pgp (b))
return 0;
if (t == TYPETEXT)
return 1;
if (t == TYPEMESSAGE)
{
if (!ascii_strcasecmp ("delivery-status", s))
return 1;
}
if ((WithCrypto & APPLICATION_PGP) && t == TYPEAPPLICATION)
{
if (!ascii_strcasecmp ("pgp-keys", s))
return 1;
}
return 0;
}
#ifdef USE_AUTOCRYPT
void mutt_free_autocrypthdr (AUTOCRYPTHDR **p)
{
AUTOCRYPTHDR *cur;
if (!p)
return;
while (*p)
{
cur = *p;
*p = (*p)->next;
FREE (&cur->addr);
FREE (&cur->keydata);
FREE (&cur);
}
}
#endif
void mutt_free_envelope (ENVELOPE **p)
{
if (!*p) return;
rfc822_free_address (&(*p)->return_path);
rfc822_free_address (&(*p)->from);
rfc822_free_address (&(*p)->to);
rfc822_free_address (&(*p)->cc);
rfc822_free_address (&(*p)->bcc);
rfc822_free_address (&(*p)->sender);
rfc822_free_address (&(*p)->reply_to);
rfc822_free_address (&(*p)->mail_followup_to);
FREE (&(*p)->list_post);
FREE (&(*p)->subject);
/* real_subj is just an offset to subject and shouldn't be freed */
FREE (&(*p)->disp_subj);
FREE (&(*p)->message_id);
FREE (&(*p)->supersedes);
FREE (&(*p)->date);
FREE (&(*p)->x_label);
mutt_buffer_free (&(*p)->spam);
mutt_free_list (&(*p)->references);
mutt_free_list (&(*p)->in_reply_to);
mutt_free_list (&(*p)->userhdrs);
#ifdef USE_AUTOCRYPT
mutt_free_autocrypthdr (&(*p)->autocrypt);
mutt_free_autocrypthdr (&(*p)->autocrypt_gossip);
#endif
FREE (p); /* __FREE_CHECKED__ */
}
/* move all the headers from extra not present in base into base */
void mutt_merge_envelopes(ENVELOPE* base, ENVELOPE** extra)
{
/* copies each existing element if necessary, and sets the element
* to NULL in the source so that mutt_free_envelope doesn't leave us
* with dangling pointers. */
#define MOVE_ELEM(h) if (!base->h) { base->h = (*extra)->h; (*extra)->h = NULL; }
MOVE_ELEM(return_path);
MOVE_ELEM(from);
MOVE_ELEM(to);
MOVE_ELEM(cc);
MOVE_ELEM(bcc);
MOVE_ELEM(sender);
MOVE_ELEM(reply_to);
MOVE_ELEM(mail_followup_to);
MOVE_ELEM(list_post);
MOVE_ELEM(message_id);
MOVE_ELEM(supersedes);
MOVE_ELEM(date);
if (!(base->changed & MUTT_ENV_CHANGED_XLABEL))
{
MOVE_ELEM(x_label);
}
if (!(base->changed & MUTT_ENV_CHANGED_REFS))
{
MOVE_ELEM(references);
}
if (!(base->changed & MUTT_ENV_CHANGED_IRT))
{
MOVE_ELEM(in_reply_to);
}
/* real_subj is subordinate to subject */
if (!base->subject)
{
base->subject = (*extra)->subject;
base->real_subj = (*extra)->real_subj;
base->disp_subj = (*extra)->disp_subj;
(*extra)->subject = NULL;
(*extra)->real_subj = NULL;
(*extra)->disp_subj = NULL;
}
/* spam and user headers should never be hashed, and the new envelope may
* have better values. Use new versions regardless. */
mutt_buffer_free (&base->spam);
mutt_free_list (&base->userhdrs);
MOVE_ELEM(spam);
MOVE_ELEM(userhdrs);
#undef MOVE_ELEM
mutt_free_envelope(extra);
}
void _mutt_buffer_mktemp (BUFFER *buf, const char *prefix, const char *suffix,
const char *src, int line)
{
RANDOM64 random64;
mutt_random_bytes(random64.char_array, sizeof(random64));
mutt_buffer_printf (buf, "%s/%s-%s-%d-%d-%"PRIu64"%s%s",
NONULL (Tempdir), NONULL (prefix), NONULL (Hostname),
(int) getuid (), (int) getpid (), random64.int_64,
suffix ? "." : "", NONULL (suffix));
dprint (3, (debugfile, "%s:%d: mutt_mktemp returns \"%s\".\n", src, line, mutt_b2s (buf)));
if (unlink (mutt_b2s (buf)) && errno != ENOENT)
dprint (1, (debugfile, "%s:%d: ERROR: unlink(\"%s\"): %s (errno %d)\n",
src, line, mutt_b2s (buf), strerror (errno), errno));
}
void _mutt_mktemp (char *s, size_t slen, const char *prefix, const char *suffix,
const char *src, int line)
{
RANDOM64 random64;
mutt_random_bytes(random64.char_array, sizeof(random64));
size_t n = snprintf (s, slen, "%s/%s-%s-%d-%d-%"PRIu64"%s%s",
NONULL (Tempdir), NONULL (prefix), NONULL (Hostname),
(int) getuid (), (int) getpid (), random64.int_64,
suffix ? "." : "", NONULL (suffix));
if (n >= slen)
dprint (1, (debugfile, "%s:%d: ERROR: insufficient buffer space to hold temporary filename! slen=%zu but need %zu\n",
src, line, slen, n));
dprint (3, (debugfile, "%s:%d: mutt_mktemp returns \"%s\".\n", src, line, s));
if (unlink (s) && errno != ENOENT)
dprint (1, (debugfile, "%s:%d: ERROR: unlink(\"%s\"): %s (errno %d)\n", src, line, s, strerror (errno), errno));
}
/* these characters must be escaped in regular expressions */
static const char rx_special_chars[] = "^.[$()|*+?{\\";
int mutt_rx_sanitize_string (BUFFER *dest, const char *src)
{
mutt_buffer_clear (dest);
while (*src)
{
if (strchr (rx_special_chars, *src))
mutt_buffer_addch (dest, '\\');
mutt_buffer_addch (dest, *src++);
}
return 0;
}
void mutt_free_alias (ALIAS **p)
{
ALIAS *t;
while (*p)
{
t = *p;
*p = (*p)->next;
mutt_alias_delete_reverse (t);
FREE (&t->name);
rfc822_free_address (&t->addr);
FREE (&t);
}
}
void mutt_buffer_pretty_multi_mailbox (BUFFER *s, const char *delimiter)
{
delimited_buffer_map_join (s, delimiter, mutt_buffer_pretty_mailbox);
}
void mutt_buffer_pretty_mailbox (BUFFER *s)
{
/* This reduces the size of the BUFFER, so we can pass it through.
