tree-wide: there is no ENOTSUP on linux

Replace ENOTSUP by EOPNOTSUPP as this is what linux actually uses.

src/shared/copy.c

@@ -285,7 +285,7 @@ static int fd_copy_directory(
                 else if (S_ISBLK(buf.st_mode) || S_ISCHR(buf.st_mode))
                         q = fd_copy_node(dirfd(d), de->d_name, &buf, fdt, de->d_name);
                 else
-                        q = -ENOTSUP;
+                        q = -EOPNOTSUPP;
 
                 if (q == -EEXIST && merge)
                         q = 0;
@@ -317,7 +317,7 @@ int copy_tree_at(int fdf, const char *from, int fdt, const char *to, bool merge)
         else if (S_ISBLK(st.st_mode) || S_ISCHR(st.st_mode))
                 return fd_copy_node(fdf, from, &st, fdt, to);
         else
-                return -ENOTSUP;
+                return -EOPNOTSUPP;
 }
 
 int copy_tree(const char *from, const char *to, bool merge) {

src/shared/fw-util.c

@@ -91,10 +91,10 @@ int fw_add_masquerade(
         int r;
 
         if (af != AF_INET)
-                return -ENOTSUP;
+                return -EOPNOTSUPP;
 
         if (protocol != 0 && protocol != IPPROTO_TCP && protocol != IPPROTO_UDP)
-                return -ENOTSUP;
+                return -EOPNOTSUPP;
 
         h = iptc_init("nat");
         if (!h)
@@ -175,10 +175,10 @@ int fw_add_local_dnat(
         assert(add || !previous_remote);
 
         if (af != AF_INET)
-                return -ENOTSUP;
+                return -EOPNOTSUPP;
 
         if (protocol != IPPROTO_TCP && protocol != IPPROTO_UDP)
-                return -ENOTSUP;
+                return -EOPNOTSUPP;
 
         if (local_port <= 0)
                 return -EINVAL;

src/shared/fw-util.h

@@ -60,7 +60,7 @@ static inline int fw_add_masquerade(
                 const char *out_interface,
                 const union in_addr_union *destination,
                 unsigned destination_prefixlen) {
-        return -ENOTSUP;
+        return -EOPNOTSUPP;
 }
 
 static inline int fw_add_local_dnat(
@@ -76,7 +76,7 @@ static inline int fw_add_local_dnat(
                 const union in_addr_union *remote,
                 uint16_t remote_port,
                 const union in_addr_union *previous_remote) {
-        return -ENOTSUP;
+        return -EOPNOTSUPP;
 }
 
 #endif

src/shared/install.c

@@ -1535,7 +1535,7 @@ int unit_file_add_dependency(
 
                 if (state == UNIT_FILE_MASKED || state == UNIT_FILE_MASKED_RUNTIME) {
                         log_error("Failed to enable unit: Unit %s is masked", *i);
-                        return -ENOTSUP;
+                        return -EOPNOTSUPP;
                 }
 
                 r = install_info_add_auto(&c, *i);
@@ -1613,7 +1613,7 @@ int unit_file_enable(
                 state = unit_file_get_state(scope, root_dir, *i);
                 if (state == UNIT_FILE_MASKED || state == UNIT_FILE_MASKED_RUNTIME) {
                         log_error("Failed to enable unit: Unit %s is masked", *i);
-                        return -ENOTSUP;
+                        return -EOPNOTSUPP;
                 }
 
                 r = install_info_add_auto(&c, *i);

src/shared/machine-image.c

@@ -369,7 +369,7 @@ int image_remove(Image *i) {
                 return rm_rf_dangerous(i->path, false, true, false);
 
         default:
-                return -ENOTSUP;
+                return -EOPNOTSUPP;
         }
 }
 
@@ -430,7 +430,7 @@ int image_rename(Image *i, const char *new_name) {
         }
 
         default:
-                return -ENOTSUP;
+                return -EOPNOTSUPP;
         }
 
         if (!new_path)
@@ -498,7 +498,7 @@ int image_clone(Image *i, const char *new_name, bool read_only) {
                 break;
 
         default:
-                return -ENOTSUP;
+                return -EOPNOTSUPP;
         }
 
         if (r < 0)
@@ -563,7 +563,7 @@ int image_read_only(Image *i, bool b) {
         }
 
         default:
-                return -ENOTSUP;
+                return -EOPNOTSUPP;
         }
 
         return 0;
@@ -622,7 +622,7 @@ int image_set_limit(Image *i, uint64_t referenced_max) {
                 return -EROFS;
 
         if (i->type != IMAGE_SUBVOLUME)
-                return -ENOTSUP;
+                return -EOPNOTSUPP;
 
         return btrfs_quota_limit(i->path, referenced_max);
 }

src/shared/selinux-util.c

@@ -145,7 +145,7 @@ int mac_selinux_fix(const char *path, bool ignore_enoent, bool ignore_erofs) {
                         r = lsetfilecon(path, fcon);
 
                         /* If the FS doesn't support labels, then exit without warning */
-                        if (r < 0 && errno == ENOTSUP)
+                        if (r < 0 && errno == EOPNOTSUPP)
                                 return 0;
                 }
         }

src/shared/smack-util.c

@@ -187,7 +187,7 @@ int mac_smack_fix(const char *path, bool ignore_enoent, bool ignore_erofs) {
                 r = lsetxattr(path, "security.SMACK64", label, strlen(label), 0);
 
                 /* If the FS doesn't support labels, then exit without warning */
-                if (r < 0 && errno == ENOTSUP)
+                if (r < 0 && errno == EOPNOTSUPP)
                         return 0;
         }
 

src/shared/socket-util.c

@@ -580,7 +580,7 @@ int sockaddr_pretty(const struct sockaddr *_sa, socklen_t salen, bool translate_
                 break;
 
         default:
-                return -ENOTSUP;
+                return -EOPNOTSUPP;
         }
 
 

src/shared/util.c

@@ -6668,7 +6668,7 @@ int getpeersec(int fd, char **ret) {
 
         if (isempty(s)) {
                 free(s);
-                return -ENOTSUP;
+                return -EOPNOTSUPP;
         }
 
         *ret = s;