int
BIO_gets(BIO *b, char *in, int inl)
{
int i;
long (*cb)(BIO *, int, const char *, int, long, long);
if ((b == NULL) || (b->method == NULL) || (b->method->bgets == NULL)) {
BIOerror(BIO_R_UNSUPPORTED_METHOD);
return (-2);
}
cb = b->callback;
if ((cb != NULL) &&
((i = (int)cb(b, BIO_CB_GETS, in, inl, 0L, 1L)) <= 0))
return (i);
if (!b->init) {
BIOerror(BIO_R_UNINITIALIZED);
return (-2);
}
i = b->method->bgets(b, in, inl);
if (cb != NULL)
i = (int)cb(b, BIO_CB_GETS|BIO_CB_RETURN, in, inl, 0L, (long)i);
return (i);
}
int
BIO_puts(BIO *b, const char *in)
{
int i;
long (*cb)(BIO *, int, const char *, int, long, long);
if ((b == NULL) || (b->method == NULL) || (b->method->bputs == NULL)) {
BIOerror(BIO_R_UNSUPPORTED_METHOD);
return (-2);
}
cb = b->callback;
if ((cb != NULL) &&
((i = (int)cb(b, BIO_CB_PUTS, in, 0, 0L, 1L)) <= 0))
return (i);
if (!b->init) {
BIOerror(BIO_R_UNINITIALIZED);
return (-2);
}
i = b->method->bputs(b, in);
if (i > 0)
b->num_write += (unsigned long)i;
if (cb != NULL)
i = (int)cb(b, BIO_CB_PUTS|BIO_CB_RETURN, in, 0, 0L, (long)i);
return (i);
}
int
BIO_write(BIO *b, const void *in, int inl)
{
int i;
long (*cb)(BIO *, int, const char *, int, long, long);
if (b == NULL)
return (0);
cb = b->callback;
if ((b->method == NULL) || (b->method->bwrite == NULL)) {
BIOerror(BIO_R_UNSUPPORTED_METHOD);
return (-2);
}
if ((cb != NULL) &&
((i = (int)cb(b, BIO_CB_WRITE, in, inl, 0L, 1L)) <= 0))
return (i);
if (!b->init) {
BIOerror(BIO_R_UNINITIALIZED);
return (-2);
}
i = b->method->bwrite(b, in, inl);
if (i > 0)
b->num_write += (unsigned long)i;
if (cb != NULL)
i = (int)cb(b, BIO_CB_WRITE|BIO_CB_RETURN, in, inl,
0L, (long)i);
return (i);
}
int
BIO_read(BIO *b, void *out, int outl)
{
int i;
long (*cb)(BIO *, int, const char *, int, long, long);
if ((b == NULL) || (b->method == NULL) || (b->method->bread == NULL)) {
BIOerror(BIO_R_UNSUPPORTED_METHOD);
return (-2);
}
cb = b->callback;
if ((cb != NULL) &&
((i = (int)cb(b, BIO_CB_READ, out, outl, 0L, 1L)) <= 0))
return (i);
if (!b->init) {
BIOerror(BIO_R_UNINITIALIZED);
return (-2);
}
i = b->method->bread(b, out, outl);
if (i > 0)
b->num_read += (unsigned long)i;
if (cb != NULL)
i = (int)cb(b, BIO_CB_READ|BIO_CB_RETURN, out, outl,
0L, (long)i);
return (i);
}
static int
mem_write(BIO *b, const char *in, int inl)
{
int ret = -1;
int blen;
BUF_MEM *bm;
bm = (BUF_MEM *)b->ptr;
if (in == NULL) {
BIOerror(BIO_R_NULL_PARAMETER);
goto end;
}
if (b->flags & BIO_FLAGS_MEM_RDONLY) {
BIOerror(BIO_R_WRITE_TO_READ_ONLY_BIO);
goto end;
}
BIO_clear_retry_flags(b);
blen = bm->length;
if (BUF_MEM_grow_clean(bm, blen + inl) != (blen + inl))
goto end;
memcpy(&(bm->data[blen]), in, inl);
ret = inl;
end:
return (ret);
}
long
BIO_callback_ctrl(BIO *b, int cmd,
void (*fp)(struct bio_st *, int, const char *, int, long, long))
{
long ret;
long (*cb)(BIO *, int, const char *, int, long, long);
if (b == NULL)
return (0);
if ((b->method == NULL) || (b->method->callback_ctrl == NULL)) {
BIOerror(BIO_R_UNSUPPORTED_METHOD);
return (-2);
}
cb = b->callback;
if ((cb != NULL) &&
((ret = cb(b, BIO_CB_CTRL, (void *)&fp, cmd, 0, 1L)) <= 0))
return (ret);
ret = b->method->callback_ctrl(b, cmd, fp);
if (cb != NULL)
ret = cb(b, BIO_CB_CTRL|BIO_CB_RETURN, (void *)&fp, cmd, 0, ret);
return (ret);
