struct mbuf * m_get(size_t m_len, int type) { struct mbucket **mb; struct mbuf *bp; size_t size; if (type > MB_MAX) { log_Printf(LogERROR, "Bad mbuf type %d\n", type); type = MB_UNKNOWN; } if (m_len > M_MAXLEN || m_len == 0) { log_Printf(LogERROR, "Request for mbuf size %lu (\"%s\") denied !\n", (u_long)m_len, mbuftype(type)); AbortProgram(EX_OSERR); } mb = M_BUCKET(m_len); size = M_ROUNDUP(m_len); if (*mb) { /* We've got some free blocks of the right size */ bp = &(*mb)->u.m; if (--(*mb)->u.f.count == 0) *mb = (*mb)->u.f.next; else { ((struct mbucket *)((char *)*mb + size))->u.f.count = (*mb)->u.f.count; *mb = (struct mbucket *)((char *)*mb + size); (*mb)->u.f.next = NULL; } } else { /* * Allocate another chunk of mbufs, use the first and put the rest on * the free list */ *mb = (struct mbucket *)malloc(BUCKET_CHUNK * size); if (*mb == NULL) { log_Printf(LogALERT, "Failed to allocate memory (%lu)\n", (unsigned long)BUCKET_CHUNK * size); AbortProgram(EX_OSERR); } bp = &(*mb)->u.m; *mb = (struct mbucket *)((char *)*mb + size); (*mb)->u.f.count = BUCKET_CHUNK - 1; (*mb)->u.f.next = NULL; } mbuf_Mallocs++; memset(bp, '\0', sizeof(struct mbuf)); bp->m_size = size - sizeof *bp; bp->m_len = m_len; bp->m_type = type; MemMap[type].fragments++; MemMap[type].octets += bp->m_size; return bp; }
//------------------------------------------------------------------------ // основная программа //------------------------------------------------------------------------ void main(void) { WORD i; // зачистим экран монитора system("cls"); printf(" ******************************************\n"); printf(" Module E14-140 \n"); printf(" Console example for DLL dynamic loading \n"); printf(" ******************************************\n"); // динамическая загрузка библиотеки "Lusbapi.dll" pLoadDll = new TLoadDll("Lusbapi.dll"); if(!pLoadDll) AbortProgram(" Can't alloc 'TLoadDll' object!!!\n"); // проверим смогли ли мы загрузить библиотеку? if(!pLoadDll->GetDllHinstance()) AbortProgram(" 'Lusbapi.dll' Dynamic Loading --> Bad\n"); else printf(" 'Lusbapi.dll' Dynamic Loading --> OK\n"); // адрес функции получения версии библиотеки pGetDllVersion GetDllVersion = (pGetDllVersion)pLoadDll->CallGetDllVersion(); if(!GetDllVersion) AbortProgram(" Address of GetDllVersion() --> Bad\n"); else printf(" Address of GetDllVersion() --> OK\n"); // проверим версию используемой библиотеки Lusbapi.dll if((DllVersion = GetDllVersion()) != CURRENT_VERSION_LUSBAPI) { char String[128]; sprintf(String, " Lusbapi.dll Version Error!!!\n Current: %1u.%1u. Required: %1u.%1u", DllVersion >> 0x10, DllVersion & 0xFFFF, CURRENT_VERSION_LUSBAPI >> 0x10, CURRENT_VERSION_LUSBAPI & 0xFFFF); AbortProgram(String); }
struct device * udp_iov2device(int type, struct physical *p, struct iovec *iov, int *niov, int maxiov, int *auxfd, int *nauxfd) { if (type == UDP_DEVICE) { struct udpdevice *dev = (struct udpdevice *)iov[(*niov)++].iov_base; struct udpdevice *newdev; newdev = realloc(dev, sizeof *dev); /* Reduce to the correct size */ if (newdev == NULL) { log_Printf(LogALERT, "Failed to allocate memory: %d\n", (int)(sizeof *dev)); AbortProgram(EX_OSERR); } dev = newdev; /* Refresh function pointers etc */ memcpy(&dev->dev, &baseudpdevice, sizeof dev->dev); physical_SetupStack(p, dev->dev.name, PHYSICAL_FORCE_SYNC); return &dev->dev; } return NULL; }
