| /* set-mode-acl.c - set access control list equivalent to a mode |
| |
| Copyright (C) 2002-2003, 2005-2012 Free Software Foundation, Inc. |
| |
| This program is free software: you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 3 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program. If not, see <http://www.gnu.org/licenses/>. |
| |
| Written by Paul Eggert and Andreas Gruenbacher, and Bruno Haible. */ |
| |
| #include <config.h> |
| |
| #define ACL_INTERNAL_INLINE _GL_EXTERN_INLINE |
| |
| #include "acl.h" |
| |
| #include "acl-internal.h" |
| |
| #include "gettext.h" |
| #define _(msgid) gettext (msgid) |
| |
| |
| /* If DESC is a valid file descriptor use fchmod to change the |
| file's mode to MODE on systems that have fchown. On systems |
| that don't have fchown and if DESC is invalid, use chown on |
| NAME instead. |
| Return 0 if successful. Return -1 and set errno upon failure. */ |
| |
| int |
| chmod_or_fchmod (const char *name, int desc, mode_t mode) |
| { |
| if (HAVE_FCHMOD && desc != -1) |
| return fchmod (desc, mode); |
| else |
| return chmod (name, mode); |
| } |
| |
| /* Set the access control lists of a file. If DESC is a valid file |
| descriptor, use file descriptor operations where available, else use |
| filename based operations on NAME. If access control lists are not |
| available, fchmod the target file to MODE. Also sets the |
| non-permission bits of the destination file (S_ISUID, S_ISGID, S_ISVTX) |
| to those from MODE if any are set. |
| Return 0 if successful. Return -1 and set errno upon failure. */ |
| |
| int |
| qset_acl (char const *name, int desc, mode_t mode) |
| { |
| #if USE_ACL |
| # if HAVE_ACL_GET_FILE |
| /* POSIX 1003.1e draft 17 (abandoned) specific version. */ |
| /* Linux, FreeBSD, Mac OS X, IRIX, Tru64 */ |
| # if !HAVE_ACL_TYPE_EXTENDED |
| /* Linux, FreeBSD, IRIX, Tru64 */ |
| |
| /* We must also have acl_from_text and acl_delete_def_file. |
| (acl_delete_def_file could be emulated with acl_init followed |
| by acl_set_file, but acl_set_file with an empty acl is |
| unspecified.) */ |
| |
| # ifndef HAVE_ACL_FROM_TEXT |
| # error Must have acl_from_text (see POSIX 1003.1e draft 17). |
| # endif |
| # ifndef HAVE_ACL_DELETE_DEF_FILE |
| # error Must have acl_delete_def_file (see POSIX 1003.1e draft 17). |
| # endif |
| |
| acl_t acl; |
| int ret; |
| |
| if (HAVE_ACL_FROM_MODE) /* Linux */ |
| { |
| acl = acl_from_mode (mode); |
| if (!acl) |
| return -1; |
| } |
| else /* FreeBSD, IRIX, Tru64 */ |
| { |
| /* If we were to create the ACL using the functions acl_init(), |
| acl_create_entry(), acl_set_tag_type(), acl_set_qualifier(), |
| acl_get_permset(), acl_clear_perm[s](), acl_add_perm(), we |
| would need to create a qualifier. I don't know how to do this. |
| So create it using acl_from_text(). */ |
| |
| # if HAVE_ACL_FREE_TEXT /* Tru64 */ |
