/* * $Id: vlimits.c,v 1.10 2003/12/12 16:10:58 tomcollins Exp $ * handle domain limits in both file format * Brian Kolaci <bk@galaxy.net> */#include <stdio.h>#include <stdlib.h>#include <string.h>#include <errno.h>#include <unistd.h>#include <sys/types.h>#include <sys/stat.h>#include <sys/param.h>#include "config.h"#include "vpopmail.h"#include "vauth.h"#include "vlimits.h"#define TOKENS " :\t\n\r"#define MAX_BUFF 256void vdefault_limits (struct vlimits *limits){    /* initialize structure */    memset(limits, 0, sizeof(*limits));    limits->maxpopaccounts = -1;    limits->maxaliases = -1;    limits->maxforwards = -1;    limits->maxautoresponders = -1;    limits->maxmailinglists = -1;    /* // if this fails, we have the very basic limits above    vlimits_read_limits_file(VLIMITS_DEFAULT_FILE, limits);*/}/* read in the limits file pointed contained in dir * parse the contents of the file and return result in a vlimits struct  */int vlimits_read_limits_file(const char *dir, struct vlimits * limits){    char buf[MAX_BUFF];    char * s1;    char * s2;    FILE * fs;    /* open the nominated limits file */    if ((fs = fopen(dir, "r")) == NULL) return (-1);    /* suck in each line of the file */    while (fgets(buf, sizeof(buf), fs) != NULL) {            /* skip comments */            if (*buf == '#') continue;            /* if the line contains no tokens, skip on to next line */            if ((s1 = strtok(buf, TOKENS)) == NULL)                continue;            if (!strcmp(s1, "maxpopaccounts")) {                if ((s2 = strtok(NULL, TOKENS)) == NULL)                    continue;                limits->maxpopaccounts = atoi(s2);            }            if (!strcmp(s1, "maxaliases")) {                if ((s2 = strtok(NULL, TOKENS)) == NULL)                    continue;                limits->maxaliases = atoi(s2);            }            if (!strcmp(s1, "maxforwards")) {                if ((s2 = strtok(NULL, TOKENS)) == NULL)                    continue;                limits->maxforwards = atoi(s2);            }            if (!strcmp(s1, "maxautoresponders")) {                if ((s2 = strtok(NULL, TOKENS)) == NULL)                    continue;                limits->maxautoresponders = atoi(s2);            }            if (!strcmp(s1, "maxmailinglists")) {                if ((s2 = strtok(NULL, TOKENS)) == NULL)                    continue;                limits->maxmailinglists = atoi(s2);            }            if (!strcmp(s1, "quota")) {                if ((s2 = strtok(NULL, TOKENS)) == NULL)                    continue;                limits->diskquota = atoi(s2);            }            if (!strcmp(s1, "maxmsgcount")) {                if ((s2 = strtok(NULL, TOKENS)) == NULL)                    continue;                limits->maxmsgcount = atoi(s2);            }            if (!strcmp(s1, "default_quota")) {                if ((s2 = strtok(NULL, TOKENS)) == NULL)                    continue;                limits->defaultquota = atoi(s2);            }            if (!strcmp(s1, "default_maxmsgcount")) {                if ((s2 = strtok(NULL, TOKENS)) == NULL)                    continue;                limits->defaultmaxmsgcount = atoi(s2);            }            if (!strcmp(s1, "disable_pop")) {                limits->disable_pop = 1;            }            if (!strcmp(s1, "disable_imap")) {                limits->disable_imap = 1;            }            if (!strcmp(s1, "disable_dialup")) {                limits->disable_dialup = 1;            }            if (!strcmp(s1, "disable_password_changing")) {                limits->disable_passwordchanging = 1;            }            if (!strcmp(s1, "disable_external_relay")) {                limits->disable_relay = 1;            }            if (!strcmp(s1, "disable_smtp")) {                limits->disable_smtp = 1;            }            if (!strcmp(s1, "disable_webmail")) {                limits->disable_webmail = 1;            }            if (!strcmp(s1, "perm_account")) {                if ((s2 = strtok(NULL, TOKENS)) == NULL)                    continue;                limits->perm_account = atoi(s2) & VLIMIT_DISABLE_ALL;            }            if (!strcmp(s1, "perm_alias")) {                if ((s2 = strtok(NULL, TOKENS)) == NULL)                    continue;                limits->perm_alias = atoi(s2) & VLIMIT_DISABLE_ALL;            }            if (!strcmp(s1, "perm_forward")) {                if ((s2 = strtok(NULL, TOKENS)) == NULL)                    continue;                limits->perm_forward = atoi(s2) & VLIMIT_DISABLE_ALL;            }            if (!strcmp(s1, "perm_autoresponder")) {                if ((s2 = strtok(NULL, TOKENS)) == NULL)                    continue;                limits->perm_autoresponder = atoi(s2) & VLIMIT_DISABLE_ALL;            }            if (!strcmp(s1, "perm_maillist")) {                unsigned long perm;                if ((s2 = strtok(NULL, TOKENS)) == NULL)                    continue;                perm = atol(s2);                limits->perm_maillist = perm & VLIMIT_DISABLE_ALL;                perm >>= VLIMIT_DISABLE_BITS;                limits->perm_maillist_users = perm & VLIMIT_DISABLE_ALL;                perm >>= VLIMIT_DISABLE_BITS;                limits->perm_maillist_moderators = perm & VLIMIT_DISABLE_ALL;            }            if (!strcmp(s1, "perm_quota")) {                if ((s2 = strtok(NULL, TOKENS)) == NULL)                    continue;                limits->perm_quota = atoi(s2) & VLIMIT_DISABLE_ALL;            }            if (!strcmp(s1, "perm_defaultquota")) {                if ((s2 = strtok(NULL, TOKENS)) == NULL)                    continue;                limits->perm_defaultquota = atoi(s2) & VLIMIT_DISABLE_ALL;            }    }    fclose(fs);    return 0;}/* Take the limits struct, and write it out as a .qmailadmin-limits * in the nominated dir */int vlimits_write_limits_file(const char *dir, const struct vlimits *limits){    FILE * fs;    /* open the limits file (overwrite if it already exists) */    if ((fs = fopen(dir, "w+")) != NULL) {        /* write out limits into the file */        fprintf(fs, "maxpopaccounts: %d\n", limits->maxpopaccounts);        fprintf(fs, "maxaliases: %d\n", limits->maxaliases);        fprintf(fs, "maxforwards: %d\n", limits->maxforwards);        fprintf(fs, "maxautoresponders: %d\n", limits->maxautoresponders);        fprintf(fs, "maxmailinglists: %d\n", limits->maxmailinglists);        fprintf(fs, "quota: %d\n", limits->diskquota);        fprintf(fs, "maxmsgcount: %d\n", limits->maxmsgcount);        fprintf(fs, "default_quota: %d\n", limits->defaultquota);        fprintf(fs, "default_maxmsgcount: %d\n", limits->defaultmaxmsgcount);        if (limits->disable_pop) fprintf(fs, "disable_pop\n");        if (limits->disable_imap) fprintf(fs, "disable_imap\n");        if (limits->disable_dialup) fprintf(fs, "disable_dialup\n");        if (limits->disable_passwordchanging) fprintf(fs, "disable_password_changing\n");        if (limits->disable_webmail) fprintf(fs, "disable_webmail\n");        if (limits->disable_relay) fprintf(fs, "disable_external_relay\n");        if (limits->disable_smtp) fprintf(fs, "disable_smtp\n");        fprintf(fs, "perm_account: %d\n", limits->perm_account);        fprintf(fs, "perm_alias: %d\n", limits->perm_alias);        fprintf(fs, "perm_forward: %d\n", limits->perm_forward);        fprintf(fs, "perm_autoresponder: %d\n", limits->perm_autoresponder);        fprintf(fs, "perm_maillist: %d\n", limits->perm_maillist);        fprintf(fs, "perm_quota: %d\n",          (limits->perm_quota)|(limits->perm_maillist_users<<VLIMIT_DISABLE_BITS)|(limits->perm_maillist_moderators<<(VLIMIT_DISABLE_BITS*2)));        fprintf(fs, "perm_defaultquota: %d\n", limits->perm_defaultquota);        fclose(fs);    } else {        fprintf(stderr, "vlimits: failed to open limits file (%d):  %s\n", errno, dir);        return -1;    }    return 0;}int