/****************************************************************************** * FIDOCONFIG --- library for fidonet configs ****************************************************************************** * Copyright (C) 1998-1999 * * Matthias Tichy * * Fido: 2:2433/1245 2:2433/1247 2:2432/605.14 * Internet: mtt@tichy.de * * Grimmestr. 12 Buchholzer Weg 4 * 33098 Paderborn 40472 Duesseldorf * Germany Germany * * This file is part of FIDOCONFIG. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; see file COPYING. If not, write to the Free * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA ***************************************************************************** * $Id: common.c,v 1.165.2.9 2006/03/11 14:24:23 stas_degteff Exp $ */ #include #include #include #include #include #include #include #include #include #include #include #ifdef HAS_UNISTD_H # include #endif #ifdef HAS_IO_H # include #endif #ifdef HAS_DOS_H #include #endif #ifdef HAS_PROCESS_H #include #endif #ifdef HAS_PWD_H #include #endif #ifdef __BEOS__ #include #endif #ifdef HAS_SYS_UTIME_H #include #else /* #elif defined(HAS_UTIME_H) */ #include #endif #include #include #include "fidoconf.h" #include "common.h" #include "xstr.h" #include "log.h" int copyString(char *str, char **pmem) { if (str==NULL) { printf("Line %d: There is a parameter missing after %s!\n", actualLineNr, actualKeyword); return 1; } nfree(*pmem); *pmem = (char *) sstrdup (stripRoundingChars(str, "\n")); return 0; } int copyStringUntilSep(char *str, char *seps, char **dest) { char *sepPos; if ((!str) || (!(*str))) { printf("Line %d: There is a parameter missing after %s!\n", actualLineNr, actualKeyword); return 0; } nfree(*dest); sepPos = strpbrk(str, seps); if (sepPos) { *dest = malloc(sepPos - str + 1); strncpy(*dest, str, sepPos - str); (*dest)[sepPos - str] = 0; return (sepPos - str); } *dest = (char *) sstrdup(str); return strlen(str); } void *memdup(void *p, size_t size) { void *newp; newp = smalloc(size); memcpy(newp, p, size); return newp; } static char *attrStr[] = { "pvt", "crash", "read", "sent", "att", "fwd", "orphan", "k/s", "loc", "hld", "xx2", "frq", "rrq", "cpt", "arq", "urq" }; static char *eattr[] = { "KFS", "TFS", "DIR", "IMM", "CFM", "NPD" }; long str2attr(const char *str) { int i; for (i = 0; i < sizeof(attrStr) / sizeof(char *); i++) if (strncasecmp(str, attrStr[i], strlen(attrStr[i]))==0) return 1 << i; return -1L; } char *attr2str(long attr) { char *flags = NULL; int i; for (i = 0; i < sizeof(attrStr) / sizeof(char *); i++) if (attr & (1 << i)) xstrscat(&flags, flags ? " " : "", attrStr[i], NULL); return flags; } char *extattr(const char *line) { int i; for (i=0; izone = (UINT16) t; if(!addr->zone) return; /* there is no zero zones in practice */ /* net */ str = endptr+1; if (NULL == strstr(str,"/")) return; t = strtoul(str,&endptr,10); addr->net = (UINT16) t; /* node */ str = endptr+1; t = strtoul(str,&endptr,10); addr->node = (UINT16) t; /* point */ if (*endptr && !isspace( endptr[0] )) str = endptr+1; else return; /* end of string */ t = strtoul(str,&endptr,10); addr->point = (UINT16) t; return; } #ifdef __TURBOC__ #pragma warn -sig #endif UINT16 getUINT16(FILE *in) { UCHAR dummy; dummy = (UCHAR) getc(in); return (dummy + (UCHAR) getc(in) * 256); } int fputUINT16(FILE *out, UINT16 word) { UCHAR dummy; dummy = word % 256; /* write high Byte */ fputc(dummy, out); dummy = word / 256; /* write low Byte */ return fputc(dummy, out); } #ifdef __TURBOC__ #pragma warn +sig #endif INT fgetsUntil0(UCHAR *str, size_t n, FILE *f, char *filter) { size_t i; for (i=0;i0 ) { i = str+l-1; while( (NULL != strchr(chr, *i)) && (i>=str) ) *i-- = '\0'; } return str; } char *strUpper(char *str) { char *temp = str; while(*str != 0) { *str = (char)toupper(*str); str++; } return temp; } char *strLower(char *str) { char *temp = str; while(*str != 0) { *str = (char)tolower(*str); str++; } return temp; } char *shell_expand(char *str) { char *slash = NULL, *ret = NULL, c; #ifdef __UNIX__ struct passwd *pw = NULL; #endif char *pfix = NULL; if (str == NULL) { return str; } if (*str == '\0' || str[0] != '~') { return str; } for (slash = str; *slash != '/' && *slash != '\0' #ifndef __UNIX__ && *slash != '\\' #endif ; slash++); c = *slash; *slash = 0; if (str[1] == '\0') { pfix = getenv("HOME"); #ifdef __UNIX__ if (pfix == NULL) { pw = getpwuid(getuid()); if (pw != NULL) { pfix = pw->pw_dir; } } #endif } #ifdef __UNIX__ else { pw = getpwnam(str + 1); if (pw != NULL) { pfix = pw->pw_dir; } } #endif *slash = c; if (pfix == NULL) /* could not find an expansion */ { return str; } ret = smalloc(strlen(slash) + strlen(pfix) + 1); strcpy(ret, pfix); strcat(ret, slash); nfree(str); return ret; } /* ================================================================ Function: makeUniqueDosFileName OVERVIEW: The following function is used to create "unique" 8.3 filenames. This is a major concerning when creating fidonet PKT files. If you use this function to create