workbench/utilities/Installer/variables.c

   1 /*
   2     Copyright © 1995-2003, The AROS Development Team. All rights reserved.
   3     $Id$
   4 */
   5
   6 /* variables.c -- Here are all functions related to variables */
   7
   8 #include "Installer.h"
   9 #include "texts.h"
  10 #include "main.h"
  11 #include "gui.h"
  12 #include "cleanup.h"
  13 #include "variables.h"
  14
  15 /* External variables */
  16 extern InstallerPrefs preferences;
  17 extern IPTR args[TOTAL_ARGS];
  18 extern UBYTE **tooltypes;
  19
  20
  21 int numvariables = 0;
  22 struct VariableList *variables = NULL;
  23
  24
  25 /*
  26  * Get entry of variable in global list
  27  */
  28 struct VariableList *find_var(char *name)
  29 {
  30 int i;
  31
  32     /* Check if variable is in list */
  33     for ( i = 0 ; i < numvariables && strcmp(name, variables[i].varsymbol) != 0 ; i++ );
  34     if (i == numvariables)
  35     {
  36         return NULL;
  37     }
  38     else
  39     {
  40         return &(variables[i]);
  41     }
  42 }
  43
  44
  45 /*
  46  * Return the value of a variable
  47  * string if non-NULL else integer
  48  */
  49 void *get_variable(char *name)
  50 {
  51 struct VariableList *entry;
  52
  53     /* Find variable in lists */
  54     entry = find_var(name);
  55
  56     /* Return Pointer to value */
  57     if (entry != NULL)
  58     {
  59         if (entry->vartext == NULL)
  60         {
  61             return (void *)(entry->varinteger);
  62         }
  63         else
  64         {
  65             return (void *)entry->vartext;
  66         }
  67     }
  68     else
  69     {
  70         return NULL;
  71     }
  72 }
  73
  74
  75 /*
  76  * Get the string value of a variable
  77  */
  78 char *get_var_arg(char *name)
  79 {
  80 struct VariableList *entry;
  81
  82     /* Find variable in lists */
  83     entry = find_var(name);
  84
  85     if (entry != NULL)
  86     {
  87         return entry->vartext;
  88     }
  89     else
  90     {
  91         return NULL;
  92     }
  93 }
  94
  95
  96 /*
  97  * Get the integer value of a variable
  98  */
  99 long int get_var_int(char *name)
 100 {
 101 struct VariableList *entry;
 102
 103     /* Find variable in lists */
 104     entry = find_var(name);
 105
 106     if (entry != NULL)
 107     {
 108         return entry->varinteger;
 109     }
 110     else
 111     {
 112         return 0;
 113     }
 114 }
 115
 116
 117 /*
 118  * Set the value of a variable
 119  * Add variable to global list if not existent
 120  */
 121 void set_variable(char *name, char *text, long int intval)
 122 {
 123 int i;
 124
 125     /* Check if variable is in list */
 126     for ( i = 0 ; i < numvariables && strcmp(name, variables[i].varsymbol) != 0 ; i++ );
 127     if (i == numvariables)
 128     {
 129         /* Enlarge list for one additional element */
 130         numvariables++;
 131         variables = ReAllocVec(variables, sizeof(struct VariableList) * numvariables, MEMF_PUBLIC);
 132         outofmem(variables);
 133         variables[i].varsymbol = NULL;
 134         variables[i].vartext = NULL;
 135     }
 136     else
 137     {
 138         /* Free space for strings to be replaced in dynamic list */
 139         FreeVec(variables[i].vartext);
 140         variables[i].vartext = NULL;
 141     }
 142
 143     /* Change values in list */
 144
 145     /* Duplicate variable name if it does not exist yet */
 146
 147     if (variables[i].varsymbol == NULL)
 148     {
 149         variables[i].varsymbol = StrDup(name);
 150         outofmem(variables[i].varsymbol);
