static long
krb5int_get_plugin_filenames (const char * const *filebases, char ***filenames)
{
long err = 0;
static const char *const fileexts[] = FILEEXTS;
char **tempnames = NULL;
size_t bases_count = 0;
size_t exts_count = 0;
size_t i;
if (!filebases) { err = EINVAL; }
if (!filenames) { err = EINVAL; }
if (!err) {
for (i = 0; filebases[i]; i++) { bases_count++; }
for (i = 0; fileexts[i]; i++) { exts_count++; }
tempnames = calloc ((bases_count * exts_count)+1, sizeof (char *));
if (!tempnames) { err = ENOMEM; }
}
if (!err) {
size_t j;
for (i = 0; !err && filebases[i]; i++) {
for (j = 0; !err && fileexts[j]; j++) {
if (asprintf(&tempnames[(i*exts_count)+j], "%s%s",
filebases[i], fileexts[j]) < 0) {
tempnames[(i*exts_count)+j] = NULL;
err = ENOMEM;
}
}
}
tempnames[bases_count * exts_count] = NULL; /* NUL-terminate */
}
if (!err) {
*filenames = tempnames;
tempnames = NULL;
}
krb5int_free_plugin_filenames(tempnames);
return err;
}
static long
krb5int_get_plugin_filenames (const char * const *filebases, char ***filenames)
{
long err = 0;
static const char *const fileexts[] = FILEEXTS;
char **tempnames = NULL;
int i;
if (!err) {
size_t count = 0;
for (i = 0; filebases[i] != NULL; i++, count++);
for (i = 0; fileexts[i] != NULL; i++, count++);
tempnames = calloc (count, sizeof (char *));
if (tempnames == NULL) { err = errno; }
}
if (!err) {
int j;
for (i = 0; !err && (filebases[i] != NULL); i++) {
size_t baselen = strlen (filebases[i]);
for (j = 0; !err && (fileexts[j] != NULL); j++) {
size_t len = baselen + strlen (fileexts[j]) + 2; /* '.' + NULL */
tempnames[i+j] = malloc (len * sizeof (char));
if (tempnames[i+j] == NULL) {
err = errno;
} else {
/*LINTED*/
sprintf (tempnames[i+j], "%s%s", filebases[i], fileexts[j]);
}
}
}
}
if (!err) {
*filenames = tempnames;
tempnames = NULL;
}
if (tempnames != NULL) { krb5int_free_plugin_filenames (tempnames); }
return err;
}
long KRB5_CALLCONV
krb5int_open_plugin_dirs (const char * const *dirnames,
const char * const *filebases,
struct plugin_dir_handle *dirhandle,
struct errinfo *ep)
{
long err = 0;
struct plugin_file_handle **h = NULL;
int count = 0;
char **filenames = NULL;
int i;
if (!err) {
err = krb5int_plugin_file_handle_array_init (&h);
}
if (!err && (filebases != NULL)) {
err = krb5int_get_plugin_filenames (filebases, &filenames);
}
for (i = 0; !err && dirnames[i] != NULL; i++) {
size_t dirnamelen = strlen (dirnames[i]) + 1; /* '/' */
if (filenames != NULL) {
/* load plugins with names from filenames from each directory */
int j;
for (j = 0; !err && filenames[j] != NULL; j++) {
struct plugin_file_handle *handle = NULL;
char *filepath = NULL;
if (!err) {
filepath = malloc (dirnamelen + strlen (filenames[j]) + 1); /* NULL */
if (filepath == NULL) {
err = errno;
} else {
/*LINTED*/
sprintf (filepath, "%s/%s", dirnames[i], filenames[j]);
}
}
if (krb5int_open_plugin (filepath, &handle, ep) == 0) {
err = krb5int_plugin_file_handle_array_add (&h, &count, handle);
if (!err) { handle = NULL; } /* h takes ownership */
}
if (filepath != NULL) { free (filepath); }
if (handle != NULL) { krb5int_close_plugin (handle); }
}
} else {
/* load all plugins in each directory */
#ifndef _WIN32
DIR *dir = opendir (dirnames[i]);
while (dir != NULL && !err) {
struct dirent *d = NULL;
char *filepath = NULL;
struct plugin_file_handle *handle = NULL;
int len;