PKT filenames, and your node only runs programs that use the same revision of the fidoconfig library, it will be guranteed that your program will emit unique PKT filenames throughout the whole epoch (!), and in almost all cases you can also be sure that your packets will not have name clashes with packets from other nodes that run fidoconfig programs during a period of about two days. (Normally, the tosser of your uplink should not have a problem with clashes of pkt filenames from different links anyway, but just in case he uses a brain-dead tosser ...). CALLING: The function takes a directory name as argument (which is prepended to the generated file name, but has no further meaning), an extension (which again is appended to the gernated file name, but has no furhter meaning), and a fidoconfig structure. The fidoconfig sturcture is used to create a basic offset number that distinguishes your node/point from another node/point. DETAILS: The function guarantees to create - 36 filenames per second (if the average number of filenames created per second over the whole lifetime of the program is greater, the program will be delayed for the appropriate time via an atexit handler). That is, you can poll as many filenames out of the function as you wish, and you will get them quickly when you poll them, the worst case is that if your program ran a very short time it will be delayed before finally exiting. - If the fidoconfig file always has the same primary AKA, and no two programs that use that use the function run at the same time on your system, it will emit unique filenames during the whole epoch (!). That is, a Fidonet editor should NOT use this function (because a editor usually runs parallel to the tossertask), while the tosser, router, ticker, ... may safely use it as those programs usually run serialized. - If the primary AKA in the fidoconfig changes, the file names will change substantially, so that different nodes who both run hpt or other fidoconfig programs will generate substantially different file names. - ATTENTION: This function presently does not check if the file names that it calculates do already exist. If you are afraid of this (because you also use non-fidoconfig programs), you must check it yourself in the application. IMPLEMENTATION NOTES: The alogrithm for creating pkt file names works as follows: - Step 1: Based on OUR AKA, a static offset number is computed. This is done so that two systems which both run hpt create somewhat different PKT file name. The offset number is computed as follows: We imagine the node numbe decomposed in its digits: node = node1000 * 1000 + node100 * 100 + node10 *10 + node1 analoguous for the net number: net = net1000 * 1000 + net100 * 100 + net10 * 10 + net1 and the point number: point = point1000 * 1000 + point100 * 100 + point10 * 10 + point1 Then the decimal digits of "offset" are composed as follows: 8 7 6 5 4 3 2 1 (I) node10 node1 net10 net1 node100 node1000 net100 net1000 (II) node10 node1 point10 point1 node100 node1000 net100 net1000 where line (I) is used if point!=0, and line (II) is used if point==0. Then the offset number is multiplied by 21 * 36. (This will overflow a 32 bit unsigned integer, so in the code we only multiply by 21 and then do other tricks). - Step 2: If this is the first start, the value of time() is obtained and increased by one. That value is the "base packet number" for the file name about to be created. - Step 3: The base packet number is added to the offset number and printed as a seven digit number in a 36-based number system using the digits 0..9 and a..z. (We need all alphanumeric characters to assure all uniquenesses that we guranteed ... hexadezimal characters are not enough for this). - Step 4: The last (eigth') character in the generated file name is a counter to allow for creating more than one filename per second. The initial value of the counter is: (net10 * 10 + net1 + point100) modulo 36 - Step 5: The counter is printed as the eight character using characters 0..9, and a..z (for counter values from 10 to 35). - Step 6: On subsequent calls of this routine, the counter value is increased by one. If it becomes greater than 35 it is wrapped to zero. If all counter values have been used up (i.E. after the increasement and possibly wrapping the counter value is again the initial value), the base packet number is increased by one. - Step 7: At program exit, the program sleeps until the value of time() is greater or at least equal to the highest base packet number that has been used. (This is done via atexit. If the registering of the atexit program fails, the algorithm above is modified so that every time that the base packet number is increased, the program immediately waits until time() is equal the base packet number. This is slower, but it is a secure fallback in case atexit fails). The result is: - The routine is able to create 36 filenames per second. If more filenames are requested within