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sys: add packagelist method

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Add method to list installed software packages directly from
/usr/lib/opkg/status (ie. no need to have opkg installed).

ubus call rpc-sys packagelist

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
This commit is contained in:
Daniel Golle 2017-11-12 17:25:18 +01:00
parent 9a8640183c
commit 4e483312b0
1 changed files with 79 additions and 0 deletions
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79
sys.c
View file

@ -153,6 +153,84 @@ rpc_cgi_password_set(struct ubus_context *ctx, struct ubus_object *obj,
}
}
static int
rpc_sys_packagelist(struct ubus_context *ctx, struct ubus_object *obj,
struct ubus_request_data *req, const char *method,
struct blob_attr *msg)
{
struct blob_buf buf = { 0 };
char var[256], pkg[128], ver[128];
char *tmp, *p1, *p2, *p3;
void *tbl;
FILE *f = fopen("/usr/lib/opkg/status", "r");
if (!f)
return UBUS_STATUS_NOT_FOUND;
blob_buf_init(&buf, 0);
tbl = blobmsg_open_table(&buf, "packages");
pkg[0] = ver[0] = '\0';
while(fgets(var, sizeof(var), f)) {
p1 = strchr(var, ' ');
p2 = p3 = NULL;
if (!p1)
goto procstr;
*p1++ = '\0';
p2 = strchr(p1, ' ');
if (!p2) {
tmp = strchr(p1, '\n');
if (tmp)
*tmp = '\0';
goto procstr;
}
*p2++ = '\0';
p3 = strchr(p2, ' ');
if (!p3) {
tmp = strchr(p2, '\n');
if (tmp)
*tmp = '\0';
goto procstr;
}
*p3++ = '\0';
tmp = strchr(p3, '\n');
if (tmp)
*tmp = '\0';
procstr:
if (!p1)
continue;
if (!strcmp(var, "Package:")) {
strncpy(pkg, p1, sizeof(pkg));
continue;
}
if (!strcmp(var, "Version:")) {
strncpy(ver, p1, sizeof(ver));
continue;
}
if (p2 && p3 &&
!strcmp(var, "Status:") &&
!strcmp(p1, "install") &&
!strcmp(p2, "user") &&
!strcmp(p3, "installed") && pkg[0] && ver[0]) {
blobmsg_add_string(&buf, pkg, ver);
pkg[0] = ver[0] = '\0';
}
}
blobmsg_close_table(&buf, tbl);
ubus_send_reply(ctx, req, buf.head);
fclose(f);
return 0;
}
static int
rpc_sys_upgrade_test(struct ubus_context *ctx, struct ubus_object *obj,
struct ubus_request_data *req, const char *method,
@ -234,6 +312,7 @@ static int
rpc_sys_api_init(const struct rpc_daemon_ops *o, struct ubus_context *ctx)
{
static const struct ubus_method sys_methods[] = {
UBUS_METHOD_NOARG("packagelist", rpc_sys_packagelist),
UBUS_METHOD("password_set", rpc_cgi_password_set, rpc_password_policy),
UBUS_METHOD_NOARG("upgrade_test", rpc_sys_upgrade_test),
UBUS_METHOD("upgrade_start", rpc_sys_upgrade_start,