Nils O. Selåsdal
101 lines
1.7 KiB
C
101 lines
1.7 KiB
C
#include <errno.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include <unistd.h>
|
|
|
|
|
|
static int uc_mkdir(const char *full_path, mode_t mode)
|
|
{
|
|
struct stat st;
|
|
int rc;
|
|
|
|
rc = stat(full_path, &st);
|
|
if (rc == -1 && errno == ENOENT) {
|
|
rc = mkdir(full_path, mode);
|
|
if (rc == -1 && errno != EEXIST) {
|
|
return -1;
|
|
}
|
|
} else if (rc == 0) {
|
|
if (!S_ISDIR(st.st_mode)) {
|
|
errno = ENOTDIR;
|
|
return -1;
|
|
}
|
|
} else {
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int uc_mkdir_p(const char *full_path, mode_t mode)
|
|
{
|
|
struct stat st;
|
|
int rc;
|
|
char *path;
|
|
char *p;
|
|
int create_final = 1;
|
|
|
|
if (full_path == NULL || full_path[0] == 0) {
|
|
errno = EINVAL;
|
|
return -1;
|
|
}
|
|
|
|
rc = stat(full_path, &st);
|
|
if (rc == 0) { //already exists
|
|
if (!S_ISDIR(st.st_mode)) {
|
|
errno = ENOTDIR;
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
path = strdup(full_path);
|
|
if (path == NULL) {
|
|
return -1;
|
|
}
|
|
|
|
//skip leading /
|
|
for (p = path; *p == '/'; p++)
|
|
;
|
|
|
|
for (;;) {
|
|
p = strchr(p, '/');
|
|
if (p == NULL) {
|
|
break;
|
|
}
|
|
|
|
*p = 0;
|
|
|
|
rc = uc_mkdir(path, mode);
|
|
if (rc != 0) {
|
|
free(path);
|
|
return -1;
|
|
}
|
|
|
|
*p = '/';
|
|
//in case of multiple / , e.g. foo//bar
|
|
for (; *p == '/'; p++)
|
|
;
|
|
|
|
if (*p == 0) {
|
|
create_final = 0;
|
|
break;
|
|
}
|
|
}
|
|
|
|
//last part, in case full_path does not end with a /
|
|
if (create_final) {
|
|
rc = uc_mkdir(path, mode);
|
|
} else {
|
|
rc = 0;
|
|
}
|
|
|
|
free(path);
|
|
|
|
return rc;
|
|
}
|
|
|