+++ /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/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
-
-static struct swit switches[] = {
-#define MAILSW 0
- { "mail name", 0 },
-#define SERCHSW 1
- { "search directory", 0 },
-#define VERSIONSW 2
- { "version", 0 },
-#define HELPSW 3
- { "help", 0 },
- { NULL, 0 }
-};
-
-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];
-
-#ifdef LOCALE
- setlocale(LC_ALL, "");
-#endif
- invo_name = mhbasename(argv[0]);
-
- /* foil search of user profile/context */
- if (context_foil(NULL) == -1)
- done(1);
-
- 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(1);
- case VERSIONSW:
- print_version(invo_name);
- done(1);
-
- 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 (!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)==0) {
- 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)==0)
- 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;
-
- mdrop(mailspool);
- 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)==0)
- 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("mhmail", "mhmail",
- mail, "-subject", invo_name,
- NULL);
- adios("mhmail", "unable to exec ");
-
- default:
- close(pd[0]);
- out = fdopen(pd[1], "w");
- fprintf(out, "%s: the following is suspicious\n\n", invo_name);
- }
- }
-}
projects / mmh / commitdiff