Usermode/Applications/CLIShell_src/lib.c

   1 /*\r
   2  * AcessOS Shell Version 2\r
   3  *\r
   4  * See file COPYING for \r
   5  */\r
   6 #include "header.h"\r
   7 \r
   8 // === CODE ===\r
   9 /**\r
  10  * \fn int GeneratePath(char *file, char *base, char *Dest)\r
  11  * \brief Generates a path given a base and a filename\r
  12  * \param \r
  13  */\r
  14 int GeneratePath(char *file, char *base, char *Dest)\r
  15 {\r
  16         char    *pathComps[64];\r
  17         char    *tmpStr;\r
  18         int             iPos = 0;\r
  19         int             iPos2 = 0;\r
  20         \r
  21         // Parse Base Path\r
  22         if(file[0] != '/')\r
  23         {\r
  24                 pathComps[iPos++] = tmpStr = base+1;\r
  25                 while(*tmpStr)\r
  26                 {\r
  27                         if(*tmpStr++ == '/')\r
  28                         {\r
  29                                 pathComps[iPos] = tmpStr;\r
  30                                 iPos ++;\r
  31                         }\r
  32                 }\r
  33         }\r
  34         \r
  35         //Print(" GeneratePath: Base Done\n");\r
  36         \r
  37         // Parse Argument Path\r
  38         pathComps[iPos++] = tmpStr = file;\r
  39         while(*tmpStr)\r
  40         {\r
  41                 if(*tmpStr++ == '/')\r
  42                 {\r
  43                         pathComps[iPos] = tmpStr;\r
  44                         iPos ++;\r
  45                 }\r
  46         }\r
  47         pathComps[iPos] = NULL;\r
  48         \r
  49         //Print(" GeneratePath: Path Done\n");\r
  50         \r
  51         // Cleanup\r
  52         iPos2 = iPos = 0;\r
  53         while(pathComps[iPos])\r
  54         {\r
  55                 tmpStr = pathComps[iPos];\r
  56                 // Always Increment iPos\r
  57                 iPos++;\r
  58                 // ..\r
  59                 if(tmpStr[0] == '.' && tmpStr[1] == '.' && (tmpStr[2] == '/' || tmpStr[2] == '\0') )\r
  60                 {\r
  61                         if(iPos2 != 0)\r
  62                                 iPos2 --;\r
  63                         continue;\r
  64                 }\r
  65                 // .\r
  66                 if(tmpStr[0] == '.' && (tmpStr[1] == '/' || tmpStr[1] == '\0') )\r
  67                 {\r
  68                         continue;\r
  69                 }\r
  70                 // Empty\r
  71                 if(tmpStr[0] == '/' || tmpStr[0] == '\0')\r
  72                 {\r
  73                         continue;\r
  74                 }\r
  75                 \r
  76                 // Set New Position\r
  77                 pathComps[iPos2] = tmpStr;\r
  78                 iPos2++;\r
  79         }\r
  80         pathComps[iPos2] = NULL;\r
  81         \r
  82         // Build New Path\r
  83         iPos2 = 1;      iPos = 0;\r
  84         Dest[0] = '/';\r
  85         while(pathComps[iPos])\r
  86         {\r
  87                 tmpStr = pathComps[iPos];\r
  88                 while(*tmpStr && *tmpStr != '/')\r
  89                 {\r
  90                         Dest[iPos2++] = *tmpStr;\r
  91                         tmpStr++;\r
  92                 }\r
  93                 Dest[iPos2++] = '/';\r
  94                 iPos++;\r
  95         }\r
  96         if(iPos2 > 1)\r
  97                 Dest[iPos2-1] = 0;\r
  98         else\r
  99                 Dest[iPos2] = 0;\r
 100         \r
 101         return iPos2;   //Length\r
 102 }\r