* We adjust the size just to make sure s->data is not NULL though */
mutt_buffer_increase_size (s, _POSIX_PATH_MAX);
mutt_pretty_mailbox (s->data, s->dsize);
mutt_buffer_fix_dptr (s);
}
/* collapse the pathname using ~ or = when possible */
void mutt_pretty_mailbox (char *s, size_t buflen)
{
char *p = s, *q = s;
size_t len;
url_scheme_t scheme;
char tmp[PATH_MAX];
scheme = url_check_scheme (s);
#ifdef USE_IMAP
if (scheme == U_IMAP || scheme == U_IMAPS)
{
imap_pretty_mailbox (s, buflen);
return;
}
#endif
/* if s is an url, only collapse path component */
if (scheme != U_UNKNOWN)
{
p = strchr(s, ':')+1;
if (!strncmp (p, "//", 2))
q = strchr (p+2, '/');
if (!q)
q = strchr (p, '\0');
p = q;
}
/* cleanup path */
if (strstr (p, "//") || strstr (p, "/./"))
{
/* first attempt to collapse the pathname, this is more
* lightweight than realpath() and doesn't resolve links
*/
while (*p)
{
if (*p == '/' && p[1] == '/')
{
*q++ = '/';
p += 2;
}
else if (p[0] == '/' && p[1] == '.' && p[2] == '/')
{
*q++ = '/';
p += 3;
}
else
*q++ = *p++;
}
*q = 0;
}
else if (strstr (p, "..") &&
(scheme == U_UNKNOWN || scheme == U_FILE) &&
realpath (p, tmp))
strfcpy (p, tmp, buflen - (p - s));
if (mutt_strncmp (s, Maildir, (len = mutt_strlen (Maildir))) == 0 &&
s[len] == '/')
{
*s++ = '=';
memmove (s, s + len, mutt_strlen (s + len) + 1);
}
else
{
BUFFER *cwd = mutt_buffer_pool_get ();
BUFFER *home = mutt_buffer_pool_get ();
int under_cwd = 0, under_home = 0, cwd_under_home = 0;
size_t cwd_len, home_len;
mutt_getcwd (cwd);
if (mutt_buffer_len (cwd) > 1)
mutt_buffer_addch (cwd, '/');
cwd_len = mutt_buffer_len (cwd);
mutt_buffer_strcpy (home, NONULL (Homedir));
if (mutt_buffer_len (home) > 1)
mutt_buffer_addch (home, '/');
home_len = mutt_buffer_len (home);
if (cwd_len &&
mutt_strncmp (s, mutt_b2s (cwd), cwd_len) == 0)
under_cwd = 1;
if (home_len &&
mutt_strncmp (s, mutt_b2s (home), home_len) == 0)
under_home = 1;
if (under_cwd && under_home && (home_len < cwd_len))
cwd_under_home = 1;
if (under_cwd && (!under_home || cwd_under_home))
memmove (s, s + cwd_len, mutt_strlen (s + cwd_len) + 1);
else if (under_home && (home_len > 1))
{
*s++ = '~';
memmove (s, s + home_len - 2, mutt_strlen (s + home_len - 2) + 1);
}
mutt_buffer_pool_release (&cwd);
mutt_buffer_pool_release (&home);
}
}
void mutt_pretty_size (char *s, size_t len, LOFF_T n)
{
if (option (OPTSIZESHOWBYTES) && (n < 1024))
snprintf (s, len, "%d", (int)n);
else if (n == 0)
strfcpy (s,
option (OPTSIZEUNITSONLEFT) ? "K0" : "0K",
len);
else if (option (OPTSIZESHOWFRACTIONS) && (n < 10189)) /* 0.1K - 9.9K */
{
snprintf (s, len,
option (OPTSIZEUNITSONLEFT) ? "K%3.1f" : "%3.1fK",
(n < 103) ? 0.1 : n / 1024.0);
}
else if (!option (OPTSIZESHOWMB) || (n < 1023949)) /* 10K - 999K */
{
/* 51 is magic which causes 10189/10240 to be rounded up to 10 */
snprintf (s, len,
option (OPTSIZEUNITSONLEFT) ? ("K" OFF_T_FMT) : (OFF_T_FMT "K"),
(n + 51) / 1024);
}
else if (option (OPTSIZESHOWFRACTIONS) && (n < 10433332)) /* 1.0M - 9.9M */
{
snprintf (s, len,
option (OPTSIZEUNITSONLEFT) ? "M%3.1f" : "%3.1fM",
n / 1048576.0);
}
else /* 10M+ */
{
/* (10433332 + 52428) / 1048576 = 10 */
snprintf (s, len,
option (OPTSIZEUNITSONLEFT) ? ("M" OFF_T_FMT) : (OFF_T_FMT "M"),
(n + 52428) / 1048576);
}
}
void _mutt_buffer_quote_filename (BUFFER *d, const char *f, int add_outer)
{
mutt_buffer_clear (d);
if (!f)
return;
if (add_outer)
mutt_buffer_addch (d, '\'');
for (; *f; f++)
{
if (*f == '\'' || *f == '`')
{
mutt_buffer_addch (d, '\'');
mutt_buffer_addch (d, '\\');
mutt_buffer_addch (d, *f);
mutt_buffer_addch (d, '\'');
}
else
mutt_buffer_addch (d, *f);
}
if (add_outer)
mutt_buffer_addch (d, '\'');
}
static const char safe_chars[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+@{}._-:%";
void mutt_buffer_sanitize_filename (BUFFER *d, const char *f, int flags)
{
int allow_slash, allow_8bit;
mutt_buffer_clear (d);
if (!f)
return;
allow_slash = flags & MUTT_SANITIZE_ALLOW_SLASH;
allow_8bit = flags & MUTT_SANITIZE_ALLOW_8BIT;
for (; *f; f++)
{
if ((allow_slash && *f == '/') ||
(allow_8bit && (*f & 0x80)) ||
strchr (safe_chars, *f))
mutt_buffer_addch (d, *f);
else
mutt_buffer_addch (d, '_');
}
}
void mutt_expand_file_fmt (BUFFER *dest, const char *fmt, const char *src)
{
BUFFER *tmp;
tmp = mutt_buffer_pool_get ();
mutt_buffer_quote_filename (tmp, src);
mutt_expand_fmt (dest, fmt, mutt_b2s (tmp));
mutt_buffer_pool_release (&tmp);
}
void mutt_expand_fmt (BUFFER *dest, const char *fmt, const char *src)
{
const char *p;
int found = 0;
mutt_buffer_clear (dest);
for (p = fmt; *p; p++)
{
if (*p == '%')
{
switch (p[1])
{
case '%':
mutt_buffer_addch (dest, *p++);
break;
case 's':
found = 1;
mutt_buffer_addstr (dest, src);
p++;
break;
default:
mutt_buffer_addch (dest, *p);
break;
}
}
else
{
mutt_buffer_addch (dest, *p);
}
}
if (!found)
{
mutt_buffer_addch (dest, ' ');
mutt_buffer_addstr (dest, src);
}
}
/* return 0 on success, -1 on abort, 1 on error */
int mutt_check_overwrite (const char *attname, const char *path,
BUFFER *fname, int *append, char **directory)
{
int rc = 0;
BUFFER *tmp = NULL;
struct stat st;
mutt_buffer_strcpy (fname, path);
if (access (mutt_b2s (fname), F_OK) != 0)
return 0;
if (stat (mutt_b2s (fname), &st) != 0)
return -1;
if (S_ISDIR (st.st_mode))
{
if (directory)
{
switch (mutt_multi_choice
/* L10N:
Means "The path you specified as the destination file is a directory."