struct device * i4b_iov2device(int type, struct physical *p, struct iovec *iov, int *niov, int maxiov, int *auxfd, int *nauxfd) { if (type == I4B_DEVICE) { struct i4bdevice *dev = (struct i4bdevice *)iov[(*niov)++].iov_base; dev = realloc(dev, sizeof *dev); /* Reduce to the correct size */ if (dev == NULL) { log_Printf(LogALERT, "Failed to allocate memory: %d\n", (int)(sizeof *dev)); AbortProgram(EX_OSERR); } /* Refresh function pointers etc */ memcpy(&dev->dev, &basei4bdevice, sizeof dev->dev); physical_SetupStack(p, dev->dev.name, PHYSICAL_NOFORCE); if (dev->Timer.state != TIMER_STOPPED) { dev->Timer.state = TIMER_STOPPED; p->handler = &dev->dev; /* For the benefit of StartTimer */ i4b_StartTimer(p); } return &dev->dev; } return NULL; }
struct device * ether_iov2device(int type, struct physical *p, struct iovec *iov, int *niov, int maxiov __unused, int *auxfd, int *nauxfd) { if (type == ETHER_DEVICE) { struct etherdevice *dev = (struct etherdevice *)iov[(*niov)++].iov_base; dev = realloc(dev, sizeof *dev); /* Reduce to the correct size */ if (dev == NULL) { log_Printf(LogALERT, "Failed to allocate memory: %d\n", (int)(sizeof *dev)); AbortProgram(EX_OSERR); } if (*nauxfd) { dev->cs = *auxfd; (*nauxfd)--; } else dev->cs = -1; /* Refresh function pointers etc */ memcpy(&dev->dev, &baseetherdevice, sizeof dev->dev); physical_SetupStack(p, dev->dev.name, PHYSICAL_FORCE_SYNCNOACF); return &dev->dev; } return NULL; }
static void ID0set0(void) { if (seteuid(euid) == -1) { log_Printf(LogERROR, "ID0set0: Unable to seteuid!\n"); AbortProgram(EX_NOPERM); } }
static void udp_device2iov(struct device *d, struct iovec *iov, int *niov, int maxiov, int *auxfd, int *nauxfd) { int sz = physical_MaxDeviceSize(); iov[*niov].iov_base = realloc(d, sz); if (iov[*niov].iov_base == NULL) { log_Printf(LogALERT, "Failed to allocate memory: %d\n", sz); AbortProgram(EX_OSERR); } iov[*niov].iov_len = sz; (*niov)++; }
//------------------------------------------------------------------------ // основная программа //------------------------------------------------------------------------ void main(void) { WORD i; SHORT DacSample; // сбросим флажок завершения потока ввода данных IsReadThreadComplete = false; // пока ничего не выделено под буфер данных ReadBuffer = NULL; // пока не создан поток ввода данных hReadThread = NULL; // пока откытого файла нет :( hFile = INVALID_HANDLE_VALUE; // сбросим флаг ошибок потока ввода данных ReadThreadErrorNumber = 0x0; // сбросим флажок завершения потока вывода данных IsWriteThreadComplete = false; // пока ничего не выделено под буфер данных WriteBuffer = NULL; // пока не создан поток ввода данных hWriteThread = NULL; // сбросим флаг ошибок потока ввода данных WriteThreadErrorNumber = 0x0; // зачистим экран монитора system("cls"); printf(" ************************************\n"); printf(" Module E14-440 \n"); printf(" Console example for ADC&DAC Streams \n"); printf(" ************************************\n\n"); // проверим версию используемой библиотеки Lusbapi.dll if((DllVersion = GetDllVersion()) != CURRENT_VERSION_LUSBAPI) { char String[128]; sprintf(String, " Lusbapi.dll Version Error!!!\n Current: %1u.%1u. Required: %1u.%1u", DllVersion >> 0x10, DllVersion & 0xFFFF, CURRENT_VERSION_LUSBAPI >> 0x10, CURRENT_VERSION_LUSBAPI & 0xFFFF); AbortProgram(String); }
static void i4b_device2iov(struct device *d, struct iovec *iov, int *niov, int maxiov, int *auxfd, int *nauxfd) { struct i4bdevice *dev = device2i4b(d); int sz = physical_MaxDeviceSize(); iov[*niov].iov_base = realloc(d, sz); if (iov[*niov].iov_base == NULL) { log_Printf(LogALERT, "Failed to allocate memory: %d\n", sz); AbortProgram(EX_OSERR); } iov[*niov].iov_len = sz; (*niov)++; if (dev->Timer.state != TIMER_STOPPED) { timer_Stop(&dev->Timer); dev->Timer.state = TIMER_RUNNING; } }
