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IMAP: Fix UNKNOWN default values #6179

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IMAP: Fix UNKNOWN default values #6179

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0295f2e
Refactor imap_mail()'s internal implementation to use zend_strings
Girgias Sep 21, 2020
e77e90d
Ensure strings passed to imap_mail() don't contain null bytes
Girgias Sep 21, 2020
b63564c
Use some proper null defaults in IMAP
Girgias Sep 21, 2020
d61bd51
Use a proper empty array default value for imap_open()
Girgias Sep 21, 2020
5ba4dca
Remove unused default_host argument from imap_headerinfo()
Girgias Sep 21, 2020
7e0ab1c
Fix imap_mail() refactoring on Windows
Girgias Sep 22, 2020
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124 changes: 63 additions & 61 deletions ext/imap/php_imap.c
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Original file line number Diff line number Diff line change
Expand Up @@ -702,10 +702,10 @@ static void php_imap_do_open(INTERNAL_FUNCTION_PARAMETERS, int persistent)
zend_long retries = 0, flags = NIL, cl_flags = NIL;
MAILSTREAM *imap_stream;
pils *imap_le_struct;
zval *params = NULL;
HashTable *params = NULL;
int argc = ZEND_NUM_ARGS();

if (zend_parse_parameters(argc, "PSS|lla", &mailbox, &user,
if (zend_parse_parameters(argc, "PSS|llh", &mailbox, &user,
&passwd, &flags, &retries, &params) == FAILURE) {
RETURN_THROWS();
}
Expand All @@ -723,7 +723,7 @@ static void php_imap_do_open(INTERNAL_FUNCTION_PARAMETERS, int persistent)
if (params) {
zval *disabled_auth_method;

if ((disabled_auth_method = zend_hash_str_find(Z_ARRVAL_P(params), "DISABLE_AUTHENTICATOR", sizeof("DISABLE_AUTHENTICATOR") - 1)) != NULL) {
if ((disabled_auth_method = zend_hash_str_find(params, "DISABLE_AUTHENTICATOR", sizeof("DISABLE_AUTHENTICATOR") - 1)) != NULL) {
switch (Z_TYPE_P(disabled_auth_method)) {
case IS_STRING:
if (Z_STRLEN_P(disabled_auth_method) > 1) {
Expand Down Expand Up @@ -866,7 +866,7 @@ PHP_FUNCTION(imap_append)
pils *imap_le_struct;
STRING st;

if (zend_parse_parameters(ZEND_NUM_ARGS(), "rSS|SS", &streamind, &folder, &message, &flags, &internal_date) == FAILURE) {
if (zend_parse_parameters(ZEND_NUM_ARGS(), "rSS|S!S!", &streamind, &folder, &message, &flags, &internal_date) == FAILURE) {
RETURN_THROWS();
}

Expand Down Expand Up @@ -1603,15 +1603,14 @@ PHP_FUNCTION(imap_undelete)
PHP_FUNCTION(imap_headerinfo)
{
zval *streamind;
zend_string *defaulthost = NULL;
int argc = ZEND_NUM_ARGS();
zend_long msgno, fromlength, subjectlength;
pils *imap_le_struct;
MESSAGECACHE *cache;
ENVELOPE *en;
char dummy[2000], fulladdress[MAILTMPLEN + 1];

if (zend_parse_parameters(argc, "rl|llS", &streamind, &msgno, &fromlength, &subjectlength, &defaulthost) == FAILURE) {
if (zend_parse_parameters(argc, "rl|ll", &streamind, &msgno, &fromlength, &subjectlength) == FAILURE) {
RETURN_THROWS();
}

Expand Down Expand Up @@ -2647,7 +2646,7 @@ PHP_FUNCTION(imap_sort)
SEARCHPGM *spg=NIL;
int argc = ZEND_NUM_ARGS();

if (zend_parse_parameters(argc, "rll|lSS", &streamind, &pgm, &rev, &flags, &criteria, &charset) == FAILURE) {
if (zend_parse_parameters(argc, "rll|lS!S!", &streamind, &pgm, &rev, &flags, &criteria, &charset) == FAILURE) {
RETURN_THROWS();
}