See the msgid "Save to file: " (alias.c, recvattach.c) */
(_("File is a directory, save under it? [(y)es, (n)o, (a)ll]"), _("yna")))
{
case 3: /* all */
mutt_str_replace (directory, mutt_b2s (fname));
break;
case 1: /* yes */
FREE (directory); /* __FREE_CHECKED__ */
break;
case -1: /* abort */
FREE (directory); /* __FREE_CHECKED__ */
return -1;
case 2: /* no */
FREE (directory); /* __FREE_CHECKED__ */
return 1;
}
}
/* L10N:
Means "The path you specified as the destination file is a directory."
See the msgid "Save to file: " (alias.c, recvattach.c) */
else if ((rc = mutt_yesorno (_("File is a directory, save under it?"), MUTT_YES)) != MUTT_YES)
return (rc == MUTT_NO) ? 1 : -1;
tmp = mutt_buffer_pool_get ();
mutt_buffer_strcpy (tmp, mutt_basename (NONULL (attname)));
if ((mutt_buffer_get_field (_("File under directory: "), tmp,
MUTT_FILE | MUTT_CLEAR) != 0) ||
!mutt_buffer_len (tmp))
{
mutt_buffer_pool_release (&tmp);
return (-1);
}
mutt_buffer_concat_path (fname, path, mutt_b2s (tmp));
mutt_buffer_pool_release (&tmp);
}
if (*append == 0 && access (mutt_b2s (fname), F_OK) == 0)
{
switch (mutt_multi_choice
(_("File exists, (o)verwrite, (a)ppend, or (c)ancel?"), _("oac")))
{
case -1: /* abort */
return -1;
case 3: /* cancel */
return 1;
case 2: /* append */
*append = MUTT_SAVE_APPEND;
break;
case 1: /* overwrite */
*append = MUTT_SAVE_OVERWRITE;
break;
}
}
return 0;
}
void mutt_save_path (char *d, size_t dsize, ADDRESS *a)
{
if (a && a->mailbox)
{
strfcpy (d, a->mailbox, dsize);
if (!option (OPTSAVEADDRESS))
{
char *p;
if ((p = strpbrk (d, "%@")))
*p = 0;
}
mutt_strlower (d);
}
else
*d = 0;
}
void mutt_buffer_save_path (BUFFER *dest, ADDRESS *a)
{
if (a && a->mailbox)
{
mutt_buffer_strcpy (dest, a->mailbox);
if (!option (OPTSAVEADDRESS))
{
char *p;
if ((p = strpbrk (dest->data, "%@")))
{
*p = 0;
mutt_buffer_fix_dptr (dest);
}
}
mutt_strlower (dest->data);
}
else
mutt_buffer_clear (dest);
}
void mutt_safe_path (BUFFER *dest, ADDRESS *a)
{
char *p;
mutt_buffer_save_path (dest, a);
for (p = dest->data; *p; p++)
if (*p == '/' || ISSPACE (*p) || !IsPrint ((unsigned char) *p))
*p = '_';
}
void mutt_buffer_concat_path (BUFFER *d, const char *dir, const char *fname)
{
const char *fmt = "%s/%s";
if (!*fname || (*dir && dir[strlen(dir)-1] == '/'))
fmt = "%s%s";
mutt_buffer_printf (d, fmt, dir, fname);
}
/*
* Write the concatened pathname (dir + "/" + fname) into dst.
* The slash is omitted when dir or fname is of 0 length.
