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common initializer: fix out of buffer access by the version info string.

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String must be finished at termination charactor,
previous logic missed that handling, now fixed.

@Issue: https://github.com/Samsung/thorvg/issues/690
This commit is contained in:
Hermet Park 2021-08-09 13:20:27 +09:00 • committed by Hermet Park
parent b0c23451f9
commit 191442c7ae
1 changed files with 3 additions and 0 deletions
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3
src/lib/tvgInitializer.cpp
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@ -50,18 +50,21 @@ static bool _buildVersionInfo()
x = strchr(p, '.');
if (!x) return false;
strncpy(major, p, x - p);
major[x - p] = '\0';
p = x + 1;
char minor[3];
x = strchr(p, '.');
if (!x) return false;
strncpy(minor, p, x - p);
minor[x - p] = '\0';
p = x + 1;
char micro[3];
x = SRC + strlen(THORVG_VERSION_STRING);
if (!x) return false;
strncpy(micro, p, x - p);
micro[x - p] = '\0';
char sum[7];
snprintf(sum, sizeof(sum), "%s%s%s", major, minor, micro);