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[config] mkdir_with_parents for config directory

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Based on glib2 code
This commit is contained in:
Witold Filipczyk 2024-03-27 15:47:32 +01:00
parent f2690c3e21
commit d12dacf6ab
1 changed files with 124 additions and 1 deletions
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125
src/config/home.c
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@ -39,6 +39,127 @@ strip_trailing_dir_sep(char *path)
path[i + 1] = 0;
}
#if defined _WIN32 || defined __WIN32__ || defined __EMX__ || defined __DJGPP__
/* Win32, OS/2, DOS */
#define HAS_DEVICE(P) (isasciialpha((P)[0]) && (P)[1] == ':')
#define IS_ABSOLUTE_PATH(P) (dir_sep((P)[0]) || HAS_DEVICE (P))
#define IS_PATH_WITH_DIR(P) (strchr ((const char *)(P), '/') || strchr ((const char *)(P), '\\') || HAS_DEVICE (P))
#else
/* Unix */
#define IS_ABSOLUTE_PATH(P) dir_sep((P)[0])
#define IS_PATH_WITH_DIR(P) strchr ((const char *)(P), '/')
#endif
static char *
path_skip_root(const char *file_name)
{
#if defined _WIN32 || defined __WIN32__ || defined __EMX__ || defined __DJGPP__
/* Skip \\server\share or //server/share */
if (dir_sep(file_name[0]) && dir_sep(file_name[1]) && file_name[2] && !dir_sep(file_name[2])) {
char *p = strchr (file_name + 2, CHAR_DIR_SEP);
#ifdef CONFIG_WIN32
{
char *q = strchr (file_name + 2, '/');
if (p == NULL || (q != NULL && q < p)) {
p = q;
}
}
#endif
if (p && p > file_name + 2 && p[1]) {
file_name = p + 1;
while (file_name[0] && !dir_sep(file_name[0])) {
file_name++;
}
/* Possibly skip a backslash after the share name */
if (dir_sep(file_name[0])) {
file_name++;
}
return (char *)file_name;
}
}
#endif
/* Skip initial slashes */
if (dir_sep(file_name[0])) {
while (dir_sep(file_name[0])) {
file_name++;
}
return (char *)file_name;
}
#if defined _WIN32 || defined __WIN32__ || defined __EMX__ || defined __DJGPP__
/* Skip X:\ */
if (HAS_DEVICE(file_name) && dir_sep(file_name[2])) {
return (char *)file_name + 3;
}
#endif
return NULL;
}
static int
mkdir_with_parents(const char *pathname, mode_t mode)
{
char *fn = stracpy(pathname);
char *p;
if (!fn) {
return -1;
}
if (IS_ABSOLUTE_PATH(fn)) {
p = path_skip_root(fn);
} else {
p = fn;
}
do {
struct stat st;
while (*p && !dir_sep(*p)) {
p++;
}
if (!*p) {
p = NULL;
} else {
*p = '\0';
}
if (stat(fn, &st)) {
if (mkdir(fn, mode) == -1 && errno != EEXIST) {
int errno_save = errno;
if (errno != ENOENT || !p) {
mem_free(fn);
errno = errno_save;
return -1;
}
}
} else {
if (!S_ISDIR(st.st_mode)) {
mem_free(fn);
errno = ENOTDIR;
return -1;
}
}
if (p) {
*p++ = CHAR_DIR_SEP;
while (*p && dir_sep(*p)) {
p++;
}
}
} while (p);
mem_free(fn);
return 0;
}
static char *
test_confdir(const char *home, const char *path,
char *error_message)
@ -69,7 +190,9 @@ test_confdir(const char *home, const char *path,
#endif
return confdir;
}
if (!mkdir_with_parents(confdir, 0700)) {
return confdir;
}
} else if (S_ISDIR(st.st_mode)) {
first_use = 0;
return confdir;