*/
void mutt_buffer_concatn_path (BUFFER *dst, const char *dir, size_t dirlen,
const char *fname, size_t fnamelen)
{
mutt_buffer_clear (dst);
if (dirlen)
mutt_buffer_addstr_n (dst, dir, dirlen);
if (dirlen && fnamelen)
mutt_buffer_addch (dst, '/');
if (fnamelen)
mutt_buffer_addstr_n (dst, fname, fnamelen);
}
const char *mutt_getcwd (BUFFER *cwd)
{
char *retval;
mutt_buffer_increase_size (cwd, _POSIX_PATH_MAX);
retval = getcwd (cwd->data, cwd->dsize);
while (!retval && errno == ERANGE)
{
mutt_buffer_increase_size (cwd, cwd->dsize + STRING);
retval = getcwd (cwd->data, cwd->dsize);
}
if (retval)
mutt_buffer_fix_dptr (cwd);
else
mutt_buffer_clear (cwd);
return retval;
}
char *mutt_apply_replace (char *d, size_t dlen, char *s, REPLACE_LIST *rlist)
{
REPLACE_LIST *l;
static regmatch_t *pmatch = NULL;
static int nmatch = 0;
BUFFER *srcbuf, *destbuf;
char *p;
unsigned int n;
if (d && dlen)
d[0] = '\0';
if (s == NULL || *s == '\0' || (d && !dlen))
return d;
srcbuf = mutt_buffer_pool_get ();
destbuf = mutt_buffer_pool_get ();
mutt_buffer_strcpy (srcbuf, s);
for (l = rlist; l; l = l->next)
{
/* If this pattern needs more matches, expand pmatch. */
if (l->nmatch > nmatch)
{
safe_realloc (&pmatch, l->nmatch * sizeof(regmatch_t));
nmatch = l->nmatch;
}
if (regexec (l->rx->rx, mutt_b2s (srcbuf), l->nmatch, pmatch, 0) == 0)
{
dprint (5, (debugfile, "mutt_apply_replace: %s matches %s\n",
mutt_b2s (srcbuf), l->rx->pattern));
mutt_buffer_clear (destbuf);
if (l->template)
{
for (p = l->template; *p; )
{
if (*p == '%')
{
p++;
if (*p == 'L')
{
p++;
mutt_buffer_addstr_n (destbuf, mutt_b2s (srcbuf), pmatch[0].rm_so);
}
else if (*p == 'R')
{
p++;
mutt_buffer_addstr (destbuf, srcbuf->data + pmatch[0].rm_eo);
}
else
{
if (!mutt_atoui (p, &n, MUTT_ATOI_ALLOW_TRAILING) && (n < l->nmatch))
mutt_buffer_addstr_n (destbuf, srcbuf->data + pmatch[n].rm_so,
pmatch[n].rm_eo - pmatch[n].rm_so);
while (isdigit((unsigned char)*p)) /* skip subst token */
++p;
}
}
else
mutt_buffer_addch (destbuf, *p++);
}
}
mutt_buffer_strcpy (srcbuf, mutt_b2s (destbuf));
dprint (5, (debugfile, "mutt_apply_replace: subst %s\n", mutt_b2s (destbuf)));
}
}
if (d)
strfcpy (d, mutt_b2s (srcbuf), dlen);
else
d = safe_strdup (mutt_b2s (srcbuf));
mutt_buffer_pool_release (&srcbuf);
mutt_buffer_pool_release (&destbuf);
return d;
}
void mutt_FormatString (char *dest, /* output buffer */
size_t destlen, /* output buffer len */
size_t col, /* starting column (nonzero when called recursively) */
int cols, /* maximum columns */
const char *src, /* template string */
format_t *callback, /* callback for processing */
void *data, /* callback data */
format_flag flags) /* callback flags */
{
char prefix[SHORT_STRING], buf[LONG_STRING], *cp, *wptr = dest, ch;
char ifstring[SHORT_STRING], elsestring[SHORT_STRING];
size_t wlen, count, len, wid;
pid_t pid;
FILE *filter;
int n;
char *recycler;
prefix[0] = '\0';
destlen--; /* save room for the terminal \0 */
wlen = ((flags & MUTT_FORMAT_ARROWCURSOR) && option (OPTARROWCURSOR)) ? 3 : 0;
col += wlen;
if ((flags & MUTT_FORMAT_NOFILTER) == 0)
{
int off = -1;
/* Do not consider filters if no pipe at end */
n = mutt_strlen(src);
if (n > 1 && src[n-1] == '|')
{
/* Scan backwards for backslashes */
off = n;
while (off > 0 && src[off-2] == '\\')
off--;
}
/* If number of backslashes is even, the pipe is real. */
/* n-off is the number of backslashes. */
if (off > 0 && ((n-off) % 2) == 0)
{
BUFFER *srcbuf, *word, *command;
char srccopy[LONG_STRING];
#ifdef DEBUG
int i = 0;
#endif
dprint(3, (debugfile, "fmtpipe = %s\n", src));
strncpy(srccopy, src, n);
srccopy[n-1] = '\0';
/* prepare BUFFERs */
srcbuf = mutt_buffer_from (srccopy);
/* note: we are resetting dptr and *reading* from the buffer, so we don't
* want to use mutt_buffer_clear(). */
mutt_buffer_rewind (srcbuf);
word = mutt_buffer_new ();
command = mutt_buffer_new ();
/* Iterate expansions across successive arguments */
do
{
char *p;
/* Extract the command name and copy to command line */
dprint(3, (debugfile, "fmtpipe +++: %s\n", srcbuf->dptr));
if (word->data)
*word->data = '\0';
mutt_extract_token(word, srcbuf, MUTT_TOKEN_NOLISP);
dprint(3, (debugfile, "fmtpipe %2d: %s\n", i++, word->data));
mutt_buffer_addch(command, '\'');
mutt_FormatString(buf, sizeof(buf), 0, cols, word->data, callback, data,
flags | MUTT_FORMAT_NOFILTER);
for (p = buf; p && *p; p++)
{
if (*p == '\'')
/* shell quoting doesn't permit escaping a single quote within
* single-quoted material. double-quoting instead will lead
* shell variable expansions, so break out of the single-quoted
* span, insert a double-quoted single quote, and resume. */
mutt_buffer_addstr(command, "'\"'\"'");
else
mutt_buffer_addch(command, *p);
}
mutt_buffer_addch(command, '\'');
mutt_buffer_addch(command, ' ');
} while (MoreArgs(srcbuf));
dprint(3, (debugfile, "fmtpipe > %s\n", command->data));
col -= wlen; /* reset to passed in value */
wptr = dest; /* reset write ptr */
wlen = ((flags & MUTT_FORMAT_ARROWCURSOR) && option (OPTARROWCURSOR)) ? 3 : 0;
if ((pid = mutt_create_filter(command->data, NULL, &filter, NULL)) != -1)
{
int rc;
n = fread(dest, 1, destlen /* already decremented */, filter);
safe_fclose (&filter);
rc = mutt_wait_filter(pid);
if (rc != 0)
dprint(1, (debugfile, "format pipe command exited code %d\n", rc));
if (n > 0)
{
dest[n] = 0;
while ((n > 0) && (dest[n-1] == '\n' || dest[n-1] == '\r'))
dest[--n] = '\0';
dprint(3, (debugfile, "fmtpipe < %s\n", dest));
/* If the result ends with '%', this indicates that the filter
* generated %-tokens that mutt can expand. Eliminate the '%'
* marker and recycle the string through mutt_FormatString().
