+++ /dev/null
-
-/*
- * conflict.c -- check for conflicts in mail system
- *
- * This code is Copyright (c) 2002, by the authors of nmh. See the
- * COPYRIGHT file in the root directory of the nmh distribution for
- * complete copyright information.
- */
-
-#include <h/mh.h>
-#include <fcntl.h>
-#include <h/aliasbr.h>
-#include <h/mts.h>
-#include <h/utils.h>
-#include <grp.h>
-#include <pwd.h>
-
-/*
- * maximum number of directories that can
- * be specified using -search switch.
- */
-#define NDIRS 100
-
-/*
- * Add space for group names, 100 at a time
- */
-#define NGRPS 100
-
-#define CONFLICT_SWITCHES \
- X("mail name", 0, MAILSW) \
- X("search directory", 0, SERCHSW) \
- X("version", 0, VERSIONSW) \
- X("help", 0, HELPSW) \
-
-#define X(sw, minchars, id) id,
-DEFINE_SWITCH_ENUM(CONFLICT);
-#undef X
-
-#define X(sw, minchars, id) { sw, minchars, id },
-DEFINE_SWITCH_ARRAY(CONFLICT, switches);
-#undef X
-
-static char *mail = NULL;
-static char *dirs[NDIRS];
-static FILE *out = NULL;
-
-extern struct aka *akahead;
-extern struct home *homehead;
-
-/*
- * prototypes
- */
-void alias_files (int, char **);
-void pwd_names (void);
-void grp_names (void);
-void grp_members (void);
-void grp_ids (void);
-void maildrops (void);
-void mdrop(char *);
-int check (char *);
-void setup (void);
-
-
-int
-main (int argc, char **argv)
-{
- int akp = 0, dp = 0;
- char *cp, **argp, **arguments;
- char buf[BUFSIZ], *akv[50];
-
- if (nmh_init(argv[0], 0 /* use context_foil() */)) { return 1; }
-
- mts_init (invo_name);
- arguments = getarguments (invo_name, argc, argv, 0);
- argp = arguments;
-
- while ((cp = *argp++)) {
- if (*cp == '-') {
- switch (smatch (++cp, switches)) {
- case AMBIGSW:
- ambigsw (cp, switches);
- done (1);
- case UNKWNSW:
- adios (NULL, "-%s unknown", cp);
-
- case HELPSW:
- snprintf (buf, sizeof(buf), "%s [switches] [aliasfiles ...]",
- invo_name);
- print_help (buf, switches, 0);
- done (0);
- case VERSIONSW:
- print_version(invo_name);
- done (0);
-
- case MAILSW:
- if (!(cp = *argp++) || *cp == '-')
- adios (NULL, "missing argument to %s", argp[-2]);
- if (mail)
- adios (NULL, "mail to one address only");
- else
- mail = cp;
- continue;
-
- case SERCHSW:
- if (!(cp = *argp++) || *cp == '-')
- adios (NULL, "missing argument to %s", argp[-2]);
- if (dp >= NDIRS)
- adios (NULL, "more than %d directories", NDIRS);
- dirs[dp++] = cp;
- continue;
- }
- }
- akv[akp++] = cp;
- }
-
- if (akp == 0)
- akv[akp++] = AliasFile;
- if (!homehead)
- init_pw ();
- if (!mail)
- out = stdout;
- dirs[dp] = NULL;
-
- alias_files (akp, akv);
- pwd_names ();
- grp_names ();
- grp_members ();
- grp_ids ();
- maildrops ();
-
- done (0);
- return 1;
-}
-
-
-void
-alias_files (int akp, char **akv)
-{
- register int i, err;
-
- for (i = 0; i < akp; i++)
- if ((err = alias (akv[i])) != AK_OK) {
- setup ();
- fprintf (out, "aliasing error in %s - %s\n", akv[i], akerror (err));
- }
- else
- if (out && !mail)
- fprintf (out, "alias file %s is ok\n", akv[i]);
-}
-
-
-void
-pwd_names (void)
-{
- int hit = 0;
- register struct home *hm, *lm;
-
- for (hm = homehead; hm; hm = hm->h_next)
- for (lm = hm->h_next; lm; lm = lm->h_next)
- if (strcmp (hm->h_name, lm->h_name) == 0) {
- setup ();
- fprintf (out, "duplicate user %s(uid=%d)\n",
- lm->h_name, (int) lm->h_uid);
- hit++;
- }
-
- if (!hit && out && !mail)
- fprintf (out, "no duplicate users\n");
-}
-
-
-void
-grp_names (void)
-{
- int numgroups, maxgroups;
- int i, hit = 0;
- char **grps;
- struct group *gr;
-
- /* allocate space NGRPS at a time */
- numgroups = 0;
- maxgroups = NGRPS;
- grps = (char **) mh_xmalloc((size_t) (maxgroups * sizeof(*grps)));
