core: when enabling a generated unit file, return a clean error

[elogind.git] / src / libelogind / sd-daemon / sd-daemon.c

diff --git a/src/libelogind/sd-daemon/sd-daemon.c b/src/libelogind/sd-daemon/sd-daemon.c
index 172409b73a3b7e4d04b9edfbfb4358badf610bd9..773112249b185b5f1f5d26dee97ad597a193f5f3 100644 (file)
--- a/src/libelogind/sd-daemon/sd-daemon.c
+++ b/src/libelogind/sd-daemon/sd-daemon.c
@@ -1,5 +1,3 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
 /***
   This file is part of systemd.
 
@@ -21,7 +19,7 @@
 
 #include <errno.h>
 #include <limits.h>
-//#include <mqueue.h>
+#include <mqueue.h>
 #include <netinet/in.h>
 #include <stdarg.h>
 #include <stddef.h>
@@ -33,15 +31,20 @@
 #include <sys/un.h>
 #include <unistd.h>
 
+#include "sd-daemon.h"
+
+#include "alloc-util.h"
+#include "fd-util.h"
+//#include "fs-util.h"
+#include "parse-util.h"
 #include "path-util.h"
 #include "socket-util.h"
-//#include "strv.h"
+#include "strv.h"
 #include "util.h"
 
-#include "sd-daemon.h"
+#define SNDBUF_SIZE (8*1024*1024)
 
-/// UNNEEDED by elogind
-#if 0
+#if 0 /// UNNEEDED by elogind
 static void unsetenv_all(bool unset_environment) {
 
         if (!unset_environment)
@@ -54,8 +57,7 @@ static void unsetenv_all(bool unset_environment) {
 
 _public_ int sd_listen_fds(int unset_environment) {
         const char *e;
-        unsigned n;
-        int r, fd;
+        int n, r, fd;
         pid_t pid;
 
         e = getenv("LISTEN_PID");
@@ -80,17 +82,23 @@ _public_ int sd_listen_fds(int unset_environment) {
                 goto finish;
         }
 
-        r = safe_atou(e, &n);
+        r = safe_atoi(e, &n);
         if (r < 0)
                 goto finish;
 
-        for (fd = SD_LISTEN_FDS_START; fd < SD_LISTEN_FDS_START + (int) n; fd ++) {
+        assert_cc(SD_LISTEN_FDS_START < INT_MAX);
+        if (n <= 0 || n > INT_MAX - SD_LISTEN_FDS_START) {
+                r = -EINVAL;
+                goto finish;
+        }
+
+        for (fd = SD_LISTEN_FDS_START; fd < SD_LISTEN_FDS_START + n; fd ++) {
                 r = fd_cloexec(fd, true);
                 if (r < 0)
                         goto finish;
         }
 
-        r = (int) n;
+        r = n;
 
 finish:
         unsetenv_all(unset_environment);
@@ -273,8 +281,7 @@ _public_ int sd_is_socket(int fd, int family, int type, int listening) {
         return 1;
 }
 
-/// UNNEEDED by elogind
-#if 0
+#if 0 /// UNNEEDED by elogind
 _public_ int sd_is_socket_inet(int fd, int family, int type, int listening, uint16_t port) {
         union sockaddr_union sockaddr = {};
         socklen_t l = sizeof(sockaddr);
@@ -447,6 +454,8 @@ _public_ int sd_pid_notify_with_fds(pid_t pid, int unset_environment, const char
                 goto finish;
         }
 
+        fd_inc_sndbuf(fd, SNDBUF_SIZE);
+
         iovec.iov_len = strlen(state);
 
         strncpy(sockaddr.un.sun_path, e, sizeof(sockaddr.un.sun_path));
@@ -460,7 +469,7 @@ _public_ int sd_pid_notify_with_fds(pid_t pid, int unset_environment, const char
         have_pid = pid != 0 && pid != getpid();
 
         if (n_fds > 0 || have_pid) {
-                /* CMSG_SPACE(0) may return value different then zero, which results in miscalculated controllen. */
+                /* CMSG_SPACE(0) may return value different than zero, which results in miscalculated controllen. */
                 msghdr.msg_controllen =
                         (n_fds > 0 ? CMSG_SPACE(sizeof(int) * n_fds) : 0) +
                         (have_pid ? CMSG_SPACE(sizeof(struct ucred)) : 0);
@@ -520,8 +529,7 @@ finish:
         return r;
 }
 
-/// UNNEEDED by elogind
-#if 0
+#if 0 /// UNNEEDED by elogind
 _public_ int sd_pid_notify(pid_t pid, int unset_environment, const char *state) {
         return sd_pid_notify_with_fds(pid, unset_environment, state, NULL, 0);
 }
@@ -531,8 +539,7 @@ _public_ int sd_notify(int unset_environment, const char *state) {
         return sd_pid_notify_with_fds(0, unset_environment, state, NULL, 0);
 }
 
-/// UNNEEDED by elogind
-#if 0
+#if 0 /// UNNEEDED by elogind
 _public_ int sd_pid_notifyf(pid_t pid, int unset_environment, const char *format, ...) {
         _cleanup_free_ char *p = NULL;
         int r;
@@ -590,7 +597,7 @@ _public_ int sd_watchdog_enabled(int unset_environment, uint64_t *usec) {
         r = safe_atou64(s, &u);
         if (r < 0)
                 goto finish;
-        if (u <= 0) {
+        if (u <= 0 || u >= USEC_INFINITY) {
                 r = -EINVAL;
                 goto finish;
         }