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Fix segfault in ExportWaveAsCode (#3769) 

`char *txtData = (char *)RL_CALLOC(waveDataSize * 6 + 2000, sizeof(char));`

assumes every chunk being added to txtData is 6 bytes. This is not always true, sometimes a newline is involved and the data becomes 12 bytes instead, and this can cause a random segfault.

This commit changes `6` to `12`, and explains why in the comment.
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IoIxD 2024-02-01 13:16:57 -07:00 committed by GitHub
parent c0b081fac0
commit 7ec43022c1
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1 changed files with 3 additions and 2 deletions
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src/raudio.c
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@ -1081,8 +1081,9 @@ bool ExportWaveAsCode(Wave wave, const char *fileName)
int waveDataSize = wave.frameCount*wave.channels*wave.sampleSize/8;
// NOTE: Text data buffer size is estimated considering wave data size in bytes
// and requiring 6 char bytes for every byte: "0x00, "
char *txtData = (char *)RL_CALLOC(waveDataSize*6 + 2000, sizeof(char));
// and requiring 12 char bytes for every byte; the actual size varies, but
// the longest possible char being appended is "%.4ff,\n ", which is 12 bytes.
char *txtData = (char *)RL_CALLOC(waveDataSize*12 + 2000, sizeof(char));
int byteCount = 0;
byteCount += sprintf(txtData + byteCount, "\n//////////////////////////////////////////////////////////////////////////////////\n");