void redraw_screen(struct terminal *term)
{
int x, y, p = 0;
int cx = term->lcx, cy = term->lcy;
unsigned char *a;
int attrib = -1;
int mode = -1;
int l = 0;
struct term_spec *s;
if (!term->dirty || (term->master && is_blocked())) return;
a = init_str();
s = term->spec;
for (y = 0; y < term->y; y++)
for (x = 0; x < term->x; x++, p++) {
if (y == term->y - 1 && x == term->x - 1) break;
if (term->screen[p] == term->last_screen[p]) continue;
if ((term->screen[p] & 0x3800) == (term->last_screen[p] & 0x3800) && ((term->screen[p] & 0xff) == 0 || (term->screen[p] & 0xff) == 1 || (term->screen[p] & 0xff) == ' ') && ((term->last_screen[p] & 0xff) == 0 || (term->last_screen[p] & 0xff) == 1 || (term->last_screen[p] & 0xff) == ' ') && (x != term->cx || y != term->cy)) continue;
term->last_screen[p] = term->screen[p];
if (cx == x && cy == y) goto pc;/*PRINT_CHAR(p)*/
else if (cy == y && x - cx < 10 && x - cx > 0) {
int i;
for (i = x - cx; i >= 0; i--) PRINT_CHAR(p - i);
} else {
add_to_str(&a, &l, "\033[");
add_num_to_str(&a, &l, y + 1);
add_to_str(&a, &l, ";");
add_num_to_str(&a, &l, x + 1);
add_to_str(&a, &l, "H");
cx = x;
cy = y;
pc:
PRINT_CHAR(p);
}
}
if (l) {
if (s->col) add_to_str(&a, &l, "\033[37;40m");
add_to_str(&a, &l, "\033[0m");
if (s->mode == TERM_LINUX && s->m11_hack) add_to_str(&a, &l, "\033[10m");
if (s->mode == TERM_VT100) add_to_str(&a, &l, "\x0f");
}
term->lcx = cx;
term->lcy = cy;
if (term->cx != term->lcx || term->cy != term->lcy) {
term->lcx = term->cx;
term->lcy = term->cy;
add_to_str(&a, &l, "\033[");
add_num_to_str(&a, &l, term->cy + 1);
add_to_str(&a, &l, ";");
add_num_to_str(&a, &l, term->cx + 1);
add_to_str(&a, &l, "H");
}
if (l && term->master) want_draw();
hard_write(term->fdout, a, l);
if (l && term->master) done_draw();
mem_free(a);
term->dirty = 0;
}
static void x_update_driver_param(int w, int h)
{
int l=0;
if (n_wins!=1)return;
x_default_window_width=w;
x_default_window_height=h;
if (x_driver_param)mem_free(x_driver_param);
x_driver_param=init_str();
add_num_to_str(&x_driver_param,&l,x_default_window_width);
add_to_str(&x_driver_param,&l,"x");
add_num_to_str(&x_driver_param,&l,x_default_window_height);
}
void add_conv_str(unsigned char **s, int *l, unsigned char *b, int ll, int encode_special)
{
for (; ll > 0; ll--, b++) {
if ((unsigned char)*b < ' ') continue;
if (special_char(*b) && encode_special == 1) {
unsigned char h[4];
sprintf(cast_char h, "%%%02X", (unsigned)*b & 0xff);
add_to_str(s, l, h);
} else if (*b == '%' && encode_special <= -1 && ll > 2 && ((b[1] >= '0' && b[1] <= '9') || (b[1] >= 'A' && b[1] <= 'F') || (b[1] >= 'a' && b[1] <= 'f'))) {
unsigned char h = 0;
int i;
for (i = 1; i < 3; i++) {
if (b[i] >= '0' && b[i] <= '9') h = h * 16 + b[i] - '0';
if (b[i] >= 'A' && b[i] <= 'F') h = h * 16 + b[i] - 'A' + 10;
if (b[i] >= 'a' && b[i] <= 'f') h = h * 16 + b[i] - 'a' + 10;
}
if (h >= ' ') add_chr_to_str(s, l, h);
ll -= 2;
b += 2;
} else if (*b == ' ' && (!encode_special || encode_special == -1)) {
add_to_str(s, l, cast_uchar " ");
} else if (accept_char(*b) || encode_special == -2) {
add_chr_to_str(s, l, *b);
} else {
add_to_str(s, l, cast_uchar "&#");
add_num_to_str(s, l, (int)*b);
add_chr_to_str(s, l, ';');
}
}
}
char *tempnam(const char *dir, const char *pfx)
{
static int counter = 0;
unsigned char *d, *s, *a;
int l;
if (!(d = cast_uchar getenv("TMPDIR"))) {
if (dir) d = cast_uchar dir;
else if (!(d = cast_uchar getenv("TMP")) && !(d = cast_uchar getenv("TEMP"))) {
#ifdef P_tmpdir
d = cast_uchar(P_tmpdir);
#else
d = cast_uchar "/tmp";
#endif
}
}
l = 0;
s = init_str();
add_to_str(&s, &l, d);
if (s[0] && s[strlen(cast_const_char s) - 1] != '/') add_chr_to_str(&s, &l, '/');
add_to_str(&s, &l, cast_uchar pfx);
add_num_to_str(&s, &l, counter++);
a = cast_uchar strdup(cast_const_char s);
mem_free(s);
return cast_char a;
}
void http_got_header(struct connection *c, struct read_buffer *rb)
{
int cf;
int state = c->state != S_PROC ? S_GETH : S_PROC;
unsigned char *head;
unsigned char *cookie, *ch;
int a, h, version;
unsigned char *d;
struct cache_entry *e;
struct http_connection_info *info;
unsigned char *host = upcase(c->url[0]) != 'P' ? c->url : get_url_data(c->url);
set_timeout(c);
info = c->info;
if (rb->close == 2) {
unsigned char *h;
if (!c->tries && (h = get_host_name(host))) {
if (info->bl_flags & BL_NO_CHARSET) {
del_blacklist_entry(h, BL_NO_CHARSET);
} else {
add_blacklist_entry(h, BL_NO_CHARSET);
c->tries = -1;
}
mem_free(h);
}
setcstate(c, S_CANT_READ);
retry_connection(c);
return;
}
rb->close = 0;
again:
if ((a = get_header(rb)) == -1) {
setcstate(c, S_HTTP_ERROR);
abort_connection(c);
return;
}
if (!a) {
read_from_socket(c, c->sock1, rb, http_got_header);
setcstate(c, state);
return;
}
if (a != -2) {
head = mem_alloc(a + 1);
memcpy(head, rb->data, a);
head[a] = 0;
kill_buffer_data(rb, a);
} else {
head = stracpy("HTTP/0.9 200 OK\r\nContent-Type: text/html\r\n\r\n");
}
if (get_http_code(head, &h, &version) || h == 101) {
mem_free(head);
setcstate(c, S_HTTP_ERROR);
abort_connection(c);
return;
}
if (check_http_server_bugs(host, c->info, head) && is_connection_restartable(c)) {
mem_free(head);
setcstate(c, S_RESTART);
retry_connection(c);
return;
}
ch = head;
while ((cookie = parse_http_header(ch, "Set-Cookie", &ch))) {
unsigned char *host = upcase(c->url[0]) != 'P' ? c->url : get_url_data(c->url);
set_cookie(NULL, host, cookie);
mem_free(cookie);
}
if (h == 100) {
mem_free(head);
state = S_PROC;
goto again;
}
if (h < 200) {
mem_free(head);
setcstate(c, S_HTTP_ERROR);
abort_connection(c);
return;
}
if (h == 204) {
mem_free(head);
setcstate(c, S_HTTP_204);
http_end_request(c, 0);
return;
}
if (h == 304) {
mem_free(head);
setcstate(c, S_OK);
http_end_request(c, 1);
return;
}