}
long
BIO_ctrl(BIO *b, int cmd, long larg, void *parg)
{
long ret;
long (*cb)(BIO *, int, const char *, int, long, long);
if (b == NULL)
return (0);
if ((b->method == NULL) || (b->method->ctrl == NULL)) {
BIOerror(BIO_R_UNSUPPORTED_METHOD);
return (-2);
}
cb = b->callback;
if ((cb != NULL) &&
((ret = cb(b, BIO_CB_CTRL, parg, cmd, larg, 1L)) <= 0))
return (ret);
ret = b->method->ctrl(b, cmd, larg, parg);
if (cb != NULL)
ret = cb(b, BIO_CB_CTRL|BIO_CB_RETURN, parg, cmd, larg, ret);
return (ret);
}
BIO *
BIO_new(BIO_METHOD *method)
{
BIO *ret = NULL;
ret = malloc(sizeof(BIO));
if (ret == NULL) {
BIOerror(ERR_R_MALLOC_FAILURE);
return (NULL);
}
if (!BIO_set(ret, method)) {
free(ret);
ret = NULL;
}
return (ret);
}
int
BIO_sock_init(void)
{
/*
* WSAStartup loads the winsock .dll and initializes the networking
* stack on Windows, or simply increases the reference count.
*/
static struct WSAData wsa_state = {0};
WORD version_requested = MAKEWORD(2, 2);
static int wsa_init_done = 0;
if (!wsa_init_done) {
if (WSAStartup(version_requested, &wsa_state) != 0) {
int err = WSAGetLastError();
SYSerror(err);
BIOerror(BIO_R_WSASTARTUP);
return (-1);
}
wsa_init_done = 1;
}
return (1);
}
BIO *
BIO_new_mem_buf(const void *buf, int len)
{
BIO *ret;
BUF_MEM *b;
size_t sz;
if (!buf) {
BIOerror(BIO_R_NULL_PARAMETER);
return NULL;
}
sz = (len < 0) ? strlen(buf) : (size_t)len;
if (!(ret = BIO_new(BIO_s_mem())))
return NULL;
b = (BUF_MEM *)ret->ptr;
b->data = (void *)buf; /* Trust in the BIO_FLAGS_MEM_RDONLY flag. */
b->length = sz;
b->max = sz;
ret->flags |= BIO_FLAGS_MEM_RDONLY;
/* Since this is static data retrying wont help */
ret->num = 0;
return ret;
}
static long
buffer_ctrl(BIO *b, int cmd, long num, void *ptr)
{
BIO *dbio;
BIO_F_BUFFER_CTX *ctx;
long ret = 1;
char *p1, *p2;
int r, i, *ip;
int ibs, obs;
ctx = (BIO_F_BUFFER_CTX *)b->ptr;
switch (cmd) {
case BIO_CTRL_RESET:
ctx->ibuf_off = 0;
ctx->ibuf_len = 0;
ctx->obuf_off = 0;
ctx->obuf_len = 0;
if (b->next_bio == NULL)
return (0);
ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
break;
case BIO_CTRL_INFO:
ret = (long)ctx->obuf_len;
break;
case BIO_C_GET_BUFF_NUM_LINES:
ret = 0;
p1 = ctx->ibuf;
for (i = 0; i < ctx->ibuf_len; i++) {
if (p1[ctx->ibuf_off + i] == '\n')
ret++;
}
break;
case BIO_CTRL_WPENDING:
ret = (long)ctx->obuf_len;
if (ret == 0) {
if (b->next_bio == NULL)
return (0);
ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
}
break;
case BIO_CTRL_PENDING:
ret = (long)ctx->ibuf_len;
if (ret == 0) {
if (b->next_bio == NULL)
return (0);
ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
}
break;
case BIO_C_SET_BUFF_READ_DATA:
if (num > ctx->ibuf_size) {
p1 = malloc(num);
if (p1 == NULL)
goto malloc_error;
free(ctx->ibuf);
ctx->ibuf = p1;
}
ctx->ibuf_off = 0;
ctx->ibuf_len = (int)num;
memcpy(ctx->ibuf, ptr, num);
ret = 1;
break;
case BIO_C_SET_BUFF_SIZE:
if (ptr != NULL) {
ip = (int *)ptr;
if (*ip == 0) {
ibs = (int)num;
obs = ctx->obuf_size;
}
else /* if (*ip == 1) */
{
ibs = ctx->ibuf_size;
obs = (int)num;
}
} else {
ibs = (int)num;
obs = (int)num;
}
p1 = ctx->ibuf;
p2 = ctx->obuf;
if ((ibs > DEFAULT_BUFFER_SIZE) && (ibs != ctx->ibuf_size)) {
p1 = malloc(num);
if (p1 == NULL)
goto malloc_error;
}
if ((obs > DEFAULT_BUFFER_SIZE) && (obs != ctx->obuf_size)) {