d = readdir (dir);
if (d == NULL) { break; }
if ((strcmp (d->d_name, ".") == 0) ||
(strcmp (d->d_name, "..") == 0)) {
continue;
}
/* Solaris Kerberos: Only open files with a .so extension */
len = NAMELEN (d);
if (len < 3 || strcmp(".so", d->d_name + len - 3 ) != 0)
continue;
if (!err) {
filepath = malloc (dirnamelen + len + 1); /* NULL */
if (filepath == NULL) {
err = errno;
} else {
/*LINTED*/
sprintf (filepath, "%s/%*s", dirnames[i], len, d->d_name);
}
}
if (!err) {
if (krb5int_open_plugin (filepath, &handle, ep) == 0) {
err = krb5int_plugin_file_handle_array_add (&h, &count, handle);
if (!err) { handle = NULL; } /* h takes ownership */
}
}
if (filepath != NULL) { free (filepath); }
if (handle != NULL) { krb5int_close_plugin (handle); }
}
if (dir != NULL) { closedir (dir); }
#else
/* Until a Windows implementation of this code is implemented */
err = ENOENT;
#endif /* _WIN32 */
}
}
if (err == ENOENT) {
err = 0; /* ran out of plugins -- do nothing */
}
if (!err) {
dirhandle->files = h;
h = NULL; /* dirhandle->files takes ownership */
}
if (filenames != NULL) { krb5int_free_plugin_filenames (filenames); }
if (h != NULL) { krb5int_plugin_file_handle_array_free (h); }
return err;
}
long KRB5_CALLCONV
krb5int_open_plugin_dirs (const char * const *dirnames,
const char * const *filebases,
struct plugin_dir_handle *dirhandle,
struct errinfo *ep)
{
long err = 0;
struct plugin_file_handle **h = NULL;
size_t count = 0;
char **filenames = NULL;
int i;
if (!err) {
err = krb5int_plugin_file_handle_array_init (&h);
}
if (!err && (filebases != NULL)) {
err = krb5int_get_plugin_filenames (filebases, &filenames);
}
for (i = 0; !err && dirnames[i] != NULL; i++) {
if (filenames != NULL) {
/* load plugins with names from filenames from each directory */
int j;
for (j = 0; !err && filenames[j] != NULL; j++) {
struct plugin_file_handle *handle = NULL;
char *filepath = NULL;
if (!err) {
if (asprintf(&filepath, "%s/%s", dirnames[i], filenames[j]) < 0) {
filepath = NULL;
err = ENOMEM;
}
}
if (krb5int_open_plugin (filepath, &handle, ep) == 0) {
err = krb5int_plugin_file_handle_array_add (&h, &count, handle);
if (!err) { handle = NULL; } /* h takes ownership */
}
free(filepath);
if (handle != NULL) { krb5int_close_plugin (handle); }
}
} else {
/* load all plugins in each directory */
DIR *dir = opendir (dirnames[i]);
while (dir != NULL && !err) {
struct dirent *d = NULL;
char *filepath = NULL;
struct plugin_file_handle *handle = NULL;
d = readdir (dir);
if (d == NULL) { break; }
if ((strcmp (d->d_name, ".") == 0) ||
(strcmp (d->d_name, "..") == 0)) {
continue;
}
if (!err) {
int len = NAMELEN (d);
if (asprintf(&filepath, "%s/%*s", dirnames[i], len, d->d_name) < 0) {
filepath = NULL;
err = ENOMEM;
}
}
if (!err) {
if (krb5int_open_plugin (filepath, &handle, ep) == 0) {
err = krb5int_plugin_file_handle_array_add (&h, &count, handle);
if (!err) { handle = NULL; } /* h takes ownership */
}
}
free(filepath);
if (handle != NULL) { krb5int_close_plugin (handle); }
}
if (dir != NULL) { closedir (dir); }
}
}
if (err == ENOENT) {
err = 0; /* ran out of plugins -- do nothing */
}
if (!err) {
dirhandle->files = h;
h = NULL; /* dirhandle->files takes ownership */
}
if (filenames != NULL) { krb5int_free_plugin_filenames (filenames); }
if (h != NULL) { krb5int_plugin_file_handle_array_free (h); }
return err;
}