Expand All @@ -2665,7 +2664,7 @@ PHP_FUNCTION(imap_sort)
RETURN_FALSE;
}
}
if (argc >= 5) {
if (criteria) {
search_criteria = estrndup(ZSTR_VAL(criteria), ZSTR_LEN(criteria));
spg = mail_criteria(search_criteria);
efree(search_criteria);
Expand All @@ -2678,7 +2677,7 @@ PHP_FUNCTION(imap_sort)
mypgm->function = (short) pgm;
mypgm->next = NIL;

slst = mail_sort(imap_le_struct->imap_stream, (argc == 6 ? ZSTR_VAL(charset) : NIL), spg, mypgm, (argc >= 4 ? flags : NIL));
slst = mail_sort(imap_le_struct->imap_stream, (charset ? ZSTR_VAL(charset) : NIL), spg, mypgm, (argc >= 4 ? flags : NIL));
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Suggested change
slst = mail_sort(imap_le_struct->imap_stream, (charset ? ZSTR_VAL(charset) : NIL), spg, mypgm, (argc >= 4 ? flags : NIL));
slst = mail_sort(imap_le_struct->imap_stream, (charset ? ZSTR_VAL(charset) : NIL), spg, mypgm, flags;

to remove argc dependency. NIL is defined as 0.


if (spg && !(flags & SE_FREE)) {
mail_free_searchpgm(&spg);
Expand Down Expand Up @@ -3411,7 +3410,8 @@ PHP_FUNCTION(imap_mail_compose)
/* }}} */

/* {{{ _php_imap_mail */
int _php_imap_mail(char *to, char *subject, char *message, char *headers, char *cc, char *bcc, char* rpath)
bool _php_imap_mail(zend_string *to, zend_string *subject, zend_string *message, zend_string *headers,
zend_string *cc, zend_string *bcc, zend_string* rpath)
{
#ifdef PHP_WIN32
int tsm_err;
Expand All @@ -3420,6 +3420,9 @@ int _php_imap_mail(char *to, char *subject, char *message, char *headers, char *
int ret;
#endif

ZEND_ASSERT(to && ZSTR_LEN(to) != 0);
ZEND_ASSERT(subject && ZSTR_LEN(subject) != 0);

#ifdef PHP_WIN32
char *tempMailTo;
char *tsm_errmsg = NULL;
Expand All @@ -3428,56 +3431,55 @@ int _php_imap_mail(char *to, char *subject, char *message, char *headers, char *
size_t offset, bufferLen = 0;
size_t bt_len;

/* Add "To" field's necessary buffer length */
bufferLen += ZSTR_LEN(to) + 6;
if (headers) {
bufferLen += strlen(headers);
}
if (to) {
bufferLen += strlen(to) + 6;
bufferLen += ZSTR_LEN(headers);
}
if (cc) {
bufferLen += strlen(cc) + 6;
bufferLen += ZSTR_LEN(cc) + 6;
}

#define PHP_IMAP_CLEAN if (bufferTo) efree(bufferTo); if (bufferCc) efree(bufferCc); if (bufferBcc) efree(bufferBcc); if (bufferHeader) efree(bufferHeader);
#define PHP_IMAP_BAD_DEST PHP_IMAP_CLEAN; efree(tempMailTo); return (BAD_MSG_DESTINATION);

bufferHeader = (char *)safe_emalloc(bufferLen, 1, 1);
memset(bufferHeader, 0, bufferLen);
if (to && *to) {
strlcat(bufferHeader, "To: ", bufferLen + 1);
strlcat(bufferHeader, to, bufferLen + 1);
strlcat(bufferHeader, "\r\n", bufferLen + 1);
tempMailTo = estrdup(to);
bt_len = strlen(to);
bufferTo = (char *)safe_emalloc(bt_len, 1, 1);
bt_len++;
offset = 0;
addr = NULL;
rfc822_parse_adrlist(&addr, tempMailTo, "NO HOST");
while (addr) {
if (addr->host == NULL || strcmp(addr->host, ERRHOST) == 0) {
PHP_IMAP_BAD_DEST;
} else {
bufferTo = safe_erealloc(bufferTo, bt_len, 1, strlen(addr->mailbox));
bt_len += strlen(addr->mailbox);
bufferTo = safe_erealloc(bufferTo, bt_len, 1, strlen(addr->host));
bt_len += strlen(addr->host);
offset += slprintf(bufferTo + offset, bt_len - offset, "%s@%s,", addr->mailbox, addr->host);
}
addr = addr->next;
}
efree(tempMailTo);
if (offset>0) {
bufferTo[offset-1] = 0;