a single second, calling the routine might delay program execution, but the routine will still produce as many file names as you request. - As long as the AKA that is based for calculating the offset does not change, and of course as long as the system clock is running continously without being turned backwards, the routine will create unique filenames during the whole epoch! - For different nodes that have different AKAs, there will usually be a considerable distance between the filenames created by the one node and those created by another node. Especially, different points of the same node will usually have different file names, and different nodes of the same hubs will usually have very different file names over a period of at least one day, and usually much more. There is no exact guarantee that always two different nodes create different file names within this period, but the chances are high. (Note that any decent tosser should not have any problem with receving arcmail bundles from two different nodes that contain pkt files with the same name; however, Fastecho and probably others do have this problem unless the sysop installs special scripts to circument it, and this is why we do the whole shit of sender specific offset numbers ...) - Remark: This code requires sizeof(unsinged long) >= 4. This is true for all known 16, 32 and 64 bit architectures. ================================================================ */ static time_t last_reftime_used; static int may_run_ahead; static void atexit_wait_handler_function(void) { time_t t; time(&t); while (t < last_reftime_used) { #ifdef HAS_sleep sleep(1); #else mysleep(1); #endif time (&t); } } char *makeUniqueDosFileName(const char *dir, const char *ext, s_fidoconfig *config) { char *fileName; static unsigned counter = 0x100, refcounter = 0x100; static time_t refTime = 0x0; static short reftime36[7]; static volatile int flag = 0; unsigned icounter; time_t tmpt; static char digits[37]="0123456789abcdefghijklmnopqrstuvwxyz"; int i, digit; short offset36[7]; unsigned long node10, node1, digit6, digit5, node100, node1000, net100, net1000, tempoffset, net10, net1, point100; size_t pathLen = strlen(dir); /* make it reentrant */ while (flag) { #ifdef HAS_sleep sleep(1); #else mysleep(1); #endif } flag = 1; if ((fileName = malloc(pathLen + 1 + 8 + 1 + strlen(ext) + 1)) == NULL) { /* delim file . ext null */ flag = 0; return NULL; } memcpy(fileName, dir, pathLen + 1); if (pathLen && fileName[pathLen - 1] != '\\' && fileName[pathLen - 1] != '/' && fileName[pathLen - 1] != PATH_DELIM) { fileName[pathLen + 1] = '\0'; fileName[pathLen] = PATH_DELIM; pathLen++; } if (refTime == 0x0) { time(&refTime); may_run_ahead = !atexit(atexit_wait_handler_function); last_reftime_used = refTime; } /* we make a node specific offset, so that two nodes that both run hpt each generate more or less distinct pkt file names */ node10 = (config->addr[0].node % 100) / 10; node1 = (config->addr[0].node % 10); if (config->addr[0].point != 0) { digit6 = (config->addr[0].point % 100) / 10; digit5 = config->addr[0].point % 10; } else { digit6 = (config->addr[0].net % 100) / 10; digit5 = (config->addr[0].net % 10); } node100 = (config->addr[0].node % 1000) / 100; node1000 = (config->addr[0].node % 10000) / 1000; net100 = (config->addr[0].net % 1000) / 100; net1000 = (config->addr[0].net % 10000) / 1000; net10 = (config->addr[0].net % 100) / 10; net1 = config->addr[0].net % 10; point100 = (config->addr[0].point % 1000) / 100; tempoffset = (node10 * 10000000UL + node1 * 1000000UL + digit6 * 100000UL + digit5 * 10000UL + node100 * 1000UL + node1000 * 100UL + net100 * 10UL + net1000 * 1UL ) * 21UL; icounter = (unsigned)((net10 * 10U + net1 + point100) % 36U); offset36[0] = 0; /* this is the multiplication by 36! */ for (i = 1; i <= 6; i++) { offset36[i] = (short)(tempoffset % 36); tempoffset = tempoffset / 36; } do { if (counter == icounter || icounter != refcounter) { counter = refcounter = icounter; last_reftime_used = ++refTime; if (!may_run_ahead) { time (&tmpt); while (tmpt < refTime) { #ifdef HAS_sleep sleep(1); #else mysleep(1); #endif time(&tmpt); } } tmpt = refTime; for (i = 0; i <= 6; i++) { reftime36[i] = (short)(tmpt % 36); tmpt = tmpt / 36; } } for (i = 0, digit = 0; i < 7; i++) { digit = digit + reftime36[i] + offset36[i]; fileName[pathLen + (6 - i)] = digits[digit % 36]; digit = digit / 36; } sprintf(fileName + pathLen + 7, "%c.%s", digits[counter], ext); counter = ((counter + 1) % 36); } while (0); /* too slow because of readdir: fexist(fileName) == TRUE */; flag = 0; return fileName; } #if defined(__DOS__) && !defined(__FLAT__) || defined(__WIN16__) /* _WINDOWS : 16-bit windows */ #define MOVE_FILE_BUFFER_SIZE 16384 #else #define MOVE_FILE_BUFFER_SIZE 128000 #endif int move_file(const char *from, const char *to, const int force_rewrite) { #if !