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Fix possible crash if giving invalid format string

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#252
This commit is contained in:
Linus Dierheimer
2022-09-23 10:43:11 +02:00
parent 8f30d0cdd8
commit 877ed94187
2 changed files with 5 additions and 3 deletions
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src/common/format.c
+4 -2
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@@ -55,10 +55,12 @@ static inline void appendInvalidPlaceholder(FFstrbuf* buffer, const char* start,
static inline void appendEmptyPlaceholder(FFstrbuf* buffer, const char* placeholder, uint32_t* argCounter, uint32_t numArgs, const FFformatarg* arguments)
{
if(*argCounter > numArgs)
if(*argCounter >= numArgs)
ffStrbufAppendS(buffer, placeholder);
else
ffFormatAppendFormatArg(buffer, &arguments[(*argCounter)++]);
ffFormatAppendFormatArg(buffer, arguments + *argCounter);
(*argCounter)++;
}
static inline bool formatArgSet(const FFformatarg* arg)