| char acl_text[] = "u::---,g::---,o::---,"; |
| # else /* FreeBSD, IRIX */ |
| char acl_text[] = "u::---,g::---,o::---"; |
| # endif |
| |
| if (mode & S_IRUSR) acl_text[ 3] = 'r'; |
| if (mode & S_IWUSR) acl_text[ 4] = 'w'; |
| if (mode & S_IXUSR) acl_text[ 5] = 'x'; |
| if (mode & S_IRGRP) acl_text[10] = 'r'; |
| if (mode & S_IWGRP) acl_text[11] = 'w'; |
| if (mode & S_IXGRP) acl_text[12] = 'x'; |
| if (mode & S_IROTH) acl_text[17] = 'r'; |
| if (mode & S_IWOTH) acl_text[18] = 'w'; |
| if (mode & S_IXOTH) acl_text[19] = 'x'; |
| |
| acl = acl_from_text (acl_text); |
| if (!acl) |
| return -1; |
| } |
| if (HAVE_ACL_SET_FD && desc != -1) |
| ret = acl_set_fd (desc, acl); |
| else |
| ret = acl_set_file (name, ACL_TYPE_ACCESS, acl); |
| if (ret != 0) |
| { |
| int saved_errno = errno; |
| acl_free (acl); |
| |
| if (ACL_NOT_WELL_SUPPORTED (errno)) |
| return chmod_or_fchmod (name, desc, mode); |
| else |
| { |
| errno = saved_errno; |
| return -1; |
| } |
| } |
| else |
| acl_free (acl); |
| |
| if (S_ISDIR (mode) && acl_delete_def_file (name)) |
| return -1; |
| |
| if (!MODE_INSIDE_ACL || (mode & (S_ISUID | S_ISGID | S_ISVTX))) |
| { |
| /* We did not call chmod so far, and either the mode and the ACL are |
| separate or special bits are to be set which don't fit into ACLs. */ |
| return chmod_or_fchmod (name, desc, mode); |
| } |
| return 0; |
| |
| # else /* HAVE_ACL_TYPE_EXTENDED */ |
| /* Mac OS X */ |
| |
| /* On Mac OS X, acl_get_file (name, ACL_TYPE_ACCESS) |
| and acl_get_file (name, ACL_TYPE_DEFAULT) |
| always return NULL / EINVAL. You have to use |
| acl_get_file (name, ACL_TYPE_EXTENDED) |
| or acl_get_fd (open (name, ...)) |
| to retrieve an ACL. |
| On the other hand, |
| acl_set_file (name, ACL_TYPE_ACCESS, acl) |
| and acl_set_file (name, ACL_TYPE_DEFAULT, acl) |
| have the same effect as |
| acl_set_file (name, ACL_TYPE_EXTENDED, acl): |
| Each of these calls sets the file's ACL. */ |
| |
| acl_t acl; |
| int ret; |
| |
| /* Remove the ACL if the file has ACLs. */ |
| if (HAVE_ACL_GET_FD && desc != -1) |
| acl = acl_get_fd (desc); |
| else |
| acl = acl_get_file (name, ACL_TYPE_EXTENDED); |
| if (acl) |
| { |
| acl_free (acl); |
| |
| acl = acl_init (0); |
| if (acl) |
| { |
| if (HAVE_ACL_SET_FD && desc != -1) |
| ret = acl_set_fd (desc, acl); |
| else |
| ret = acl_set_file (name, ACL_TYPE_EXTENDED, acl); |
| if (ret != 0) |
| { |
| int saved_errno = errno; |
| |
| acl_free (acl); |
| |
| if (ACL_NOT_WELL_SUPPORTED (saved_errno)) |
| return chmod_or_fchmod (name, desc, mode); |
| else |
| { |
| errno = saved_errno; |
| return -1; |
| } |
| } |
| acl_free (acl); |
| } |
| } |
| |
| /* Since !MODE_INSIDE_ACL, we have to call chmod explicitly. */ |
| return chmod_or_fchmod (name, desc, mode); |
| # endif |
| |
| # elif HAVE_FACL && defined GETACL /* Solaris, Cygwin, not HP-UX */ |
| |
| int done_setacl = 0; |
| |