(defined(USE_SYSTEM_COPY) && (defined(__NT__) || defined(__OS2__))) int rc; if ( cmpfnames((char*)from,(char*)to) == 0 ) return 0; #ifdef DEBUG w_log( LL_DEBUGY, __FILE__ ":%u:move_file(%s,%s,%d)", __LINE__, from, to, force_rewrite ); #endif if(force_rewrite) remove(to); else if(fexist(to)){ errno=EEXIST; return -1; } #ifdef DEBUG w_log( LL_DEBUGY, __FILE__ ":%u:move_file()", __LINE__ ); #endif rc = rename(from, to); if (!rc) { /* rename succeeded. fine! */ #elif defined(__NT__) && defined(USE_SYSTEM_COPY) int rc; if ( cmpfnames((char*)from,(char*)to) == 0 ) return 0; if(force_rewrite) remove(to); else if(fexist(to)){ errno=EEXIST; return -1; } rc = MoveFile(from, to); if (rc == TRUE) { #elif defined(__OS2__) && defined(USE_SYSTEM_COPY) USHORT rc; if ( cmpfnames((char*)from,(char*)to) == 0 ) return 0; if(force_rewrite) remove(to); else if(fexist(to)){ errno=EEXIST; return -1; } rc = DosMove((PSZ)from, (PSZ)to); if (!rc) { #endif return 0; } /* Rename did not succeed, probably because the move is accross file system boundaries. We have to copy the file. */ if (copy_file(from, to, force_rewrite)) return -1; remove(from); return 0; } int copy_file(const char *from, const char *to, const int force_rewrite) { #if !(defined(USE_SYSTEM_COPY) && (defined(__NT__) || defined(OS2))) char *buffer; size_t read; FILE *fin, *fout; struct stat st; struct utimbuf ut; int fh=-1; #ifdef DEBUG w_log( LL_DEBUGY, __FILE__ ":%u:copy_file(%s,%s,%d)", __LINE__, from, to, force_rewrite ); #endif if ( cmpfnames((char*)from,(char*)to) == 0 ) return 0; buffer = malloc(MOVE_FILE_BUFFER_SIZE); if (buffer == NULL) return -1; memset(&st, 0, sizeof(st)); if (stat(from, &st)) return -1; /* file does not exist */ #ifdef DEBUG w_log( LL_DEBUGY, __FILE__ ":%u:copy_file()", __LINE__); #endif fin = fopen(from, "rb"); /* todo: use open( ..., O_CREAT| ..., ...) * to prevent file overwrite */ if (fin == NULL) { nfree(buffer); return -1; } #ifdef DEBUG w_log( LL_DEBUGY, __FILE__ ":%u:copy_file()", __LINE__); #endif fh = open( to, (force_rewrite ? 0 : O_EXCL) | O_CREAT | O_TRUNC | O_WRONLY | O_BINARY, S_IREAD | S_IWRITE ); if( fh<0 ){ fh=errno; fclose(fin); errno=fh; return -1; } #ifdef __UNIX__ /* flock(to,O_EXLOCK); */ w_log( LL_DEBUGY, __FILE__ ":%u:copy_file()", __LINE__); /* try to save file ownership if it is possible */ if (fchown(fh, st.st_uid, st.st_gid) != 0) fchmod(fh, st.st_mode & 01777); else fchmod(fh, st.st_mode); #endif w_log( LL_DEBUGY, __FILE__ ":%u:copy_file()", __LINE__); fout = fdopen(fh, "wb"); if (fout == NULL) { fh=errno; nfree(buffer); fclose(fin); errno=fh; return -1; } while ((read = fread(buffer, 1, MOVE_FILE_BUFFER_SIZE, fin)) > 0) { if (fwrite(buffer, 1, read, fout) != read) { fh=errno; fclose(fout); fclose(fin); remove(to); nfree(buffer); errno=fh; w_log( LL_DEBUGY, __FILE__ ":%u:copy_file() failed", __LINE__); return -1; } } nfree(buffer); if (ferror(fout) || ferror(fin)) { fh=errno; fclose(fout); fclose(fin); remove(to); errno=fh; w_log( LL_DEBUGY, __FILE__ ":%u:copy_file() failed", __LINE__); return -1; } fclose(fin); if (fclose(fout)) { fh=errno; fclose(fout); fclose(fin); remove(to); errno=fh; w_log( LL_DEBUGY, __FILE__ ":%u:copy_file() failed", __LINE__); return -1; } ut.actime = st.st_atime; ut.modtime = st.st_mtime; utime(to, &ut); #elif defined (__NT__) && defined(USE_SYSTEM_COPY) int rc = 0; if ( cmpfnames((char*)from,(char*)to) == 0 ) return 0; if(force_rewrite) remove(to); /* if CopyFile can't work file deleted..... */ else if(fexist(to)){ errno=EEXIST; return -1; } rc = CopyFile(from, to, FALSE); if (rc == FALSE) { remove(to); return -1; } #elif defined (OS2) && defined(USE_SYSTEM_COPY) USHORT rc; if ( cmpfnames((char*)from,(char*)to) == 0 ) return 0; if(force_rewrite) remove(to); /* if DosCopy can't work file deleted..... */ else if(fexist(to)){ errno=EEXIST; return -1; } rc = DosCopy((PSZ)from, (PSZ)to, 1); if (rc) { remove(to); return -1; } #endif w_log( LL_DEBUGY, __FILE__ ":%u:copy_file() OK", __LINE__); return 0; } char *aka2str(const hs_addr aka) { static char straka[SIZE_aka2str]; if (aka.point) sprintf(straka,"%u:%u/%u.%u",aka.zone,aka.net,aka.node,aka.point); else sprintf(straka,"%u:%u/%u",aka.zone,aka.net,aka.node); return straka; } /* Store 5d-address string into allocalted array (by malloc()). */ char *aka2str5d(hs_addr aka) { char *straka=NULL; if (aka.point) { if (aka.domain) xscatprintf( &straka, "%u:%u/%u.%u@%s", aka.zone, aka.net, aka.node, aka.point, aka.domain ); else xscatprintf( &straka, "%u:%u/%u.