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ext-info handling for server-sig-algs

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only client side is handled
This commit is contained in:
Matt Johnston
2020-05-19 00:31:41 +08:00
parent 972d723484
commit 5acee497bf
16 changed files with 255 additions and 90 deletions
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22
buffer.c
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@@ -228,19 +228,37 @@ char* buf_getstring(buffer* buf, unsigned int *retlen) {
}
/* Return a string as a newly allocated buffer */
buffer * buf_getstringbuf(buffer *buf) {
static buffer * buf_getstringbuf_int(buffer *buf, int incllen) {
buffer *ret = NULL;
unsigned int len = buf_getint(buf);
int extra = 0;
if (len > MAX_STRING_LEN) {
dropbear_exit("String too long");
}
ret = buf_new(len);
if (incllen) {
extra = 4;
}
ret = buf_new(len+extra);
if (incllen) {
buf_putint(ret, len);
}
memcpy(buf_getwriteptr(ret, len), buf_getptr(buf, len), len);
buf_incrpos(buf, len);
buf_incrlen(ret, len);
buf_setpos(ret, 0);
return ret;
}
/* Return a string as a newly allocated buffer */
buffer * buf_getstringbuf(buffer *buf) {
return buf_getstringbuf_int(buf, 0);
}
/* Returns a string in a new buffer, including the length */
buffer * buf_getbuf(buffer *buf) {
return buf_getstringbuf_int(buf, 1);
}
/* Just increment the buffer position the same as if we'd used buf_getstring,
* but don't bother copying/malloc()ing for it */
void buf_eatstring(buffer *buf) {