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