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MENT-1263 : ma_format_win32_error could cause invalid parameter exception

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If the formatted message was too long, for the buffer, sprintf_s used
in this function raises invalid parameter.

replace sprintf_s with snprintf to fix.
This commit is contained in:
Vladislav Vaintroub
2021-07-19 13:33:51 +02:00
parent 07a15f23a2
commit e9f02c9ea6
1 changed files with 3 additions and 2 deletions
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5
libmariadb/win32_errmsg.c
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@@ -117,7 +117,7 @@ void ma_format_win32_error(char* buf, size_t buflen, DWORD code, _Printf_format_
return; return;
if (entry) if (entry)
{ {
sprintf_s(cur, end - cur, "%s. Error 0x%08lX(%s)", entry->msg, code, entry->sym); snprintf(cur, end - cur, "%s. Error 0x%08lX(%s)", entry->msg, code, entry->sym);
} }
else else
{ {
@@ -131,7 +131,8 @@ void ma_format_win32_error(char* buf, size_t buflen, DWORD code, _Printf_format_
cur++; cur++;
*cur = 0; *cur = 0;
} }
sprintf_s(cur, end - cur, ". Error %lu/0x%08lX", code, code); snprintf(cur, end - cur, ". Error %lu/0x%08lX", code, code);
} }
end[-1] = 0;
} }