if ((h == 500 || h == 502 || h == 503 || h == 504) && http_bugs.retry_internal_errors && is_connection_restartable(c)) {
/* !!! FIXME: wait some time ... */
mem_free(head);
setcstate(c, S_RESTART);
retry_connection(c);
return;
}
if (!c->cache && get_cache_entry(c->url, &c->cache)) {
mem_free(head);
setcstate(c, S_OUT_OF_MEM);
abort_connection(c);
return;
}
e = c->cache;
e->http_code = h;
if (e->head) mem_free(e->head);
e->head = head;
if ((d = parse_http_header(head, "Expires", NULL))) {
time_t t = parse_http_date(d);
if (t && e->expire_time != 1) e->expire_time = t;
mem_free(d);
}
if ((d = parse_http_header(head, "Pragma", NULL))) {
if (!casecmp(d, "no-cache", 8)) e->expire_time = 1;
mem_free(d);
}
if ((d = parse_http_header(head, "Cache-Control", NULL))) {
char *f = d;
while (1) {
while (*f && (*f == ' ' || *f == ',')) f++;
if (!*f) break;
if (!casecmp(f, "no-cache", 8) || !casecmp(f, "must-revalidate", 15)) {
e->expire_time = 1;
}
if (!casecmp(f, "max-age=", 8)) {
if (e->expire_time != 1) e->expire_time = time(NULL) + atoi(f + 8);
}
while (*f && *f != ',') f++;
}
mem_free(d);
}
#ifdef HAVE_SSL
if (c->ssl) {
int l = 0;
if (e->ssl_info) mem_free(e->ssl_info);
e->ssl_info = init_str();
add_num_to_str(&e->ssl_info, &l, SSL_get_cipher_bits(c->ssl, NULL));
add_to_str(&e->ssl_info, &l, "-bit ");
add_to_str(&e->ssl_info, &l, SSL_get_cipher_version(c->ssl));
add_to_str(&e->ssl_info, &l, " ");
add_to_str(&e->ssl_info, &l, (unsigned char *)SSL_get_cipher_name(c->ssl));
}
#endif
if (e->redirect) mem_free(e->redirect), e->redirect = NULL;
if (h == 301 || h == 302 || h == 303 || h == 307) {
if ((h == 302 || h == 307) && !e->expire_time) e->expire_time = 1;
if ((d = parse_http_header(e->head, "Location", NULL))) {
unsigned char *user, *ins;
unsigned char *newuser, *newpassword;
if (!parse_url(d, NULL, &user, NULL, NULL, NULL, &ins, NULL, NULL, NULL, NULL, NULL, NULL) && !user && ins && (newuser = get_user_name(host))) {
if (*newuser) {
int ins_off = ins - d;
newpassword = get_pass(host);
if (!newpassword) newpassword = stracpy("");
add_to_strn(&newuser, ":");
add_to_strn(&newuser, newpassword);
add_to_strn(&newuser, "@");
extend_str(&d, strlen(newuser));
ins = d + ins_off;
memmove(ins + strlen(newuser), ins, strlen(ins) + 1);
memcpy(ins, newuser, strlen(newuser));
mem_free(newpassword);
}
mem_free(newuser);
}
if (e->redirect) mem_free(e->redirect);
e->redirect = d;
e->redirect_get = h == 303;
}
}
if (!e->expire_time && strchr(c->url, POST_CHAR)) e->expire_time = 1;
info->close = 0;
info->length = -1;
info->version = version;
if ((d = parse_http_header(e->head, "Connection", NULL)) || (d = parse_http_header(e->head, "Proxy-Connection", NULL))) {
if (!strcasecmp(d, "close")) info->close = 1;
mem_free(d);
} else if (version < 11) info->close = 1;
cf = c->from;
c->from = 0;
if ((d = parse_http_header(e->head, "Content-Range", NULL))) {
if (strlen(d) > 6) {
d[5] = 0;