static void ether_device2iov(struct device *d, struct iovec *iov, int *niov, int maxiov __unused, int *auxfd, int *nauxfd) { struct etherdevice *dev; int sz = physical_MaxDeviceSize(); iov[*niov].iov_base = d = realloc(d, sz); if (d == NULL) { log_Printf(LogALERT, "Failed to allocate memory: %d\n", sz); AbortProgram(EX_OSERR); } iov[*niov].iov_len = sz; (*niov)++; dev = device2ether(d); if (dev->cs >= 0) { *auxfd = dev->cs; (*nauxfd)++; } }
//------------------------------------------------------------------------ // основная программа //------------------------------------------------------------------------ void main(void) { WORD i, j; // проинициализируем указатели и переменные for(i = 0x0; i < MaxVirtualSoltsQuantity; i++) { // обнулим указатель на интерфейс pModules[i] = NULL; // сбросим флажок прерывания потока сбора данных IsReadThreadTerminated[i] = false; // пока ничего не выделено под буфер данных Buffer[i] = NULL; // пока не создан поток ввода данных ReadThreadHandle[i] = NULL; // сбросим флаг ошибок потока ввода данных ReadThreadErrorNumber[i] = 0x0; } // зачищаем экран монитора clrscr(); printf(" ***********************************\n"); printf(" Module E14-440 \n"); printf(" Console example for Multi Modules \n"); printf(" ***********************************\n\n"); // инициализация критической секции InitializeCriticalSection(&cs); // проверим версию используемой библиотеки Lusbapi.dll if((DllVersion = GetDllVersion()) != CURRENT_VERSION_LUSBAPI) { char String[128]; sprintf(String, " Lusbapi.dll Version Error!!!\n Current: %1u.%1u. Required: %1u.%1u", DllVersion >> 0x10, DllVersion & 0xFFFF, CURRENT_VERSION_LUSBAPI >> 0x10, CURRENT_VERSION_LUSBAPI & 0xFFFF); AbortProgram(String); }
//------------------------------------------------------------------------ // основная программа //------------------------------------------------------------------------ void main(void) { WORD i; // зачистим экран монитора clrscr(); printf(" *************************************\n"); printf(" Module E14-140 \n"); printf(" Console example for DAC_SAMPLE Stream\n"); printf(" *************************************\n\n"); // проверим версию используемой библиотеки Lusbapi.dll if((DllVersion = GetDllVersion()) != CURRENT_VERSION_LUSBAPI) { char String[128]; sprintf(String, " Lusbapi.dll Version Error!!!\n Current: %1u.%1u. Required: %1u.%1u", DllVersion >> 0x10, DllVersion & 0xFFFF, CURRENT_VERSION_LUSBAPI >> 0x10, CURRENT_VERSION_LUSBAPI & 0xFFFF); AbortProgram(String); }
//------------------------------------------------------------------------ // основная программа //------------------------------------------------------------------------ void main(void) { WORD i; // зачистим экран монитора system("cls"); printf(" ***************************************\n"); printf(" Module E-310 \n"); printf(" Digital IO console example \n"); printf(" ***************************************\n\n"); // проверим версию используемой библиотеки Lusbapi.dll if((DllVersion = GetDllVersion()) != CURRENT_VERSION_LUSBAPI) { char String[128]; sprintf_s(String, " Lusbapi.dll Version Error!!!\n Current: %1u.%1u. Required: %1u.%1u", DllVersion >> 0x10, DllVersion & 0xFFFF, CURRENT_VERSION_LUSBAPI >> 0x10, CURRENT_VERSION_LUSBAPI & 0xFFFF); AbortProgram(String); }
