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Convert getfacl to the ACL editing library functions. getfacl should

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now compile/work on any POSIX.1e-compliant implementation (also tested
against the current Linux patches).

Review by:	rwatson
Obtained from:	TrustedBSD Project
This commit is contained in:
jedgar 2001-04-13 19:24:28 +00:00
parent 430f24915d
commit 9fca9e8cc8
1 changed files with 69 additions and 21 deletions
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90
bin/getfacl/getfacl.c
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@ -37,6 +37,7 @@
#include <err.h> #include <err.h>
#include <errno.h> #include <errno.h>
#include <stdio.h> #include <stdio.h>
#include <stdlib.h>
#include <unistd.h> #include <unistd.h>
int more_than_one = 0; int more_than_one = 0;
@ -48,46 +49,93 @@ usage(void)
fprintf(stderr, "getfacl [-d] [files ...]\n"); fprintf(stderr, "getfacl [-d] [files ...]\n");
} }
/*
* return an ACL corresponding to the permissions
* contained in struct stat
*/
static acl_t static acl_t
acl_from_stat(struct stat sb) acl_from_stat(struct stat sb)
{ {
acl_t acl; acl_t acl;
acl_entry_t entry;
acl_permset_t perms;
/* create the ACL */
acl = acl_init(3); acl = acl_init(3);
if (!acl) if (!acl)
return(NULL); return NULL;
acl->acl_entry[0].ae_tag = ACL_USER_OBJ; /* First entry: ACL_USER_OBJ */
acl->acl_entry[0].ae_id = sb.st_uid; if (acl_create_entry(&acl, &entry) == -1)
acl->acl_entry[0].ae_perm = 0; return NULL;
if (acl_set_tag_type(entry, ACL_USER_OBJ) == -1)
return NULL;
if (acl_get_permset(entry, &perms) == -1)
return NULL;
if (acl_clear_perms(perms) == -1)
return NULL;
/* calculate user mode */
if (sb.st_mode & S_IRUSR) if (sb.st_mode & S_IRUSR)
acl->acl_entry[0].ae_perm |= ACL_READ; if (acl_add_perm(perms, ACL_READ) == -1)
return NULL;
if (sb.st_mode & S_IWUSR) if (sb.st_mode & S_IWUSR)
acl->acl_entry[0].ae_perm |= ACL_WRITE; if (acl_add_perm(perms, ACL_WRITE) == -1)
return NULL;
if (sb.st_mode & S_IXUSR) if (sb.st_mode & S_IXUSR)
acl->acl_entry[0].ae_perm |= ACL_EXECUTE; if (acl_add_perm(perms, ACL_EXECUTE) == -1)
return NULL;
if (acl_set_permset(entry, perms) == -1)
return NULL;
acl->acl_entry[1].ae_tag = ACL_GROUP_OBJ; /* Second entry: ACL_GROUP_OBJ */
acl->acl_entry[1].ae_id = sb.st_gid; if (acl_create_entry(&acl, &entry) == -1)
acl->acl_entry[1].ae_perm = 0; return NULL;
if (acl_set_tag_type(entry, ACL_GROUP_OBJ) == -1)
return NULL;
if (acl_get_permset(entry, &perms) == -1)
return NULL;
if (acl_clear_perms(perms) == -1)
return NULL;
/* calculate group mode */
if (sb.st_mode & S_IRGRP) if (sb.st_mode & S_IRGRP)
acl->acl_entry[1].ae_perm |= ACL_READ; if (acl_add_perm(perms, ACL_READ) == -1)
return NULL;
if (sb.st_mode & S_IWGRP) if (sb.st_mode & S_IWGRP)
acl->acl_entry[1].ae_perm |= ACL_WRITE; if (acl_add_perm(perms, ACL_WRITE) == -1)
return NULL;
if (sb.st_mode & S_IXGRP) if (sb.st_mode & S_IXGRP)
acl->acl_entry[1].ae_perm |= ACL_EXECUTE; if (acl_add_perm(perms, ACL_EXECUTE) == -1)
return NULL;
if (acl_set_permset(entry, perms) == -1)
return NULL;
acl->acl_entry[2].ae_tag = ACL_OTHER_OBJ; /* Third entry: ACL_OTHER */
acl->acl_entry[2].ae_id = 0; if (acl_create_entry(&acl, &entry) == -1)
acl->acl_entry[2].ae_perm = 0; return NULL;
if (acl_set_tag_type(entry, ACL_OTHER) == -1)
return NULL;
if (acl_get_permset(entry, &perms) == -1)
return NULL;
if (acl_clear_perms(perms) == -1)
return NULL;
/* calculate other mode */
if (sb.st_mode & S_IROTH) if (sb.st_mode & S_IROTH)
acl->acl_entry[2].ae_perm |= ACL_READ; if (acl_add_perm(perms, ACL_READ) == -1)
return NULL;
if (sb.st_mode & S_IWOTH) if (sb.st_mode & S_IWOTH)
acl->acl_entry[2].ae_perm |= ACL_WRITE; if (acl_add_perm(perms, ACL_WRITE) == -1)
return NULL;
if (sb.st_mode & S_IXOTH) if (sb.st_mode & S_IXOTH)
acl->acl_entry[2].ae_perm |= ACL_EXECUTE; if (acl_add_perm(perms, ACL_EXECUTE) == -1)
return NULL;
acl->acl_cnt = 3; if (acl_set_permset(entry, perms) == -1)
return NULL;
return(acl); return(acl);
} }