if (!(strcasecmp(d, "bytes")) && d[6] >= '0' && d[6] <= '9') {
#if defined(HAVE_STRTOLL)
long long f = strtoll(d + 6, NULL, 10);
#elif defined(HAVE_STRTOQ)
longlong f = strtoq(d + 6, NULL, 10);
#else
long f = strtol(d + 6, NULL, 10);
if (f == MAXLONG) f = -1;
#endif
if (f >= 0 && (off_t)f >= 0 && (off_t)f == f) c->from = f;
}
}
mem_free(d);
}
if (cf && !c->from && !c->unrestartable) c->unrestartable = 1;
if (c->from > cf || c->from < 0) {
setcstate(c, S_HTTP_ERROR);
abort_connection(c);
return;
}
if ((d = parse_http_header(e->head, "Content-Length", NULL))) {
unsigned char *ep;
#if defined(HAVE_STRTOLL)
long long l = strtoll(d, (char **)(void *)&ep, 10);
#elif defined(HAVE_STRTOQ)
longlong l = strtoq(d, (char **)(void *)&ep, 10);
#else
long l = strtol(d, (char **)(void *)&ep, 10);
if (l == MAXLONG) l = -1;
#endif
if (!*ep && l >= 0 && (off_t)l >= 0 && (off_t)l == l) {
if (!info->close || version >= 11) info->length = l;
if (c->from + l >= 0) c->est_length = c->from + l;
}
mem_free(d);
}
if ((d = parse_http_header(e->head, "Accept-Ranges", NULL))) {
if (!strcasecmp(d, "none") && !c->unrestartable) c->unrestartable = 1;
mem_free(d);
} else {
if (!c->unrestartable && !c->from) c->unrestartable = 1;
}
if (info->bl_flags & BL_NO_RANGE && !c->unrestartable) c->unrestartable = 1;
if ((d = parse_http_header(e->head, "Transfer-Encoding", NULL))) {
if (!strcasecmp(d, "chunked")) {
info->length = -2;
info->chunk_remaining = -1;
}
mem_free(d);
}
if (!info->close && info->length == -1) info->close = 1;
if ((d = parse_http_header(e->head, "Last-Modified", NULL))) {
if (e->last_modified && strcasecmp(e->last_modified, d)) {
delete_entry_content(e);
if (c->from) {
c->from = 0;
mem_free(d);
setcstate(c, S_MODIFIED);
retry_connection(c);
return;
}
}
if (!e->last_modified) e->last_modified = d;
else mem_free(d);
}
if (!e->last_modified && (d = parse_http_header(e->head, "Date", NULL)))
e->last_modified = d;
if (info->length == -1 || (version < 11 && info->close)) rb->close = 1;
read_http_data(c, rb);
}
void http_send_header(struct connection *c)
{
static unsigned char *accept_charset = NULL;
struct http_connection_info *info;
int http10 = http_bugs.http10;
struct cache_entry *e = NULL;
unsigned char *hdr;
unsigned char *h, *u;
int l = 0;
int la;
unsigned char *post;
unsigned char *host;
find_in_cache(c->url, &c->cache);
host = upcase(c->url[0]) != 'P' ? c->url : get_url_data(c->url);
set_timeout(c);
info = mem_calloc(sizeof(struct http_connection_info));
c->info = info;
if ((h = get_host_name(host))) {
info->bl_flags = get_blacklist_flags(h);
mem_free(h);
}
if (info->bl_flags & BL_HTTP10) http10 = 1;
info->http10 = http10;
post = strchr(host, POST_CHAR);
if (post) post++;
hdr = init_str();
if (!post) add_to_str(&hdr, &l, "GET ");
else {
add_to_str(&hdr, &l, "POST ");
c->unrestartable = 2;
}
if (upcase(c->url[0]) != 'P') add_to_str(&hdr, &l, "/");
if (!(u = get_url_data(c->url))) {