int main(int argc, char **argv) { char *name; const char *lastlabel; int arg, f, holdfd[3], label; struct bundle *bundle; struct prompt *prompt; struct switches sw; probe_Init(); /* * We open 3 descriptors to ensure that STDIN_FILENO, STDOUT_FILENO and * STDERR_FILENO are always open. These are closed before DoLoop(), * but *after* we've avoided the possibility of erroneously closing * an important descriptor with close(STD{IN,OUT,ERR}_FILENO). */ if ((holdfd[0] = open(_PATH_DEVNULL, O_RDWR)) == -1) { fprintf(stderr, "Cannot open %s !\n", _PATH_DEVNULL); return 2; } for (f = 1; f < sizeof holdfd / sizeof *holdfd; f++) holdfd[f] = dup(holdfd[0]); name = strrchr(argv[0], '/'); log_Open(name ? name + 1 : argv[0]); #ifndef NONAT PacketAliasInit(); #endif label = ProcessArgs(argc, argv, &sw); /* * A FreeBSD & OpenBSD hack to dodge a bug in the tty driver that drops * output occasionally.... I must find the real reason some time. To * display the dodgy behaviour, comment out this bit, make yourself a large * routing table and then run ppp in interactive mode. The `show route' * command will drop chunks of data !!! */ if (sw.mode == PHYS_INTERACTIVE) { close(STDIN_FILENO); if (open(_PATH_TTY, O_RDONLY) != STDIN_FILENO) { fprintf(stderr, "Cannot open %s for input !\n", _PATH_TTY); return 2; } } /* Allow output for the moment (except in direct mode) */ if (sw.mode == PHYS_DIRECT) prompt = NULL; else SignalPrompt = prompt = prompt_Create(NULL, NULL, PROMPT_STD); ID0init(); if (ID0realuid() != 0) { char conf[200], *ptr; snprintf(conf, sizeof conf, "%s/%s", PPP_CONFDIR, CONFFILE); do { struct stat sb; if (stat(conf, &sb) == 0 && sb.st_mode & S_IWOTH) { log_Printf(LogALERT, "ppp: Access violation: Please protect %s\n", conf); return -1; } ptr = conf + strlen(conf)-2; while (ptr > conf && *ptr != '/') *ptr-- = '\0'; } while (ptr >= conf); } if (label < argc) for (arg = label; arg < argc; arg++) CheckLabel(argv[arg], prompt, sw.mode); else CheckLabel("default", prompt, sw.mode); if (!sw.quiet) prompt_Printf(prompt, "Working in %s mode\n", mode2Nam(sw.mode)); if ((bundle = bundle_Create(TUN_PREFIX, sw.mode, sw.unit)) == NULL) return EX_START; /* NOTE: We may now have changed argv[1] via a ``set proctitle'' */ if (prompt) { prompt->bundle = bundle; /* couldn't do it earlier */ if (!sw.quiet) prompt_Printf(prompt, "Using interface: %s\n", bundle->iface->name); } SignalBundle = bundle; bundle->NatEnabled = sw.nat; if (sw.nat) opt_enable(bundle, OPT_IFACEALIAS); if (system_Select(bundle, "default", CONFFILE, prompt, NULL) < 0) prompt_Printf(prompt, "Warning: No default entry found in config file.\n"); sig_signal(SIGHUP, CloseSession); sig_signal(SIGTERM, CloseSession); sig_signal(SIGINT, CloseConnection); sig_signal(SIGQUIT, CloseSession); sig_signal(SIGALRM, SIG_IGN); signal(SIGPIPE, SIG_IGN); if (sw.mode == PHYS_INTERACTIVE) sig_signal(SIGTSTP, TerminalStop); sig_signal(SIGUSR1, RestartServer); sig_signal(SIGUSR2, BringDownServer); lastlabel = argv[argc - 1]; for (arg = label; arg < argc; arg++) { /* In case we use LABEL or ``set enddisc label'' */ bundle_SetLabel(bundle, lastlabel); system_Select(bundle, argv[arg], CONFFILE, prompt, NULL); } if (label < argc) /* In case the last label did a ``load'' */ bundle_SetLabel(bundle, lastlabel); if (sw.mode == PHYS_AUTO && ncprange_family(&bundle->ncp.ipcp.cfg.peer_range) == AF_UNSPEC) { prompt_Printf(prompt, "You must ``set ifaddr'' with a peer address " "in auto mode.