%u", aka.zone, aka.net, aka.node, aka.point ); }else if (aka.domain) xscatprintf( &straka, "%u:%u/%u@%s", aka.zone, aka.net, aka.node, aka.domain ); else xscatprintf( &straka, "%u:%u/%u", aka.zone, aka.net, aka.node ); return straka; } int patimat(char *raw,char *pat) { char *upraw=NULL, *uppat=NULL; int i; if (raw) upraw=strUpper(sstrdup(raw)); if (pat) uppat=strUpper(sstrdup(pat)); i=patmat(upraw,uppat); nfree(upraw); nfree(uppat); return(i); } void freeGroups(char **grps, int numGroups) { nfree (grps); /* ugly hack to prevent compiler warnings */ numGroups = numGroups; } char **copyGroups(char **grps, int numGroups) { char **dst; int i, len = 0; if (grps == NULL || numGroups == 0) return NULL; for (i=0; i0) dst[i] = dst[i-1] + strlen(dst[i-1]) + 1; sstrcpy(dst[i], grps[i]); } return dst; } void freeLink (s_link *link) { if (link == NULL) return; nfree (link->hisAka.domain); nfree (link->hisPackAka.domain); if (link->handle != link->name) nfree(link->handle); nfree (link->name); if (link->pktPwd != link->defaultPwd)nfree(link->pktPwd); if (link->ticPwd != link->defaultPwd)nfree(link->ticPwd); if (link->areaFixPwd != link->defaultPwd) nfree(link->areaFixPwd); if (link->fileFixPwd != link->defaultPwd) nfree(link->fileFixPwd); if (link->bbsPwd != link->defaultPwd) nfree(link->bbsPwd); if (link->sessionPwd != link->sessionPwd) nfree(link->sessionPwd); nfree(link->email); nfree(link->emailFrom); nfree(link->emailSubj); nfree(link->defaultPwd); nfree(link->pktFile); nfree(link->packFile); nfree(link->floFile); nfree(link->bsyFile); nfree(link->LinkGrp); freeGroups(link->AccessGrp, link->numAccessGrp); freeGroups(link->optGrp, link->numOptGrp); freeGroups(link->frMask, link->numFrMask); freeGroups(link->dfMask, link->numDfMask); nfree(link->forwardRequestFile); nfree(link->forwardFileRequestFile); nfree(link->denyFwdFile); nfree(link->autoAreaCreateDefaults); nfree(link->autoAreaCreateFile); nfree(link->autoFileCreateDefaults); nfree(link->autoFileCreateFile); nfree(link->RemoteRobotName); nfree(link->RemoteFileRobotName); nfree(link->msgBaseDir); return; } int e_readCheck(const s_fidoconfig *config, s_area *echo, s_link *link) { /* rc == '\x0000' access o'k */ /* rc == '\x0001' no access group */ /* rc == '\x0002' no access level */ /* rc == '\x0003' no access export */ /* rc == '\x0004' not linked */ unsigned int i, rc = 0; for (i=0; idownlinkCount; i++) { if (link == echo->downlinks[i]->link) break; } if (i == echo->downlinkCount) return 4; /* pause */ if (((link->Pause & EPAUSE) == EPAUSE) && echo->noPause==0) return 3; if (echo->group) { if (link->numAccessGrp) { if (config->numPublicGroup) { if (!grpInArray(echo->group,link->AccessGrp,link->numAccessGrp) && !grpInArray(echo->group,config->PublicGroup,config->numPublicGroup)) rc = 1; } else if (!grpInArray(echo->group,link->AccessGrp,link->numAccessGrp)) rc = 1; } else if (config->numPublicGroup) { if (!grpInArray(echo->group,config->PublicGroup,config->numPublicGroup)) rc = 1; } else if (link->numOptGrp==0) return 1; if (link->numOptGrp) { if (grpInArray(echo->group,link->optGrp,link->numOptGrp)) { if (link->export==0) return 3; else rc = 0; } } } if (echo->levelread > link->level) return 2; return rc; } int e_writeCheck(const s_fidoconfig *config, s_area *echo, s_link *link) { /* rc == '\x0000' access o'k */ /* rc == '\x0001' no access group */ /* rc == '\x0002' no access level */ /* rc == '\x0003' no access import */ /* rc == '\x0004' not linked */ unsigned int i, rc = 0; for (i=0; idownlinkCount; i++) { if (link == echo->downlinks[i]->link) break; } if (i == echo->downlinkCount) return 4; if (echo->group) { if (link->numAccessGrp) { if (config->numPublicGroup) { if (!grpInArray(echo->group,link->AccessGrp,link->numAccessGrp) && !grpInArray(echo->group,config->PublicGroup,config->numPublicGroup)) rc = 1; } else if (!grpInArray(echo->group,link->AccessGrp,link->numAccessGrp)) rc = 1; } else if (config->numPublicGroup) { if (!grpInArray(echo->group,config->PublicGroup,config->numPublicGroup)) rc = 1; } else if (link->numOptGrp==0) return 1; if (link->numOptGrp) { if (grpInArray(echo->group,link->optGrp,link->numOptGrp)) { if (link->import==0) return 3; else rc = 0; } } } if (echo->levelwrite > link->level) return 2; return rc; } /* safe malloc, realloc, calloc */ void *smalloc(size_t size) { void *ptr = malloc(size); if (ptr == NULL) { w_log(LL_CRIT, "out of memory"); abort(); } return ptr; } void *srealloc(void *ptr, size_t size) { void *newptr = realloc(ptr, size); if (newptr == NULL) { w_log(LL_CRIT, "out of memory"); abort(); } return newptr; } void *scalloc(size_t nmemb, size_t size) { void *ptr = smalloc(size*nmemb); memset(ptr,'\0',size*nmemb); return ptr; } char *sstrdup(const char *src) { char *ptr; if (src == NULL) return NULL; /* if (!strlen(src)) return NULL; */ ptr = strdup (src); if (ptr == NULL) { w_log(LL_CRIT, "out of memory"); abort(); } return ptr; } /* safe strcmp */ int sstrcmp(const char *str1, const char *str2) { if( str1==str2 ) return 0; /* strings match */ if( str1==NULL ) return -1; /* str1(NULL) < str2(not NULL) */ if( str2==NULL ) return 1; /* str1(not NULL) > str2(NULL) */ return strcmp(str1,str2); /* compare strings */ } /* safety strncmp */ int sstrncmp(const char *str1, const char *str2, size_t length) { if( str1==str2 ) return 0; /* strings match */ if( str1==NULL ) return -1; /* str1(NULL) < str2(not NULL) */ if( str2==NULL ) return 1; /* str1(not NULL) > str2(NULL) */ return strncmp(str1,str2, length); /* compare strings */ } /* safe stricmp (case-insencitive) */ int sstricmp(const