mem_free(hdr);
setcstate(c, S_BAD_URL);
http_end_request(c, 0);
return;
}
if (post && post < u) {
mem_free(hdr);
setcstate(c, S_BAD_URL);
http_end_request(c, 0);
return;
}
add_url_to_str(&hdr, &l, u);
if (!http10) add_to_str(&hdr, &l, " HTTP/1.1\r\n");
else add_to_str(&hdr, &l, " HTTP/1.0\r\n");
if ((h = get_host_name(host))) {
add_to_str(&hdr, &l, "Host: ");
add_to_str(&hdr, &l, h);
mem_free(h);
if ((h = get_port_str(host))) {
add_to_str(&hdr, &l, ":");
add_to_str(&hdr, &l, h);
mem_free(h);
}
add_to_str(&hdr, &l, "\r\n");
}
add_to_str(&hdr, &l, "User-Agent: ");
if (!(*http_bugs.fake_useragent)) {
add_to_str(&hdr, &l, "Links (" VERSION_STRING "; ");
add_to_str(&hdr, &l, system_name);
if (!F && !list_empty(terminals)) {
struct terminal *t = terminals.prev;
if (!t->spec->braille) {
add_to_str(&hdr, &l, "; ");
add_num_to_str(&hdr, &l, t->x);
add_to_str(&hdr, &l, "x");
add_num_to_str(&hdr, &l, t->y);
} else {
add_to_str(&hdr, &l, "; braille");
}
}
#ifdef G
if (F && drv) {
add_to_str(&hdr, &l, "; ");
add_to_str(&hdr, &l, drv->name);
}
#endif
add_to_str(&hdr, &l, ")\r\n");
}
else {
add_to_str(&hdr, &l, http_bugs.fake_useragent);
add_to_str(&hdr, &l, "\r\n");
}
switch (http_bugs.referer)
{
case REFERER_FAKE:
add_to_str(&hdr, &l, "Referer: ");
add_to_str(&hdr, &l, http_bugs.fake_referer);
add_to_str(&hdr, &l, "\r\n");
break;
case REFERER_SAME_URL:
add_to_str(&hdr, &l, "Referer: ");
add_url_to_str(&hdr, &l, host);
add_to_str(&hdr, &l, "\r\n");
break;
case REFERER_REAL_SAME_SERVER:
{
unsigned char *h, *j;
int brk = 1;
if ((h = get_host_name(host))) {
if ((j = get_host_name(c->prev_url))) {
if (!strcasecmp(h, j)) brk = 0;
mem_free(j);
}
mem_free(h);
}
if (brk) break;
/* fall through */
}
case REFERER_REAL:
{
unsigned char *ref;
unsigned char *user, *ins;
int ulen;
if (!(c->prev_url)) break; /* no referrer */
ref = stracpy(c->prev_url);
if (!parse_url(ref, NULL, &user, &ulen, NULL, NULL, &ins, NULL, NULL, NULL, NULL, NULL, NULL) && ulen && ins) {
memmove(user, ins, strlen(ins) + 1);
}
add_to_str(&hdr, &l, "Referer: ");
add_url_to_str(&hdr, &l, ref);
add_to_str(&hdr, &l, "\r\n");
mem_free(ref);
}
break;
}
add_to_str(&hdr, &l, "Accept: */*\r\n");
#if defined(HAVE_ZLIB) || defined(HAVE_BZIP2)
if (!http_bugs.no_compression && !(info->bl_flags & BL_NO_COMPRESSION)) {
int q = strlen(c->url);
if (q >= 2 && !strcasecmp(c->url + q - 2, ".Z")) goto skip_compress;
if (q >= 3 && !strcasecmp(c->url + q - 3, ".gz")) goto skip_compress;
if (q >= 4 && !strcasecmp(c->url + q - 4, ".bz2")) goto skip_compress;
add_to_str(&hdr, &l, "Accept-Encoding: ");
#if defined(HAVE_ZLIB)
add_to_str(&hdr, &l, "gzip, deflate, ");
#endif
#if defined(HAVE_BZIP2)
add_to_str(&hdr, &l, "bzip2, ");
#endif
hdr[l-2] = '\r';
hdr[l-1] = '\n';
skip_compress:
;
}
#endif
if (!(accept_charset)) {
int i;
unsigned char *cs, *ac;
int aclen = 0;
ac = init_str();
