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fix string truncation regression 

buf_append was dropping the final byte
This commit is contained in:
John Cupitt 2018-11-25 11:19:36 +00:00
parent 01a5bfa27e
commit 2b70333d7e
1 changed files with 4 additions and 3 deletions
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7
libvips/iofuncs/buf.c
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@ -275,11 +275,12 @@ vips_buf_appendns( VipsBuf *buf, const char *str, int sz )
*/ */
avail = buf->mx - buf->i - 4; avail = buf->mx - buf->i - 4;
/* Amount we actually copy.
*/
cpy = VIPS_MIN( n, avail ); cpy = VIPS_MIN( n, avail );
vips_strncpy( buf->base + buf->i, str, cpy ); /* Can't use vips_strncpy() here, we don't want to drop the end of the
* string.
*/
strncpy( buf->base + buf->i, str, cpy );
buf->i += cpy; buf->i += cpy;
if( buf->i >= buf->mx - 4 ) { if( buf->i >= buf->mx - 4 ) {