* To literally end with "%", use "%%". */
if ((n > 0) && dest[n-1] == '%')
{
--n;
dest[n] = '\0'; /* remove '%' */
if ((n > 0) && dest[n-1] != '%')
{
recycler = safe_strdup(dest);
if (recycler)
{
/* destlen is decremented at the start of this function
* to save space for the terminal nul char. We can add
* it back for the recursive call since the expansion of
* format pipes does not try to append a nul itself.
*/
mutt_FormatString(dest, destlen+1, col, cols, recycler, callback, data, flags);
FREE(&recycler);
}
}
}
}
else
{
/* read error */
dprint(1, (debugfile, "error reading from fmtpipe: %s (errno=%d)\n", strerror(errno), errno));
*wptr = 0;
}
}
else
{
/* Filter failed; erase write buffer */
*wptr = '\0';
}
mutt_buffer_free(&command);
mutt_buffer_free(&srcbuf);
mutt_buffer_free(&word);
return;
}
}
while (*src && wlen < destlen)
{
if (*src == '%')
{
if (*++src == '%')
{
*wptr++ = '%';
wlen++;
col++;
src++;
continue;
}
if (*src == '?')
{
flags |= MUTT_FORMAT_OPTIONAL;
src++;
}
else
{
flags &= ~MUTT_FORMAT_OPTIONAL;
/* eat the format string */
cp = prefix;
count = 0;
while (count < sizeof (prefix) &&
(isdigit ((unsigned char) *src) || *src == '.' || *src == '-' || *src == '='))
{
*cp++ = *src++;
count++;
}
*cp = 0;
}
if (!*src)
break; /* bad format */
ch = *src++; /* save the character to switch on */
if (flags & MUTT_FORMAT_OPTIONAL)
{
if (*src != '?')
break; /* bad format */
src++;
/* eat the `if' part of the string */
cp = ifstring;
count = 0;
while (count < sizeof (ifstring) && *src && *src != '?' && *src != '&')
{
*cp++ = *src++;
count++;
}
*cp = 0;
/* eat the `else' part of the string (optional) */
if (*src == '&')
src++; /* skip the & */
cp = elsestring;
count = 0;
while (count < sizeof (elsestring) && *src && *src != '?')
{
*cp++ = *src++;
count++;
}
*cp = 0;
if (!*src)
break; /* bad format */
src++; /* move past the trailing `?' */
}
/* handle generic cases first */
if (ch == '>' || ch == '*')
{
/* %>X: right justify to EOL, left takes precedence
* %*X: right justify to EOL, right takes precedence */
int soft = ch == '*';
int pl, pw;
if ((pl = mutt_charlen (src, &pw)) <= 0)
pl = pw = 1;
/* see if there's room to add content, else ignore */
if ((col < cols && wlen < destlen) || soft)
{
int pad;
/* get contents after padding */
mutt_FormatString (buf, sizeof (buf), 0, cols, src + pl, callback, data, flags);
len = mutt_strlen (buf);
wid = mutt_strwidth (buf);
pad = (cols - col - wid) / pw;
if (pad >= 0)
{
/* try to consume as many columns as we can, if we don't have
* memory for that, use as much memory as possible */
if (wlen + (pad * pl) + len > destlen)
pad = (destlen > wlen + len) ? ((destlen - wlen - len) / pl) : 0;
else
{
/* Add pre-spacing to make multi-column pad characters and
* the contents after padding line up */
while ((col + (pad * pw) + wid < cols) &&
(wlen + (pad * pl) + len < destlen))
{
*wptr++ = ' ';
wlen++;
col++;
}
}
while (pad-- > 0)
{
memcpy (wptr, src, pl);
wptr += pl;
wlen += pl;
col += pw;
}
}
else if (soft && pad < 0)
{
int offset = ((flags & MUTT_FORMAT_ARROWCURSOR) && option (OPTARROWCURSOR)) ? 3 : 0;
int avail_cols = (cols > offset) ? (cols - offset) : 0;
/* \0-terminate dest for length computation in mutt_wstr_trunc() */
*wptr = 0;
/* make sure right part is at most as wide as display */
len = mutt_wstr_trunc (buf, destlen, avail_cols, &wid);
/* truncate left so that right part fits completely in */
wlen = mutt_wstr_trunc (dest, destlen - len, avail_cols - wid, &col);
wptr = dest + wlen;
/* Multi-column characters may be truncated in the middle.
* Add spacing so the right hand side lines up. */
while ((col + wid < avail_cols) && (wlen + len < destlen))
{
*wptr++ = ' ';
wlen++;
col++;
}
}
if (len + wlen > destlen)
len = mutt_wstr_trunc (buf, destlen - wlen, cols - col, NULL);
memcpy (wptr, buf, len);
wptr += len;
wlen += len;
col += wid;
src += pl;
}
break; /* skip rest of input */
}
else if (ch == '|')
{
/* pad to EOL */
int pl, pw, c;
if ((pl = mutt_charlen (src, &pw)) <= 0)
pl = pw = 1;
/* see if there's room to add content, else ignore */
if (col < cols && wlen < destlen)
{
c = (cols - col) / pw;
if (c > 0 && wlen + (c * pl) > destlen)
c = ((signed)(destlen - wlen)) / pl;
while (c > 0)
{
memcpy (wptr, src, pl);
wptr += pl;
wlen += pl;
col += pw;
c--;
}
src += pl;
}
break; /* skip rest of input */
}
else
{
short tolower = 0;
short nodots = 0;
while (ch == '_' || ch == ':')
{
if (ch == '_')
tolower = 1;
else if (ch == ':')
nodots = 1;
ch = *src++;
}
/* use callback function to handle this case */
*buf = '\0';
src = callback (buf, sizeof (buf), col, cols, ch, src, prefix, ifstring, elsestring, data, flags);
if (tolower)
mutt_strlower (buf);
if (nodots)
{
char *p = buf;
for (; *p; p++)
if (*p == '.')
