X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Futil.c;h=11f77abde14412f50c6032d56c3616e2444a103d;hb=e0d25329b23a43332ea340f9907721873a316f4e;hp=1babb6aed457060ed11f0e79636a29ffc4da8d84;hpb=8f2d43a0121bc9a57ba8b79b33d5ac87d36ca2f2;p=elogind.git

diff --git a/src/util.c b/src/util.c
index 1babb6aed..11f77abde 100644
--- a/src/util.c
+++ b/src/util.c
@@ -2544,7 +2544,7 @@ int ask(char *ret, const char *replies, const char *text, ...) {
         }
 }
 
-int reset_terminal_fd(int fd) {
+int reset_terminal_fd(int fd, bool switch_to_text) {
         struct termios termios;
         int r = 0;
 
@@ -2560,7 +2560,8 @@ int reset_terminal_fd(int fd) {
         ioctl(fd, TIOCNXCL);
 
         /* Switch to text mode */
-        ioctl(fd, KDSETMODE, KD_TEXT);
+        if (switch_to_text)
+                ioctl(fd, KDSETMODE, KD_TEXT);
 
         /* Enable console unicode mode */
         ioctl(fd, KDSKBMODE, K_UNICODE);
@@ -2614,7 +2615,7 @@ int reset_terminal(const char *name) {
         if (fd < 0)
                 return fd;
 
-        r = reset_terminal_fd(fd);
+        r = reset_terminal_fd(fd, true);
         close_nointr_nofail(fd);
 
         return r;
@@ -2808,7 +2809,8 @@ int acquire_terminal(const char *name, bool fail, bool force, bool ignore_tiocst
         if (notify >= 0)
                 close_nointr_nofail(notify);
 
-        if ((r = reset_terminal_fd(fd)) < 0)
+        r = reset_terminal_fd(fd, true);
+        if (r < 0)
                 log_warning("Failed to reset terminal: %s", strerror(-r));
 
         return fd;
@@ -3261,11 +3263,15 @@ fallback:
 void rename_process(const char name[8]) {
         assert(name);
 
-        prctl(PR_SET_NAME, name);
+        /* This is a like a poor man's setproctitle(). It changes the
+         * comm field, argv[0], and also the glibc's internally used
+         * name of the process. For the first one a limit of 16 chars
+         * applies, to the second one usually one of 10 (i.e. length
+         * of "/sbin/init"), to the third one one of 7 (i.e. length of
+         * "systemd"). If you pass a longer string it will be
+         * truncated */
 
-        /* This is a like a poor man's setproctitle(). The string
-         * passed should fit in 7 chars (i.e. the length of
-         * "systemd") */
+        prctl(PR_SET_NAME, name);
 
         if (program_invocation_name)
                 strncpy(program_invocation_name, name, strlen(program_invocation_name));
@@ -4617,11 +4623,12 @@ void execute_directory(const char *directory, DIR *d, char *argv[]) {
         }
 
         while (!hashmap_isempty(pids)) {
+                pid_t pid = PTR_TO_UINT(hashmap_first_key(pids));
                 siginfo_t si;
                 char *path;
 
                 zero(si);
-                if (waitid(P_ALL, 0, &si, WEXITED) < 0) {
+                if (waitid(P_PID, pid, &si, WEXITED) < 0) {
 
                         if (errno == EINTR)
                                 continue;
@@ -5235,8 +5242,14 @@ int rtc_open(int flags) {
         int fd;
         DIR *d;
 
-        /* We open the first RTC which has hctosys=1 set. If we don't
-         * find any we just take the first one */
+        /* First, we try to make use of the /dev/rtc symlink. If that
+         * doesn't exist, we open the first RTC which has hctosys=1
+         * set. If we don't find any we just take the first RTC that
+         * exists at all. */
+
+        fd = open("/dev/rtc", flags);
+        if (fd >= 0)
+                return fd;
 
         d = opendir("/sys/class/rtc");
         if (!d)
@@ -6273,3 +6286,39 @@ void* memdup(const void *p, size_t l) {
         memcpy(r, p, l);
         return r;
 }
+
+int fd_inc_sndbuf(int fd, size_t n) {
+        int r, value;
+        socklen_t l = sizeof(value);
+
+        r = getsockopt(fd, SOL_SOCKET, SO_SNDBUF, &value, &l);
+        if (r >= 0 &&
+            l == sizeof(value) &&
+            (size_t) value >= n*2)
+                return 0;
+
+        value = (int) n;
+        r = setsockopt(fd, SOL_SOCKET, SO_SNDBUF, &value, sizeof(value));
+        if (r < 0)
+                return -errno;
+
+        return 1;
+}
+
+int fd_inc_rcvbuf(int fd, size_t n) {
+        int r, value;
+        socklen_t l = sizeof(value);
+
+        r = getsockopt(fd, SOL_SOCKET, SO_RCVBUF, &value, &l);
+        if (r >= 0 &&
+            l == sizeof(value) &&
+            (size_t) value >= n*2)
+                return 0;
+
+        value = (int) n;
+        r = setsockopt(fd, SOL_SOCKET, SO_RCVBUF, &value, sizeof(value));
+        if (r < 0)
+                return -errno;
+
+        return 1;
+}