| # ifdef ACE_GETACL |
| /* Solaris also has a different variant of ACLs, used in ZFS and NFSv4 |
| file systems (whereas the other ones are used in UFS file systems). */ |
| |
| /* The flags in the ace_t structure changed in a binary incompatible way |
| when ACL_NO_TRIVIAL etc. were introduced in <sys/acl.h> version 1.15. |
| How to distinguish the two conventions at runtime? |
| We fetch the existing ACL. In the old convention, usually three ACEs have |
| a_flags = ACE_OWNER / ACE_GROUP / ACE_OTHER, in the range 0x0100..0x0400. |
| In the new convention, these values are not used. */ |
| int convention; |
| |
| { |
| /* Initially, try to read the entries into a stack-allocated buffer. |
| Use malloc if it does not fit. */ |
| enum |
| { |
| alloc_init = 4000 / sizeof (ace_t), /* >= 3 */ |
| alloc_max = MIN (INT_MAX, SIZE_MAX / sizeof (ace_t)) |
| }; |
| ace_t buf[alloc_init]; |
| size_t alloc = alloc_init; |
| ace_t *entries = buf; |
| ace_t *malloced = NULL; |
| int count; |
| |
| for (;;) |
| { |
| count = (desc != -1 |
| ? facl (desc, ACE_GETACL, alloc, entries) |
| : acl (name, ACE_GETACL, alloc, entries)); |
| if (count < 0 && errno == ENOSPC) |
| { |
| /* Increase the size of the buffer. */ |
| free (malloced); |
| if (alloc > alloc_max / 2) |
| { |
| errno = ENOMEM; |
| return -1; |
| } |
| alloc = 2 * alloc; /* <= alloc_max */ |
| entries = malloced = (ace_t *) malloc (alloc * sizeof (ace_t)); |
| if (entries == NULL) |
| { |
| errno = ENOMEM; |
| return -1; |
| } |
| continue; |
| } |
| break; |
| } |
| |
| if (count <= 0) |
| convention = -1; |
| else |
| { |
| int i; |
| |
| convention = 0; |
| for (i = 0; i < count; i++) |
| if (entries[i].a_flags & (OLD_ACE_OWNER | OLD_ACE_GROUP | OLD_ACE_OTHER)) |
| { |
| convention = 1; |
| break; |
| } |
| } |
| free (malloced); |
| } |
| |
| if (convention >= 0) |
| { |
| ace_t entries[6]; |
| int count; |
| int ret; |
| |
| if (convention) |
| { |
| /* Running on Solaris 10. */ |
| entries[0].a_type = OLD_ALLOW; |
| entries[0].a_flags = OLD_ACE_OWNER; |
| entries[0].a_who = 0; /* irrelevant */ |
| entries[0].a_access_mask = (mode >> 6) & 7; |
| entries[1].a_type = OLD_ALLOW; |
| entries[1].a_flags = OLD_ACE_GROUP; |
| entries[1].a_who = 0; /* irrelevant */ |
| entries[1].a_access_mask = (mode >> 3) & 7; |
| entries[2].a_type = OLD_ALLOW; |
| entries[2].a_flags = OLD_ACE_OTHER; |
| entries[2].a_who = 0; |
| entries[2].a_access_mask = mode & 7; |
| count = 3; |
| } |
| else |
| { |
| /* Running on Solaris 10 (newer version) or Solaris 11. |
| The details here were found through "/bin/ls -lvd somefiles". */ |
| entries[0].a_type = NEW_ACE_ACCESS_DENIED_ACE_TYPE; |
| entries[0].a_flags = NEW_ACE_OWNER; |
| entries[0].a_who = 0; /* irrelevant */ |
| entries[0].a_access_mask = 0; |
| entries[1].a_type = NEW_ACE_ACCESS_ALLOWED_ACE_TYPE; |
| entries[1].a_flags = NEW_ACE_OWNER; |
