Avoid possible overflow in OS_Unix readlink
Also fix [-Wunused-result]
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1 changed files with 4 additions and 2 deletions
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@ -487,9 +487,11 @@ String OS_Unix::get_executable_path() const {
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//fix for running from a symlink
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char buf[256];
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memset(buf, 0, 256);
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readlink("/proc/self/exe", buf, sizeof(buf));
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ssize_t len = readlink("/proc/self/exe", buf, sizeof(buf));
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String b;
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b.parse_utf8(buf);
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if (len > 0) {
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b.parse_utf8(buf, len);
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}
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if (b == "") {
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WARN_PRINT("Couldn't get executable path from /proc/self/exe, using argv[0]");
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return OS::get_executable_path();
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