X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Fshared%2Futil.c;h=ad548da82ab7663d0cda69b3e5d291c8acefb712;hb=093c2cfe3b1ae6081f12927ae7906d90d6623534;hp=55de83023d53c1e6c34226e532df505418473561;hpb=f85ef957e647c5182acf5e64298f68e4b7fbfe8f;p=elogind.git

diff --git a/src/shared/util.c b/src/shared/util.c
index 55de83023..ad548da82 100644
--- a/src/shared/util.c
+++ b/src/shared/util.c
@@ -94,6 +94,9 @@
 #include "def.h"
 #include "sparse-endian.h"
 
+/* Put this test here for a lack of better place */
+assert_cc(EAGAIN == EWOULDBLOCK);
+
 int saved_argc = 0;
 char **saved_argv = NULL;
 
@@ -2923,31 +2926,30 @@ int get_ctty(pid_t pid, dev_t *_devnr, char **r) {
 
                 /* This is an ugly hack */
                 if (major(devnr) == 136) {
-                        asprintf(&b, "pts/%u", minor(devnr));
-                        goto finish;
-                }
+                        if (asprintf(&b, "pts/%u", minor(devnr)) < 0)
+                                return -ENOMEM;
+                } else {
+                        /* Probably something like the ptys which have no
+                         * symlink in /dev/char. Let's return something
+                         * vaguely useful. */
 
-                /* Probably something like the ptys which have no
-                 * symlink in /dev/char. Let's return something
-                 * vaguely useful. */
+                        b = strdup(fn + 5);
+                        if (!b)
+                                return -ENOMEM;
+                }
+        } else {
+                if (startswith(s, "/dev/"))
+                        p = s + 5;
+                else if (startswith(s, "../"))
+                        p = s + 3;
+                else
+                        p = s;
 
-                b = strdup(fn + 5);
-                goto finish;
+                b = strdup(p);
+                if (!b)
+                        return -ENOMEM;
         }
 
-        if (startswith(s, "/dev/"))
-                p = s + 5;
-        else if (startswith(s, "../"))
-                p = s + 3;
-        else
-                p = s;
-
-        b = strdup(p);
-
-finish:
-        if (!b)
-                return -ENOMEM;
-
         *r = b;
         if (_devnr)
                 *_devnr = devnr;
@@ -4119,8 +4121,7 @@ static int do_execute(char **directories, usec_t timeout, char *argv[]) {
                         if (null_or_empty_path(path)) {
                                 log_debug("%s is empty (a mask).", path);
                                 continue;
-                        } else
-                                log_debug("%s will be executed.", path);
+                        }
 
                         pid = fork();
                         if (pid < 0) {
@@ -6668,7 +6669,7 @@ int getpeersec(int fd, char **ret) {
 
         if (isempty(s)) {
                 free(s);
-                return -ENOTSUP;
+                return -EOPNOTSUPP;
         }
 
         *ret = s;
@@ -7842,6 +7843,28 @@ int chattr_path(const char *p, bool b, unsigned mask) {
         return chattr_fd(fd, b, mask);
 }
 
+int change_attr_fd(int fd, unsigned value, unsigned mask) {
+        unsigned old_attr, new_attr;
+
+        assert(fd >= 0);
+
+        if (mask == 0)
+                return 0;
+
+        if (ioctl(fd, FS_IOC_GETFLAGS, &old_attr) < 0)
+                return -errno;
+
+        new_attr = (old_attr & ~mask) |(value & mask);
+
+        if (new_attr == old_attr)
+                return 0;
+
+        if (ioctl(fd, FS_IOC_SETFLAGS, &new_attr) < 0)
+                return -errno;
+
+        return 0;
+}
+
 int read_attr_fd(int fd, unsigned *ret) {
         assert(fd >= 0);