-
- setgrent ();
- while ((gr = getgrent ())) {
- for (i = 0; i < numgroups; i++)
- if (!strcmp (grps[i], gr->gr_name)) {
- setup ();
- fprintf (out, "duplicate group %s(gid=%d)\n",
- gr->gr_name, (int) gr->gr_gid);
- hit++;
- break;
- }
- if (i >= numgroups) {
- if (numgroups >= maxgroups) {
- maxgroups += NGRPS;
- grps = (char **) mh_xrealloc(grps,
- (size_t) (maxgroups * sizeof(*grps)));
- }
- grps[numgroups++] = getcpy (gr->gr_name);
- }
- }
- endgrent ();
-
- for (i = 0; i < numgroups; i++)
- free (grps[i]);
- free (grps);
-
- if (!hit && out && !mail)
- fprintf (out, "no duplicate groups\n");
-}
-
-
-void
-grp_members (void)
-{
- register int hit = 0;
- register char **cp, **dp;
- register struct group *gr;
- register struct home *hm;
-
- setgrent ();
- while ((gr = getgrent ())) {
- for (cp = gr->gr_mem; *cp; cp++) {
- for (hm = homehead; hm; hm = hm->h_next)
- if (!strcmp (*cp, hm->h_name))
- break;
- if (hm == NULL) {
- setup ();
- fprintf (out, "group %s(gid=%d) has unknown member %s\n",
- gr->gr_name, (int) gr->gr_gid, *cp);
- hit++;
- } else {
- hm->h_ngrps++;
- }
-
- for (dp = cp + 1; *dp; dp++)
- if (strcmp (*cp, *dp) == 0) {
- setup ();
- fprintf (out, "group %s(gid=%d) has duplicate member %s\n",
- gr->gr_name, (int) gr->gr_gid, *cp);
- hit++;
- }
- }
- }
- endgrent ();
-
- for (hm = homehead; hm; hm = hm->h_next)
- if (hm->h_ngrps > NGROUPS_MAX) {
- setup ();
- fprintf (out, "user %s is a member of %d groups (max %d)\n",
- hm->h_name, hm->h_ngrps, NGROUPS_MAX);
- hit++;
- }
-
- if (!hit && out && !mail)
- fprintf (out, "all group members accounted for\n");
-}
-
-
-void
-grp_ids (void)
-{ /* -DRAND not implemented at most places */
- register int hit = 0;
- register struct home *hm;
-
- for (hm = homehead; hm; hm = hm->h_next)
- if (getgrgid (hm->h_gid) == NULL) {
- setup ();
- fprintf (out, "user %s(uid=%d) has unknown group-id %d\n",
- hm->h_name, (int) hm->h_uid, (int) hm->h_gid);
- hit++;
- }
-
- if (!hit && out && !mail)
- fprintf (out, "all group-id users accounted for\n");
-}
-
-
-void
-maildrops (void)
-{
- register int i;
-
- if (mmdfldir && *mmdfldir)
- mdrop (mmdfldir);
- if (uucpldir && *uucpldir)
- mdrop (uucpldir);
- for (i = 0; dirs[i]; i++)
- mdrop (dirs[i]);
-}
-
-
-void
-mdrop(char *drop)
-{
- register int hit = 0;
- register struct dirent *dp;
- register DIR *dd = opendir (drop);
-
- if (!dd) {
- setup ();
- fprintf (out, "unable to open maildrop area %s\n", drop);
- return;
- }
-
- while ((dp = readdir (dd)))
- if (dp->d_name[0] != '.' && !check (dp->d_name)) {
- setup ();
- fprintf (out,
- "there is a maildrop for the unknown user %s in %s\n",
- dp->d_name, drop);
- hit++;
- }
-
- closedir (dd);
- if (!hit && out && !mail)
- fprintf (out, "all maildrops accounted for in %s\n", drop);
-}
-
-
-int
-check (char *s)
-{
- register struct home *hm;
-
- for (hm = homehead; hm; hm = hm->h_next)
- if (!strcmp (s, hm->h_name))
- return 1;
- return 0;
-}
-
-void
-setup (void)
-{
- int fd, pd[2];
-
- if (out)
- return;
-
- if (mail) {
- if (pipe (pd) == NOTOK)
- adios ("pipe", "unable to");
-
- switch (fork ()) {
- case NOTOK:
- adios ("fork", "unable to");
-
- case OK:
- close (pd[1]);
- if (pd[0] != 0) {
- dup2 (pd[0], 0);
- close (pd[0]);
- }
- if ((fd = open ("/dev/null", O_WRONLY)) != NOTOK)
- if (fd != 1) {
- dup2 (fd, 1);
- close (fd);
- }
- execlp (mailproc, r1bindex (mailproc, '/'),
- mail, "-subject", invo_name, (void *) NULL);
- adios (mailproc, "unable to exec ");
-
- default:
- close (pd[0]);
- out = fdopen (pd[1], "w");
- fprintf (out, "%s: the following is suspicious\n\n",
- invo_name);
- }
- }
-}
projects / nmh / commitdiff