]> git.cameronkatri.com Git - pw-darwin.git/blobdiff - pw/pw.c
Cast uid/git to uintmax_t when using printf-like functions so the size of
[pw-darwin.git] / pw / pw.c
diff --git a/pw/pw.c b/pw/pw.c
index c17775f89a2dafd870fa17395aade5931822c4bb..88c83dbfa125a5cdda983d620d2a555ab774c6c0 100644 (file)
--- a/pw/pw.c
+++ b/pw/pw.c
@@ -31,7 +31,9 @@ static const char rcsid[] =
 
 #include <err.h>
 #include <fcntl.h>
+#include <locale.h>
 #include <paths.h>
+#include <stdbool.h>
 #include <sys/wait.h>
 #include "pw.h"
 
@@ -55,38 +57,36 @@ static const char *Combo2[] = {
 
 struct pwf PWF =
 {
-       0,
+       PWF_REGULAR,
        setpwent,
        endpwent,
        getpwent,
        getpwuid,
        getpwnam,
-       pwdb,
        setgrent,
        endgrent,
        getgrent,
        getgrgid,
        getgrnam,
-       grdb
 
 };
 struct pwf VPWF =
 {
-       1,
+       PWF_ALT,
        vsetpwent,
        vendpwent,
        vgetpwent,
        vgetpwuid,
        vgetpwnam,
-       vpwdb,
        vsetgrent,
        vendgrent,
        vgetgrent,
        vgetgrgid,
        vgetgrnam,
-       vgrdb
 };
 
+struct pwconf conf;
+
 static struct cargs arglist;
 
 static int      getindex(const char *words[], const char *word);
@@ -99,38 +99,52 @@ main(int argc, char *argv[])
        int             ch;
        int             mode = -1;
        int             which = -1;
+       long            id = -1;
        char            *config = NULL;
-       struct userconf *cnf;
+       struct stat     st;
+       const char      *errstr;
+       char            arg, *name;
+       bool            relocated, nis;
 
        static const char *opts[W_NUM][M_NUM] =
        {
                { /* user */
-                       "V:C:qn:u:c:d:e:p:g:G:mk:s:oL:i:w:h:Db:NPy:Y",
-                       "V:C:qn:u:rY",
-                       "V:C:qn:u:c:d:e:p:g:G:ml:k:s:w:L:h:FNPY",
-                       "V:C:qn:u:FPa7",
-                       "V:C:q",
-                       "V:C:q",
-                       "V:C:q"
+                       "R:V:C:qn:u:c:d:e:p:g:G:mM:k:s:oL:i:w:h:H:Db:NPy:Y",
+                       "R:V:C:qn:u:rY",
+                       "R:V:C:qn:u:c:d:e:p:g:G:mM:l:k:s:w:L:h:H:FNPY",
+                       "R:V:C:qn:u:FPa7",
+                       "R:V:C:q",
+                       "R:V:C:q",
+                       "R:V:C:q"
                },
                { /* grp  */
-                       "V:C:qn:g:h:M:pNPY",
-                       "V:C:qn:g:Y",
-                       "V:C:qn:g:l:h:FM:m:NPY",
-                       "V:C:qn:g:FPa",
-                       "V:C:q"
+                       "R:V:C:qn:g:h:H:M:opNPY",
+                       "R:V:C:qn:g:Y",
+                       "R:V:C:qn:d:g:l:h:H:FM:m:NPY",
+                       "R:V:C:qn:g:FPa",
+                       "R:V:C:q"
                 }
        };
 
-       static int      (*funcs[W_NUM]) (struct userconf * _cnf, int _mode, struct cargs * _args) =
+       static int      (*funcs[W_NUM]) (int _mode, char *_name, long _id,
+           struct cargs * _args) =
        {                       /* Request handlers */
                pw_user,
                pw_group
        };
 
-       umask(0);               /* We wish to handle this manually */
+       name = NULL;
+       relocated = nis = false;
+       memset(&conf, 0, sizeof(conf));
+       strlcpy(conf.rootdir, "/", sizeof(conf.rootdir));
+       strlcpy(conf.etcpath, _PATH_PWD, sizeof(conf.etcpath));
+       conf.fd = -1;
+       conf.checkduplicate = true;
+
        LIST_INIT(&arglist);
 
