diff options
Diffstat (limited to 'winsup/utils/setfacl.c')
-rw-r--r-- | winsup/utils/setfacl.c | 495 |
1 files changed, 0 insertions, 495 deletions
diff --git a/winsup/utils/setfacl.c b/winsup/utils/setfacl.c deleted file mode 100644 index 04daba7e8..000000000 --- a/winsup/utils/setfacl.c +++ /dev/null @@ -1,495 +0,0 @@ -/* setfacl.c - - Copyright 2000, 2001 Red Hat Inc. - - Written by Corinna Vinschen <vinschen@redhat.com> - -This file is part of Cygwin. - -This software is a copyrighted work licensed under the terms of the -Cygwin license. Please consult the file "CYGWIN_LICENSE" for -details. */ - -#include <stdio.h> -#include <ctype.h> -#include <string.h> -#include <stdlib.h> -#include <unistd.h> -#include <getopt.h> -#include <pwd.h> -#include <grp.h> -#include <sys/types.h> -#include <sys/acl.h> - -#ifndef BOOL -#define BOOL int -#endif - -#ifndef TRUE -#define TRUE (1) -#endif - -#ifndef FALSE -#define FALSE (0) -#endif - -#ifndef ILLEGAL_MODE -#define ILLEGAL_MODE ((mode_t)0xffffffff) -#endif - -typedef enum { - NoAction, - Set, - Modify, - Delete, - ModNDel, - SetFromFile -} action_t; - -char *myname; - -mode_t getperm (char *in) -{ - if (isdigit (*in) && !in[1]) - { - int i = atoi (in); - if (i < 0 || i > 7) - return ILLEGAL_MODE; - return i << 6 | i << 3 | i; - } - if (strlen (in) > 3 && strchr (" \t\n\r#", in[3])) - in[3] = '\0'; - if (strlen (in) != 3) - return ILLEGAL_MODE; - if (!strchr ("r-", in[0]) - || !strchr ("w-", in[1]) - || !strchr ("x-", in[2])) - return ILLEGAL_MODE; - return (in[0] == 'r' ? S_IRUSR | S_IRGRP | S_IROTH : 0) - | (in[1] == 'w' ? S_IWUSR | S_IWGRP | S_IWOTH : 0) - | (in[2] == 'x' ? S_IXUSR | S_IXGRP | S_IXOTH : 0); -} - -BOOL -getaclentry (action_t action, char *c, aclent_t *ace) -{ - char *c2; - - ace->a_type = 0; - ace->a_id = 0; - ace->a_perm = 0; - - if (!strncmp (c, "default:", 8) - || !strncmp (c, "d:", 2)) - { - ace->a_type = ACL_DEFAULT; - c = strchr (c, ':') + 1; - } - if (!strncmp (c, "user:", 5) - || !strncmp (c, "u:", 2)) - { - ace->a_type |= USER_OBJ; - c = strchr (c, ':') + 1; - } - else if (!strncmp (c, "group:", 6) - || !strncmp (c, "g:", 2)) - { - ace->a_type |= GROUP_OBJ; - c = strchr (c, ':') + 1; - } - else if (!strncmp (c, "mask:", 5) - || !strncmp (c, "m:", 2)) - { - ace->a_type |= CLASS_OBJ; - c = strchr (c, ':') + 1; - } - else if (!strncmp (c, "other:", 6) - || !strncmp (c, "o:", 2)) - { - ace->a_type |= OTHER_OBJ; - c = strchr (c, ':') + 1; - } - else - return FALSE; - if (ace->a_type & (USER_OBJ | GROUP_OBJ)) - { - if ((c2 = strchr (c, ':'))) - { - if (action == Delete) - return FALSE; - *c2 = '\0'; - } - else if (action != Delete) - return FALSE; - if (c2 == c) - { - if (action == Delete) - return FALSE; - } - else if (isdigit (*c)) - { - char *c3; - - ace->a_id = strtol (c, &c3, 10); - if (*c3) - return FALSE; - } - else if (ace->a_type & USER_OBJ) - { - struct passwd *pw = getpwnam (c); - if (!pw) - return FALSE; - ace->a_id = pw->pw_uid; - } - else - { - struct group *gr = getgrnam (c); - if (!gr) - return FALSE; - ace->a_id = gr->gr_gid; - } - if (c2 != c) - { - if (ace->a_type & USER_OBJ) - { - ace->a_type &= ~USER_OBJ; - ace->a_type |= USER; - } - else - { - ace->a_type &= ~GROUP_OBJ; - ace->a_type |= GROUP; - } - } - if (c2) - c = c2 + 1; - } - else if (*c++ != ':') - return FALSE; - if (action == Delete) - { - if ((ace->a_type & (CLASS_OBJ | OTHER_OBJ)) - && *c) - return FALSE; - ace->a_perm = ILLEGAL_MODE; - return TRUE; - } - if ((ace->a_perm = getperm (c)) == ILLEGAL_MODE) - return FALSE; - return TRUE; -} - -BOOL -getaclentries (action_t action, char *buf, aclent_t *acls, int *idx) -{ - char *c; - - if (action == SetFromFile) - { - FILE *fp; - char fbuf[256], *fb; - - if (!strcmp (buf, "-")) - fp = stdin; - else if (! (fp = fopen (buf, "r"))) - return FALSE; - while ((fb = fgets (fbuf, 256, fp))) - { - while (strchr (" \t", *fb)) - ++fb; - if (strchr ("\n\r#", *fb)) - continue; - if (!getaclentry (action, fb, acls + (*idx)++)) - { - fclose (fp); - return FALSE; - } - } - if (fp != stdin) - fclose (fp); - } - else - for (c = strtok (buf, ","); c; c = strtok (NULL, ",")) - if (!getaclentry (action, c, acls + (*idx)++)) - return FALSE; - return TRUE; -} - -int -searchace (aclent_t *aclp, int nentries, int type, int id) -{ - int i; - - for (i = 0; i < nentries; ++i) - if ((aclp[i].a_type == type && (id < 0 || aclp[i].a_id == id)) - || !aclp[i].a_type) - return i; - return -1; -} - -int -modacl (aclent_t *tgt, int tcnt, aclent_t *src, int scnt) -{ - int t, s, i; - - for (s = 0; s < scnt; ++s) - { - t = searchace (tgt, MAX_ACL_ENTRIES, src[s].a_type, - (src[s].a_type & (USER | GROUP)) ? src[s].a_id : -1); - if (t < 0) - return -1; - if (src[s].a_perm == ILLEGAL_MODE) - { - if (t < tcnt) - { - for (i = t + 1; i < tcnt; ++i) - tgt[i - 1] = tgt[i]; - --tcnt; - } - } - else - { - tgt[t] = src[s]; - if (t >= tcnt) - ++tcnt; - } - } - return tcnt; -} - -void -setfacl (action_t action, char *path, aclent_t *acls, int cnt) -{ - aclent_t lacl[MAX_ACL_ENTRIES]; - int lcnt; - - memset (lacl, 0, sizeof lacl); - if (action == Set) - { - if (acl (path, SETACL, cnt, acls)) - perror (myname); - return; - } - if ((lcnt = acl (path, GETACL, MAX_ACL_ENTRIES, lacl)) < 0 - || (lcnt = modacl (lacl, lcnt, acls, cnt)) < 0 - || (lcnt = acl (path, SETACL, lcnt, lacl)) < 0) - perror (myname); -} - -#define pn(txt) fprintf (fp, txt "\n", myname) -#define p(txt) fprintf (fp, txt "\n") - -int -usage (int help) -{ - FILE *fp = help ? stdout : stderr; - - pn ("usage: %s [-r] -s acl_entries file..."); - pn (" %s [-r] -md acl_entries file..."); - pn (" %s [-r] -f acl_file file..."); - if (!help) - pn ("Try `%s --help' for more information."); - else - { - p (""); - p ("Modify file and directory access control lists (ACLs)"); - p (""); - pn ("For each file given as parameter, %s will either replace its"); - p ("complete ACL (-s, -f)), or it will add, modify, or delete ACL"); - p ("entries."); - p (""); - p ("The following options are supported:"); - p (""); - p ("-s Substitute the ACL of the file by the entries specified on"); - p (" the command line. Required entries are"); - p (" - One user entry for the owner of the file."); - p (" - One group entry for the group of the file."); - p (" - One other entry."); - p (" If additional user and group entries are given:"); - p (" - A mask entry for the file group class of the file."); - p (" - No duplicate user or group entries with the same uid/gid."); - p (" If it is a directory:"); - p (" - One default user entry for the owner of the file."); - p (" - One default group entry for the group of the file."); - p (" - One default mask entry for the file group class of the file."); - p (" - One default other entry."); - p (""); - p (" Acl_entries are one or more comma-separated ACL entries from"); - p (" the following list:"); - p (""); - p (" u[ser]::perm"); - p (" u[ser]:uid:perm"); - p (" g[roup]::perm"); - p (" g[roup]:gid:perm"); - p (" m[ask]::perm"); - p (" o[ther]::perm"); - p (""); - p (" Default entries are like the above with the trailing default"); - p (" identifier. E.g."); - p (""); - p (" d[efault]:u[ser]:uid:perm"); - p (""); - p (" `perm' is either a 3-char permissions string in the form"); - p (" \"rwx\" with the character - for not setting a permission"); - p (" or it is the octal representation of the permissions, a"); - p (" value from 0 (equivalent to \"---\") to 7 (\"rwx\")."); - p (" `uid' is a user name or a numerical uid."); - p (" `gid' is a group name or a numerical gid."); - p (""); - p ("-f Like -s but take the ACL entries from `acl_file'. Acl_entries"); - p (" are given one per line. Whitespace characters are ignored,"); - p (" the character \"#\" may be used to start a comment. The"); - p (" special filename \"-\" indicates reading from stdin."); - p (""); - p ("-m Add or