/* Handle "To" Field */
strlcat(bufferHeader, "To: ", bufferLen + 1);
strlcat(bufferHeader, ZSTR_VAL(to), bufferLen + 1);
strlcat(bufferHeader, "\r\n", bufferLen + 1);
tempMailTo = estrdup(ZSTR_VAL(to));
bt_len = ZSTR_LEN(to);
bufferTo = (char *)safe_emalloc(bt_len, 1, 1);
bt_len++;
offset = 0;
addr = NULL;
rfc822_parse_adrlist(&addr, tempMailTo, "NO HOST");
while (addr) {
if (addr->host == NULL || strcmp(addr->host, ERRHOST) == 0) {
PHP_IMAP_BAD_DEST;
} else {
bufferTo = safe_erealloc(bufferTo, bt_len, 1, strlen(addr->mailbox));
bt_len += strlen(addr->mailbox);
bufferTo = safe_erealloc(bufferTo, bt_len, 1, strlen(addr->host));
bt_len += strlen(addr->host);
offset += slprintf(bufferTo + offset, bt_len - offset, "%s@%s,", addr->mailbox, addr->host);
}
addr = addr->next;
}
efree(tempMailTo);
if (offset>0) {
bufferTo[offset-1] = 0;
}

if (cc && *cc) {
if (cc && ZSTR_LEN(cc) != 0) {
strlcat(bufferHeader, "Cc: ", bufferLen + 1);
strlcat(bufferHeader, cc, bufferLen + 1);
strlcat(bufferHeader, ZSTR_VAL(cc), bufferLen + 1);
strlcat(bufferHeader, "\r\n", bufferLen + 1);
tempMailTo = estrdup(cc);
bt_len = strlen(cc);
tempMailTo = estrdup(ZSTR_VAL(cc));
bt_len = ZSTR_LEN(cc);
bufferCc = (char *)safe_emalloc(bt_len, 1, 1);
bt_len++;
offset = 0;
Expand All @@ -3501,9 +3503,9 @@ int _php_imap_mail(char *to, char *subject, char *message, char *headers, char *
}
}

if (bcc && *bcc) {
tempMailTo = estrdup(bcc);
bt_len = strlen(bcc);
if (bcc && ZSTR_LEN(bcc)) {
tempMailTo = estrdup(ZSTR_VAL(bcc));
bt_len = ZSTR_LEN(bcc);
bufferBcc = (char *)safe_emalloc(bt_len, 1, 1);
bt_len++;
offset = 0;
Expand All @@ -3527,11 +3529,12 @@ int _php_imap_mail(char *to, char *subject, char *message, char *headers, char *
}
}

if (headers && *headers) {
strlcat(bufferHeader, headers, bufferLen + 1);
if (headers && ZSTR_LEN(headers)) {
strlcat(bufferHeader, ZSTR_VAL(headers), bufferLen + 1);
}