char *str1, const char *str2) { if( str1==str2 ) return 0; /* strings match */ if( str1==NULL ) return -1; /* str1(NULL) < str2(not NULL) */ if( str2==NULL ) return 1; /* str1(not NULL) > str2(NULL) */ return stricmp(str1,str2); /* compare strings */ } /* safety strnicmp (case-insencitive) */ int sstrnicmp(const char *str1, const char *str2, size_t length) { if( str1==str2 ) return 0; /* strings match */ if( str1==NULL ) return -1; /* str1(NULL) < str2(not NULL) */ if( str2==NULL ) return 1; /* str1(not NULL) > str2(NULL) */ return strnicmp(str1,str2, length); /* compare strings */ } /* From binkd sources (tools.c), modified by Stas Degteff * Copyes not more than len chars from src into dst, but, unlike strncpy(), * it appends '\0' even if src is longer than len. * Return dst * Prevent memory faults: * - if dst is NULL doing nothing and return NULL * - if src is NULL and dst not NULL store '\0' into dst[0] and return it. */ char *strnzcpy (char *dst, const char *src, size_t len) { if (!dst) return NULL; if (!src) { dst[0]='\0'; return dst; } dst[len - 1] = 0; return strncpy (dst, src, len - 1); } /* From binkd sources (tools.c), modified by Stas Degteff * Concantenate not more than len chars from src into dst, but, unlike * strncat(), it appends '\0' even if src is longer than len. * Return dst * Prevent memory faults: * - if dst is NULL doing nothing and return NULL * - if src is NULL doing nothing and return dst. */ char *strnzcat (char *dst, const char *src, size_t len) { size_t x; if (!dst) return NULL; if (!src) return dst; x = strlen (dst); return strnzcpy (dst + x, src, len); } /* Get the object name from the end of a full or partial pathname. The GetFilenameFromPathname function gets the file (or directory) name from the end of a full or partial pathname. Returns The file (or directory) name: pointer to part of all original pathname. */ char *GetFilenameFromPathname(const char* pathname) { char *fname = strrchr(pathname,PATH_DELIM); if(fname) fname++; else return (char*)pathname; return fname; } /* Get the object name from the end of a full or partial pathname (OS-independed). This function gets the file (or directory) name from the end of a full or partial pathname for any path style: UNIX, DOS or mixed (mixed style may be used in Windows NT OS family). Returns the file (or directory) name: pointer to part of all original pathname. */ char *OS_independed_basename(const char *pathname) { register char *fname=NULL, *pname=(char*)pathname; /* Process Unix-style, result to pathname */ if( (fname = strrchr(pname,'/')) ) pname = ++fname; /* Process DOS-style */ if( (fname = strrchr(pname,'\\')) ) ++fname; else fname = pname; return fname; } /* Return directory part of pathname (without filename, '/' or '\\' present at end) * Return value is pointer to malloc'ed string; * if pathname is filenfme without directory return current directory (./ or .\) */ char *GetDirnameFromPathname(const char* pathname) { char *sp=NULL, *rp=NULL; register unsigned short lll; sp = strrchr(pathname,PATH_DELIM); if( sp ){ sp++; lll = sp-pathname; rp = scalloc(lll+1,sizeof(char)); sstrncpy(rp, pathname, lll); }else #if PATH_DELIM=='/' rp = sstrdup("./"); #else rp = sstrdup(".\\"); #endif return rp; } char *makeMsgbFileName(ps_fidoconfig config, char *s) { /* allowed symbols: 0..9, a..z, A..Z, ".,!@#$^()~-_{}[]" */ static char defstr[]="\"*/:;<=>?\\|%`'&+"; /* not allowed */ char *name=NULL, *str; if (config->notValidFNChars) str = config->notValidFNChars; else str = defstr; while (*s) { if (strchr(str,*s)) xscatprintf(&name,"%%%x", *s); else xscatprintf(&name, "%c", *s); s++; } return name; } int NCreateOutboundFileNameAka(ps_fidoconfig config, s_link *link, e_flavour prio, e_pollType typ, hs_addr *aka) { int fd; /* bsy file for current link */ int nRet = 0; char *name=NULL, *sepDir=NULL, limiter=PATH_DELIM, *tmpPtr; e_bundleFileNameStyle bundleNameStyle = eUndef; if (link->linkBundleNameStyle!=eUndef) bundleNameStyle=link->linkBundleNameStyle; else if (config->bundleNameStyle!=eUndef) bundleNameStyle=config->bundleNameStyle; if (bundleNameStyle != eAmiga) { if (aka->point) xscatprintf(&name, "%08x.", aka->point); else xscatprintf(&name, "%04x%04x.", aka->net, aka->node); } else { xscatprintf(&name, "%u.%u.%u.%u.", aka->zone, aka->net, aka->node, aka->point); } if (typ != REQUEST) { switch (prio) { case crash : xstrcat(&name, "c"); break; case hold : xstrcat(&name, "h"); break; case direct : xstrcat(&name, "d"); break; case immediate : xstrcat(&name, "i"); break; case normal : xstrcat(&name, (typ==PKT) ? "o" : "f"); break; } } else xstrcat(&name, "req"); switch (typ) { case PKT : xstrcat(&name, "ut"); break; case FLOFILE : xstrcat(&name, "lo"); break; case REQUEST : break; } /* create floFile */ xstrcat(&link->floFile, config->outbound); /* add suffix for other zones */ if (aka->zone != config->addr[0].zone && bundleNameStyle != eAmiga) { link->floFile[strlen(link->floFile)-1]='\0'; xscatprintf(&link->floFile, ".%03x%c", aka->zone, limiter); } if (aka->point && bundleNameStyle != eAmiga) xscatprintf(&link->floFile, "%04x%04x.pnt%c", aka->net, aka->node, limiter); _createDirectoryTree(link->floFile); /* create directoryTree if necessary */ xstrcat(&link->bsyFile, link->floFile); xstrcat(&link->floFile, name); /* separate bundles */ if (config->separateBundles && (bundleNameStyle!=eAmiga || (bundleNameStyle==eAmiga && link->packerDef==NULL))) { xstrcat(&sepDir, link->bsyFile); if (bundleNameStyle==eAmiga) xscatprintf(&sepDir, "%u.%u.%u.%u.sep%c", aka->zone, aka->net, aka->node ,aka->point, limiter); else if (aka->point) xscatprintf(&sepDir, "%08x.sep%c", aka->point, limiter); else xscatprintf(&sepDir, "%04x%04x.sep%c", aka->net, aka->node, limiter); _createDirectoryTree(sepDir); nfree(sepDir); } /* create bsyFile */ if ((tmpPtr=strrchr(name, '.')) != NULL) *tmpPtr = '\0'; xstrscat(&link->bsyFile, name, ".bsy", NULL); nfree(name); /* maybe we have session with this link? */ if ( (fd=open(link->bsyFile, O_CREAT | O_RDWR | O_EXCL, S_IREAD | S_IWRITE)) < 0 ) { #if !defined(__WATCOMC__) int save_errno = errno; if (save_errno != EEXIST) { w_log('7', "cannot create *.bsy file \"%s\" for %s (errno %d)\n", link->bsyFile, aka2str(*aka), (int)save_errno); nRet = -1; } else { #endif w_log('7', "link %s is busy.", aka2str(*aka)); nfree(link->floFile); nfree(link->bsyFile); nRet = 1; #if !defined(__WATCOMC__) } #endif } else { close(fd); nRet = 0; } return nRet; } int NCreateOutboundFileName(ps_fidoconfig config, s_link *link, e_flavour prio, e_pollType typ) { return NCreateOutboundFileNameAka(config, link, prio, typ, &(link->hisAka)); } int needUseFileBoxForLinkAka(ps_fidoconfig config, s_link *link, hs_addr *aka) { char limiter=PATH_DELIM; char *bsyFile = NULL; e_bundleFileNameStyle bundleNameStyle = eUndef; if (link->linkBundleNameStyle != eUndef) bundleNameStyle = link->linkBundleNameStyle; else if (config->bundleNameStyle != eUndef) bundleNameStyle = config->bundleNameStyle; /* link->useFileBox means: * 0 - unknown, need to check * 1 - don't use * 2 - use box */ if (link->useFileBox == 1) return 0; /* Don't use */ if (link->useFileBox == 2) return 1; /* Use */ /* link->useFileBox == 0 -> still don't know */ if ( (link->fileBox==NULL && config->fileBoxesDir==NULL) || (theApp.module == M_HTICK && !link->tickerPackToBox) ) { link->useFileBox = 1; return 0; } if (link->fileBoxAlways) { link->useFileBox = 2; return 1; } /* check if can we use outbound */ xstrcat(&bsyFile, config->outbound); /* add suffix for other zones */ if (aka->zone != config->addr[0].zone && bundleNameStyle != eAmiga) { bsyFile[strlen(bsyFile)-1]='\0'; xscatprintf(&bsyFile, ".%03x%c", aka->zone, limiter); } if (aka->point && bundleNameStyle != eAmiga) xscatprintf(&bsyFile, "%04x%04x.pnt%c", aka->net, aka->node, limiter); _createDirectoryTree(bsyFile); /* create directoryTree if necessary */ if (link->linkBundleNameStyle!=eUndef) bundleNameStyle=link->linkBundleNameStyle; else if (config->bundleNameStyle!=eUndef) bundleNameStyle=config->bundleNameStyle; if (bundleNameStyle != eAmiga) { if (aka->point) xscatprintf(&bsyFile, "%08x", aka->point); else xscatprintf(&bsyFile, "%04x%04x", aka->net, aka->node); } else { xscatprintf(&bsyFile, "%u.%u.%u.%u", aka->zone, aka->net, aka->node, aka->point); } xstrscat(&bsyFile, ".bsy", NULL); if (fexist(bsyFile)) { link->useFileBox = 2; } else { /* link is not busy, use outrbound */ link->useFileBox = 1; } nfree (bsyFile); return link->useFileBox - 1; } int needUseFileBoxForLink(ps_fidoconfig config, s_link *link) { return needUseFileBoxForLinkAka(config, link, &(link->hisAka)); } char *makeFileBoxNameAka (ps_fidoconfig config, s_link *link, hs_addr *aka) { char *name=NULL; xscatprintf (&name, "%s%d.%d.%d.%d%s%c", config->fileBoxesDir, aka->zone, aka->net, aka->node, aka->point, (link->echoMailFlavour==hold) ? ".h" : "", PATH_DELIM); return name; } char *makeFileBoxName (ps_fidoconfig config, s_link *link) { return makeFileBoxNameAka(config, link, &(link->hisAka)); } void fillCmdStatement(char *cmd, const char *call, const char *archiv, const char *file, const char *path) { const char *start, *tmp, *add; #ifdef __NT__ char *p; #endif char fullarch[256]; char fullpath[256]; #ifdef __NT__ GetFullPathName(archiv, sizeof(fullarch), fullarch, &p); if(*path) GetFullPathName(path, sizeof(fullpath), fullpath, &p); #else strcpy(fullpath,path); strcpy(fullarch,archiv); #endif *cmd = '\0'; start = NULL; for (tmp = call; (start = strchr(tmp, '$')) != NULL; tmp = start + 2) { switch(*(start + 1)) { case 'a': add = fullarch; break; case 'p': add = fullpath; break; case 'f': add = file; break; default: strncat(cmd, tmp, (size_t) (start - tmp + 1)); start--; continue; }; strncat(cmd, tmp, (size_t) (start - tmp)); strcat(cmd, add); }; strcat(cmd, tmp); } /* Change file sufix (add if not present). inc = 1 - increment suffix of file if new file exist; rename file; return new file name or NULL; set errno inc = 0 - do not increment suffix, do not rename file, return new suffix only if 1st or 2nd parameter is NULL return NULL and set errno to EINVAL */ char *changeFileSuffix(char *fileName, char *newSuffix, int inc) { int i; char buff[3]; char *beginOfSuffix; char *newFileName=NULL; size_t length; if(!