ftp/ftpd/security.c

127 block_read(int fd, void *buf, size_t len)
131     while(len) {
132 	b = read(fd, p, len);
137 	len -= b;
144 block_write(int fd, void *buf, size_t len)
148     while(len) {
149 	b = write(fd, p, len);
152 	len -= b;
161     int len;
165     b = block_read(fd, &len, sizeof(len));
170     len = ntohl(len);
171     tmp = realloc(buf->data, len);
175     b = block_read(fd, buf->data, len);
180     buf->size = (*mech->decode)(app_data, buf->data, len, data_prot);
186 buffer_read(struct buffer *buf, void *dataptr, size_t len)
188     len = min(len, buf->size - buf->index);
189     memcpy(dataptr, (char*)buf->data + buf->index, len);
190     buf->index += len;
191     return len;
195 buffer_write(struct buffer *buf, void *dataptr, size_t len)
197     if(buf->index + len > buf->size) {
202 	    tmp = realloc(buf->data, buf->index + len);
206 	buf->size = buf->index + len;
208     memcpy((char*)buf->data + buf->index, dataptr, len);
209     buf->index += len;
210     return len;
216     size_t len;
227     len = buffer_read(&in_buffer, dataptr, length);
228     length -= len;
229     rx += len;
230     dataptr = (char*)dataptr + len;
243 	len = buffer_read(&in_buffer, dataptr, length);
244 	length -= len;
245 	rx += len;
246 	dataptr = (char*)dataptr + len;
281     int len = buffer_size;
287     len -= (*mech->overhead)(app_data, data_prot, len);
289 	if(length < len)
290 	    len = length;
291 	sec_send(fd, dataptr, len);
292 	length -= len;
293 	dataptr += len;
294 	tx += len;
307 	int len;
308 	len = vasprintf(&buf, fmt, ap);
309 	if (len == -1)
310 	    return len;
311 	ret = buffer_write(&out_buffer, buf, len);
346     int len;
351     len = base64_decode(s + 4, buf); /* XXX */
353     len = (*mech->decode)(app_data, buf, len, level);
354     if(len < 0)
357     buf[len] = '\0';
363     if(buf[len-1] == '\n')
364 	buf[len-1] = '\0';
375     int len;
383     len = (*mech->encode)(app_data, buf, strlen(buf), command_prot, &enc);
385     if(len < 0) {
389     if(base64_encode(enc, len, &buf) < 0){
471 	size_t len;
472 	len = base64_decode(auth_data, buf);
473 	(*mech->adat)(app_data, buf, len);
546     size_t len, buf_size;
557     len = base64_decode(msg, buf);
559     if(len == (size_t)-1) {
564     len = (*mech->decode)(app_data, buf, len, level);
565     if(len == (size_t)-1) {
570     ((char*)buf)[len] = '\0';