p2 = malloc(num);
if (p2 == NULL) {
if (p1 != ctx->ibuf)
free(p1);
goto malloc_error;
}
}
if (ctx->ibuf != p1) {
free(ctx->ibuf);
ctx->ibuf = p1;
ctx->ibuf_off = 0;
ctx->ibuf_len = 0;
ctx->ibuf_size = ibs;
}
if (ctx->obuf != p2) {
free(ctx->obuf);
ctx->obuf = p2;
ctx->obuf_off = 0;
ctx->obuf_len = 0;
ctx->obuf_size = obs;
}
break;
case BIO_C_DO_STATE_MACHINE:
if (b->next_bio == NULL)
return (0);
BIO_clear_retry_flags(b);
ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
BIO_copy_next_retry(b);
break;
case BIO_CTRL_FLUSH:
if (b->next_bio == NULL)
return (0);
if (ctx->obuf_len <= 0) {
ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
break;
}
for (;;) {
BIO_clear_retry_flags(b);
if (ctx->obuf_len > 0) {
r = BIO_write(b->next_bio,
&(ctx->obuf[ctx->obuf_off]),
ctx->obuf_len);
BIO_copy_next_retry(b);
if (r <= 0)
return ((long)r);
ctx->obuf_off += r;
ctx->obuf_len -= r;
} else {
ctx->obuf_len = 0;
ctx->obuf_off = 0;
break;
}
}
ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
break;
case BIO_CTRL_DUP:
dbio = (BIO *)ptr;
if (!BIO_set_read_buffer_size(dbio, ctx->ibuf_size) ||
!BIO_set_write_buffer_size(dbio, ctx->obuf_size))
ret = 0;
break;
default:
if (b->next_bio == NULL)
return (0);
ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
break;
}
return (ret);
malloc_error:
BIOerror(ERR_R_MALLOC_FAILURE);
return (0);
}
static long
linebuffer_ctrl(BIO *b, int cmd, long num, void *ptr)
{
BIO *dbio;
BIO_LINEBUFFER_CTX *ctx;
long ret = 1;
char *p;
int r;
int obs;
ctx = (BIO_LINEBUFFER_CTX *)b->ptr;
switch (cmd) {
case BIO_CTRL_RESET:
ctx->obuf_len = 0;
if (b->next_bio == NULL)
return (0);
ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
break;
case BIO_CTRL_INFO:
ret = (long)ctx->obuf_len;
break;
case BIO_CTRL_WPENDING:
ret = (long)ctx->obuf_len;
if (ret == 0) {
if (b->next_bio == NULL)
return (0);
ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
}
break;
case BIO_C_SET_BUFF_SIZE:
obs = (int)num;
p = ctx->obuf;
if ((obs > DEFAULT_LINEBUFFER_SIZE) && (obs != ctx->obuf_size)) {
p = malloc(num);
if (p == NULL)
goto malloc_error;
}
if (ctx->obuf != p) {
if (ctx->obuf_len > obs) {
ctx->obuf_len = obs;
}
memcpy(p, ctx->obuf, ctx->obuf_len);
free(ctx->obuf);
ctx->obuf = p;
ctx->obuf_size = obs;
}
break;
case BIO_C_DO_STATE_MACHINE:
if (b->next_bio == NULL)
return (0);
BIO_clear_retry_flags(b);
ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
BIO_copy_next_retry(b);
break;
case BIO_CTRL_FLUSH:
if (b->next_bio == NULL)
return (0);
if (ctx->obuf_len <= 0) {
ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
break;
}
for (;;) {
BIO_clear_retry_flags(b);
if (ctx->obuf_len > 0) {
r = BIO_write(b->next_bio,
ctx->obuf, ctx->obuf_len);
BIO_copy_next_retry(b);
if (r <= 0)
return ((long)r);
if (r < ctx->obuf_len)
memmove(ctx->obuf, ctx->obuf + r,
ctx->obuf_len - r);
ctx->obuf_len -= r;
} else {
ctx->obuf_len = 0;
ret = 1;
break;
}
}
ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
break;
case BIO_CTRL_DUP:
dbio = (BIO *)ptr;
if (!BIO_set_write_buffer_size(dbio, ctx->obuf_size))
ret = 0;
break;
default:
if (b->next_bio == NULL)
return (0);
ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
break;
}
return (ret);
malloc_error:
BIOerror(ERR_R_MALLOC_FAILURE);
return (0);
}
