diff options
Diffstat (limited to 'src/msntab.c')
| -rw-r--r-- | src/msntab.c | 227 |
1 files changed, 221 insertions, 6 deletions
diff --git a/src/msntab.c b/src/msntab.c index 12002d5..446971c 100644 --- a/src/msntab.c +++ b/src/msntab.c @@ -30,6 +30,8 @@ #include <stdio.h> #include <unistd.h> #include <regex.h> +#include <time.h> +#include <ctype.h> #include <libdaemon/dlog.h> @@ -82,12 +84,196 @@ int glob_match(const char *e, const char *s) { } } + +/* +** +** The functions make_time, time_match, and day_match have +** been borrowed from the file rcvbox.c of vbox. +** +** Original Copyright: +** +** Copyright (C) 1996, 1997 Michael 'Ghandi' Herold +*/ + +static time_t make_time(time_t timenow, char *timestr, int mode) +{ + struct tm *locala; + struct tm localb; + + char timestring[5 + 1]; + char *hourstr, *minsstr; + int hourint, minsint, secsint; + + strncpy(timestring, timestr, 5); + + hourstr = timestring; + minsstr = index(hourstr, ':'); + + if (!minsstr) { + if (!mode) + minsstr = "00"; + else + minsstr = "59"; + } + else + *minsstr++ = '\0'; + + if (!mode) + secsint = 0; + else + secsint = 59; + + hourint = atoi(hourstr); + minsint = atoi(minsstr); + + if (hourint < 0 || hourint > 23) + return 0; + if (minsint < 0 || minsint > 59) + return 0; + + locala = localtime(&timenow); + if (!locala) + return 0; + + localb = *locala; + + localb.tm_sec = secsint; + localb.tm_min = minsint; + localb.tm_hour = hourint; + + return mktime(&localb); +} + +int time_match(char *timestr) +{ + char *timestring; + char *timeptr; + char *timenxt; + char *timebeg, *timeend; + time_t timenow; + time_t timesecsbeg, timesecsend; + int res = 0; + + timestring = strdup(timestr); + assert(timestring); + + timeptr = timestring; + timenow = time(NULL); + + if (!strcmp(timestring, "*")) { + res = 1; + goto out; + } + + if (!strcmp(timestring, "!") || !strcmp(timestring, "-")) + goto out; + + while (timeptr) { + timenxt = index(timeptr, ','); + if (timenxt) + *timenxt++ = '\0'; + + timebeg = timeptr; + timeend = index(timebeg, '-'); + + if (timeend) + *timeend++ = '\0'; + else + timeend = timebeg; + + if (!timeend) + timeend = timebeg; + + timesecsbeg = make_time(timenow, timebeg, 0); + timesecsend = make_time(timenow, timeend, 1); + + if (timesecsbeg < 0 || timesecsend < timesecsbeg) + daemon_log(LOG_WARNING, "End time less then begin time in timestring %s", timestr); + else if (timenow >= timesecsbeg && timenow <= timesecsend) { + res = 1; + goto out; + } + + timeptr = timenxt; + } + +out: + if (timestring) + free(timestring); + + return res; +} + +int day_match(char *strdays) +{ + static char *weekdaynames[] = { + "SUN", "MON", "TUE", "WED", "THU", "FRI", "SAT", + "WEEKEND", "WORK", "WORK", "WORK", "WORK", "WORK", "WEEKEND", + NULL + }; + + struct tm *timelocal; + char *beg, *nxt; + char *days; + int i; + time_t timenow; + int res = 0; + + days = strdup(strdays); + assert(days); + + if (!strcmp(days, "*")) { + res = 1; + goto out; + } + + if (!strcmp(days, "-") || !strcmp(days, "!") ) + goto out; + + timenow = time(NULL); + + timelocal = localtime(&timenow); + if (!timelocal) + goto out; + + for (i = 0; i < strlen(days); i++) { + if (!isalpha(days[i]) && days[i] != ',') { + daemon_log(LOG_WARNING, "Error in daystring %s", strdays); + goto out; + } + } + + beg = days; + + while (beg) { + nxt = index(beg, ','); + if (nxt) + *nxt++ = 0; + + for (i = 0; weekdaynames[i]; i++) { + if (!strcasecmp(weekdaynames[i], beg) && (i%7) == timelocal->tm_wday) { + res = 1; + goto out; + } + } + + beg = nxt; + } + +out: + if (days) + free(days); + + return res; +} + + struct tabentry* msntab_check_call(const char *callee, const char *caller) { struct tabentry *l = first; while (l) { - int a, b; - assert(l->local && l->remote); + int a, b, c, d; + assert(l->local && l->remote && l->dayspec && l->timespec); if (l->local[0] == '~') a = !regex_match(l->local+1, callee); @@ -99,8 +285,11 @@ struct tabentry* msntab_check_call(const char *callee, const char *caller) { b = !regex_match(l->remote+1, caller); else b = !glob_match(l->remote, caller); - - if (a && b) { + + c = day_match(l->dayspec); + d = time_match(l->timespec); + + if (a && b && c && d) { daemon_log(LOG_INFO, "MSN table entry from '%s:%u' matched.", l->filename, l->line); return msntab_ref(l); } @@ -135,6 +324,8 @@ void msntab_unref(struct tabentry *t) { free(t->local); free(t->remote); + free(t->dayspec); + free(t->timespec); free(t->filename); free(t); @@ -222,7 +413,7 @@ int msntab_load(const char *fn) { n = 0; while (!feof(f)) { - char l[256], *c, *e, *local, *remote, *options, *action; + char l[256], *c, *e, *local, *remote, *dayspec, *timespec, *options, *action; n++; @@ -274,6 +465,22 @@ int msntab_load(const char *fn) { if (c) c+=strspn(c, " \t"); + if (!(dayspec = strsep(&c, " \t"))) { + daemon_log(LOG_ERR, "Parse failure on dayspec field in '%s:%i'.", fn, n); + goto fail; + } + + if (c) + c+=strspn(c, " \t"); + + if (!(timespec = strsep(&c, " \t"))) { + daemon_log(LOG_ERR, "Parse failure on timespec field in '%s:%i'.", fn, n); + goto fail; + } + + if (c) + c+=strspn(c, " \t"); + if (!(options = strsep(&c, " \t"))) { daemon_log(LOG_ERR, "Parse failure on options field in '%s:%i'.", fn, n); goto fail; @@ -302,6 +509,12 @@ int msntab_load(const char *fn) { t->remote = strdup(remote); assert(t->remote); + t->dayspec = strdup(dayspec); + assert(t->dayspec); + + t->timespec = strdup(timespec); + assert(t->timespec); + if (action[0] == '@') { if (!strcmp(action, "@hangup")) t->action = CALL_ACTION_HANGUP; @@ -372,11 +585,13 @@ static void dump_entry(struct tabentry *t) { } else strncpy(s, "NOARGS", sizeof(s)); - daemon_log(LOG_INFO, "[%s:%02u] %-12s -> %-12s; shbuf=%c; pipehack=%c; rings=%u; action=%s; args=<%s>", + daemon_log(LOG_INFO, "[%s:%02u] %-12s -> %-12s; %s %s; shbuf=%c; pipehack=%c; rings=%u; action=%s; args=<%s>", t->filename, t->line, t->local, t->remote, + t->dayspec, + t->timespec, t->shbuf ? 'y' : 'n', t->pipehack ? 'y' : 'n', t->rings, |