File filename-encoding.patch of Package p7zip

diff --git a/CPP/7zip/Archive/Zip/ZipItem.cpp b/CPP/7zip/Archive/Zip/ZipItem.cpp
index 12bc8ad..b4d96cd 100644
--- a/CPP/7zip/Archive/Zip/ZipItem.cpp
+++ b/CPP/7zip/Archive/Zip/ZipItem.cpp
@@ -1,5 +1,10 @@
 // Archive/ZipItem.cpp
 
+#ifndef _WIN32
+#include <iconv.h>
+#include <locale.h>
+#endif
+
 #include "StdAfx.h"
 
 #include "../../../../C/CpuArch.h"
@@ -243,7 +248,81 @@ void CItem::GetUnicodeString(UString &res, const AString &s, bool isComment, boo
     }
     #endif
   }
-  
+
+  #ifndef _WIN32
+  // Convert OEM char set to UTF-8 if needed
+  // Use system locale to select code page
+
+  const char *oem_cp = "CP437\0"; // CP name is 6 chars max
+
+  if (!isUtf8) {
+    const char *lc_to_cp_table[] = {
+    "af_ZA", "CP850", "ar_SA", "CP720", "ar_LB", "CP720", "ar_EG", "CP720",
+    "ar_DZ", "CP720", "ar_BH", "CP720", "ar_IQ", "CP720", "ar_JO", "CP720",
+    "ar_KW", "CP720", "ar_LY", "CP720", "ar_MA", "CP720", "ar_OM", "CP720",
+    "ar_QA", "CP720", "ar_SY", "CP720", "ar_TN", "CP720", "ar_AE", "CP720",
+    "ar_YE", "CP720","ast_ES", "CP850", "az_AZ", "CP866", "az_AZ", "CP857",
+    "be_BY", "CP866", "bg_BG", "CP866", "br_FR", "CP850", "ca_ES", "CP850",
+    "zh_CN", "CP936", "zh_TW", "CP950", "kw_GB", "CP850", "cs_CZ", "CP852",
+    "cy_GB", "CP850", "da_DK", "CP850", "de_AT", "CP850", "de_LI", "CP850",
+    "de_LU", "CP850", "de_CH", "CP850", "de_DE", "CP850", "el_GR", "CP737",
+    "en_AU", "CP850", "en_CA", "CP850", "en_GB", "CP850", "en_IE", "CP850",
+    "en_JM", "CP850", "en_BZ", "CP850", "en_PH", "CP437", "en_ZA", "CP437",
+    "en_TT", "CP850", "en_US", "CP437", "en_ZW", "CP437", "en_NZ", "CP850",
+    "es_PA", "CP850", "es_BO", "CP850", "es_CR", "CP850", "es_DO", "CP850",
+    "es_SV", "CP850", "es_EC", "CP850", "es_GT", "CP850", "es_HN", "CP850",
+    "es_NI", "CP850", "es_CL", "CP850", "es_MX", "CP850", "es_ES", "CP850",
+    "es_CO", "CP850", "es_ES", "CP850", "es_PE", "CP850", "es_AR", "CP850",
+    "es_PR", "CP850", "es_VE", "CP850", "es_UY", "CP850", "es_PY", "CP850",
+    "et_EE", "CP775", "eu_ES", "CP850", "fa_IR", "CP720", "fi_FI", "CP850",
+    "fo_FO", "CP850", "fr_FR", "CP850", "fr_BE", "CP850", "fr_CA", "CP850",
+    "fr_LU", "CP850", "fr_MC", "CP850", "fr_CH", "CP850", "ga_IE", "CP437",
+    "gd_GB", "CP850", "gv_IM", "CP850", "gl_ES", "CP850", "he_IL", "CP862",
+    "hr_HR", "CP852", "hu_HU", "CP852", "id_ID", "CP850", "is_IS", "CP850",
+    "it_IT", "CP850", "it_CH", "CP850", "iv_IV", "CP437", "ja_JP", "CP932",
+    "kk_KZ", "CP866", "ko_KR", "CP949", "ky_KG", "CP866", "lt_LT", "CP775",
+    "lv_LV", "CP775", "mk_MK", "CP866", "mn_MN", "CP866", "ms_BN", "CP850",
+    "ms_MY", "CP850", "nl_BE", "CP850", "nl_NL", "CP850", "nl_SR", "CP850",
+    "nn_NO", "CP850", "nb_NO", "CP850", "pl_PL", "CP852", "pt_BR", "CP850",
+    "pt_PT", "CP850", "rm_CH", "CP850", "ro_RO", "CP852", "ru_RU", "CP866",
+    "sk_SK", "CP852", "sl_SI", "CP852", "sq_AL", "CP852", "sr_RS", "CP855",
+    "sr_RS", "CP852", "sv_SE", "CP850", "sv_FI", "CP850", "sw_KE", "CP437",
+    "th_TH", "CP874", "tr_TR", "CP857", "tt_RU", "CP866", "uk_UA", "CP866",
+    "ur_PK", "CP720", "uz_UZ", "CP866", "uz_UZ", "CP857", "vi_VN", "CP1258",
+    "wa_BE", "CP850", "zh_HK", "CP950", "zh_SG", "CP936"};
+    int table_len = sizeof(lc_to_cp_table) / sizeof(char *);
+    int lc_len, i;
+
+    char *lc = setlocale(LC_CTYPE, "");
+
+    if (lc && lc[0]) {
+        // Compare up to the dot, if it exists, e.g. en_US.UTF-8
+        for (lc_len = 0; lc[lc_len] != '.' && lc[lc_len] != '\0'; ++lc_len)
+            ;
+        for (i = 0; i < table_len; i += 2)
+            if (strncmp(lc, lc_to_cp_table[i], lc_len) == 0)
+                oem_cp = lc_to_cp_table[i + 1];
+    }
+
+    iconv_t cd;
+    if ((cd = iconv_open("UTF-8", oem_cp)) != (iconv_t)-1) {
+
+      AString s_utf8;
+      const char* src = s.Ptr();
+      size_t slen = s.Len();
+      size_t dlen = slen * 4;
+      const char* dest = s_utf8.GetBuf_SetEnd(dlen + 1); // (source length * 4) + null termination
+
+      size_t done = iconv(cd, (char**)&src, &slen, (char**)&dest, &dlen);
+      bzero((size_t*)dest + done, 1);
+
+      iconv_close(cd);
+
+      if (ConvertUTF8ToUnicode(s_utf8, res) || ignore_Utf8_Errors)
+        return;
+    }    
+  }
+  #endif
   
   if (isUtf8)
     if (ConvertUTF8ToUnicode(s, res) || ignore_Utf8_Errors)