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fix buffer overflows

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Signed-off-by: Benjamin Otte <in7y118@public.uni-hamburg.de>
This commit is contained in:
Benjamin Otte 2004-07-20 15:33:52 +00:00 • committed by Clemens Ladisch
parent 6627bd5273
commit f3fff3e0ef
1 changed files with 5 additions and 2 deletions
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7
src/output.c
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@ -255,7 +255,9 @@ static int snd_output_buffer_need(snd_output_t *output, size_t size)
if (buffer->alloc == 0) if (buffer->alloc == 0)
alloc = 256; alloc = 256;
else else
alloc = buffer->alloc * 2; alloc = buffer->alloc;
while (alloc < size)
alloc *= 2;
buffer->buf = realloc(buffer->buf, alloc); buffer->buf = realloc(buffer->buf, alloc);
if (!buffer->buf) if (!buffer->buf)
return -ENOMEM; return -ENOMEM;
@ -281,8 +283,9 @@ static int snd_output_buffer_print(snd_output_t *output, const char *format, va_
result = snd_output_buffer_need(output, size); result = snd_output_buffer_need(output, size);
if (result < 0) if (result < 0)
return result; return result;
result = vsprintf(buffer->buf + buffer->size, format, args); result = vsnprintf(buffer->buf + buffer->size, result, format, args);
assert(result == (int)size); assert(result == (int)size);
buffer->size += result;
return result; return result;
} }