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i18n: filter LANG/LC_LANG for valid characters, and handle @
If there are more valid characters, add them in, I did not find an actual list.
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@ -38,6 +38,8 @@
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#undef MONERO_DEFAULT_LOG_CATEGORY
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#define MONERO_DEFAULT_LOG_CATEGORY "i18n"
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#define MAX_LANGUAGE_SIZE 16
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static const unsigned char qm_magic[16] = {0x3c, 0xb8, 0x64, 0x18, 0xca, 0xef, 0x9c, 0x95, 0xcd, 0x21, 0x1c, 0xbf, 0x60, 0xa1, 0xbd, 0xdd};
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static std::map<std::string,std::string> i18n_entries;
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@ -62,7 +64,19 @@ std::string i18n_get_language()
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std::string language = e;
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language = language.substr(0, language.find("."));
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language = language.substr(0, language.find("@"));
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// check valid values
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for (char c: language)
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if (!strchr("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_-.@", c))
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return "en";
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std::transform(language.begin(), language.end(), language.begin(), tolower);
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if (language.size() > MAX_LANGUAGE_SIZE)
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{
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i18n_log("Language from LANG/LC_ALL suspiciously long, defaulting to en");
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return "en";
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}
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return language;
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}
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