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This commit is contained in:
Pavol Rusnak 2011-04-22 04:47:04 +02:00
parent dd772c2ea3
commit 0ed434d9d2
4 changed files with 16 additions and 12 deletions
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18
dataio.c
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@ -6,19 +6,24 @@ int modify_credit(name, price)
const char* name;
int price;
{
char filename[13];
char filename[20];
int i;
int credit;
FILE* person_data;
strncpy(filename, name, 8);
i = strlen(name);
if (i > 8) i = 8;
strcpy(filename, "DATA\\");
i = 5;
strncpy(&filename[i], name, 8);
if (strlen(name) > 8) {
i += 8;
} else {
i += strlen(name);
}
strcpy(&filename[i], ".txt");
person_data = fopen(filename, "r");
if (person_data == NULL) {
printf("Warning: Filename %s does not exist!\n", filename);
// printf("Warning: Filename %s does not exist!\n", filename);
credit = 0;
} else {
fscanf(person_data, "%i", &credit);
@ -30,7 +35,7 @@ int modify_credit(name, price)
credit += price;
person_data = fopen(filename, "w");
if (person_data == NULL) {
printf("ERROR: Filename %s could not be created or overwritten!\nCheck system integrity!\n", filename);
// printf("ERROR: Filename %s could not be created or overwritten!\nCheck system integrity!\n", filename);
} else {
fprintf(person_data, "%i", credit);
fclose(person_data);
@ -39,4 +44,3 @@ int modify_credit(name, price)
return credit;
}