| entries[1].a_who = 0; /* irrelevant */ |
| entries[1].a_access_mask = NEW_ACE_WRITE_NAMED_ATTRS |
| | NEW_ACE_WRITE_ATTRIBUTES |
| | NEW_ACE_WRITE_ACL |
| | NEW_ACE_WRITE_OWNER; |
| if (mode & 0400) |
| entries[1].a_access_mask |= NEW_ACE_READ_DATA; |
| else |
| entries[0].a_access_mask |= NEW_ACE_READ_DATA; |
| if (mode & 0200) |
| entries[1].a_access_mask |= NEW_ACE_WRITE_DATA | NEW_ACE_APPEND_DATA; |
| else |
| entries[0].a_access_mask |= NEW_ACE_WRITE_DATA | NEW_ACE_APPEND_DATA; |
| if (mode & 0100) |
| entries[1].a_access_mask |= NEW_ACE_EXECUTE; |
| else |
| entries[0].a_access_mask |= NEW_ACE_EXECUTE; |
| entries[2].a_type = NEW_ACE_ACCESS_DENIED_ACE_TYPE; |
| entries[2].a_flags = NEW_ACE_GROUP | NEW_ACE_IDENTIFIER_GROUP; |
| entries[2].a_who = 0; /* irrelevant */ |
| entries[2].a_access_mask = 0; |
| entries[3].a_type = NEW_ACE_ACCESS_ALLOWED_ACE_TYPE; |
| entries[3].a_flags = NEW_ACE_GROUP | NEW_ACE_IDENTIFIER_GROUP; |
| entries[3].a_who = 0; /* irrelevant */ |
| entries[3].a_access_mask = 0; |
| if (mode & 0040) |
| entries[3].a_access_mask |= NEW_ACE_READ_DATA; |
| else |
| entries[2].a_access_mask |= NEW_ACE_READ_DATA; |
| if (mode & 0020) |
| entries[3].a_access_mask |= NEW_ACE_WRITE_DATA | NEW_ACE_APPEND_DATA; |
| else |
| entries[2].a_access_mask |= NEW_ACE_WRITE_DATA | NEW_ACE_APPEND_DATA; |
| if (mode & 0010) |
| entries[3].a_access_mask |= NEW_ACE_EXECUTE; |
| else |
| entries[2].a_access_mask |= NEW_ACE_EXECUTE; |
| entries[4].a_type = NEW_ACE_ACCESS_DENIED_ACE_TYPE; |
| entries[4].a_flags = NEW_ACE_EVERYONE; |
| entries[4].a_who = 0; |
| entries[4].a_access_mask = NEW_ACE_WRITE_NAMED_ATTRS |
| | NEW_ACE_WRITE_ATTRIBUTES |
| | NEW_ACE_WRITE_ACL |
| | NEW_ACE_WRITE_OWNER; |
| entries[5].a_type = NEW_ACE_ACCESS_ALLOWED_ACE_TYPE; |
| entries[5].a_flags = NEW_ACE_EVERYONE; |
| entries[5].a_who = 0; |
| entries[5].a_access_mask = NEW_ACE_READ_NAMED_ATTRS |
| | NEW_ACE_READ_ATTRIBUTES |
| | NEW_ACE_READ_ACL |
| | NEW_ACE_SYNCHRONIZE; |
| if (mode & 0004) |
| entries[5].a_access_mask |= NEW_ACE_READ_DATA; |
| else |
| entries[4].a_access_mask |= NEW_ACE_READ_DATA; |
| if (mode & 0002) |
| entries[5].a_access_mask |= NEW_ACE_WRITE_DATA | NEW_ACE_APPEND_DATA; |
| else |
| entries[4].a_access_mask |= NEW_ACE_WRITE_DATA | NEW_ACE_APPEND_DATA; |
| if (mode & 0001) |
| entries[5].a_access_mask |= NEW_ACE_EXECUTE; |
| else |
| entries[4].a_access_mask |= NEW_ACE_EXECUTE; |
| count = 6; |
| } |
| if (desc != -1) |
| ret = facl (desc, ACE_SETACL, count, entries); |
| else |
| ret = acl (name, ACE_SETACL, count, entries); |
| if (ret < 0 && errno != EINVAL && errno != ENOTSUP) |
| { |
| if (errno == ENOSYS) |
| return chmod_or_fchmod (name, desc, mode); |
| return -1; |
| } |
| if (ret == 0) |
| done_setacl = 1; |
| } |
| # endif |
| |
| if (!done_setacl) |
| { |
| aclent_t entries[3]; |
| int ret; |
| |
| entries[0].a_type = USER_OBJ; |