if (TSendMail(INI_STR("SMTP"), &tsm_err, &tsm_errmsg, bufferHeader, subject, bufferTo, message, bufferCc, bufferBcc, rpath) != SUCCESS) {
if (TSendMail(INI_STR("SMTP"), &tsm_err, &tsm_errmsg, bufferHeader, ZSTR_VAL(subject),
bufferTo, ZSTR_VAL(message), bufferCc, bufferBcc, ZSTR_VAL(rpath)) != SUCCESS) {
if (tsm_errmsg) {
php_error_docref(NULL, E_WARNING, "%s", tsm_errmsg);
efree(tsm_errmsg);
Expand All @@ -3548,15 +3551,15 @@ int _php_imap_mail(char *to, char *subject, char *message, char *headers, char *
}
sendmail = popen(INI_STR("sendmail_path"), "w");
if (sendmail) {
if (rpath && rpath[0]) fprintf(sendmail, "From: %s\n", rpath);
fprintf(sendmail, "To: %s\n", to);
if (cc && cc[0]) fprintf(sendmail, "Cc: %s\n", cc);
if (bcc && bcc[0]) fprintf(sendmail, "Bcc: %s\n", bcc);
fprintf(sendmail, "Subject: %s\n", subject);
if (ZSTR_LEN(rpath) != 0) fprintf(sendmail, "From: %s\n", ZSTR_VAL(rpath));
fprintf(sendmail, "To: %s\n", ZSTR_VAL(to));
if (ZSTR_LEN(cc) != 0) fprintf(sendmail, "Cc: %s\n", ZSTR_VAL(cc));
if (ZSTR_LEN(bcc) != 0) fprintf(sendmail, "Bcc: %s\n", ZSTR_VAL(bcc));
fprintf(sendmail, "Subject: %s\n", ZSTR_VAL(subject));
if (headers != NULL) {
fprintf(sendmail, "%s\n", headers);
fprintf(sendmail, "%s\n", ZSTR_VAL(headers));
}
fprintf(sendmail, "\n%s\n", message);
fprintf(sendmail, "\n%s\n", ZSTR_VAL(message));
ret = pclose(sendmail);

return ret != -1;
Expand All @@ -3575,7 +3578,7 @@ PHP_FUNCTION(imap_mail)
zend_string *to=NULL, *message=NULL, *headers=NULL, *subject=NULL, *cc=NULL, *bcc=NULL, *rpath=NULL;
int argc = ZEND_NUM_ARGS();

if (zend_parse_parameters(argc, "SSS|SSSS", &to, &subject, &message,
if (zend_parse_parameters(argc, "PPP|P!P!P!P!", &to, &subject, &message,
&headers, &cc, &bcc, &rpath) == FAILURE) {
RETURN_THROWS();
}
Expand All @@ -3598,8 +3601,7 @@ PHP_FUNCTION(imap_mail)
php_error_docref(NULL, E_WARNING, "No message string in mail command");
}

if (_php_imap_mail(ZSTR_VAL(to), ZSTR_VAL(subject), ZSTR_VAL(message), headers?ZSTR_VAL(headers):NULL, cc?ZSTR_VAL(cc):NULL,
bcc?ZSTR_VAL(bcc):NULL, rpath?ZSTR_VAL(rpath):NULL)) {
if (_php_imap_mail(to, subject, message, headers, cc, bcc, rpath)) {
RETURN_TRUE;
} else {
RETURN_FALSE;
Expand Down
16 changes: 5 additions & 11 deletions ext/imap/php_imap.stub.php
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Original file line number Diff line number Diff line change
Expand Up @@ -5,7 +5,7 @@
/**
* @return resource|false
*/
function imap_open(string $mailbox, string $user, string $password, int $options = 0, int $n_retries = 0, array $params = UNKNOWN) {}
function imap_open(string $mailbox, string $user, string $password, int $options = 0, int $n_retries = 0, array $params = []) {}

/**
* @param resource $stream_id
Expand All @@ -27,13 +27,7 @@ function imap_num_recent($stream_id): int|false {}
function imap_headers($stream_id): array|false {}

/** @param resource $stream_id */
function imap_headerinfo($stream_id, int $msg_no, int $from_length = 0, int $subject_length = 0, string $default_host = UNKNOWN): stdClass|false {}

/**
* @param resource $stream_id
* @alias imap_headerinfo
*/
function imap_header($stream_id, int $msg_no, int $from_length = 0, int $subject_length = 0, string $default_host = UNKNOWN): stdClass|false {}
function imap_headerinfo($stream_id, int $msg_no, int $from_length = 0, int $subject_length = 0): stdClass|false {}

function imap_rfc822_parse_headers(string $headers, string $default_host = "UNKNOWN"): stdClass {}

Expand Down Expand Up @@ -148,7 +142,7 @@ function imap_subscribe($stream_id, string $mailbox): bool {}
function imap_unsubscribe($stream_id, string $mailbox): bool {}