vlimits_get_flag_mask(struct vlimits *limits) {    int mask = 0;    if (limits->disable_pop != 0) {        mask |= NO_POP;    }    if (limits->disable_smtp != 0) {        mask |= NO_SMTP;    }    if (limits->disable_imap != 0) {        mask |= NO_IMAP;    }    if (limits->disable_relay != 0) {        mask |= NO_RELAY;    }    if (limits->disable_webmail != 0) {        mask |= NO_WEBMAIL;    }    if (limits->disable_passwordchanging != 0) {        mask |= NO_PASSWD_CHNG;    }    if (limits->disable_dialup != 0) {        mask |= NO_DIALUP;    }    return mask;    /* this feature has been temporarily disabled until we can figure     * out a solution to the problem where edited users will have domain     * limits saved into their user limits.     */    //return 0;}#ifndef ENABLE_MYSQL_LIMITS/* grab the limits for this domain * look first for a ~vpopmail/domains/domain/.qmailadmin-limits * if not found, try ~vpopmail/etc/vlimits.default * if neither found, return error */int vget_limits(const char *domain, struct vlimits *limits){    char mydomain[MAX_BUFF];    char dir[MAX_BUFF];    uid_t uid;    gid_t gid;    /* initialise a limits struct. */    vdefault_limits(limits);    /* use copy of name as vget_assign may change it on us */    snprintf(mydomain, sizeof(mydomain), "%s", domain);    /* extract the dir, uid, gid of the domain */    if (vget_assign(mydomain, dir, sizeof(dir), &uid, &gid) == NULL) {      printf ("Error. Domain %s was not found in the assign file\n", mydomain);      return (-1);    }    /* work out the location of the .qmailadmin-limits file */    strncat (dir, "/.qmailadmin-limits", sizeof(dir)-strlen(dir)-1);    /* try to read in the contents of the .qmailadmin-limits file.     * and populate the limits struct with the result     */    if (vlimits_read_limits_file (dir, limits) == 0) {        /* Successfully read the file in */        chown(dir,uid,gid);        chmod(dir, S_IRUSR|S_IWUSR);    } else if (vlimits_read_limits_file (VLIMITS_DEFAULT_FILE, limits) == 0) {        /* We couldn't find a .qmailadmin-limits in the domain's dir.         * but we did find a global file at ~vpopmail/etc/vlimits.default file         * so we have used that instead         */    } else {        /* No ~vpopmail/domains/domain/.qmailadmin-limits         * and also no ~vpopmail/etc/vlimits.default         * so return error         */         return -1;    }    return 0;}/* Take the limits struct, and write it out as a .qmailadmin-limits * in the nominated domain's dir */int vset_limits(const char *domain, const struct vlimits *limits){    char mydomain[MAX_BUFF];    char dir[MAX_BUFF];    uid_t uid;    gid_t gid;    /* use copy of name as vget_assign may change it on us */    snprintf(mydomain, sizeof(mydomain), "%s", domain);    /* get the dir, uid and gid of the nominated domain */    if (vget_assign(mydomain, dir, sizeof(dir), &uid, &gid) == NULL) {      printf ("Error. Domain %s was not found in the assign file\n",mydomain);      return(-1);    }    strncat(dir, "/.qmailadmin-limits", sizeof(dir)-strlen(dir)-1);          if (vlimits_write_limits_file (dir, limits) != 0) {    	return -1;    }    return 0;}/* delete the .qmailadmin-limits file for the nominated domain */int vdel_limits(const char *domain){    char mydomain[MAX_BUFF];    char dir[MAX_BUFF];    uid_t uid;    gid_t gid;    /* use copy of name as vget_assign may change it on us */    snprintf(mydomain, sizeof(mydomain), "%s", domain);    /* get filename */    if (vget_assign(mydomain, dir, sizeof(dir), &uid, &gid) == NULL) {      printf ("Failed vget_assign for %s\n",mydomain);      return (-1);    }    strncat(dir, "/.qmailadmin-limits", sizeof(dir)-strlen(dir)-1);    return unlink(dir);}#endifvoid vlimits_setflags (struct vqpasswd *pw, char *domain){    struct vlimits limits;    if ((! (pw->pw_gid & V_OVERRIDE))      && (vget_limits (domain, &limits) == 0)) {        pw->pw_flags = pw->pw_gid | vlimits_get_flag_mask (&limits);    } else pw->pw_flags = pw->pw_gid;}