ifupdown: support "source-directory" stanza

Support the "source-directory" stanza from ifupdown[1]. source-directory
will include all files in the named directory. Similar to the Busybox
version of the "source" stanza, this version of source-directory does
not currently support shell wildcards.

We only check that the stanza starts with "source-dir" as ifupdown does[2].

[1] https://manpages.debian.org/stretch/ifupdown/interfaces.5.en.html#INCLUDING_OTHER_FILES
[2] https://salsa.debian.org/debian/ifupdown/blob/0.8.33/config.c#L498

function                                             old     new   delta
read_interfaces                                     1150    1241     +91

Signed-off-by: Brandon Maier <brandon.maier@rockwellcollins.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Brandon Maier 2018-09-21 12:54:05 -05:00 committed by Denys Vlasenko
parent abfa3ec059
commit 14454b3071

View File

@ -1022,6 +1022,22 @@ static struct interfaces_file_t *read_interfaces(const char *filename, struct in
currently_processing = NONE;
} else if (strcmp(first_word, "source") == 0) {
read_interfaces(next_word(&rest_of_line), defn);
} else if (is_prefixed_with(first_word, "source-dir")) {
const char *dirpath;
DIR *dir;
struct dirent *entry;
dirpath = next_word(&rest_of_line);
dir = xopendir(dirpath);
while ((entry = readdir(dir)) != NULL) {
char *path;
if (entry->d_name[0] == '.')
continue;
path = concat_path_file(dirpath, entry->d_name);
read_interfaces(path, defn);
free(path);
}
closedir(dir);
} else {
switch (currently_processing) {
case IFACE: