file_cmds-321.100.10.0.1.tar.gz

[apple/file_cmds.git] / chown / chown.c

diff --git a/chown/chown.c b/chown/chown.c
index 44a0f4317b7bef64f5488e67b139c8567db0f7f9..708a6c55b98972f965d74dcc145853017b92bc6e 100644 (file)
--- a/chown/chown.c
+++ b/chown/chown.c
@@ -31,8 +31,9 @@
  * SUCH DAMAGE.
  */
 
+#include <sys/cdefs.h>
 #ifndef lint
-static const char copyright[] =
+__used static const char copyright[] =
 "@(#) Copyright (c) 1988, 1993, 1994\n\
        The Regents of the University of California.  All rights reserved.\n";
 #endif /* not lint */
@@ -58,16 +59,26 @@ __RCSID("$FreeBSD: src/usr.sbin/chown/chown.c,v 1.24 2002/07/17 16:22:24 dwmalon
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
+#include <sys/time.h>
+
+#ifdef __APPLE__
+#include <get_compat.h>
+#else
+#define COMPAT_MODE(a,b) (1)
+#endif /* __APPLE__ */
 
 void   a_gid(const char *);
 void   a_uid(const char *);
 void   chownerr(const char *);
-u_long id(const char *, const char *);
+static uid_t   id(const char *, const char *);
 void   usage(void);
 
 uid_t uid;
 gid_t gid;
 int ischown;
+#ifdef __APPLE__
+int isnumeric = 0;
+#endif
 const char *gname;
 
 int
@@ -75,26 +86,35 @@ main(int argc, char **argv)
 {
        FTS *ftsp;
        FTSENT *p;
-       int Hflag, Lflag, Rflag, fflag, hflag, vflag;
+       int Hflag, Lflag, Pflag, Rflag, fflag, hflag, vflag;
        int ch, fts_options, rval;
        char *cp;
+       int unix2003_compat = 0;
+       int symlink_found = 0;
 
+       if (argc < 1)
+               usage();
        cp = strrchr(argv[0], '/');
        cp = (cp != NULL) ? cp + 1 : argv[0];
        ischown = (strcmp(cp, "chown") == 0);
 
-       Hflag = Lflag = Rflag = fflag = hflag = vflag = 0;
+       Hflag = Lflag = Pflag = Rflag = fflag = hflag = vflag = 0;
+#ifdef __APPLE__
+       while ((ch = getopt(argc, argv, "HLPRfhnv")) != -1)
+#else
        while ((ch = getopt(argc, argv, "HLPRfhv")) != -1)
+#endif
                switch (ch) {
                case 'H':
                        Hflag = 1;
-                       Lflag = 0;
+                       Lflag = Pflag = 0;
                        break;
                case 'L':
                        Lflag = 1;
-                       Hflag = 0;
+                       Hflag = Pflag = 0;
                        break;
                case 'P':
+                       Pflag = 1;
                        Hflag = Lflag = 0;
                        break;
                case 'R':
@@ -106,6 +126,11 @@ main(int argc, char **argv)
                case 'h':
                        hflag = 1;
                        break;
+#ifdef __APPLE__
+               case 'n':
+                       isnumeric = 1;
+                       break;
+#endif
                case 'v':
                        vflag = 1;
                        break;
@@ -118,6 +143,8 @@ main(int argc, char **argv)
 
        if (argc < 2)
                usage();
+       if (!Rflag && (Hflag || Lflag || Pflag))
+               warnx("options -H, -L, -P only useful with -R");
 
        if (Rflag) {
                fts_options = FTS_PHYSICAL;
@@ -136,6 +163,7 @@ main(int argc, char **argv)
        uid = (uid_t)-1;
        gid = (gid_t)-1;
        if (ischown) {
+               unix2003_compat = COMPAT_MODE("bin/chown", "Unix2003");
                if ((cp = strchr(*argv, ':')) != NULL) {
                        *cp++ = '\0';
                        a_gid(cp);
@@ -148,13 +176,16 @@ main(int argc, char **argv)
                }
 #endif
                a_uid(*argv);
-       } else
+       } else {
+               unix2003_compat = COMPAT_MODE("bin/chgrp", "Unix2003");
                a_gid(*argv);
+       }
 