(fileName && newSuffix)){ w_log( LL_ERR, "changeFileSuffix() illegal call: %s parameter is NULL", fileName? "2nd" : "1st" ); errno = EINVAL; return NULL; } beginOfSuffix = strrchr(fileName, '.'); if(beginOfSuffix==NULL || beginOfSuffix3?1:4-i)) ); strncpy(newFileName, fileName, length); if( length > strlen(newFileName) ) strcat(newFileName, "."); strcat(newFileName, newSuffix); if(inc == 0){ w_log(LL_DEBUGF, __FILE__ ":%u: old: '%s' new: '%s'",__LINE__, fileName, newFileName); return newFileName; } beginOfSuffix = newFileName+length+1; /*last 2 chars*/ for (i=1; fexist(newFileName) && (i<255); i++) { #ifdef HAS_snprintf snprintf(buff, 3, "%02x", i); #else sprintf(buff, "%02x", i); #endif strncpy(beginOfSuffix, buff, 2); } w_log(LL_DEBUGF, __FILE__ ":%u: old: '%s' new: '%s'",__LINE__, fileName, newFileName); if (!fexist(newFileName)) { if(rename(fileName, newFileName)){ /* -1 = error */ w_log(LL_ERR, "Could not rename '%s' to '%s': %s", fileName, newFileName, strerror (errno)); nfree(newFileName); return NULL; } return newFileName; } else { w_log(LL_ERR, "Could not change suffix for %s. File already there and the 255 files after", fileName); nfree(newFileName); errno = EEXIST; return NULL; } } unsigned int dec2oct(unsigned int decimal) { char tmpstr[6]; unsigned int mode; mode = decimal; sprintf(tmpstr, "%u", mode); sscanf(tmpstr, "%o", &mode); return mode; } #if defined(__UNIX__) /* this function should be moved to huskylib() */ int createLock(char *lockFile) { FILE *fp; char s_pid[64]; long pid = 0; int process_active=0; if(!access(lockFile, R_OK | W_OK)) { fp = fopen(lockFile, "r"); if (fp == NULL) return 0; if (fgets(s_pid, 64, fp)) pid=atol(s_pid); if (pid) /* pid is not a trash in file */ { process_active=1; if (kill(pid, 0) && (errno==ESRCH)) process_active=0; } fclose(fp); } if(process_active) return 0; fp = fopen(lockFile, "w"); fprintf(fp, "%lu\n", (unsigned long)getpid()); fclose(fp); return 1; } #endif int lockFile(const char *lockfile, int advisoryLock) { int fh = -1; if(!lockfile) return fh; if (advisoryLock > 0) { while(advisoryLock > 0) { if ((fh=open(lockfile,O_CREAT|O_RDWR,S_IREAD|S_IWRITE))<0) { /* fprintf(stderr,"cannot open/create lock file: %s wait %d seconds\n",lockfile, advisoryLock);*/ advisoryLock--; } else { if (write(fh," ", 1)!=1) { /* fprintf(stderr,"can't write to lock file! wait %d seconds\n", advisoryLock);*/ close(fh); fh = -1; advisoryLock--; } else if (lock(fh,0,1)<0) { /* fprintf(stderr,"lock file used by another process! %d seconds\n", advisoryLock);*/ close(fh); fh = -1; advisoryLock--; } } if(fh < 0) sleep(1); else break; } } else { /* normal locking */ #ifdef O_SHEXCL fh=open(lockfile, O_CREAT|O_RDWR|O_SHEXCL, S_IREAD|S_IWRITE); #else #if !defined(O_TEMPORARY) #if defined(_O_TEMPORARY) #define O_TEMPORARY _O_TEMPORARY #else #define O_TEMPORARY 0 #endif #endif fh=open(lockfile, O_CREAT|O_RDWR|O_EXCL|O_TEMPORARY, S_IREAD|S_IWRITE); #endif } if(fh < 0) { fprintf(stderr,"cannot create new lock file: %s\n",lockfile); fprintf(stderr,"lock file probably used by another process! exit...\n"); } return fh; } int FreelockFile(const char *lockfile, int fh) { if(fh > 0) close(fh); if(lockfile) remove(lockfile); return 0; } hs_addr *SelectPackAka(s_link *link) { if (link->hisPackAka.zone != 0) return &(link->hisPackAka); else return &(link->hisAka); } /*#if defined(HAS_spawnvp) && ( defined(__DOS__) || defined(__WIN32__) )*/ #ifndef cmdcall /* Workaround for command.com bug: cmdcall() */ #if !defined(P_WAIT) && defined(_P_WAIT) #define P_WAIT _P_WAIT #endif /* make parameters list for spawnvp(), spawnv() * Return malloc()'ed array of pointers to difference parts of one string, * 1st element points to string begin. * Return NULL if argument is NULL */ char **mk_lst(const char *a) { char *p, *q, **list=NULL, end=0, num=0; if(!a){ w_log(LL_ERR, "NULL command line!"); return NULL; } while (*a && isspace(*a)) a++; /* Left spaces trim */ p=q=sstrdup(a); while (*p && !end) { while (*q && !isspace(*q)) q++; if (*q=='\0') end=1; *q ='\0'; list = (char **) srealloc(list, ++num*sizeof(char*)); list[num-1]=(char*)p; if (!end) { p=q+1; while(isspace(*p)) p++; } q=p; } list = (char **) srealloc(list, (++num)*sizeof(char*)); list[num-1]=NULL; return list; } int cmdcall(const char *cmd) { int cmdexit=-1; char **list; if( (list = mk_lst(cmd)) ) { w_log(LL_DEBUGV, "spawnvp(P_WAIT, %s, ...)", list[0] ); #if defined(__WATCOMC__) || defined(__MINGW32__) cmdexit = spawnvp(P_WAIT, list[0], (const char * const *)list); #else cmdexit = spawnvp(P_WAIT, list[0], list); #endif nfree(list[0]); nfree(list); } return cmdexit; } #else /* int cmdcall(const char *cmd) { return system(cmd); } */ #endif