int main (void){
char buffer[101] = "Add\n";
int file, i = 0;
char filename[1010];
for (i = 1; i < 1001; i++) {
sprintf(filename, "%d", i);
file = open(filename, O_RDWR | O_CREAT, S_IRWXU);
metawrite(file, &buffer, 100);
sync();
close(file);
remove(filename);
}
return 0;
}
int main(void) {
char buffer[100] = "test data\n";
char readbuffer[100];
int fp;
int i=0;
fp = open("testfile.txt", O_RDWR);
if (fd < 0) {
printf("Failed to open test file\n");
}
metawrite(fp, &buffer, 100);
metaread(fd, &readbuffer, 100);
while (readbuffer[i] != '/0') {
printf("%c", readbuffer[i]);
i++;
}
return 0;
}
int main (void)
{
char buffer[BUF_SIZE] = "NEW STUFF IN ORIGINAL\n";
char bufferCOPY[BUF_SIZE] = "\n";
int fd, fd2, i = 0;
fd = open("README.txt", O_RDWR | O_CREAT, S_IRWXU);
fd2 = open("copy.txt", O_RDWR | O_CREAT, S_IRWXU);
if (fd == -1) {
printf("DEBUG: File open failed.\n");
}
if (fd2 == -1) {
printf("DEBUG: File open failed.\n");
}
/*Write "NEW STUFF IN ORIGINAL" to metadata region of original README.txt*/
metawrite(fd, &buffer, BUF_SIZE-1);
/*Clear buffer*/
/* Same changes as in 4 & 5 */
memset(&buffer, 0, sizeof(char)*BUF_SIZE);
/*Read back data from metadata region of README.txt*/
metaread(fd,&buffer,BUF_SIZE-1);
printf("%s\n", buffer);
/*
while(buffer[i] != '\0') {
printf("%c", buffer[i]);
i++;
}
*/
/* same change */
memset(&bufferCOPY, 0, sizeof(char)*BUF_SIZE);
/*check metadata in copy.txt to make sure it's the same*/
metaread(fd2,&bufferCOPY,BUF_SIZE-1);
printf("%s\n", bufferCOPY);
/*while(bufferCOPY[i] != '\0') {
printf("%c", bufferCOPY[i]);
i++;
}*/
return 0;
}
int main(void) {
char buffer[100] = "metadata that should not be changed\n";
char reg[100] = "regular file contents\n";
char readreg[100];
int fp;
int i=0;
fp = open("testfile.txt", O_RDWR | O_CREAT, S_IRWXU);
if (fp == -1) {
printf("Failed to open file\n");
}
write(fp, ®, 100);
metawrite(fp, &buffer, 100);
read(fp, &readreg, 100);
while(readreg[i] != '\0') {
printf("%c", readbuffer[i]);
i++;
}
printf("\n -regular file contents- should have been printed\n");
return 0;
}