+       (void)setlocale(LC_ALL, "");
+
        /*
         * Break off the first couple of words to determine what exactly
         * we're being asked to do
@@ -142,29 +156,56 @@ main(int argc, char *argv[])
                        /*
                         * Special case, allow pw -V<dir> <operation> [args] for scripts etc.
                         */
-                       if (argv[1][1] == 'V') {
+                       arg = argv[1][1];
+                       if (arg == 'V' || arg == 'R') {
+                               if (relocated)
+                                       errx(EXIT_FAILURE, "Both '-R' and '-V' "
+                                           "specified, only one accepted");
+                               relocated = true;
                                optarg = &argv[1][2];
                                if (*optarg == '\0') {
+                                       if (stat(argv[2], &st) != 0)
+                                               errx(EX_OSFILE, \
+                                                   "no such directory `%s'",
+                                                   argv[2]);
+                                       if (!S_ISDIR(st.st_mode))
+                                               errx(EX_OSFILE, "`%s' not a "
+                                                   "directory", argv[2]);
                                        optarg = argv[2];
                                        ++argv;
                                        --argc;
                                }
-                               addarg(&arglist, 'V', optarg);
+                               memcpy(&PWF, &VPWF, sizeof PWF);
+                               if (arg == 'R') {
+                                       strlcpy(conf.rootdir, optarg,
+                                           sizeof(conf.rootdir));
+                                       PWF._altdir = PWF_ROOTDIR;
+                               }
+                               snprintf(conf.etcpath, sizeof(conf.etcpath),
+                                   "%s%s", optarg, arg == 'R' ? "/etc" : "");
                        } else
                                break;
                }
-               else if ((tmp = getindex(Modes, argv[1])) != -1)
+               else if (mode == -1 && (tmp = getindex(Modes, argv[1])) != -1)
                        mode = tmp;
-               else if ((tmp = getindex(Which, argv[1])) != -1)
+               else if (which == -1 && (tmp = getindex(Which, argv[1])) != -1)
                        which = tmp;
-               else if ((tmp = getindex(Combo1, argv[1])) != -1 || (tmp = getindex(Combo2, argv[1])) != -1) {
+               else if ((mode == -1 && which == -1) &&
+                        ((tmp = getindex(Combo1, argv[1])) != -1 ||
+                         (tmp = getindex(Combo2, argv[1])) != -1)) {
                        which = tmp / M_NUM;
                        mode = tmp % M_NUM;
-               } else if (strcmp(argv[1], "help") == 0)
+               } else if (strcmp(argv[1], "help") == 0 && argv[2] == NULL)
                        cmdhelp(mode, which);
-               else if (which != -1 && mode != -1)
-                       addarg(&arglist, 'n', argv[1]);
-               else
+               else if (which != -1 && mode != -1) {
+                       if (strspn(argv[1], "0123456789") == strlen(argv[1])) {
+                               id = strtounum(argv[1], 0, UID_MAX, &errstr);
+                               if (errstr != NULL)
+                                       errx(EX_USAGE, "Bad id '%s': %s",
+                                           argv[1], errstr);
+                       } else
+                               name = argv[1];
+               } else
                        errx(EX_USAGE, "unknown keyword `%s'", argv[1]);
                ++argv;
                --argc;
@@ -176,6 +217,10 @@ main(int argc, char *argv[])
        if (mode == -1 || which == -1)
                cmdhelp(mode, which);
 
+       conf.rootfd = open(conf.rootdir, O_DIRECTORY|O_CLOEXEC);
+       if (conf.rootfd == -1)
+               errx(EXIT_FAILURE, "Unable to open '%s'", conf.rootdir);
+       conf.which = which;
        /*
         * We know which mode we're in and what we're about to do, so now
         * let's dispatch the remaining command line args in a genric way.
@@ -183,57 +228,150 @@ main(int argc, char *argv[])
        optarg = NULL;
 