for (i = 0; (cs = get_cp_mime_name(i)); i++) {
if (aclen) add_to_str(&ac, &aclen, ", ");
else add_to_str(&ac, &aclen, "Accept-Charset: ");
add_to_str(&ac, &aclen, cs);
}
if (aclen) add_to_str(&ac, &aclen, "\r\n");
if ((accept_charset = malloc(strlen(ac) + 1))) strcpy(accept_charset, ac);
else accept_charset = "";
mem_free(ac);
}
if (!(info->bl_flags & BL_NO_CHARSET) && !http_bugs.no_accept_charset) add_to_str(&hdr, &l, accept_charset);
if (!(info->bl_flags & BL_NO_ACCEPT_LANGUAGE)) {
add_to_str(&hdr, &l, "Accept-Language: ");
la = l;
add_to_str(&hdr, &l, _(TEXT(T__ACCEPT_LANGUAGE), NULL));
add_to_str(&hdr, &l, ", ");
if (!strstr(hdr + la, "en,") && !strstr(hdr + la, "en;")) add_to_str(&hdr, &l, "en;q=0.2, ");
add_to_str(&hdr, &l, "*;q=0.1\r\n");
}
if (!http10) {
if (upcase(c->url[0]) != 'P') add_to_str(&hdr, &l, "Connection: ");
else add_to_str(&hdr, &l, "Proxy-Connection: ");
if (!post || !http_bugs.bug_post_no_keepalive) add_to_str(&hdr, &l, "Keep-Alive\r\n");
else add_to_str(&hdr, &l, "close\r\n");
}
if ((e = c->cache)) {
int code, vers;
if (get_http_code(e->head, &code, &vers) || code >= 400) goto skip_ifmod_and_range;
if (!e->incomplete && e->head && c->no_cache <= NC_IF_MOD) {
unsigned char *m;
if (e->last_modified) m = stracpy(e->last_modified);
else if ((m = parse_http_header(e->head, "Date", NULL))) ;
else if ((m = parse_http_header(e->head, "Expires", NULL))) ;
else goto skip_ifmod;
add_to_str(&hdr, &l, "If-Modified-Since: ");
add_to_str(&hdr, &l, m);
add_to_str(&hdr, &l, "\r\n");
mem_free(m);
}
skip_ifmod:
;
}
if (c->from && (c->est_length == -1 || c->from < c->est_length) && c->no_cache < NC_IF_MOD && !(info->bl_flags & BL_NO_RANGE)) {
/* If the cached entity is compressed and we turned off compression,
request the whole file */
if ((info->bl_flags & BL_NO_COMPRESSION || http_bugs.no_compression) && e) {
unsigned char *d;
if ((d = parse_http_header(e->head, "Transfer-Encoding", NULL))) {
mem_free(d);
goto skip_range;
}
}
add_to_str(&hdr, &l, "Range: bytes=");
add_num_to_str(&hdr, &l, c->from);
add_to_str(&hdr, &l, "-\r\n");
skip_range:
;
}
skip_ifmod_and_range:
if (c->no_cache >= NC_PR_NO_CACHE) add_to_str(&hdr, &l, "Pragma: no-cache\r\nCache-Control: no-cache\r\n");
if ((h = get_auth_string(c->url))) {
add_to_str(&hdr, &l, h);
mem_free(h);
}
if (post) {
unsigned char *pd = strchr(post, '\n');
if (pd) {
add_to_str(&hdr, &l, "Content-Type: ");
add_bytes_to_str(&hdr, &l, post, pd - post);
add_to_str(&hdr, &l, "\r\n");
post = pd + 1;
}
add_to_str(&hdr, &l, "Content-Length: ");
add_num_to_str(&hdr, &l, strlen(post) / 2);
add_to_str(&hdr, &l, "\r\n");
}
send_cookies(&hdr, &l, host);
add_to_str(&hdr, &l, "\r\n");
if (post) {
while (post[0] && post[1]) {
int h1, h2;
h1 = post[0] <= '9' ? (unsigned)post[0] - '0' : post[0] >= 'A' ? upcase(post[0]) - 'A' + 10 : 0;
if (h1 < 0 || h1 >= 16) h1 = 0;
h2 = post[1] <= '9' ? (unsigned)post[1] - '0' : post[1] >= 'A' ? upcase(post[1]) - 'A' + 10 : 0;
