Fix the egrep warning. (#2083)

[Ventoy.git] / Plugson / src / Core / ventoy_util.c

diff --git a/Plugson/src/Core/ventoy_util.c b/Plugson/src/Core/ventoy_util.c
index d6ce0106a7dfb8d3550b00a0bf3ed6eb01ebebe7..50198e4db444b03829b69a1e83b24970bc36ca60 100644 (file)
--- a/Plugson/src/Core/ventoy_util.c
+++ b/Plugson/src/Core/ventoy_util.c
@@ -22,7 +22,6 @@
 #include <ventoy_define.h>
 #include <ventoy_util.h>
 
-
 static int g_tar_filenum = 0;
 static char *g_tar_buffer = NULL;
 static ventoy_file *g_tar_filelist = NULL;
@@ -80,44 +79,6 @@ uint64_t ventoy_get_human_readable_gb(uint64_t SizeBytes)
     return (uint64_t)GB;
 }
 
-int ventoy_read_file_to_buf(const char *FileName, int ExtLen, void **Bufer, int *BufLen)
-{
-    int FileSize;
-    FILE *fp = NULL;
-    void *Data = NULL;
-
-#if defined(_MSC_VER) || defined(WIN32)
-    fopen_s(&fp, FileName, "rb");
-#else
-    fp = fopen(FileName, "rb");
-#endif
-    if (fp == NULL)
-    {
-        vlog("Failed to open file %s", FileName);
-        return 1;
-    }
-
-    fseek(fp, 0, SEEK_END);
-    FileSize = (int)ftell(fp);
-
-    Data = malloc(FileSize + ExtLen);
-    if (!Data)
-    {
-        fclose(fp);
-        return 1;
-    }
-
-    fseek(fp, 0, SEEK_SET);
-    fread(Data, 1, FileSize, fp);
-
-    fclose(fp);
-
-    *Bufer = Data;
-    *BufLen = FileSize;
-
-    return 0;
-}
-
 ventoy_file * ventoy_tar_find_file(const char *path)
 {
     int i;
@@ -211,6 +172,7 @@ int ventoy_www_init(void)
 
     if (ventoy_decompress_tar(g_tar_buffer, TAR_BUF_MAX, &tarsize))
     {
+        vlog("Failed to decompress tar\n");
         return 1;
     }
 
@@ -294,4 +256,48 @@ if (backup)
 #endif    
 }
 
+static const char g_encoding_table[] = {'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H',
+                                'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P',
+                                'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X',
+                                'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f',
+                                'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n',
+                                'o', 'p', 'q', 'r', 's', 't', 'u', 'v',
+                                'w', 'x', 'y', 'z', '0', '1', '2', '3',
+                                '4', '5', '6', '7', '8', '9', '+', '/'};
+
+char * ventoy_base64_encode(const char *data, int input_length, int *output_length) 
+{
+    int i = 0;
+    int j = 0;
+    char *encoded_data = NULL;
+    int mod_table[] = {0, 2, 1};
+    
+    *output_length = 4 * ((input_length + 2) / 3);
+    encoded_data = malloc(*output_length + 4);
+    if (!encoded_data)
+    {
+        return NULL;
+    }
+
+    while (i < input_length) 
+    {
+        unsigned int octet_a = i < input_length ? (unsigned char)data[i++] : 0;
+        unsigned int octet_b = i < input_length ? (unsigned char)data[i++] : 0;
+        unsigned int octet_c = i < input_length ? (unsigned char)data[i++] : 0;
+
+        unsigned int triple = (octet_a << 0x10) + (octet_b << 0x08) + octet_c;
+
+        encoded_data[j++] = g_encoding_table[(triple >> 3 * 6) & 0x3F];
+        encoded_data[j++] = g_encoding_table[(triple >> 2 * 6) & 0x3F];
+        encoded_data[j++] = g_encoding_table[(triple >> 1 * 6) & 0x3F];
+        encoded_data[j++] = g_encoding_table[(triple >> 0 * 6) & 0x3F];
+    }
+
+    for (i = 0; i < mod_table[input_length % 3]; i++)
+    {
+        encoded_data[*output_length - 1 - i] = '=';        
+    }
+
+    return encoded_data;
+}