| entries[0].a_id = 0; /* irrelevant */ |
| entries[0].a_perm = (mode >> 6) & 7; |
| entries[1].a_type = GROUP_OBJ; |
| entries[1].a_id = 0; /* irrelevant */ |
| entries[1].a_perm = (mode >> 3) & 7; |
| entries[2].a_type = OTHER_OBJ; |
| entries[2].a_id = 0; |
| entries[2].a_perm = mode & 7; |
| |
| if (desc != -1) |
| ret = facl (desc, SETACL, |
| sizeof (entries) / sizeof (aclent_t), entries); |
| else |
| ret = acl (name, SETACL, |
| sizeof (entries) / sizeof (aclent_t), entries); |
| if (ret < 0) |
| { |
| if (errno == ENOSYS || errno == EOPNOTSUPP) |
| return chmod_or_fchmod (name, desc, mode); |
| return -1; |
| } |
| } |
| |
| if (!MODE_INSIDE_ACL || (mode & (S_ISUID | S_ISGID | S_ISVTX))) |
| { |
| /* We did not call chmod so far, so the special bits have not yet |
| been set. */ |
| return chmod_or_fchmod (name, desc, mode); |
| } |
| return 0; |
| |
| # elif HAVE_GETACL /* HP-UX */ |
| |
| struct stat statbuf; |
| int ret; |
| |
| if (desc != -1) |
| ret = fstat (desc, &statbuf); |
| else |
| ret = stat (name, &statbuf); |
| if (ret < 0) |
| return -1; |
| |
| { |
| struct acl_entry entries[3]; |
| |
| entries[0].uid = statbuf.st_uid; |
| entries[0].gid = ACL_NSGROUP; |
| entries[0].mode = (mode >> 6) & 7; |
| entries[1].uid = ACL_NSUSER; |
| entries[1].gid = statbuf.st_gid; |
| entries[1].mode = (mode >> 3) & 7; |
| entries[2].uid = ACL_NSUSER; |
| entries[2].gid = ACL_NSGROUP; |
| entries[2].mode = mode & 7; |
| |
| if (desc != -1) |
| ret = fsetacl (desc, sizeof (entries) / sizeof (struct acl_entry), entries); |
| else |
| ret = setacl (name, sizeof (entries) / sizeof (struct acl_entry), entries); |
| } |
| if (ret < 0) |
| { |
| if (!(errno == ENOSYS || errno == EOPNOTSUPP || errno == ENOTSUP)) |
| return -1; |
| |
| # if HAVE_ACLV_H /* HP-UX >= 11.11 */ |
| { |
| struct acl entries[4]; |
| |
| entries[0].a_type = USER_OBJ; |
| entries[0].a_id = 0; /* irrelevant */ |
| entries[0].a_perm = (mode >> 6) & 7; |
| entries[1].a_type = GROUP_OBJ; |
| entries[1].a_id = 0; /* irrelevant */ |
| entries[1].a_perm = (mode >> 3) & 7; |
| entries[2].a_type = CLASS_OBJ; |
| entries[2].a_id = 0; |
| entries[2].a_perm = (mode >> 3) & 7; |
| entries[3].a_type = OTHER_OBJ; |
| entries[3].a_id = 0; |
| entries[3].a_perm = mode & 7; |
| |
| ret = aclsort (sizeof (entries) / sizeof (struct acl), 1, entries); |
| if (ret > 0) |
| abort (); |
| if (ret < 0) |
| { |
| if (0) |
| return chmod_or_fchmod (name, desc, mode); |
| return -1; |
| } |
| |
| ret = acl ((char *) name, ACL_SET, |
| sizeof (entries) / sizeof (struct acl), entries); |
| if (ret < 0) |
| { |
| if (errno == ENOSYS || errno == EOPNOTSUPP || errno == EINVAL) |
| return chmod_or_fchmod (name, desc, mode); |
| return -1; |
| } |
| } |
| # else |
| return chmod_or_fchmod (name, desc, mode); |
| # endif |
| } |
| |
| if (mode & (S_ISUID | S_ISGID | S_ISVTX)) |