        while ((ch = getopt(argc, argv, opts[which][mode])) != -1) {
-               if (ch == '?')
+               switch (ch) {
+               case '?':
                        errx(EX_USAGE, "unknown switch");
-               else
+                       break;
+               case '7':
+                       conf.v7 = true;
+                       break;
+               case 'C':
+                       conf.config = optarg;
+                       config = conf.config;
+                       break;
+               case 'F':
+                       conf.force = true;
+                       break;
+               case 'N':
+                       conf.dryrun = true;
+                       break;
+               case 'l':
+                       if (strlen(optarg) >= MAXLOGNAME)
+                               errx(EX_USAGE, "new name too long: %s", optarg);
+                       conf.newname = optarg;
+                       break;
+               case 'P':
+                       conf.pretty = true;
+                       break;
+               case 'Y':
+                       nis = true;
+                       break;
+               case 'a':
+                       conf.all = true;
+                       break;
+               case 'c':
+                       conf.gecos = pw_checkname(optarg, 1);
+                       break;
+               case 'g':
+                       if (which == 0) { /* for user* */
+                               addarg(&arglist, 'g', optarg);
+                               break;
+                       }
+                       if (strspn(optarg, "0123456789") != strlen(optarg))
+                               errx(EX_USAGE, "-g expects a number");
+                       id = strtounum(optarg, 0, GID_MAX, &errstr);
+                       if (errstr != NULL)
+                               errx(EX_USAGE, "Bad id '%s': %s", optarg,
+                                   errstr);
+                       break;
+               case 'u':
+                       if (strspn(optarg, "0123456789,") != strlen(optarg))
+                               errx(EX_USAGE, "-u expects a number");
+                       if (strchr(optarg, ',') != NULL) {
+                               addarg(&arglist, 'u', optarg);
+                               break;
+                       }
+                       id = strtounum(optarg, 0, UID_MAX, &errstr);
+                       if (errstr != NULL)
+                               errx(EX_USAGE, "Bad id '%s': %s", optarg,
+                                   errstr);
+                       break;
+               case 'n':
+                       name = optarg;
+                       break;
+               case 'H':
+                       if (conf.fd != -1)
+                               errx(EX_USAGE, "'-h' and '-H' are mutually "
+                                   "exclusive options");
+                       conf.precrypted = true;
+                       if (strspn(optarg, "0123456789") != strlen(optarg))
+                               errx(EX_USAGE, "'-H' expects a file descriptor");
+
+                       conf.fd = strtonum(optarg, 0, INT_MAX, &errstr);
+                       if (errstr != NULL)
+                               errx(EX_USAGE, "Bad file descriptor '%s': %s",
+                                   optarg, errstr);
+                       break;
+               case 'h':
+                       if (conf.fd != -1)
+                               errx(EX_USAGE, "'-h' and '-H' are mutually "
+                                   "exclusive options");
+
+                       if (strcmp(optarg, "-") == 0)
+                               conf.fd = '-';
+                       else if (strspn(optarg, "0123456789") == strlen(optarg)) {
+                               conf.fd = strtonum(optarg, 0, INT_MAX, &errstr);
+                               if (errstr != NULL)
+                                       errx(EX_USAGE, "'-h' expects a "
+                                           "file descriptor or '-'");
+                       } else
+                               errx(EX_USAGE, "'-h' expects a file "
+                                   "descriptor or '-'");
+                       break;
+               case 'o':
+                       conf.checkduplicate = false;
+                       break;
+               case 'q':
+                       conf.quiet = true;
+                       break;
+               case 'r':
+                       conf.deletehome = true;
+                       break;
+               default:
                        addarg(&arglist, ch, optarg);
+                       break;
+               }
                optarg = NULL;
        }
 
+       if (name != NULL && strlen(name) >= MAXLOGNAME)
+               errx(EX_USAGE, "name too long: %s", name);
+
        /*
         * Must be root to attempt an update
         */
-       if (geteuid() != 0 && mode != M_PRINT && mode != M_NEXT && getarg(&arglist, 'N')==NULL)
+       if (geteuid() != 0 && mode != M_PRINT && mode != M_NEXT && !conf.dryrun)
                errx(EX_NOPERM, "you must be root to run this program");
 
        /*
         * We should immediately look for the -q 'quiet' switch so that we
         * don't bother with extraneous errors
         */
-       if (getarg(&arglist, 'q') != NULL)
-               freopen("/dev/null", "w", stderr);
+       if (conf.quiet)
+               freopen(_PATH_DEVNULL, "w", stderr);
 