/** @param resource $stream_id */
function imap_append($stream_id, string $folder, string $message, string $options = UNKNOWN, string $internal_date = UNKNOWN): bool {}
function imap_append($stream_id, string $folder, string $message, ?string $options = null, ?string $internal_date = null): bool {}

/** @param resource $stream_id */
function imap_ping($stream_id): bool {}
Expand Down Expand Up @@ -180,7 +174,7 @@ function imap_setflag_full($stream_id, string $sequence, string $flag, int $opti
function imap_clearflag_full($stream_id, string $sequence, string $flag, int $options = 0): bool {}

/** @param resource $stream_id */
function imap_sort($stream_id, int $criteria, int $reverse, int $options = 0, string $search_criteria = UNKNOWN, string $charset = UNKNOWN): array|false {}
function imap_sort($stream_id, int $criteria, int $reverse, int $options = 0, ?string $search_criteria = null, ?string $charset = null): array|false {}

/** @param resource $stream_id */
function imap_uid($stream_id, int $msg_no): int|false {}
Expand Down Expand Up @@ -258,4 +252,4 @@ function imap_setacl($stream_id, string $mailbox, string $id, string $rights): b
function imap_getacl($stream_id, string $mailbox): array|false {}
#endif

function imap_mail(string $to, string $subject, string $message, string $additional_headers = UNKNOWN, string $cc = UNKNOWN, string $bcc = UNKNOWN, string $rpath = UNKNOWN): bool {}
function imap_mail(string $to, string $subject, string $message, ?string $additional_headers = null, ?string $cc = null, ?string $bcc = null, ?string $rpath = null): bool {}
24 changes: 10 additions & 14 deletions ext/imap/php_imap_arginfo.h
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Original file line number Diff line number Diff line change
@@ -1,13 +1,13 @@
/* This is a generated file, edit the .stub.php file instead.
* Stub hash: 4991f82d78672ab23044864fa6dd75851952965c */
* Stub hash: e501d6869d721ad720a1a7c8b597b96e9591d5ed */

ZEND_BEGIN_ARG_INFO_EX(arginfo_imap_open, 0, 0, 3)
ZEND_ARG_TYPE_INFO(0, mailbox, IS_STRING, 0)
ZEND_ARG_TYPE_INFO(0, user, IS_STRING, 0)
ZEND_ARG_TYPE_INFO(0, password, IS_STRING, 0)
ZEND_ARG_TYPE_INFO_WITH_DEFAULT_VALUE(0, options, IS_LONG, 0, "0")
ZEND_ARG_TYPE_INFO_WITH_DEFAULT_VALUE(0, n_retries, IS_LONG, 0, "0")
ZEND_ARG_TYPE_INFO(0, params, IS_ARRAY, 0)
ZEND_ARG_TYPE_INFO_WITH_DEFAULT_VALUE(0, params, IS_ARRAY, 0, "[]")
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(arginfo_imap_reopen, 0, 2, _IS_BOOL, 0)
Expand Down Expand Up @@ -37,11 +37,8 @@ ZEND_BEGIN_ARG_WITH_RETURN_OBJ_TYPE_MASK_EX(arginfo_imap_headerinfo, 0, 2, stdCl
ZEND_ARG_TYPE_INFO(0, msg_no, IS_LONG, 0)
ZEND_ARG_TYPE_INFO_WITH_DEFAULT_VALUE(0, from_length, IS_LONG, 0, "0")
ZEND_ARG_TYPE_INFO_WITH_DEFAULT_VALUE(0, subject_length, IS_LONG, 0, "0")
ZEND_ARG_TYPE_INFO(0, default_host, IS_STRING, 0)
ZEND_END_ARG_INFO()

