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#include <stdio.h>
//#include <string.h>
//#include <syscall-nr.h>
#include <syscall.h>
#include <stdarg.h>
int mystrlen(char *str);
void mysprintf(char *sbuf, char *str, ...);
int main(void)
{
char *descr = "This is test program v0.1 that tests your implementation of lab 2 in TDDB68/72\n";
char *test1 = "The first test is to create three files.\n";
char *test2 = "Now lets write some data to the files. Write some binary data to some files.\n";
char *test3 = "Test string that is written to a file.\n";
char *test4 = "Test to read back data from files.\n";
char *test5 = "Test to read from and write to arbitrary file handles.\n";
char *test6 = "Get data from console. Please, write something (10 characters).\n";
char *test7 = "Test to open a file that does not exist.\n";
//char binarydata[] = {1,2,3,4,5,0,1,2,3,4};
char binarydata[10];
char sbuf[50];
int file[3];
int readNum, i;
// verkar vara något fel med fördefinerade variablar.. tex char buf[10] = {0} ger oxå samma fel
binarydata[0] = 1;
binarydata[1] = 2;
binarydata[2] = 3;
binarydata[3] = 4;
binarydata[4] = 5;
binarydata[5] = 0;
binarydata[6] = 1;
binarydata[7] = 2;
binarydata[8] = 3;
binarydata[9] = 4;
write(STDOUT_FILENO, descr, mystrlen(descr));
write(STDOUT_FILENO, test1, mystrlen(test1));
if (!create("test0", mystrlen(test3))) {
mysprintf(sbuf, "Could not create test0\n");
write(STDOUT_FILENO, sbuf, mystrlen(sbuf));
halt();
}
if (!create("test1", 1024)){
mysprintf(sbuf, "Could not create test1\n");
write(STDOUT_FILENO, sbuf, mystrlen(sbuf));
halt();
}
if (!create("test2", 1024)){
mysprintf(sbuf, "Could not create test1\n");
write(STDOUT_FILENO, sbuf, mystrlen(sbuf));
halt();
}
for(i = 0; i < 2; i++){
mysprintf(sbuf, "test%d", i);
file[i] = open(sbuf);
if(file[i] > 1){
mysprintf(sbuf, "Could open test%d\n", i);
write(STDOUT_FILENO, sbuf, mystrlen(sbuf));
}
else{
mysprintf(sbuf, "Could not open test%d\n", i);
write(STDOUT_FILENO, sbuf, mystrlen(sbuf));
halt();
}
}
write(STDOUT_FILENO, test6, mystrlen(test6));
readNum = read(STDIN_FILENO, sbuf, 10);
if(readNum != 10){
mysprintf(sbuf, "Did not read 10 characters from the console.\n");
write(STDOUT_FILENO, sbuf, mystrlen(sbuf));
halt();
}
write(STDOUT_FILENO, test2, mystrlen(test2));
write(file[0], test3, mystrlen(test3));
write(file[1], binarydata, 10);
write(STDOUT_FILENO, test4, mystrlen(test4));
close(file[0]);
file[0] = open("test0");
readNum = read(file[0], sbuf, 40); // lite konstigt test..
if(readNum != mystrlen(test3)){ // test4?, bara tur att sbuf[39+] = 0
mysprintf(sbuf, "Could not read back from test0 (%d), %d characters read instead!\n", mystrlen(test3), readNum);
write(STDOUT_FILENO, sbuf, mystrlen(sbuf));
halt();
}
close(file[1]);
file[1] = open("test1");
readNum = read(file[1], sbuf, 10);
if(readNum != 10){
mysprintf(sbuf, "Could not read back binary data from test1\n");
write(STDOUT_FILENO, sbuf, mystrlen(sbuf));
halt();
}
write(STDOUT_FILENO, test5, mystrlen(test5));
write(87, "hej", 3);
readNum = read(1006, sbuf, 3);
if(readNum != -1){
mysprintf(sbuf, "Your should catch that I tried to read from file 1006\n");
write(STDOUT_FILENO, sbuf, mystrlen(sbuf));
}
else{
mysprintf(sbuf, "Good, you noted that I tried to read, wrongly, from the file 1006\n");
write(STDOUT_FILENO, sbuf, mystrlen(sbuf));
}
write(STDOUT_FILENO, test7, mystrlen(test7));
file[2] = open("fdsfa");
if(file[2] > 1){
mysprintf(sbuf, "We got a valid file handle!\n");
write(STDOUT_FILENO, sbuf, mystrlen(sbuf));
halt();
} else {
mysprintf(sbuf, "PASSED!\n");
write(STDOUT_FILENO, sbuf, mystrlen(sbuf));
}
halt();
}
int mystrlen(char *str)
{
int len = 0;
while(*str != '\0'){
len++;
str++;
}
return len;
}
void mysprintf(char *sbuf, char *str, ...)
{
int j;
char buffer[15];
int ival;
va_list ap;
va_start(ap, str);
for(; *str != '\0';){
if(*str == '%'){
str++;
switch(*str){
case 'd':
ival = va_arg(ap, int);
if(ival == 0){
*sbuf = '0';
sbuf++;
}
else{
for(j = 14; ival > 0; j--){
buffer[j] = ival % 10 + '0';
ival /= 10;
}
j++;
for(;j < 15;){
*sbuf = buffer[j];
sbuf++;
j++;
}
}
str++;
break;
case 's':
break;
default:
break;
}
}
else{
*sbuf = *str;
sbuf++;
str++;
}
}
*sbuf = '\0';
}
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