        /*
         * Set our base working path if not overridden
         */
 
-       config = getarg(&arglist, 'C') ? getarg(&arglist, 'C')->val : NULL;
-
-       if (getarg(&arglist, 'V') != NULL) {
-               char * etcpath = getarg(&arglist, 'V')->val;
-               if (*etcpath) {
-                       if (config == NULL) {   /* Only override config location if -C not specified */
-                               config = malloc(MAXPATHLEN);
-                               snprintf(config, MAXPATHLEN, "%s/pw.conf", etcpath);
-                       }
-                       memcpy(&PWF, &VPWF, sizeof PWF);
-                       setpwdir(etcpath);
-                       setgrdir(etcpath);
-               }
+       if (config == NULL) {   /* Only override config location if -C not specified */
+               asprintf(&config, "%s/pw.conf", conf.etcpath);
+               if (config == NULL)
+                       errx(EX_OSERR, "out of memory");
        }
-    
+
        /*
         * Now, let's do the common initialisation
         */
-       cnf = read_userconfig(config);
+       conf.userconf = read_userconfig(config);
 
-       ch = funcs[which] (cnf, mode, &arglist);
+       ch = funcs[which] (mode, name, id, &arglist);
 
        /*
         * If everything went ok, and we've been asked to update
         * the NIS maps, then do it now
         */
-       if (ch == EXIT_SUCCESS && getarg(&arglist, 'Y') != NULL) {
+       if (ch == EXIT_SUCCESS && nis) {
                pid_t   pid;
 