#define arginfo_imap_header arginfo_imap_headerinfo

ZEND_BEGIN_ARG_WITH_RETURN_OBJ_INFO_EX(arginfo_imap_rfc822_parse_headers, 0, 1, stdClass, 0)
ZEND_ARG_TYPE_INFO(0, headers, IS_STRING, 0)
ZEND_ARG_TYPE_INFO_WITH_DEFAULT_VALUE(0, default_host, IS_STRING, 0, "\"UNKNOWN\"")
Expand Down Expand Up @@ -173,8 +170,8 @@ ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(arginfo_imap_append, 0, 3, _IS_BOOL, 0)
ZEND_ARG_INFO(0, stream_id)
ZEND_ARG_TYPE_INFO(0, folder, IS_STRING, 0)
ZEND_ARG_TYPE_INFO(0, message, IS_STRING, 0)
ZEND_ARG_TYPE_INFO(0, options, IS_STRING, 0)
ZEND_ARG_TYPE_INFO(0, internal_date, IS_STRING, 0)
ZEND_ARG_TYPE_INFO_WITH_DEFAULT_VALUE(0, options, IS_STRING, 1, "null")
ZEND_ARG_TYPE_INFO_WITH_DEFAULT_VALUE(0, internal_date, IS_STRING, 1, "null")
ZEND_END_ARG_INFO()

#define arginfo_imap_ping arginfo_imap_expunge
Expand Down Expand Up @@ -217,8 +214,8 @@ ZEND_BEGIN_ARG_WITH_RETURN_TYPE_MASK_EX(arginfo_imap_sort, 0, 3, MAY_BE_ARRAY|MA
ZEND_ARG_TYPE_INFO(0, criteria, IS_LONG, 0)
ZEND_ARG_TYPE_INFO(0, reverse, IS_LONG, 0)
ZEND_ARG_TYPE_INFO_WITH_DEFAULT_VALUE(0, options, IS_LONG, 0, "0")
ZEND_ARG_TYPE_INFO(0, search_criteria, IS_STRING, 0)
ZEND_ARG_TYPE_INFO(0, charset, IS_STRING, 0)
ZEND_ARG_TYPE_INFO_WITH_DEFAULT_VALUE(0, search_criteria, IS_STRING, 1, "null")
ZEND_ARG_TYPE_INFO_WITH_DEFAULT_VALUE(0, charset, IS_STRING, 1, "null")
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_WITH_RETURN_TYPE_MASK_EX(arginfo_imap_uid, 0, 2, MAY_BE_LONG|MAY_BE_FALSE)
Expand Down Expand Up @@ -342,10 +339,10 @@ ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(arginfo_imap_mail, 0, 3, _IS_BOOL, 0)
ZEND_ARG_TYPE_INFO(0, to, IS_STRING, 0)
ZEND_ARG_TYPE_INFO(0, subject, IS_STRING, 0)
ZEND_ARG_TYPE_INFO(0, message, IS_STRING, 0)
ZEND_ARG_TYPE_INFO(0, additional_headers, IS_STRING, 0)
ZEND_ARG_TYPE_INFO(0, cc, IS_STRING, 0)
ZEND_ARG_TYPE_INFO(0, bcc, IS_STRING, 0)
ZEND_ARG_TYPE_INFO(0, rpath, IS_STRING, 0)
ZEND_ARG_TYPE_INFO_WITH_DEFAULT_VALUE(0, additional_headers, IS_STRING, 1, "null")
ZEND_ARG_TYPE_INFO_WITH_DEFAULT_VALUE(0, cc, IS_STRING, 1, "null")
ZEND_ARG_TYPE_INFO_WITH_DEFAULT_VALUE(0, bcc, IS_STRING, 1, "null")
ZEND_ARG_TYPE_INFO_WITH_DEFAULT_VALUE(0, rpath, IS_STRING, 1, "null")
ZEND_END_ARG_INFO()


Expand Down Expand Up @@ -440,7 +437,6 @@ static const zend_function_entry ext_functions[] = {
ZEND_FE(imap_num_recent, arginfo_imap_num_recent)
ZEND_FE(imap_headers, arginfo_imap_headers)
ZEND_FE(imap_headerinfo, arginfo_imap_headerinfo)
ZEND_FALIAS(imap_header, imap_headerinfo, arginfo_imap_header)
ZEND_FE(imap_rfc822_parse_headers, arginfo_imap_rfc822_parse_headers)
ZEND_FE(imap_rfc822_write_address, arginfo_imap_rfc822_write_address)
ZEND_FE(imap_rfc822_parse_adrlist, arginfo_imap_rfc822_parse_adrlist)
Expand Down