modify one or more specified ACL entries. Acl_entries"); - p (" is a comma-separated list of entries from the same list as"); - p (" above."); - p (""); - p ("-d Delete one or more specified entries from the file's ACL."); - p (" The owner, group and others entries must not be deleted"); - p (" Acl_entries are one or more comma-separated ACL entries"); - p (" without permissions, taken from the following list:"); - p (""); - p (" u[ser]:uid"); - p (" g[roup]:gid"); - p (" d[efault]:u[ser]:uid"); - p (" d[efault]:g[roup]:gid"); - p (" d[efault]:m[ask]:"); - p (" d[efault]:o[ther]:"); - p (""); - p ("-r Causes the permissions specified in the mask entry to be"); - p (" ignored and replaced by the maximum permissions needed for"); - p (" the file group class."); - p (""); - p ("While the -m and -d options may be used in the same command, the"); - p ("-s and -f options may be used only exclusively."); - p (""); - p ("Directories may contain default ACL entries. Files created"); - p ("in a directory that contains default ACL entries will have"); - p ("permissions according to the combination of the current umask,"); - p ("the explicit permissions requested and the default ACL entries"); - p ("Note: Under Cygwin, the default ACL entries are not taken into"); - p ("account currently."); - } - return 1; -} - -struct option longopts[] = { - {"help", no_argument, NULL, 'h'}, - {0, no_argument, NULL, 0} -}; - -int -main (int argc, char **argv) -{ - extern char *optarg; - extern int optind; - int c; - action_t action = NoAction; - int ropt = 0; - aclent_t acls[MAX_ACL_ENTRIES]; - int aclidx = 0; - - myname = argv[0]; - memset (acls, 0, sizeof acls); - while ((c = getopt_long (argc, argv, "d:f:m:rs:", longopts, NULL)) != EOF) - switch (c) - { - case 'd': - if (action == NoAction) - action = Delete; - else if (action == Modify) - action = ModNDel; - else - return usage (0); - if (! getaclentries (Delete, optarg, acls, &aclidx)) - { - fprintf (stderr, "%s: illegal acl entries\n", myname); - return 2; - } - break; - case 'f': - if (action == NoAction) - action = Set; - else - return usage (0); - if (! getaclentries (SetFromFile, optarg, acls, &aclidx)) - { - fprintf (stderr, "%s: illegal acl entries\n", myname); - return 2; - } - break; - case 'm': - if (action == NoAction) - action = Modify; - else if (action == Delete) - action = ModNDel; - else - return usage (0); - if (! getaclentries (Modify, optarg, acls, &aclidx)) - { - fprintf (stderr, "%s: illegal acl entries\n", myname); - return 2; - } - break; - case 'r': - if (!ropt) - ropt = 1; - else - return usage (0); - break; - case 's': - if (action == NoAction) - action = Set; - else - return usage (0); - break; - if (! getaclentries (Set, optarg, acls, &aclidx)) - { - fprintf (stderr, "%s: illegal acl entries\n", myname); - return 2; - } - break; - case 'h': - return usage (1); - default: - return usage (0); - } - if (action == NoAction) - return usage (0); - if (optind > argc - 1) - return usage (0); - if (action == Set) - switch (aclcheck (acls, aclidx, NULL)) - { - case GRP_ERROR: - fprintf (stderr, "%s: more than one group entry.\n", myname); - return 2; - case USER_ERROR: - fprintf (stderr, "%s: more than one user entry.\n", myname); - return 2; - case CLASS_ERROR: - fprintf (stderr, "%s: more than one mask entry.\n", myname); - return 2; - case OTHER_ERROR: - fprintf (stderr, "%s: more than one other entry.\n", myname); - return 2; - case DUPLICATE_ERROR: - fprintf (stderr, "%s: duplicate additional user or group.\n", myname); - return 2; - case ENTRY_ERROR: - fprintf (stderr, "%s: invalid entry type.\n", myname); - return 2; - case MISS_ERROR: - fprintf (stderr, "%s: missing entries.\n", myname); - return 2; - case MEM_ERROR: - fprintf (stderr, "%s: out of memory.\n", myname); - return 2; - default: - break; - } - for (c = optind; c < argc; ++c) - setfacl (action, argv[c], acls, aclidx); - return 0; -} |