if (h2 < 0 || h2 >= 16) h2 = 0;
add_chr_to_str(&hdr, &l, h1 * 16 + h2);
post += 2;
}
}
write_to_socket(c, c->sock1, hdr, l, http_get_header);
mem_free(hdr);
setcstate(c, S_SENT);
}
static struct ftp_connection_info *add_file_cmd_to_str(struct connection *c)
{
unsigned char *d = get_url_data(c->url);
unsigned char *de;
int del;
unsigned char port_string[50];
struct ftp_connection_info *inf, *inf2;
unsigned char *s;
int l;
if (!d) {
internal("get_url_data failed");
setcstate(c, S_INTERNAL);
abort_connection(c);
return NULL;
}
de = init_str(), del = 0;
add_conv_str(&de, &del, d, strlen(cast_const_char d), -2);
d = de;
inf = mem_alloc(sizeof(struct ftp_connection_info));
memset(inf, 0, sizeof(struct ftp_connection_info));
l = 0;
s = init_str();
inf->pasv = ftp_options.passive_ftp;
#ifdef LINKS_2
if (*c->socks_proxy) inf->pasv = 1;
if (ftp_options.eprt_epsv || is_ipv6(c->sock1)) inf->eprt_epsv = 1;
#endif
c->info = inf;
if (!inf->pasv) {
int ps;
#ifdef SUPPORT_IPV6
if (is_ipv6(c->sock1)) {
ps = get_pasv_socket_ipv6(c, c->sock1, &c->sock2, port_string);
if (ps) {
mem_free(d);
mem_free(s);
return NULL;
}
} else
#endif
{
unsigned char pc[6];
ps = get_pasv_socket(c, c->sock1, &c->sock2, pc);
if (ps) {
mem_free(d);
mem_free(s);
return NULL;
}
if (inf->eprt_epsv)
sprintf(cast_char port_string, "|1|%d.%d.%d.%d|%d|", pc[0], pc[1], pc[2], pc[3], (pc[4] << 8) | pc[5]);
else
sprintf(cast_char port_string, "%d,%d,%d,%d,%d,%d", pc[0], pc[1], pc[2], pc[3], pc[4], pc[5]);
}
if (strlen(cast_const_char port_string) >= sizeof(port_string))
internal("buffer overflow in get_pasv_socket_ipv6: %d > %d", (int)strlen(cast_const_char port_string), (int)sizeof(port_string));
}
#ifdef HAVE_IPTOS
if (ftp_options.set_tos) {
int rx;
int on = IPTOS_THROUGHPUT;
EINTRLOOP(rx, setsockopt(c->sock2, IPPROTO_IP, IP_TOS, (char *)&on, sizeof(int)));
}
#endif
if (!(de = cast_uchar strchr(cast_const_char d, POST_CHAR))) de = d + strlen(cast_const_char d);
if (d == de || de[-1] == '/') {
inf->dir = 1;
inf->pending_commands = 4;
add_to_str(&s, &l, cast_uchar "TYPE A\r\n");
add_port_pasv(&s, &l, inf, port_string);
add_to_str(&s, &l, cast_uchar "CWD /");
add_bytes_to_str(&s, &l, d, de - d);
add_to_str(&s, &l, cast_uchar "\r\nLIST\r\n");
c->from = 0;
} else {
inf->dir = 0;
inf->pending_commands = 3;
add_to_str(&s, &l, cast_uchar "TYPE I\r\n");
add_port_pasv(&s, &l, inf, port_string);
if (c->from && c->no_cache < NC_IF_MOD) {
add_to_str(&s, &l, cast_uchar "REST ");
add_num_to_str(&s, &l, c->from);
add_to_str(&s, &l, cast_uchar "\r\n");
inf->rest_sent = 1;
inf->pending_commands++;
} else c->from = 0;
add_to_str(&s, &l, cast_uchar "RETR /");
add_bytes_to_str(&s, &l, d, de - d);
add_to_str(&s, &l, cast_uchar "\r\n");
}
inf->opc = inf->pending_commands;
if ((unsigned)l > MAXINT - sizeof(struct ftp_connection_info) - 1) overalloc();