*p = '_';
}
if ((len = mutt_strlen (buf)) + wlen > destlen)
len = mutt_wstr_trunc (buf, destlen - wlen, cols - col, NULL);
memcpy (wptr, buf, len);
wptr += len;
wlen += len;
col += mutt_strwidth (buf);
}
}
else if (*src == '\\')
{
if (!*++src)
break;
switch (*src)
{
case 'n':
*wptr = '\n';
break;
case 't':
*wptr = '\t';
break;
case 'r':
*wptr = '\r';
break;
case 'f':
*wptr = '\f';
break;
case 'v':
*wptr = '\v';
break;
default:
*wptr = *src;
break;
}
src++;
wptr++;
wlen++;
col++;
}
else
{
int tmp, w;
/* in case of error, simply copy byte */
if ((tmp = mutt_charlen (src, &w)) < 0)
tmp = w = 1;
if (tmp > 0 && wlen + tmp < destlen)
{
memcpy (wptr, src, tmp);
wptr += tmp;
src += tmp;
wlen += tmp;
col += w;
}
else
{
src += destlen - wlen;
wlen = destlen;
}
}
}
*wptr = 0;
}
/* This function allows the user to specify a command to read stdout from in
place of a normal file. If the last character in the string is a pipe (|),
then we assume it is a command to run instead of a normal file. */
FILE *mutt_open_read (const char *path, pid_t *thepid)
{
FILE *f;
struct stat s;
size_t len = mutt_strlen (path);
if (!len)
return NULL;
if (path[len - 1] == '|')
{
/* read from a pipe */
char *s = safe_strdup (path);
s[len - 1] = 0;
mutt_endwin (NULL);
*thepid = mutt_create_filter (s, NULL, &f, NULL);
FREE (&s);
}
else
{
if (stat (path, &s) < 0)
return (NULL);
if (S_ISDIR (s.st_mode))
{
errno = EINVAL;
return (NULL);
}
f = fopen (path, "r");
*thepid = -1;
}
return (f);
}
/* returns 0 if OK to proceed, -1 to abort, 1 to retry */
int mutt_save_confirm (const char *s, struct stat *st)
{
BUFFER *tmp = NULL;
int ret = 0;
int rc;
int magic = 0;
magic = mx_get_magic (s);
#ifdef USE_POP
if (magic == MUTT_POP)
{
mutt_error _("Can't save message to POP mailbox.");
return 1;
}
#endif
if (magic > 0 && !mx_access (s, W_OK))
{
if (option (OPTCONFIRMAPPEND))
{
tmp = mutt_buffer_pool_get ();
mutt_buffer_printf (tmp, _("Append message(s) to %s?"), s);
if ((rc = mutt_query_boolean (OPTCONFIRMAPPEND,
mutt_b2s (tmp), MUTT_YES)) == MUTT_NO)
ret = 1;
else if (rc == -1)
ret = -1;
mutt_buffer_pool_release (&tmp);
}
}
if (stat (s, st) != -1)
{
if (magic == -1)
{
mutt_error (_("%s is not a mailbox!"), s);
return 1;
}
}
else if (magic != MUTT_IMAP)
{
st->st_mtime = 0;
st->st_atime = 0;
if (errno == ENOENT)
{
if (option (OPTCONFIRMCREATE))
{
tmp = mutt_buffer_pool_get ();
mutt_buffer_printf (tmp, _("Create %s?"), s);
if ((rc = mutt_query_boolean (OPTCONFIRMCREATE,
mutt_b2s (tmp), MUTT_YES)) == MUTT_NO)
ret = 1;
else if (rc == -1)
ret = -1;
mutt_buffer_pool_release (&tmp);
}
}
else
{
mutt_perror (s);
return 1;
}
}
mutt_window_clearline (MuttMessageWindow, 0);
return (ret);
}
void state_prefix_putc (char c, STATE *s)
{
if (s->flags & MUTT_PENDINGPREFIX)
{
state_reset_prefix (s);
if (s->prefix)
state_puts (s->prefix, s);
}
state_putc (c, s);
if (c == '\n')
state_set_prefix (s);
}
int state_printf (STATE *s, const char *fmt, ...)
{
int rv;
va_list ap;
va_start (ap, fmt);
rv = vfprintf (s->fpout, fmt, ap);
va_end (ap);
return rv;
}
void state_mark_attach (STATE *s)
{
if ((s->flags & MUTT_DISPLAY) &&
(!Pager || !mutt_strcmp (Pager, "builtin")))
state_puts (AttachmentMarker, s);
}
void state_mark_protected_header (STATE *s)
{
if ((s->flags & MUTT_DISPLAY) &&
(!Pager || !mutt_strcmp (Pager, "builtin")))
state_puts (ProtectedHeaderMarker, s);
}
void state_attach_puts (const char *t, STATE *s)
{
if (*t != '\n') state_mark_attach (s);
while (*t)
{
state_putc (*t, s);
if (*t++ == '\n' && *t)
if (*t != '\n') state_mark_attach (s);
}
}
int state_putwc (wchar_t wc, STATE *s)
{
char mb[MB_LEN_MAX] = "";
int rc;
if ((rc = wcrtomb (mb, wc, NULL)) < 0)
return rc;
if (fputs (mb, s->fpout) == EOF)
return -1;
return 0;
}
int state_putws (const wchar_t *ws, STATE *s)
{
const wchar_t *p = ws;
while (p && *p != L'\0')
{
if (state_putwc (*p, s) < 0)
return -1;
p++;
}
return 0;
}
void mutt_display_sanitize (char *s)
{
for (; *s; s++)
{
if (!IsPrint (*s))
*s = '?';
}
}
void mutt_sleep (short s)
{
if (SleepTime > s)
sleep (SleepTime);
else if (s)
sleep(s);
}
/* Decrease a file's modification time by 1 second */
time_t mutt_decrease_mtime (const char *f, struct stat *st)
{
struct utimbuf utim;
struct stat _st;
time_t mtime;
int rc;
if (!st)
{
if (stat (f, &_st) == -1)
return -1;
st = &_st;
}
if ((mtime = st->st_mtime) == time (NULL))
{
mtime -= 1;
utim.actime = mtime;
utim.modtime = mtime;
do
rc = utime (f, &utim);
while (rc == -1 && errno == EINTR);
if (rc == -1)
return -1;
}
return mtime;
}
/* sets mtime of 'to' to mtime of 'from' */
void mutt_set_mtime (const char* from, const char* to)
{
struct utimbuf utim;
struct stat st;
if (stat (from, &st) != -1)
{
utim.actime = st.st_mtime;
utim.modtime = st.st_mtime;
utime (to, &utim);
}
}
/* set atime to current time, just as read() would do on !noatime.
