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Ensure that we do not exceed the hold's maximum size with a single frame.

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(closes issue #12047)
Reported by: fabianoheringer
Tested by: fabianoheringer


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@112125 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Joshua Colp
2008-04-01 16:45:14 +00:00
parent 9ae694024e
commit 214973a574
2 changed files with 6 additions and 1 deletions
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4
include/asterisk/slinfactory.h
View File

@@ -31,10 +31,12 @@
extern "C" { extern "C" {
#endif #endif
#define AST_SLINFACTORY_MAX_HOLD 1280
struct ast_slinfactory { struct ast_slinfactory {
AST_LIST_HEAD_NOLOCK(, ast_frame) queue; AST_LIST_HEAD_NOLOCK(, ast_frame) queue;
struct ast_trans_pvt *trans; struct ast_trans_pvt *trans;
short hold[1280]; short hold[AST_SLINFACTORY_MAX_HOLD];
short *offset; short *offset;
size_t holdlen; /*!< in samples */ size_t holdlen; /*!< in samples */
unsigned int size; /*!< in samples */ unsigned int size; /*!< in samples */

3
main/slinfactory.c
View File

@@ -137,6 +137,9 @@ int ast_slinfactory_read(struct ast_slinfactory *sf, short *buf, size_t samples)
memcpy(offset, frame_data, ineed * sizeof(*offset)); memcpy(offset, frame_data, ineed * sizeof(*offset));
sofar += ineed; sofar += ineed;
frame_data += ineed; frame_data += ineed;
if (remain > (AST_SLINFACTORY_MAX_HOLD - sf->holdlen)) {
remain = AST_SLINFACTORY_MAX_HOLD - sf->holdlen;
}
memcpy(sf->hold, frame_data, remain * sizeof(*offset)); memcpy(sf->hold, frame_data, remain * sizeof(*offset));
sf->holdlen = remain; sf->holdlen = remain;
} }