int test_dot(void)
{
errorf("\n"); /* prints the function name */
File *file = newfile("", ".");
assert(strcmp(getname(file), ".") == 0);
assert(strcmp(getpath(file), ".") == 0);
char *dir = getdirname(file);
assert(strcmp(dir, ".") == 0);
free(dir);
free(file);
return 0;
}
int test_bare_file(void)
{
errorf("\n"); /* prints the function name */
File *file = newfile(".", "buf.c");
assert(strcmp(getname(file), "buf.c") == 0);
assert(strcmp(getpath(file), "./buf.c") == 0);
char *dir = getdirname(file);
assert(strcmp(dir, ".") == 0);
free(dir);
char *base = getbasename(file);
assert(strcmp(base, "buf.c") == 0);
free(base);
free(file);
return 0;
}
int test_relative_file(void)
{
errorf("\n"); /* prints the function name */
File *file = newfile(".", "../tmp/foo");
assert(strcmp(getname(file), "../tmp/foo") == 0);
assert(strcmp(getpath(file), "./../tmp/foo") == 0);
char *dir = getdirname(file);
assert(strcmp(dir, "./../tmp") == 0);
free(dir);
char *base = getbasename(file);
assert(strcmp(base, "foo") == 0);
free(base);
free(file);
return 0;
}
File *gettarget(File *file)
{
if (!file) {
errorf("file is NULL\n");
return NULL;
}
if (!islink(file)) {
errorf("%s is not a symlink\n", file->path);
return NULL;
}
if (!file->target) {
char targetpath[PATH_MAX];
/* note: readlink(3p) not readlink(2) */
errno = 0;
int nchars = readlink(file->path, targetpath, sizeof(targetpath)-1);
if (nchars == -1) {
errorf("Error getting symlink target: %s\n", strerror(errno));
return NULL;
} else if (nchars == sizeof(targetpath)-1) {
errorf("Symlink target too long for buffer\n");
return NULL;
}
targetpath[nchars] = '\0';
char *dir = getdirname(file);
if (dir == NULL) {
errorf("getdirname returned NULL\n");
return NULL;
}
file->target = newfile(dir, targetpath);
free(dir);
if (file->target == NULL) {
errorf("newfile returned NULL\n");
return NULL;
}
}
return file->target;
}