* Silently ignored if unsupported. */
void mutt_touch_atime (int f)
{
#ifdef HAVE_FUTIMENS
struct timespec times[2]={{0,UTIME_NOW},{0,UTIME_OMIT}};
futimens(f, times);
#endif
}
int mutt_timespec_compare (struct timespec *a, struct timespec *b)
{
if (a->tv_sec < b->tv_sec)
return -1;
if (a->tv_sec > b->tv_sec)
return 1;
if (a->tv_nsec < b->tv_nsec)
return -1;
if (a->tv_nsec > b->tv_nsec)
return 1;
return 0;
}
void mutt_get_stat_timespec (struct timespec *dest, struct stat *sb, mutt_stat_type type)
{
dest->tv_sec = 0;
dest->tv_nsec = 0;
switch (type)
{
case MUTT_STAT_ATIME:
dest->tv_sec = sb->st_atime;
#ifdef HAVE_STRUCT_STAT_ST_ATIM_TV_NSEC
dest->tv_nsec = sb->st_atim.tv_nsec;
#endif
break;
case MUTT_STAT_MTIME:
dest->tv_sec = sb->st_mtime;
#ifdef HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC
dest->tv_nsec = sb->st_mtim.tv_nsec;
#endif
break;
case MUTT_STAT_CTIME:
dest->tv_sec = sb->st_ctime;
#ifdef HAVE_STRUCT_STAT_ST_CTIM_TV_NSEC
dest->tv_nsec = sb->st_ctim.tv_nsec;
#endif
break;
}
}
int mutt_stat_timespec_compare (struct stat *sba, mutt_stat_type type, struct timespec *b)
{
struct timespec a;
mutt_get_stat_timespec (&a, sba, type);
return mutt_timespec_compare (&a, b);
}
int mutt_stat_compare (struct stat *sba, mutt_stat_type sba_type,
struct stat *sbb, mutt_stat_type sbb_type)
{
struct timespec a, b;
mutt_get_stat_timespec (&a, sba, sba_type);
mutt_get_stat_timespec (&b, sbb, sbb_type);
return mutt_timespec_compare (&a, &b);
}
const char *mutt_make_version (void)
{
static char vstring[STRING];
snprintf (vstring, sizeof (vstring), "Mutt %s (%s)",
MUTT_VERSION, ReleaseDate);
return vstring;
}
REGEXP *mutt_compile_regexp (const char *s, int flags)
{
REGEXP *pp = safe_calloc (sizeof (REGEXP), 1);
pp->pattern = safe_strdup (s);
pp->rx = safe_calloc (sizeof (regex_t), 1);
if (REGCOMP (pp->rx, NONULL(s), flags) != 0)
mutt_free_regexp (&pp);
return pp;
}
void mutt_free_regexp (REGEXP **pp)
{
FREE (&(*pp)->pattern);
regfree ((*pp)->rx);
FREE (&(*pp)->rx);
FREE (pp); /* __FREE_CHECKED__ */
}
void mutt_free_rx_list (RX_LIST **list)
{
RX_LIST *p;
if (!list) return;
while (*list)
{
p = *list;
*list = (*list)->next;
mutt_free_regexp (&p->rx);
FREE (&p);
}
}
void mutt_free_replace_list (REPLACE_LIST **list)
{
REPLACE_LIST *p;
if (!list) return;
while (*list)
{
p = *list;
*list = (*list)->next;
mutt_free_regexp (&p->rx);
FREE (&p->template);
FREE (&p);
}
}
int mutt_match_rx_list (const char *s, RX_LIST *l)
{
if (!s) return 0;
for (; l; l = l->next)
{
if (regexec (l->rx->rx, s, (size_t) 0, (regmatch_t *) 0, (int) 0) == 0)
{
dprint (5, (debugfile, "mutt_match_rx_list: %s matches %s\n", s, l->rx->pattern));
return 1;
}
}
return 0;
}
/* Match a string against the patterns defined by the 'spam' command and output
* the expanded format into `text` when there is a match. If textsize<=0, the
* match is performed but the format is not expanded and no assumptions are made
* about the value of `text` so it may be NULL.
*
* Returns 1 if the argument `s` matches a pattern in the spam list, otherwise
* 0. */
int mutt_match_spam_list (const char *s, REPLACE_LIST *l, char *text, int textsize)
{
static regmatch_t *pmatch = NULL;
static int nmatch = 0;
int tlen = 0;
char *p;
if (!s) return 0;
for (; l; l = l->next)
{
/* If this pattern needs more matches, expand pmatch. */
if (l->nmatch > nmatch)
{
safe_realloc (&pmatch, l->nmatch * sizeof(regmatch_t));
nmatch = l->nmatch;
}
/* Does this pattern match? */
if (regexec (l->rx->rx, s, (size_t) l->nmatch, (regmatch_t *) pmatch, (int) 0) == 0)
{
dprint (5, (debugfile, "mutt_match_spam_list: %s matches %s\n", s, l->rx->pattern));
dprint (5, (debugfile, "mutt_match_spam_list: %d subs\n", (int)l->rx->rx->re_nsub));
/* Copy template into text, with substitutions. */
for (p = l->template; *p && tlen < textsize - 1;)
{
/* backreference to pattern match substring, eg. %1, %2, etc) */
if (*p == '%')
{
char *e; /* used as pointer to end of integer backreference in strtol() call */
int n;
++p; /* skip over % char */
n = strtol(p, &e, 10);
/* Ensure that the integer conversion succeeded (e!=p) and bounds check. The upper bound check
* should not strictly be necessary since add_to_spam_list() finds the largest value, and
* the static array above is always large enough based on that value. */
if (e != p && n >= 0 && n <= l->nmatch && pmatch[n].rm_so != -1)
{
/* copy as much of the substring match as will fit in the output buffer, saving space for
* the terminating nul char */
int idx;
for (idx = pmatch[n].rm_so; (idx < pmatch[n].rm_eo) && (tlen < textsize - 1); ++idx)
text[tlen++] = s[idx];
}
p = e; /* skip over the parsed integer */
}
else
{
text[tlen++] = *p++;
}
}
/* tlen should always be less than textsize except when textsize<=0
* because the bounds checks in the above code leave room for the
* terminal nul char. This should avoid returning an unterminated
* string to the caller. When textsize<=0 we make no assumption about
* the validity of the text pointer. */
if (tlen < textsize)
{
text[tlen] = '\0';
dprint (5, (debugfile, "mutt_match_spam_list: \"%s\"\n", text));
