в следующем коде при запуске приведет к ошибке сегментации из-за передачи FILE * в fclose, который не содержит адреса (NULL)
Мне интересно, почему это происходит, ФАЙЛ * не используется, что так закончилось.
ФАЙЛ * называется urandom и передается в fclose в основной функции.
Спасибо
#include <stdio.h>
#include <stdlib.h>
struct property
{
char *name;
unsigned int value;
unsigned int owner;
unsigned int type;
};
struct player
{
unsigned int id;
unsigned int money;
unsigned int position;
};
int rollDice(FILE *);
int amountOfLines(FILE *);
int createArrayOfPtrs(int ,void ***);
int makeArryOfPropertyPtrs(int ,struct property **);
int FillArryPropertyData(struct property **,int ,FILE *);
int splitBuffer(char *,unsigned int *,char **);
int bufferPropertyFile(FILE *,char **,int );
i nt fillPropertyStruct(struct property *,unsigned int ,char *);
int main(void)
{
int linesInPropertyFile = 0;
struct property **arrayForProperties = 0;
//Open /dev/urandom for rollDice
FILE *urandom = fopen("/dev/urandom","rb");
FILE *propertyFile = fopen("/home/jordan/Documents/Programming/Monopoly Project/properties","rb");
if(propertyFile == NULL || urandom == NULL)
{
puts("ERROR: error in opening file(s)");
return 1;
}
linesInPropertyFile = amountOfLines(propertyFile);
//DEBUG
printf("%d is contained within \"linesInPropertyFile\"\n",linesInPropertyFile);
if(createArrayOfPtrs(linesInPropertyFile,(void ***)&arrayForProperties))
{
puts("ERROR: error from createArrayOfPointers()");
return 1;
}
//DEBUG
printf("Outside Pointer: %p\n",arrayForProperties);
if(makeArryOfPropertyPtrs(linesInPropertyFile,arrayForProperties))
{
puts("ERROR: error from createArrayOfPointersForProperties()");
return 1;
}
if(FillArryPropertyData(arrayForProperties,linesInPropertyFile,propertyFile))
{
puts("ERROR: error from FillArryPropertyData()");
}
//Close FILE stream for /dev/urandom
fclose(urandom);
fclose(propertyFile);
return 0;
}
int FillArryPropertyData(struct property **array,int amntOfProperties,FILE *fp)
{
int bufferUsed = 100;
int i = 0;
int returnValue = 0;
int returnValue2 = 0;
unsigned int money = 0;
char *name;
char *buffer;
rewind(fp);
while(returnValue == 0)
{
buffer = malloc(bufferUsed);
returnValue = bufferPropertyFile(fp,&buffer,bufferUsed);
if(returnValue && returnValue != -1)
{
puts("ERROR: error from bufferPropertyFile()");
return -1;
}
if(returnValue == -1)
{
break;
}
if(buffer[0] != '\0')
{
returnValue2 = splitBuffer(buffer,&money,&name);
}
if(returnValue2)
{
puts("ERROR: error in splitBuffer()");
return 1;
}
if(fillPropertyStruct(array[i],money,name))
{
puts("ERROR: error in fillPropertyStruct()");
return 1;
}
money = 0;
i++;
}
free(buffer);
return 0;
}
int fillPropertyStruct(struct property *array,unsigned int money,char *name)
{
int nameSize = 100;
int i = 0;
array->name = malloc(nameSize);
array->value = money;
while(1)
{
if(i >= nameSize)
{
void *tmp = realloc(array->name,nameSize * 2);
nameSize *= 2;
if(tmp)
{
array->name = tmp;
}
else
{
return -1;
}
}
if(name[i] == '\0')
{
break;
}
array->name[i] = name[i];
i++;
}
array->name[i] = '\0';
return 0;
}
int splitBuffer(char *buffer,unsigned int *money,char **name)
{
int i = 0;
int j = 1;
int nameSize = 100;
*name = malloc(nameSize);
while(1)
{
if(buffer[j] != '"')
{
(*name)[j-1] = buffer[j];
}
else
{
i++;
}
j++;
if(i)
{
break;
}
if(j >= nameSize)
{
void *tmp = 0;
tmp = realloc(*name,nameSize * 2);
nameSize = nameSize * 2;
if(tmp != NULL)
{
*name = tmp;
}
else
{
puts("ERROR: error in splitBuffer");
return -1;
}
}
}
name[j-1] = '\0';
while(buffer[j] != '$')
{
if(buffer[j] == '\0')
{
puts("ERROR: error in splitBuffer()");
return -2;
}
j++;
}
j++;
while(buffer[j] != '\0')
{
*money += (buffer[j] - '0');
if(buffer[j+1] != '\0')
{
*money *= 10;
}
j++;
}
printf("BUFFER: %s\n",buffer);
printf("NAME: %s\n",*name);
printf("MONEY: %d\n",*money);
return 0;
}
int bufferPropertyFile(FILE *fp,char **buffer,int i)
{
int j = (i - i);
if(feof(fp))
{
//-1 Returned if EOF detected
return -1;
}
char retr = 0;
while(1)
{
if(j + 1 >= i)
{
void *tmp = realloc(*buffer,i * 2);
if(tmp != NULL)
{
*buffer = tmp;
i = i * 2;
}
else
{
puts("ERROR: error in bufferPropertyFile()");
return -2;
}
}
retr = fgetc(fp);
if(retr == '\n' || feof(fp))
{
break;
}
(*buffer)[j] = retr;
j++;
}
(*buffer)[j] = '\0';
if(**buffer == '\0')
{
return -1;
}
return 0;
}
int rollDice(FILE *fp)
{
int seed = fgetc(fp);
srand(seed);
return (rand() % 6) + 1;
}
int amountOfLines(FILE *file)
{
int i = 0;
int retr = 0;
while(1)
{
retr = fgetc(file);
if(retr == EOF)
{
break;
}
if(retr == '\n' )
{
i++;
}
}
return i;
}
int createArrayOfPtrs(int numberOfPointers,void ***pointer)
{
void *tmp = malloc(numberOfPointers * sizeof (tmp));
if(tmp != NULL)
{
*pointer = tmp;
//DEBUG
printf("Pointer: %p\n",*pointer);
}
else
{
return 1;
}
return 0;
}
int makeArryOfPropertyPtrs(int numberOfPointers,struct property **pointer)
{
int i = 0;
void *tmp;
for(i = 0;i < numberOfPointers;i++)
{
tmp = malloc(sizeof(struct property));
if(tmp == NULL)
{
return 1;
}
pointer[i] = (struct property *)tmp;
}
return 0;
}