char *GetParentDirectoryCopy(const char *path)
/**
* WARNING: Remember to free return value.
**/
{
assert(path);
assert(strlen(path) > 0);
char *path_copy = xstrdup(path);
if(strcmp(path_copy, "/") == 0)
{
return path_copy;
}
char *sp = (char *)LastFileSeparator(path_copy);
if(!sp)
{
Log(LOG_LEVEL_ERR, "Path %s does not contain file separators (GetParentDirectory())", path_copy);
free(path_copy);
return NULL;
}
if(sp == FirstFileSeparator(path_copy)) // don't chop off first path separator
{
*(sp + 1) = '\0';
}
else
{
*sp = '\0';
}
return path_copy;
}
static void test_first_file_separator(void **state)
{
const char *out;
char *in1 = "/tmp/myfile";
out = FirstFileSeparator(in1);
assert_true(out == in1);
char *in2 = "/tmp/myfile";
out = FirstFileSeparator(in2);
assert_true(out == in2);
char *in3 = "c:\\tmp\\myfile";
out = FirstFileSeparator(in3);
assert_true(out == in3 + 2);
char *in4 = "\\\\my\\windows\\share";
out = FirstFileSeparator(in4);
assert_true(out == in4 + 1);
}
bool ChopLastNode(char *str)
/* Chop off trailing node name (possible blank) starting from
last character and removing up to the first / encountered
e.g. /a/b/c -> /a/b
/a/b/ -> /a/b
Will also collapse redundant/repeating path separators.
*/
{
char *sp;
int ret;
DeleteRedundantSlashes(str);
/* Here cast is necessary and harmless, str is modifiable */
if ((sp = (char *) LastFileSeparator(str)) == NULL)
{
int pos = RootDirLength(str);
if (str[pos] == '\0')
{
ret = false;
}
else
{
str[pos] = '.';
str[pos + 1] = '\0';
ret = true;
}
}
else
{
// Don't chop the root slash in an absolute path.
if (IsAbsoluteFileName(str) && FirstFileSeparator(str) == sp)
{
*(++sp) = '\0';
}
else
{
*sp = '\0';
}
ret = true;
}
return ret;
}