inf2 = mem_realloc(inf, sizeof(struct ftp_connection_info) + l + 1);
strcpy(cast_char (inf = inf2)->cmdbuf, cast_const_char s);
mem_free(s);
c->info = inf;
mem_free(d);
return inf;
}
struct ftp_connection_info *add_file_cmd_to_str(struct connection *c)
{
unsigned char *d = get_url_data(c->url);
unsigned char *de;
int del;
unsigned char pc[6];
int ps;
struct ftp_connection_info *inf, *inf2;
unsigned char *s;
int l;
if (!d) {
internal("get_url_data failed");
setcstate(c, S_INTERNAL);
abort_connection(c);
return NULL;
}
de = init_str(), del = 0;
add_conv_str(&de, &del, d, strlen(d), -2);
d = de;
inf = mem_alloc(sizeof(struct ftp_connection_info));
memset(inf, 0, sizeof(struct ftp_connection_info));
l = 0;
s = init_str();
inf->pasv = ftp_options.passive_ftp;
if (*c->socks_proxy) inf->pasv = 1;
c->info = inf;
if (!inf->pasv) if ((ps = get_pasv_socket(c, c->sock1, &c->sock2, pc))) {
mem_free(d);
return NULL;
}
#ifdef HAVE_IPTOS
if (ftp_options.set_tos) {
int on = IPTOS_THROUGHPUT;
setsockopt(c->sock2, IPPROTO_IP, IP_TOS, (char *)&on, sizeof(int));
}
#endif
if (!(de = strchr(d, POST_CHAR))) de = d + strlen(d);
if (d == de || de[-1] == '/') {
inf->dir = 1;
inf->pending_commands = 4;
add_to_str(&s, &l, "TYPE A\r\n");
if (!inf->pasv) {
add_to_str(&s, &l, "PORT ");
add_num_to_str(&s, &l, pc[0]);
add_chr_to_str(&s, &l, ',');
add_num_to_str(&s, &l, pc[1]);
add_chr_to_str(&s, &l, ',');
add_num_to_str(&s, &l, pc[2]);
add_chr_to_str(&s, &l, ',');
add_num_to_str(&s, &l, pc[3]);
add_chr_to_str(&s, &l, ',');
add_num_to_str(&s, &l, pc[4]);
add_chr_to_str(&s, &l, ',');
add_num_to_str(&s, &l, pc[5]);
add_to_str(&s, &l, "\r\n");
} else {
add_to_str(&s, &l, "PASV\r\n");
}
add_to_str(&s, &l, "CWD /");
add_bytes_to_str(&s, &l, d, de - d);
add_to_str(&s, &l, "\r\nLIST\r\n");
c->from = 0;
} else {
inf->dir = 0;
inf->pending_commands = 3;
add_to_str(&s, &l, "TYPE I\r\n");
if (!inf->pasv) {
add_to_str(&s, &l, "PORT ");
add_num_to_str(&s, &l, pc[0]);
add_chr_to_str(&s, &l, ',');
add_num_to_str(&s, &l, pc[1]);
add_chr_to_str(&s, &l, ',');
add_num_to_str(&s, &l, pc[2]);
add_chr_to_str(&s, &l, ',');
add_num_to_str(&s, &l, pc[3]);
add_chr_to_str(&s, &l, ',');
add_num_to_str(&s, &l, pc[4]);
add_chr_to_str(&s, &l, ',');
add_num_to_str(&s, &l, pc[5]);
add_to_str(&s, &l, "\r\n");
} else {
add_to_str(&s, &l, "PASV\r\n");
}
if (c->from && c->no_cache < NC_IF_MOD) {
add_to_str(&s, &l, "REST ");
add_num_to_str(&s, &l, c->from);
add_to_str(&s, &l, "\r\n");
inf->rest_sent = 1;
inf->pending_commands++;
} else c->from = 0;
add_to_str(&s, &l, "RETR /");
add_bytes_to_str(&s, &l, d, de - d);
add_to_str(&s, &l, "\r\n");
}
inf->opc = inf->pending_commands;
if ((unsigned)l > MAXINT - sizeof(struct ftp_connection_info) - 1) overalloc();
inf2 = mem_realloc(inf, sizeof(struct ftp_connection_info) + l + 1);
strcpy((inf = inf2)->cmdbuf, s);
mem_free(s);
c->info = inf;
mem_free(d);
return inf;
}