                fflush(NULL);
@@ -243,7 +381,7 @@ main(int argc, char *argv[])
                        warn("fork()");
                else if (pid == 0) {
                        /* Is make anywhere else? */
-                       execlp("/usr/bin/make", "make", NULL);
+                       execlp("/usr/bin/make", "make", (char *)NULL);
                        _exit(1);
                } else {
                        int   i;
@@ -251,7 +389,7 @@ main(int argc, char *argv[])
                        if ((i = WEXITSTATUS(i)) != 0)
                                errx(ch, "make exited with status %d", i);
                        else
-                               pw_log(cnf, mode, which, "NIS maps updated");
+                               pw_log(conf.userconf, mode, which, "NIS maps updated");
                }
        }
        return ch;
@@ -294,6 +432,7 @@ cmdhelp(int mode, int which)
                        {
                                "usage: pw useradd [name] [switches]\n"
                                "\t-V etcdir      alternate /etc location\n"
+                               "\t-R rootir      alternate root directory\n"
                                "\t-C config      configuration file\n"
                                "\t-q             quiet operation\n"
                                "  Adding users:\n"
@@ -306,14 +445,17 @@ cmdhelp(int mode, int which)
                                "\t-g grp         initial group\n"
                                "\t-G grp1,grp2   additional groups\n"
                                "\t-m [ -k dir ]  create and set up home\n"
+                               "\t-M mode        home directory permissions\n"
                                "\t-s shell       name of login shell\n"
                                "\t-o             duplicate uid ok\n"
                                "\t-L class       user class\n"
                                "\t-h fd          read password on fd\n"
+                               "\t-H fd          read encrypted password on fd\n"
                                "\t-Y             update NIS maps\n"
                                "\t-N             no update\n"
                                "  Setting defaults:\n"
                                "\t-V etcdir      alternate /etc location\n"
+                               "\t-R rootir      alternate root directory\n"
                                "\t-D             set user defaults\n"
                                "\t-b dir         default home root dir\n"
                                "\t-e period      default expiry period\n"
@@ -322,6 +464,7 @@ cmdhelp(int mode, int which)
                                "\t-G grp1,grp2   additional groups\n"
                                "\t-L class       default user class\n"
                                "\t-k dir         default home skeleton\n"
+                               "\t-M mode        home directory permissions\n"
                                "\t-u min,max     set min,max uids\n"
                                "\t-i min,max     set min,max gids\n"
                                "\t-w method      set default password method\n"
@@ -329,12 +472,14 @@ cmdhelp(int mode, int which)
                                "\t-y path        set NIS passwd file path\n",
                                "usage: pw userdel [uid|name] [switches]\n"
                                "\t-V etcdir      alternate /etc location\n"
+                               "\t-R rootir      alternate root directory\n"
                                "\t-n name        login name\n"
                                "\t-u uid         user id\n"
                                "\t-Y             update NIS maps\n"
                                "\t-r             remove home & contents\n",
                                "usage: pw usermod [uid|name] [switches]\n"
                                "\t-V etcdir      alternate /etc location\n"
+                               "\t-R rootir      alternate root directory\n"
                                "\t-C config      configuration file\n"
                                "\t-q             quiet operation\n"
                                "\t-F             force add if no user\n"
@@ -349,13 +494,16 @@ cmdhelp(int mode, int which)
                                "\t-l name        new login name\n"
                                "\t-L class       user class\n"
                                "\t-m [ -k dir ]  create and set up home\n"
+                               "\t-M mode        home directory permissions\n"
                                "\t-s shell       name of login shell\n"
                                "\t-w method      set new password using method\n"
                                "\t-h fd          read password on fd\n"
+                               "\t-H fd          read encrypted password on fd\n"
                                "\t-Y             update NIS maps\n"
                                "\t-N             no update\n",
                                "usage: pw usershow [uid|name] [switches]\n"
                                "\t-V etcdir      alternate /etc location\n"
+                               "\t-R rootir      alternate root directory\n"
                                "\t-n name        login name\n"
                                "\t-u uid         user id\n"
                                "\t-F             force print\n"
@@ -364,11 +512,22 @@ cmdhelp(int mode, int which)
                                "\t-7             print in v7 format\n",
                                "usage: pw usernext [switches]\n"
                                "\t-V etcdir      alternate /etc location\n"
+                               "\t-R rootir      alternate root directory\n"
                                "\t-C config      configuration file\n"
+                               "\t-q             quiet operation\n",
+                               "usage pw: lock [switches]\n"
+                               "\t-V etcdir      alternate /etc locations\n"
+                               "\t-C config      configuration file\n"
+                               "\t-q             quiet operation\n",
+                               "usage pw: unlock [switches]\n"
+                               "\t-V etcdir      alternate /etc locations\n"
+                               "\t-C config      configuration file\n"
+                               "\t-q             quiet operation\n"
                        },
                        {
                                "usage: pw groupadd [group|gid] [switches]\n"
                                "\t-V etcdir      alternate /etc location\n"
+                               "\t-R rootir      alternate root directory\n"
                                "\t-C config      configuration file\n"
                                "\t-q             quiet operation\n"
                                "\t-n group       group name\n"
@@ -379,11 +538,13 @@ cmdhelp(int mode, int which)
                                "\t-N             no update\n",
                                "usage: pw groupdel [group|gid] [switches]\n"
                                "\t-V etcdir      alternate /etc location\n"
+                               "\t-R rootir      alternate root directory\n"
                                "\t-n name        group name\n"
                                "\t-g gid         group id\n"
                                "\t-Y             update NIS maps\n",
                                "usage: pw groupmod [group|gid] [switches]\n"
                                "\t-V etcdir      alternate /etc location\n"
+                               "\t-R rootir      alternate root directory\n"
                                "\t-C config      configuration file\n"
                                "\t-q             quiet operation\n"
                                "\t-F             force add if not exists\n"
@@ -391,11 +552,13 @@ cmdhelp(int mode, int which)
                                "\t-g gid         group id\n"
                                "\t-M usr1,usr2   replaces users as group members\n"
                                "\t-m usr1,usr2   add users as group members\n"
+                               "\t-d usr1,usr2   delete users as group members\n"
                                "\t-l name        new group name\n"
                                "\t-Y             update NIS maps\n"
                                "\t-N             no update\n",
                                "usage: pw groupshow [group|gid] [switches]\n"
                                "\t-V etcdir      alternate /etc location\n"
+                               "\t-R rootir      alternate root directory\n"
                                "\t-n name        group name\n"
                                "\t-g gid         group id\n"
                                "\t-F             force print\n"
@@ -403,11 +566,13 @@ cmdhelp(int mode, int which)
                                "\t-a             print all accounting groups\n",
                                "usage: pw groupnext [switches]\n"
                                "\t-V etcdir      alternate /etc location\n"
+                               "\t-R rootir      alternate root directory\n"
                                "\t-C config      configuration file\n"
+                               "\t-q             quiet operation\n"
                        }
                };
 
-               fprintf(stderr, help[which][mode]);
+               fprintf(stderr, "%s", help[which][mode]);
        }
        exit(EXIT_FAILURE);
 }
@@ -415,10 +580,15 @@ cmdhelp(int mode, int which)
 struct carg    *
 getarg(struct cargs * _args, int ch)
 {
-       struct carg    *c = _args->lh_first;
+       struct carg    *c;
+
+       if (_args == NULL)
+               return (NULL);
+       
+       c = LIST_FIRST(_args);
 
        while (c != NULL && c->ch != ch)
-               c = c->list.le_next;
+               c = LIST_NEXT(c, list);
        return c;
 }