static int dir(int argc, char **argv) {
int i = 0, r;
char buf[BUF_SIZ];
if (argc > 2) {
printf("usage: %s [file]\n", argv[0]);
return 1;
}
if (argc == 2) {
r = sos_stat(argv[1], &sbuf);
if (r < 0) {
printf("stat(%s) failed: %d\n", argv[1], r);
return 0;
}
prstat(argv[1]);
return 0;
}
while (1) {
r = sos_getdirent(i, buf, BUF_SIZ);
if (r < 0) {
printf("dirent(%d) failed: %d\n", i, r);
break;
} else if (!r) {
break;
}
printf("dirent(%d): \"%s\"\n", i, buf);
r = sos_stat(buf, &sbuf);
if (r < 0) {
printf("stat(%s) failed: %d\n", buf, r);
break;
}
prstat(buf);
i++;
}
return 0;
}
void file_errors() {
char path[2 * MAX_PATH_LENGTH];
for (int i = 0; i < 2 * MAX_PATH_LENGTH; i++) {
path[i] = 'a';
}
path[2 * MAX_PATH_LENGTH - 1] = '\0';
int fd = sos_sys_open(path, O_RDONLY);
assert(fd == -1);
path[MAX_PATH_LENGTH] = '\0';
fd = sos_sys_open(path, O_RDONLY);
assert(fd == -1);
path[0] = '\0';
fd = sos_sys_open(path, O_RDONLY);
assert(fd == -1);
fd = sos_sys_open(NULL, O_RDONLY);
assert(fd == -1);
fd = sos_sys_open((char *)1000, O_RDONLY);
assert(fd == -1);
fd = sos_sys_open((char *)~0, O_RDWR);
assert(fd == -1);
fd = sos_sys_open("a_new_file.txt", O_RDWR);
assert(fd != -1);
assert(sos_sys_close(fd) == 0);
fd = sos_sys_open("a_new_file.txt", FM_READ | FM_WRITE);
assert(fd == -1);
fd = sos_sys_open("a_new_file_2.txt", 890244);
assert(fd == -1);
assert(sos_sys_close(-1) == -1);
assert(sos_sys_close(-243243244) == -1);
assert(sos_sys_close(1000) == -1);
assert(sos_sys_close(543543545) == -1);
char buff[3 * PAGE_SIZE];
assert(sos_sys_write(-1, buff, 1) == -1);
assert(sos_sys_write(-34234324, buff, 1000) == -1);
assert(sos_sys_write(1000, buff, 3 * PAGE_SIZE) == -1);
assert(sos_sys_write(454355455, buff, 234) == -1);
assert(sos_sys_write(~0, buff, 234) == -1);
assert(sos_sys_read(-1, buff, 1) == -1);
assert(sos_sys_read(-34234324, buff, 1000) == -1);
assert(sos_sys_read(1000, buff, 3 * PAGE_SIZE) == -1);
assert(sos_sys_read(454355455, buff, 234) == -1);
assert(sos_sys_read(~0, buff, 234) == -1);
fd = sos_sys_open("a_new_file.txt", O_WRONLY);
assert(fd != -1);
/* Not really an error but rather a corner-case. */
assert(sos_sys_write(fd, NULL, 0) == 0);
assert(sos_sys_write(fd, NULL, 3242) == -1);
assert(sos_sys_write(fd, (char *)1000, 1) == -1);
assert(sos_sys_write(fd, (char *)~0, 1000) == -1);
assert(sos_sys_write(fd, buff, ~0) == -1);
assert(sos_sys_read(fd, buff, 1) == -1);
/* Not really an error but rather a corner case. */
assert(sos_sys_write(fd, buff, 0) == 0);
assert(sos_sys_write(fd, buff, 1) == 1);
assert(sos_sys_close(fd) == 0);
assert(sos_sys_write(fd, buff, 1) == -1);
fd = sos_sys_open("a_new_file.txt", O_RDONLY);
assert(fd != -1);
assert(sos_sys_read(fd, NULL, 0) == 0);
assert(sos_sys_read(fd, NULL, 3242) == -1);
assert(sos_sys_read(fd, (char *)1000, 1) == -1);
assert(sos_sys_read(fd, (char *)~0, 1000) == -1);
assert(sos_sys_read(fd, buff, ~0) == -1);
assert(sos_sys_write(fd, buff, 1) == -1);
/* Not really an error but rather a corner case. */
assert(sos_sys_read(fd, buff, 0) == 0);
assert(sos_sys_read(fd, "a_new_file.txt", 1) == -1);
assert(sos_sys_close(fd) == 0);
assert(sos_sys_read(fd, buff, 1) == -1);
fd = sos_sys_open("console", O_RDONLY);
assert(sos_sys_open("console", O_RDONLY) == -1);
assert(sos_sys_close(fd) == 0);
assert(sos_sys_open("swap", O_RDONLY) == -1);
char name_buff[MAX_PATH_LENGTH];
assert(sos_getdirent(-1, name_buff, MAX_PATH_LENGTH) == -1);
assert(sos_getdirent(-34214, name_buff, MAX_PATH_LENGTH) == -1);
assert(sos_getdirent(342423, name_buff, MAX_PATH_LENGTH) == -1);
assert(sos_getdirent(0, name_buff, ~0) == -1);
assert(sos_getdirent(0, "a_new_file.txt", 100) == -1);
assert(sos_getdirent(0, NULL, 100) == -1);
assert(sos_getdirent(0, (void *)~0, 1000) == -1);
assert(sos_getdirent(0, name_buff, 0) == -1);
sos_stat_t stat;
assert(sos_stat("non_existant_file.wmv", &stat) == -1);
assert(sos_stat(NULL, &stat) == -1);
assert(sos_stat((void *)1000, &stat) == -1);
assert(sos_stat((void *)~0, &stat) == -1);
assert(sos_stat("a_new_file.txt", NULL) == -1);
assert(sos_stat("a_new_file.txt", (void *)~0) == -1);
assert(sos_stat("a_new_file.txt", (void *)1000) == -1);
assert(sos_stat("a_new_file.txt", (void *)"a_new_file.txt") == -1);
int fd_buff[10000];
printf("Opening files until failure. This might take a bit...\n");
int i;
for (i = 0; i < 10000; i++) {
fd_buff[i] = sos_sys_open("a_new_file.txt", O_RDONLY);
if (fd_buff[i] == -1) {
break;
}
}
assert(i < 10000);
printf("Closing all open files. This might take a bit...\n");
for (i = 0; i < 10000; i++) {
if (fd_buff[i] == -1) {
break;
}
assert(sos_sys_close(fd_buff[i]) == 0);
}
fd = sos_sys_open("a_new_file.txt", O_RDONLY);
assert(fd != -1);
assert(sos_sys_close(fd) == 0);
}