}
return 1;
}
}
return 0;
}
void mutt_encode_path (BUFFER *dest, const char *src)
{
char *p;
int rc;
p = safe_strdup (src);
rc = mutt_convert_string (&p, Charset, "utf-8", 0);
/* `src' may be NULL, such as when called from the pop3 driver. */
mutt_buffer_strcpy (dest, (rc == 0) ? NONULL(p) : NONULL(src));
FREE (&p);
}
/* returns: 0 - successful conversion
* -1 - error: invalid input
* -2 - error: out of range
*/
int mutt_atolofft (const char *str, LOFF_T *dst, int flags)
{
int rc;
long long res;
LOFF_T tmp;
LOFF_T *t = dst ? dst : &tmp;
*t = 0;
if ((rc = mutt_atoll (str, &res, flags)) < 0)
return rc;
if ((LOFF_T) res != res)
return -2;
*t = (LOFF_T) res;
return rc;
}
/************************************************************************
* These functions are transplanted from lib.c, in order to modify them *
* to use BUFFERs. *
************************************************************************/
/* remove a directory and everything under it */
int mutt_rmtree (const char* path)
{
DIR* dirp;
struct dirent* de;
BUFFER *cur = NULL;
struct stat statbuf;
int rc = 0;
if (!(dirp = opendir (path)))
{
dprint (1, (debugfile, "mutt_rmtree: error opening directory %s\n", path));
return -1;
}
/* We avoid using the buffer pool for this function, because it
* invokes recursively to an unknown depth. */
cur = mutt_buffer_new ();
mutt_buffer_increase_size (cur, _POSIX_PATH_MAX);
while ((de = readdir (dirp)))
{
if (!strcmp (".", de->d_name) || !strcmp ("..", de->d_name))
continue;
mutt_buffer_printf (cur, "%s/%s", path, de->d_name);
/* XXX make nonrecursive version */
if (stat(mutt_b2s (cur), &statbuf) == -1)
{
rc = 1;
continue;
}
if (S_ISDIR (statbuf.st_mode))
rc |= mutt_rmtree (mutt_b2s (cur));
else
rc |= unlink (mutt_b2s (cur));
}
closedir (dirp);
rc |= rmdir (path);
mutt_buffer_free (&cur);
return rc;
}
/* Create a temporary directory next to a file name */
static int mutt_mkwrapdir (const char *path, BUFFER *newfile, BUFFER *newdir)
{
const char *basename;
BUFFER *parent = NULL;
char *p;
int rc = 0;
parent = mutt_buffer_pool_get ();
mutt_buffer_strcpy (parent, NONULL (path));
if ((p = strrchr (parent->data, '/')))
{
*p = '\0';
basename = p + 1;
}
else
{
mutt_buffer_strcpy (parent, ".");
basename = path;
}
mutt_buffer_printf (newdir, "%s/%s", mutt_b2s (parent), ".muttXXXXXX");
if (mkdtemp(newdir->data) == NULL)
{
dprint(1, (debugfile, "mutt_mkwrapdir: mkdtemp() failed\n"));
rc = -1;
goto cleanup;
}
mutt_buffer_printf (newfile, "%s/%s", mutt_b2s (newdir), NONULL(basename));
cleanup:
mutt_buffer_pool_release (&parent);
return rc;
}
static int mutt_put_file_in_place (const char *path, const char *safe_file, const char *safe_dir)
{
int rv;
rv = safe_rename (safe_file, path);
unlink (safe_file);
rmdir (safe_dir);
return rv;
}
int safe_open (const char *path, int flags)
{
struct stat osb, nsb;
int fd;
BUFFER *safe_file = NULL;
BUFFER *safe_dir = NULL;
if (flags & O_EXCL)
{
safe_file = mutt_buffer_pool_get ();
safe_dir = mutt_buffer_pool_get ();
if (mutt_mkwrapdir (path, safe_file, safe_dir) == -1)
{
fd = -1;
goto cleanup;
}
if ((fd = open (mutt_b2s (safe_file), flags, 0600)) < 0)
{
rmdir (mutt_b2s (safe_dir));
goto cleanup;
}
/* NFS and I believe cygwin do not handle movement of open files well */
close (fd);
if (mutt_put_file_in_place (path, mutt_b2s (safe_file), mutt_b2s (safe_dir)) == -1)
{
fd = -1;
goto cleanup;
}
}
if ((fd = open (path, flags & ~O_EXCL, 0600)) < 0)
goto cleanup;
/* make sure the file is not symlink */
if (lstat (path, &osb) < 0 || fstat (fd, &nsb) < 0 ||
compare_stat(&osb, &nsb) == -1)
{
/* dprint (1, (debugfile, "safe_open(): %s is a symlink!\n", path)); */
close (fd);
fd = -1;
goto cleanup;
}
cleanup:
mutt_buffer_pool_release (&safe_file);
mutt_buffer_pool_release (&safe_dir);
return (fd);
}
/* when opening files for writing, make sure the file doesn't already exist
* to avoid race conditions.
*/
FILE *safe_fopen (const char *path, const char *mode)
{
if (mode[0] == 'w')
{
int fd;
int flags = O_CREAT | O_EXCL;
#ifdef O_NOFOLLOW
flags |= O_NOFOLLOW;
#endif
if (mode[1] == '+')
flags |= O_RDWR;
else
flags |= O_WRONLY;
if ((fd = safe_open (path, flags)) < 0)
return (NULL);
return (fdopen (fd, mode));
}
else
return (fopen (path, mode));
}
int safe_symlink(const char *oldpath, const char *newpath)
{
struct stat osb, nsb;
if (!oldpath || !newpath)
return -1;
if (unlink(newpath) == -1 && errno != ENOENT)
return -1;
if (oldpath[0] == '/')
{
if (symlink (oldpath, newpath) == -1)
return -1;
}
else
{
BUFFER *abs_oldpath = NULL;
abs_oldpath = mutt_buffer_pool_get ();
if (mutt_getcwd (abs_oldpath) == NULL)
{
mutt_buffer_pool_release (&abs_oldpath);
return -1;
}
mutt_buffer_addch (abs_oldpath, '/');
mutt_buffer_addstr (abs_oldpath, oldpath);
if (symlink (mutt_b2s (abs_oldpath), newpath) == -1)
{
mutt_buffer_pool_release (&abs_oldpath);
return -1;
}
mutt_buffer_pool_release (&abs_oldpath);
}
if (stat(oldpath, &osb) == -1 || stat(newpath, &nsb) == -1
|| compare_stat(&osb, &nsb) == -1)
{
unlink(newpath);
return -1;
}
return 0;
}
/* END lib.c transplant functions */