 151     }
 152
 153     /* Duplicate variable text if existent */
 154     if (text != NULL)
 155     {
 156         variables[i].vartext = StrDup(text);
 157         outofmem(variables[i].vartext);
 158     }
 159
 160     /* Set integer value */
 161     variables[i].varinteger = intval;
 162
 163 }
 164
 165
 166 /*
 167  * Set initial variables at INIT stage
 168  */
 169 void set_preset_variables(int argc)
 170 {
 171 char *ttemp;
 172
 173     if (argc)
 174     { /* Started from Shell */
 175         if (args[ARG_APPNAME])
 176         {
 177             set_variable("@app-name", (STRPTR)args[ARG_APPNAME], 0);
 178         }
 179         else
 180         {
 181             set_variable("@app-name", "DemoApp", 0);
 182         }
 183
 184         if (args[ARG_LANGUAGE])
 185         {
 186             set_variable("@language", (char *)args[ARG_LANGUAGE], 0);
 187         }
 188         else
 189         {
 190             set_variable("@language", "english", 0);
 191         }
 192     }
 193     else
 194     { /* Started from Workbench */
 195         ttemp = ArgString(tooltypes, "APPNAME", NULL);
 196         if (ttemp)
 197         {
 198             set_variable("@app-name", ttemp, 0);
 199         }
 200         else
 201         {
 202             set_variable("@app-name", "DemoApp", 0);
 203         }
 204         set_variable("@language", ArgString(tooltypes, "LANGUAGE", "english"), 0);
 205     }
 206
 207     set_variable("@abort-button", ABORT_BUTTON, 0);
 208     set_variable("@default-dest", DEFAULT_DEST, 0);
 209     set_variable("@installer-version", NULL, (INSTALLER_VERSION << 16) + INSTALLER_REVISION);
 210     set_variable("@user-level", NULL, preferences.defusrlevel);
 211     set_variable("@pretend",    NULL, preferences.pretend);
 212
 213     /* Set help texts */
 214     set_variable("@askchoice-help",  ASKCHOICE_HELP,  0);
 215     set_variable("@asknumber-help",  ASKNUMBER_HELP,  0);
 216     set_variable("@askoptions-help", ASKOPTIONS_HELP, 0);
 217     set_variable("@askstring-help",  ASKSTRING_HELP,  0);
 218
 219     /* Set other variables to (NULL|0) */
 220     set_variable("@askdir-help",    NULL, 0);
 221     set_variable("@askdisk-help",   NULL, 0);
 222     set_variable("@askfile-help",   NULL, 0);
 223     set_variable("@copyfiles-help", NULL, 0);
 224     set_variable("@copylib-help",   NULL, 0);
 225     set_variable("@each-name",      NULL, 0);
 226     set_variable("@each-type",      NULL, 0);
 227     set_variable("@error-msg",      NULL, 0);
 228     set_variable("@execute-dir",    NULL, 0);
 229     set_variable("@icon",           NULL, 0);
 230     set_variable("@ioerr",          NULL, 0);
 231     set_variable("@makedir-help",   NULL, 0);
 232     set_variable("@special-msg",    NULL, 0);
 233     set_variable("@startup-help",   NULL, 0);
 234 }
 235
 236
 237 #ifdef DEBUG
 238 /*
 239  * Dump values of all variables
 240  */
 241 void dump_varlist()
 242 {
 243 int i;
 244
 245     printf("DUMP of all %d variables:\n", numvariables);
 246     for ( i = 0 ; i < numvariables ; i++ )
 247     {
 248         printf("%s = %s | %ld\n", variables[i].varsymbol, variables[i].vartext, variables[i].varinteger);
 249     }
 250
 251 }
 252 #endif /* DEBUG */
 253
 254
 255 /*
 256  * Free the memory allocated by global varlist
 257  */
 258 void free_varlist()
 259 {
 260 int i;
 261
 262     for ( i = 0 ; i < numvariables ; i++ )
 263     {
 264         FreeVec(variables[i].varsymbol);
 265         FreeVec(variables[i].vartext);
 266     }
 267     FreeVec(variables);
 268 }
 269