server: Lookup user only once.
[paraslash.git] / attribute.c
index 42fa421cbbfff275afb9a6d1691911483159bbe7..867e24b9ee705561a18ee5460a2a4f92438c56a2 100644 (file)
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 1997-2011 Andre Noll <maan@systemlinux.org>
+ * Copyright (C) 1997-2013 Andre Noll <maan@systemlinux.org>
  *
  * Licensed under the GPL v2. For licencing details see COPYING.
  */
@@ -16,6 +16,8 @@
 #include "afh.h"
 #include "afs.h"
 #include "ipc.h"
+#include "sideband.h"
+#include "command.h"
 
 static struct osl_table *attribute_table;
 static int greatest_att_bitnum;
@@ -149,9 +151,12 @@ static void com_lsatt_callback(int fd, const struct osl_object *query)
        struct lsatt_action_data laad = {
                .flags = *(unsigned *) query->data,
                .pb = {
-                       .max_size = SHMMAX,
-                       .private_data = &fd,
-                       .max_size_handler = pass_buffer_as_shm
+                       .max_size = shm_get_shmmax(),
+                       .private_data = &(struct afs_max_size_handler_data) {
+                               .fd = fd,
+                               .band = SBD_OUTPUT
+                       },
+                       .max_size_handler = afs_max_size_handler
                }
 
        };
@@ -171,18 +176,18 @@ static void com_lsatt_callback(int fd, const struct osl_object *query)
                pmd.pm_flags |= PM_REVERSE_LOOP;
        for_each_matching_row(&pmd);
        if (laad.pb.offset)
-               pass_buffer_as_shm(laad.pb.buf, laad.pb.offset, &fd);
+               pass_buffer_as_shm(fd, SBD_OUTPUT, laad.pb.buf, laad.pb.offset);
        free(laad.pb.buf);
 }
 
-int com_lsatt(struct stream_cipher_context *scc, int argc, char * const * const argv)
+int com_lsatt(struct command_context *cc)
 {
        unsigned flags = 0;
        struct osl_object options = {.data = &flags, .size = sizeof(flags)};
        int ret, i;
 
-       for (i = 1; i < argc; i++) {
-               const char *arg = argv[i];
+       for (i = 1; i < cc->argc; i++) {
+               const char *arg = cc->argv[i];
                if (arg[0] != '-')
                        break;
                if (!strcmp(arg, "--")) {
@@ -202,86 +207,13 @@ int com_lsatt(struct stream_cipher_context *scc, int argc, char * const * const
                        continue;
                }
        }
-       ret = send_option_arg_callback_request(&options, argc - i, argv + i,
-               com_lsatt_callback, sc_send_result, scc);
-       if (!ret) {
-               if (argc > 1)
-                       ret = sc_send_va_buffer(scc, "no matches\n");
-       } else if (ret < 0)
-               sc_send_va_buffer(scc, "%s\n", para_strerror(-ret));
-       return ret;
-}
-
-static void com_setatt_callback(__a_unused int fd, const struct osl_object *query)
-{
-       char *p;
-       uint64_t add_mask = 0, del_mask = 0;
-       int ret;
-       size_t len;
-       struct osl_object obj;
-       struct osl_row *row;
-
-       for (p = query->data; p < (char *)query->data + query->size; p += len + 1) {
-               char c;
-
-               len = strlen(p);
-               ret = -E_ATTR_SYNTAX;
-               if (!*p)
-                       goto out;
-               c = p[len - 1];
-               if (c != '+' && c != '-')
-                       break;
-               p[len - 1] = '\0';
-               obj.data = p;
-               obj.size = len + 1;
-               ret = osl(osl_get_row(attribute_table, ATTCOL_NAME, &obj, &row));
-               if (ret < 0)
-                       goto out;
-               ret = osl(osl_get_object(attribute_table, row, ATTCOL_BITNUM,
-                       &obj));
-               if (ret < 0)
-                       goto out;
-               if (c == '+')
-                       add_mask |= (1UL << *(unsigned char *)obj.data);
-               else
-                       del_mask |= (1UL << *(unsigned char *)obj.data);
-       }
-       ret = -E_ATTR_SYNTAX;
-       if (!add_mask && !del_mask)
-               goto out;
-       PARA_DEBUG_LOG("masks: %llx:%llx\n",(long long unsigned)add_mask,
-               (long long unsigned)del_mask);
-       for (; p < (char *)query->data + query->size; p += len + 1) { /* TODO: fnmatch */
-               struct afs_info old_afsi, new_afsi;
-               struct afsi_change_event_data aced = {.old_afsi = &old_afsi};
-
-               len = strlen(p);
-               ret = aft_get_row_of_path(p, &aced.aft_row);
-               if (ret < 0)
-                       goto out;
-               ret = get_afsi_object_of_row(aced.aft_row, &obj);
-               if (ret < 0)
-                       goto out;
-               ret = load_afsi(&old_afsi, &obj);
-               if (ret < 0)
-                       goto out;
-               new_afsi = old_afsi;
-               new_afsi.attributes |= add_mask;
-               new_afsi.attributes &= ~del_mask;
-               save_afsi(&new_afsi, &obj); /* in-place update */
-               afs_event(AFSI_CHANGE, NULL, &aced);
-       }
-out:
+       ret = send_option_arg_callback_request(&options, cc->argc - i, cc->argv + i,
+               com_lsatt_callback, afs_cb_result_handler, cc);
        if (ret < 0)
-               PARA_NOTICE_LOG("%s\n", para_strerror(-ret));
-}
-
-int com_setatt(__a_unused struct stream_cipher_context *scc, int argc, char * const * const argv)
-{
-       if (argc < 3)
-               return -E_ATTR_SYNTAX;
-       return send_standard_callback_request(argc - 1, argv + 1, com_setatt_callback,
-               NULL, NULL);
+               send_strerror(cc, -ret);
+       else if (ret == 0 && cc->argc > 1)
+               ret = send_sb_va(&cc->scc, SBD_ERROR_LOG, "no matches\n");
+       return ret;
 }
 