| { |
| /* We did not call chmod so far, so the special bits have not yet |
| been set. */ |
| return chmod_or_fchmod (name, desc, mode); |
| } |
| return 0; |
| |
| # elif HAVE_ACLX_GET && defined ACL_AIX_WIP /* AIX */ |
| |
| acl_type_list_t types; |
| size_t types_size = sizeof (types); |
| acl_type_t type; |
| |
| if (aclx_gettypes (name, &types, &types_size) < 0 |
| || types.num_entries == 0) |
| return chmod_or_fchmod (name, desc, mode); |
| |
| /* XXX Do we need to clear all types of ACLs for the given file, or is it |
| sufficient to clear the first one? */ |
| type = types.entries[0]; |
| if (type.u64 == ACL_AIXC) |
| { |
| union { struct acl a; char room[128]; } u; |
| int ret; |
| |
| u.a.acl_len = (char *) &u.a.acl_ext[0] - (char *) &u.a; /* no entries */ |
| u.a.acl_mode = mode & ~(S_IXACL | 0777); |
| u.a.u_access = (mode >> 6) & 7; |
| u.a.g_access = (mode >> 3) & 7; |
| u.a.o_access = mode & 7; |
| |
| if (desc != -1) |
| ret = aclx_fput (desc, SET_ACL | SET_MODE_S_BITS, |
| type, &u.a, u.a.acl_len, mode); |
| else |
| ret = aclx_put (name, SET_ACL | SET_MODE_S_BITS, |
| type, &u.a, u.a.acl_len, mode); |
| if (!(ret < 0 && errno == ENOSYS)) |
| return ret; |
| } |
| else if (type.u64 == ACL_NFS4) |
| { |
| union { nfs4_acl_int_t a; char room[128]; } u; |
| nfs4_ace_int_t *ace; |
| int ret; |
| |
| u.a.aclVersion = NFS4_ACL_INT_STRUCT_VERSION; |
| u.a.aclEntryN = 0; |
| ace = &u.a.aclEntry[0]; |
| { |
| ace->flags = ACE4_ID_SPECIAL; |
| ace->aceWho.special_whoid = ACE4_WHO_OWNER; |
| ace->aceType = ACE4_ACCESS_ALLOWED_ACE_TYPE; |
| ace->aceFlags = 0; |
| ace->aceMask = |
| (mode & 0400 ? ACE4_READ_DATA | ACE4_LIST_DIRECTORY : 0) |
| | (mode & 0200 |
| ? ACE4_WRITE_DATA | ACE4_ADD_FILE | ACE4_APPEND_DATA |
| | ACE4_ADD_SUBDIRECTORY |
| : 0) |
| | (mode & 0100 ? ACE4_EXECUTE : 0); |
| ace->aceWhoString[0] = '\0'; |
| ace->entryLen = (char *) &ace->aceWhoString[4] - (char *) ace; |
| ace = (nfs4_ace_int_t *) (char *) &ace->aceWhoString[4]; |
| u.a.aclEntryN++; |
| } |
| { |
| ace->flags = ACE4_ID_SPECIAL; |
| ace->aceWho.special_whoid = ACE4_WHO_GROUP; |
| ace->aceType = ACE4_ACCESS_ALLOWED_ACE_TYPE; |
| ace->aceFlags = 0; |
| ace->aceMask = |
| (mode & 0040 ? ACE4_READ_DATA | ACE4_LIST_DIRECTORY : 0) |
| | (mode & 0020 |
| ? ACE4_WRITE_DATA | ACE4_ADD_FILE | ACE4_APPEND_DATA |
| | ACE4_ADD_SUBDIRECTORY |
| : 0) |
| | (mode & 0010 ? ACE4_EXECUTE : 0); |
| ace->aceWhoString[0] = '\0'; |
| ace->entryLen = (char *) &ace->aceWhoString[4] - (char *) ace; |
| ace = (nfs4_ace_int_t *) (char *) &ace->aceWhoString[4]; |
| u.a.aclEntryN++; |
| } |
| { |
| ace->flags = ACE4_ID_SPECIAL; |
| ace->aceWho.special_whoid = ACE4_WHO_EVERYONE; |
| ace->aceType = ACE4_ACCESS_ALLOWED_ACE_TYPE; |
| ace->aceFlags = 0; |
| ace->aceMask = |
| (mode & 0004 ? ACE4_READ_DATA | ACE4_LIST_DIRECTORY : 0) |
| | (mode & 0002 |