        if ((ftsp = fts_open(++argv, fts_options, 0)) == NULL)
                err(1, NULL);
 
        for (rval = 0; (p = fts_read(ftsp)) != NULL;) {
+               symlink_found = 0;
                switch (p->fts_info) {
                case FTS_D:                     /* Change it at FTS_DP. */
                        if (!Rflag)
@@ -178,15 +209,33 @@ main(int argc, char **argv)
                         */
                        if (hflag)
                                break;
-                       else
+                       else {
+                               symlink_found = 1;
+                               if (unix2003_compat) {
+                                       if (Hflag || Lflag) {       /* -H or -L was specified */
+                                               if (p->fts_errno) {
+                                                       warnx("%s: %s", p->fts_name, strerror(p->fts_errno));
+                                                       rval = 1;
+                                                       continue;
+                                               }
+                                       }
+                                       break; /* Otherwise symlinks keep going */
+                               }
                                continue;
+                       }
                default:
                        break;
                }
-               if ((uid == (uid_t)-1 || uid == p->fts_statp->st_uid) &&
-                   (gid == (gid_t)-1 || gid == p->fts_statp->st_gid))
-                       continue;
-               if ((hflag ? lchown : chown)(p->fts_accpath, uid, gid) == -1) {
+               if (unix2003_compat) {
+                       /* Can only avoid updating times if both uid and gid are -1 */
+                       if ((uid == (uid_t)-1) && (gid == (gid_t)-1))
+                               continue;
+               } else {
+                       if ((uid == (uid_t)-1 || uid == p->fts_statp->st_uid) &&
+                           (gid == (gid_t)-1 || gid == p->fts_statp->st_gid))
+                               continue;
+               }
+               if (((hflag || symlink_found) ? lchown : chown)(p->fts_accpath, uid, gid) == -1) {
                        if (!fflag) {
                                chownerr(p->fts_path);
                                rval = 1;
@@ -209,7 +258,11 @@ a_gid(const char *s)
        if (*s == '\0')                 /* Argument was "uid[:.]". */
                return;
        gname = s;
+#ifdef __APPLE__
+       gid = (!isnumeric && ((gr = getgrnam(s)) != NULL)) ? gr->gr_gid : id(s, "group");
+#else
        gid = ((gr = getgrnam(s)) != NULL) ? gr->gr_gid : id(s, "group");
+#endif
 }
 
 void
@@ -219,26 +272,24 @@ a_uid(const char *s)
 
        if (*s == '\0')                 /* Argument was "[:.]gid". */
                return;
+#ifdef __APPLE__
+       uid = (!isnumeric && ((pw = getpwnam(s)) != NULL)) ? pw->pw_uid : id(s, "user");
+#else
        uid = ((pw = getpwnam(s)) != NULL) ? pw->pw_uid : id(s, "user");
+#endif
 }
 
-u_long
+static uid_t
 id(const char *name, const char *type)
 {
-       u_long val;
+       unsigned long val;
        char *ep;
 
-       /*
-        * XXX
-        * We know that uid_t's and gid_t's are unsigned longs.
-        */
        errno = 0;
        val = strtoul(name, &ep, 10);
-       if (errno)
-               err(1, "%s", name);
-       if (*ep != '\0')
+       if (errno || *ep != '\0' || val > UID_MAX)
                errx(1, "%s: illegal %s name", name, type);
-       return (val);
+       return (uid_t)val;
 }
 
 void
@@ -274,11 +325,21 @@ usage(void)
 
        if (ischown)
                (void)fprintf(stderr, "%s\n%s\n",
+#ifdef __APPLE__
+                   "usage: chown [-fhnv] [-R [-H | -L | -P]] owner[:group]"
+                   " file ...",
+                   "       chown [-fhnv] [-R [-H | -L | -P]] :group file ...");
+#else
                    "usage: chown [-fhv] [-R [-H | -L | -P]] owner[:group]"
                    " file ...",
                    "       chown [-fhv] [-R [-H | -L | -P]] :group file ...");
+#endif
        else
                (void)fprintf(stderr, "%s\n",
+#ifdef __APPLE__
+                   "usage: chgrp [-fhnv] [-R [-H | -L | -P]] group file ...");
+#else
                    "usage: chgrp [-fhv] [-R [-H | -L | -P]] group file ...");
+#endif
        exit(1);
 }