 struct addatt_event_data {
@@ -295,9 +227,12 @@ static void com_addatt_callback(int fd, const struct osl_object *query)
        char *p;
        int ret = 1, ret2 = 0;
        struct para_buffer pb = {
-               .max_size = SHMMAX,
-               .private_data = &fd,
-               .max_size_handler = pass_buffer_as_shm
+               .max_size = shm_get_shmmax(),
+               .private_data = &(struct afs_max_size_handler_data) {
+                       .fd = fd,
+                       .band = SBD_OUTPUT
+               },
+               .max_size_handler = afs_max_size_handler
        };
        size_t len;
 
@@ -353,20 +288,20 @@ out:
        if (ret < 0 && ret2 >= 0)
                para_printf(&pb, "%s: %s\n", p, para_strerror(-ret));
        if (pb.offset)
-               pass_buffer_as_shm(pb.buf, pb.offset, &fd);
+               pass_buffer_as_shm(fd, SBD_OUTPUT, pb.buf, pb.offset);
        free(pb.buf);
 }
 
-int com_addatt(struct stream_cipher_context *scc, int argc, char * const * const argv)
+int com_addatt(struct command_context *cc)
 {
        int ret;
 
-       if (argc < 2)
+       if (cc->argc < 2)
                return -E_ATTR_SYNTAX;
-       ret = send_standard_callback_request(argc - 1, argv + 1, com_addatt_callback,
-               sc_send_result, scc);
+       ret = send_standard_callback_request(cc->argc - 1, cc->argv + 1,
+               com_addatt_callback, afs_cb_result_handler, cc);
        if (ret < 0)
-               sc_send_va_buffer(scc, "%s\n", para_strerror(-ret));
+               send_strerror(cc, -ret);
        return ret;
 }
 
@@ -378,9 +313,12 @@ static void com_mvatt_callback(int fd, const struct osl_object *query)
        struct osl_object obj = {.data = old, .size = size};
        struct osl_row *row;
        struct para_buffer pb = {
-               .max_size = SHMMAX,
-               .private_data = &fd,
-               .max_size_handler = pass_buffer_as_shm
+               .max_size = shm_get_shmmax(),
+               .private_data = &(struct afs_max_size_handler_data) {
+                       .fd = fd,
+                       .band = SBD_OUTPUT
+               },
+               .max_size_handler = afs_max_size_handler,
        };
        int ret;
 
@@ -396,20 +334,20 @@ out:
        else
                afs_event(ATTRIBUTE_RENAME, &pb, NULL);
        if (pb.offset)
-               pass_buffer_as_shm(pb.buf, pb.offset, &fd);
+               pass_buffer_as_shm(fd, SBD_OUTPUT, pb.buf, pb.offset);
        free(pb.buf);
 }
 
-int com_mvatt(struct stream_cipher_context *scc, int argc, char * const * const argv)
+int com_mvatt(struct command_context *cc)
 {
        int ret;
 
-       if (argc != 3)
+       if (cc->argc != 3)
                return -E_ATTR_SYNTAX;
-       ret = send_standard_callback_request(argc - 1, argv + 1, com_mvatt_callback,
-               sc_send_result, scc);
+       ret = send_standard_callback_request(cc->argc - 1, cc->argv + 1,
+               com_mvatt_callback, afs_cb_result_handler, cc);
        if (ret < 0)
-               sc_send_va_buffer(scc, "%s\n", para_strerror(-ret));
+               send_strerror(cc, -ret);
        return ret;
 }
 
@@ -448,9 +386,12 @@ static void com_rmatt_callback(int fd, const struct osl_object *query)
        struct remove_attribute_action_data raad = {
                .num_removed = 0,
                .pb = {
-                       .max_size = SHMMAX,
-                       .private_data = &fd,
-                       .max_size_handler = pass_buffer_as_shm
+                       .max_size = shm_get_shmmax(),
+                       .private_data = &(struct afs_max_size_handler_data) {
+                               .fd = fd,
+                               .band = SBD_OUTPUT
+                       },
+                       .max_size_handler = afs_max_size_handler,
                }
        };
        int ret, ret2 = 0;
@@ -468,20 +409,20 @@ static void com_rmatt_callback(int fd, const struct osl_object *query)
        else if (!raad.num_removed)
                ret2 = para_printf(&raad.pb, "no match -- nothing removed\n");
        if (ret2 >= 0 && raad.pb.offset)
-               pass_buffer_as_shm(raad.pb.buf, raad.pb.offset, &fd);
+               pass_buffer_as_shm(fd, SBD_OUTPUT, raad.pb.buf, raad.pb.offset);
        free(raad.pb.buf);
 }
 
-int com_rmatt(struct stream_cipher_context *scc, int argc, char * const * const argv)
+int com_rmatt(struct command_context *cc)
 {
        int ret;
 
-       if (argc < 2)
+       if (cc->argc < 2)
                return -E_ATTR_SYNTAX;
-       ret = send_standard_callback_request(argc - 1, argv + 1, com_rmatt_callback,
-               sc_send_result, scc);
+       ret = send_standard_callback_request(cc->argc - 1, cc->argv + 1,
+               com_rmatt_callback, afs_cb_result_handler, cc);
        if (ret < 0)
-               sc_send_va_buffer(scc, "%s\n", para_strerror(-ret));
+               send_strerror(cc, -ret);
        return ret;
 }