| ? ACE4_WRITE_DATA | ACE4_ADD_FILE | ACE4_APPEND_DATA |
| | ACE4_ADD_SUBDIRECTORY |
| : 0) |
| | (mode & 0001 ? ACE4_EXECUTE : 0); |
| ace->aceWhoString[0] = '\0'; |
| ace->entryLen = (char *) &ace->aceWhoString[4] - (char *) ace; |
| ace = (nfs4_ace_int_t *) (char *) &ace->aceWhoString[4]; |
| u.a.aclEntryN++; |
| } |
| u.a.aclLength = (char *) ace - (char *) &u.a; |
| |
| if (desc != -1) |
| ret = aclx_fput (desc, SET_ACL | SET_MODE_S_BITS, |
| type, &u.a, u.a.aclLength, mode); |
| else |
| ret = aclx_put (name, SET_ACL | SET_MODE_S_BITS, |
| type, &u.a, u.a.aclLength, mode); |
| if (!(ret < 0 && errno == ENOSYS)) |
| return ret; |
| } |
| |
| return chmod_or_fchmod (name, desc, mode); |
| |
| # elif HAVE_STATACL /* older AIX */ |
| |
| union { struct acl a; char room[128]; } u; |
| int ret; |
| |
| u.a.acl_len = (char *) &u.a.acl_ext[0] - (char *) &u.a; /* no entries */ |
| u.a.acl_mode = mode & ~(S_IXACL | 0777); |
| u.a.u_access = (mode >> 6) & 7; |
| u.a.g_access = (mode >> 3) & 7; |
| u.a.o_access = mode & 7; |
| |
| if (desc != -1) |
| ret = fchacl (desc, &u.a, u.a.acl_len); |
| else |
| ret = chacl (name, &u.a, u.a.acl_len); |
| |
| if (ret < 0 && errno == ENOSYS) |
| return chmod_or_fchmod (name, desc, mode); |
| |
| return ret; |
| |
| # elif HAVE_ACLSORT /* NonStop Kernel */ |
| |
| struct acl entries[4]; |
| int ret; |
| |
| entries[0].a_type = USER_OBJ; |
| entries[0].a_id = 0; /* irrelevant */ |
| entries[0].a_perm = (mode >> 6) & 7; |
| entries[1].a_type = GROUP_OBJ; |
| entries[1].a_id = 0; /* irrelevant */ |
| entries[1].a_perm = (mode >> 3) & 7; |
| entries[2].a_type = CLASS_OBJ; |
| entries[2].a_id = 0; |
| entries[2].a_perm = (mode >> 3) & 7; |
| entries[3].a_type = OTHER_OBJ; |
| entries[3].a_id = 0; |
| entries[3].a_perm = mode & 7; |
| |
| ret = aclsort (sizeof (entries) / sizeof (struct acl), 1, entries); |
| if (ret > 0) |
| abort (); |
| if (ret < 0) |
| { |
| if (0) |
| return chmod_or_fchmod (name, desc, mode); |
| return -1; |
| } |
| |
| ret = acl ((char *) name, ACL_SET, |
| sizeof (entries) / sizeof (struct acl), entries); |
| if (ret < 0) |
| { |
| if (0) |
| return chmod_or_fchmod (name, desc, mode); |
| return -1; |
| } |
| |
| if (mode & (S_ISUID | S_ISGID | S_ISVTX)) |
| { |
| /* We did not call chmod so far, so the special bits have not yet |
| been set. */ |
| return chmod_or_fchmod (name, desc, mode); |
| } |
| return 0; |
| |
| # else /* Unknown flavor of ACLs */ |
| return chmod_or_fchmod (name, desc, mode); |
| # endif |
| #else /* !USE_ACL */ |
| return chmod_or_fchmod (name, desc, mode); |
| #endif |
| } |
| |
| /* As with qset_acl, but also output a diagnostic on failure. */ |
| |
| int |
| set_acl (char const *name, int desc, mode_t mode) |
| { |
| int ret = qset_acl (name, desc, mode); |
| if (ret != 0) |
| error (0, errno, _("setting permissions for %s"), quote (name)); |
| return ret; |
| } |
