int safe_asprintf (char **strp, const char *fmt, ...)
{
va_list ap;
int n;
va_start (ap, fmt);
n = vasprintf (strp, fmt, ap);
va_end (ap);
/* GNU libc man page for vasprintf(3) states that the value of *strp
* is undefined when the return code is -1.
*/
if (n < 0)
{
mutt_error _("Out of memory!");
sleep (1);
mutt_exit (1);
}
if (n == 0)
{
/* Mutt convention is to use NULL for 0-length strings */
FREE (strp); /* __FREE_CHECKED__ */
}
return n;
}
void safe_realloc (void *ptr, size_t siz)
{
void *r;
void **p = (void **)ptr;
if (siz == 0)
{
if (*p)
{
free (*p); /* __MEM_CHECKED__ */
*p = NULL;
}
return;
}
if (*p)
r = (void *) realloc (*p, siz); /* __MEM_CHECKED__ */
else
{
/* realloc(NULL, nbytes) doesn't seem to work under SunOS 4.1.x --- __MEM_CHECKED__ */
r = (void *) malloc (siz); /* __MEM_CHECKED__ */
}
if (!r)
{
mutt_error _("Out of memory!");
sleep (1);
mutt_exit (1);
}
*p = r;
}
/**
* mutt_getch - Read a character from the input buffer
* @retval obj Event to process
*
* The priority for reading events is:
* 1. UngetKeyEvents buffer
* 2. MacroEvents buffer
* 3. Keyboard
*
* This function can return:
* - Error `{ -1, OP_NULL }`
* - Timeout `{ -2, OP_NULL }`
*/
struct Event mutt_getch(void)
{
int ch;
struct Event err = { -1, OP_NULL }, ret;
struct Event timeout = { -2, OP_NULL };
if (UngetCount)
return UngetKeyEvents[--UngetCount];
if (!OptIgnoreMacroEvents && MacroBufferCount)
return MacroEvents[--MacroBufferCount];
SigInt = 0;
mutt_sig_allow_interrupt(1);
#ifdef KEY_RESIZE
/* ncurses 4.2 sends this when the screen is resized */
ch = KEY_RESIZE;
while (ch == KEY_RESIZE)
#endif /* KEY_RESIZE */
#ifdef USE_INOTIFY
ch = mutt_monitor_getch();
#else
ch = getch();
#endif /* USE_INOTIFY */
mutt_sig_allow_interrupt(0);
if (SigInt)
{
mutt_query_exit();
return err;
}
/* either timeout, a sigwinch (if timeout is set), or the terminal
* has been lost */
if (ch == ERR)
{
if (!isatty(0))
mutt_exit(1);
return timeout;
}
if ((ch & 0x80) && C_MetaKey)
{
/* send ALT-x as ESC-x */
ch &= ~0x80;
mutt_unget_event(ch, 0);
ret.ch = '\033';
ret.op = 0;
return ret;
}
ret.ch = ch;
ret.op = 0;
return (ch == ctrl('G')) ? err : ret;
}
void *safe_calloc (size_t nmemb, size_t size)
{
void *p;
if (!nmemb || !size)
return NULL;
if (((size_t) -1) / nmemb <= size)
{
mutt_error _("Integer overflow -- can't allocate memory!");
sleep (1);
mutt_exit (1);
}
if (!(p = calloc (nmemb, size)))
{
mutt_error _("Out of memory!");
sleep (1);
mutt_exit (1);
}
return p;
}
void *safe_malloc (size_t siz)
{
void *p;
if (siz == 0)
return 0;
if ((p = (void *) malloc (siz)) == 0) /* __MEM_CHECKED__ */
{
mutt_error _("Out of memory!");
sleep (1);
mutt_exit (1);
}
return (p);
}
/**
* mutt_query_exit - Ask the user if they want to leave NeoMutt
*
* This function is called when the user presses the abort key.
*/
void mutt_query_exit(void)
{
mutt_flushinp();
curs_set(1);
if (C_Timeout)
mutt_getch_timeout(-1); /* restore blocking operation */
if (mutt_yesorno(_("Exit NeoMutt?"), MUTT_YES) == MUTT_YES)
{
mutt_exit(1);
}
mutt_clear_error();
mutt_curs_set(-1);
SigInt = 0;
}
void *safe_calloc (size_t nmemb, size_t size)
{
void *p;
if (!nmemb || !size)
return NULL;
if (!(p = calloc (nmemb, size)))
{
mutt_error _("Out of memory!");
sleep (1);
mutt_exit (1);
}
return p;
}
/**
* crypt_init - Initialise the crypto backends
*
* This calls CryptModuleSpecs::init()
*/
void crypt_init(void)
{
#ifdef CRYPT_BACKEND_CLASSIC_PGP
if (
#ifdef CRYPT_BACKEND_GPGME
(!C_CryptUseGpgme)
#else
1
#endif
)
crypto_module_register(&CryptModPgpClassic);
#endif
#ifdef CRYPT_BACKEND_CLASSIC_SMIME
if (
#ifdef CRYPT_BACKEND_GPGME
(!C_CryptUseGpgme)
#else
1
#endif
)
crypto_module_register(&CryptModSmimeClassic);
#endif
if (C_CryptUseGpgme)
{
#ifdef CRYPT_BACKEND_GPGME
crypto_module_register(&CryptModPgpGpgme);
crypto_module_register(&CryptModSmimeGpgme);
#else
mutt_message(_("\"crypt_use_gpgme\" set"
" but not built with GPGME support"));
if (mutt_any_key_to_continue(NULL) == -1)
mutt_exit(1);
#endif
}
#if defined(CRYPT_BACKEND_CLASSIC_PGP) || \
defined(CRYPT_BACKEND_CLASSIC_SMIME) || defined(CRYPT_BACKEND_GPGME)
if (CRYPT_MOD_CALL_CHECK(PGP, init))
CRYPT_MOD_CALL(PGP, init)();
if (CRYPT_MOD_CALL_CHECK(SMIME, init))
CRYPT_MOD_CALL(SMIME, init)();
#endif
}
void crypt_init (void)
{
#ifdef CRYPT_BACKEND_CLASSIC_PGP
if (
#ifdef CRYPT_BACKEND_GPGME
(! option (OPTCRYPTUSEGPGME))
#else
1
#endif
)
crypto_module_register (&crypt_mod_pgp_classic);
#endif
#ifdef CRYPT_BACKEND_CLASSIC_SMIME
if (
#ifdef CRYPT_BACKEND_GPGME
(! option (OPTCRYPTUSEGPGME))
#else
1
#endif
)
crypto_module_register (&crypt_mod_smime_classic);
#endif
if (option (OPTCRYPTUSEGPGME))
{
#ifdef CRYPT_BACKEND_GPGME
crypto_module_register (&crypt_mod_pgp_gpgme);
crypto_module_register (&crypt_mod_smime_gpgme);
#else
mutt_message (_("\"crypt_use_gpgme\" set"
" but not built with GPGME support."));
if (mutt_any_key_to_continue (NULL) == -1)
mutt_exit(1);
#endif
}
#if defined CRYPT_BACKEND_CLASSIC_PGP || defined CRYPT_BACKEND_CLASSIC_SMIME || defined CRYPT_BACKEND_GPGME
if (CRYPT_MOD_CALL_CHECK (PGP, init))
(CRYPT_MOD_CALL (PGP, init)) ();
if (CRYPT_MOD_CALL_CHECK (SMIME, init))
(CRYPT_MOD_CALL (SMIME, init)) ();
#endif
}