diff options
Diffstat (limited to 'winsup/utils/getfacl.c')
| -rw-r--r-- | winsup/utils/getfacl.c | 113 |
1 files changed, 98 insertions, 15 deletions
diff --git a/winsup/utils/getfacl.c b/winsup/utils/getfacl.c index a061807..356d539 100644 --- a/winsup/utils/getfacl.c +++ b/winsup/utils/getfacl.c @@ -31,31 +31,93 @@ permstr (mode_t perm) return pbuf; } -#if 0 -char * +const char * username (uid_t uid) { static char ubuf[256]; struct passwd *pw; - if (pw = getpwuid (uid)) + if ((pw = getpwuid (uid))) strcpy (ubuf, pw->pw_name); else - strcpy (ubuf, "<unknown>"); + sprintf (ubuf, "%d <unknown>", uid); + return ubuf; } -char * +const char * groupname (gid_t gid) { static char gbuf[256]; struct group *gr; - if (gr = getgruid (gid)) + if ((gr = getgrgid (gid))) strcpy (gbuf, gr->gr_name); else - strcpy (gbuf, "<unknown>"); + sprintf (gbuf, "%d <unknown>", gid); + return gbuf; } -#endif + +#define pn(txt) fprintf (fp, txt "\n", name) +#define p(txt) fprintf (fp, txt "\n") + +int +usage (const char *name, int help) +{ + FILE *fp = help ? stdout : stderr; + + pn ("usage: %s [-adn] file..."); + if (!help) + pn ("Try `%s --help' for more information."); + else + { + p (""); + p ("Display file and directory access control lists (ACLs)."); + p (""); + p ("For each argument that is a regular file, special file or"); + p ("directory, getfacl displays the owner, the group, and the ACL."); + p ("For directories getfacl displays additionally the default ACL."); + p (""); + p ("With no options specified, getfacl displays the filename, the"); + p ("owner, the group, and both the ACL and the default ACL, if it"); + p ("exists."); + p (""); + p ("The following options are supported:"); + p (""); + p ("-a Display the filename, the owner, the group, and the ACL"); + p (" of the file."); + p (""); + p ("-d Display the filename, the owner, the group, and the default"); + p (" ACL of the directory, if it exists."); + p (""); + p ("-n Display user and group IDs instead of names."); + p (""); + p ("The format for ACL output is as follows:"); + p (" # file: filename"); + p (" # owner: name or uid"); + p (" # group: name or uid"); + p (" user::perm"); + p (" user:name or uid:perm"); + p (" group::perm"); + p (" group:name or gid:perm"); + p (" mask:perm"); + p (" other:perm"); + p (" default:user::perm"); + p (" default:user:name or uid:perm"); + p (" default:group::perm"); + p (" default:group:name or gid:perm"); + p (" default:mask:perm"); + p (" default:other:perm"); + p (""); + p ("When multiple files are specified on the command line, a blank"); + p ("line separates the ACLs for each file."); + } + return 1; +} + +struct option longopts[] = { + {"help", no_argument, NULL, 'h'}, + {0, no_argument, NULL, 0} +}; int main (int argc, char **argv) @@ -64,11 +126,12 @@ main (int argc, char **argv) int c, i; int aopt = 0; int dopt = 0; + int nopt = 0; int first = 1; struct stat st; aclent_t acls[MAX_ACL_ENTRIES]; - while ((c = getopt (argc, argv, "ad")) != EOF) + while ((c = getopt_long (argc, argv, "adn", longopts, NULL)) != EOF) switch (c) { case 'a': @@ -77,10 +140,16 @@ main (int argc, char **argv) case 'd': dopt = 1; break; + case 'n': + nopt = 1; + break; + case 'h': + return usage (argv[0], 1); default: - fprintf (stderr, "usage: %s [-ad] file...\n", argv[0]); - return 1; + return usage (argv[0], 0); } + if (optind > argc - 1) + return usage (argv[0], 0); while ((c = optind++) < argc) { if (stat (argv[c], &st)) @@ -92,8 +161,16 @@ main (int argc, char **argv) putchar ('\n'); first = 0; printf ("# file: %s\n", argv[c]); - printf ("# owner: %d\n", st.st_uid); - printf ("# group: %d\n", st.st_gid); + if (nopt) + { + printf ("# owner: %d\n", st.st_uid); + printf ("# group: %d\n", st.st_gid); + } + else + { + printf ("# owner: %s\n", username (st.st_uid)); + printf ("# group: %s\n", groupname (st.st_gid)); + } if ((c = acl (argv[c], GETACL, MAX_ACL_ENTRIES, acls)) < 0) { perror (argv[0]); @@ -115,13 +192,19 @@ main (int argc, char **argv) printf ("user::"); break; case USER: - printf ("user:%d:", acls[i].a_id); + if (nopt) + printf ("user:%d:", acls[i].a_id); + else + printf ("user:%s:", username (acls[i].a_id)); break; case GROUP_OBJ: printf ("group::"); break; case GROUP: - printf ("group:%d:", acls[i].a_id); + if (nopt) + printf ("group:%d:", acls[i].a_id); + else + printf ("group:%s:", groupname (acls[i].a_id)); break; case CLASS_OBJ: printf ("mask::"); |