\n"); AbortProgram(EX_START); } if (sw.mode != PHYS_INTERACTIVE) { if (sw.mode != PHYS_DIRECT) { if (!sw.fg) { int bgpipe[2]; pid_t bgpid; if (sw.mode == PHYS_BACKGROUND && pipe(bgpipe)) { log_Printf(LogERROR, "pipe: %s\n", strerror(errno)); AbortProgram(EX_SOCK); } bgpid = fork(); if (bgpid == -1) { log_Printf(LogERROR, "fork: %s\n", strerror(errno)); AbortProgram(EX_SOCK); } if (bgpid) { char c = EX_NORMAL; int ret; if (sw.mode == PHYS_BACKGROUND) { close(bgpipe[1]); BGPid = bgpid; /* If we get a signal, kill the child */ signal(SIGHUP, KillChild); signal(SIGTERM, KillChild); signal(SIGINT, KillChild); signal(SIGQUIT, KillChild); /* Wait for our child to close its pipe before we exit */ while ((ret = read(bgpipe[0], &c, 1)) == 1) { switch (c) { case EX_NORMAL: if (!sw.quiet) { prompt_Printf(prompt, "PPP enabled\n"); log_Printf(LogPHASE, "Parent: PPP enabled\n"); } break; case EX_REDIAL: if (!sw.quiet) prompt_Printf(prompt, "Attempting redial\n"); continue; case EX_RECONNECT: if (!sw.quiet) prompt_Printf(prompt, "Attempting reconnect\n"); continue; default: prompt_Printf(prompt, "Child failed (%s)\n", ex_desc((int)c)); log_Printf(LogPHASE, "Parent: Child failed (%s)\n", ex_desc((int) c)); } break; } if (ret != 1) { prompt_Printf(prompt, "Child exit, no status.\n"); log_Printf(LogPHASE, "Parent: Child exit, no status.\n"); } close(bgpipe[0]); } return c; } else if (sw.mode == PHYS_BACKGROUND) { close(bgpipe[0]); bundle->notify.fd = bgpipe[1]; } bundle_ChangedPID(bundle); bundle_LockTun(bundle); /* we have a new pid */ } /* -auto, -dedicated, -ddial, -foreground & -background */ prompt_Destroy(prompt, 0); close(STDOUT_FILENO); close(STDERR_FILENO); close(STDIN_FILENO); if (!sw.fg) setsid(); } else { /* -direct - STDIN_FILENO gets used by physical_Open */ prompt_TtyInit(NULL); close(STDOUT_FILENO); close(STDERR_FILENO); } } else { /* -interactive */ close(STDERR_FILENO); prompt_TtyInit(prompt); prompt_TtyCommandMode(prompt); prompt_Required(prompt); } /* We can get rid of these now */ for (f = 0; f < sizeof holdfd / sizeof *holdfd; f++) close(holdfd[f]); log_Printf(LogPHASE, "PPP Started (%s mode).\n", mode2Nam(sw.mode)); DoLoop(bundle); AbortProgram(EX_NORMAL); return EX_NORMAL; }
int physical2iov(struct physical *p, struct iovec *iov, int *niov, int maxiov, int *auxfd, int *nauxfd) { struct device *h; int sz; h = NULL; if (p) { hdlc_StopTimer(&p->hdlc); lqr_StopTimer(p); timer_Stop(&p->link.lcp.fsm.FsmTimer); timer_Stop(&p->link.ccp.fsm.FsmTimer); timer_Stop(&p->link.lcp.fsm.OpenTimer); timer_Stop(&p->link.ccp.fsm.OpenTimer); timer_Stop(&p->link.lcp.fsm.StoppedTimer); timer_Stop(&p->link.ccp.fsm.StoppedTimer); if (p->handler) { h = p->handler; p->handler = (struct device *)(long)p->handler->type; } if (Enabled(p->dl->bundle, OPT_KEEPSESSION) || tcgetpgrp(p->fd) == getpgrp()) p->session_owner = getpid(); /* So I'll eventually get HUP'd */ else p->session_owner = (pid_t)-1; timer_Stop(&p->link.stats.total.Timer); } if (*niov + 2 >= maxiov) { log_Printf(LogERROR, "physical2iov: No room for physical + throughput" " + device !\n"); if (p) free(p); return -1; } iov[*niov].iov_base = (void *)p; iov[*niov].iov_len = sizeof *p; (*niov)++; iov[*niov].iov_base = p ? (void *)p->link.stats.total.in.SampleOctets : NULL; iov[*niov].iov_len = SAMPLE_PERIOD * sizeof(long long); (*niov)++; iov[*niov].iov_base = p ? (void *)p->link.stats.total.out.SampleOctets : NULL; iov[*niov].iov_len = SAMPLE_PERIOD * sizeof(long long); (*niov)++; sz = physical_MaxDeviceSize(); if (p) { if (h && h->device2iov) (*h->device2iov)(h, iov, niov, maxiov, auxfd, nauxfd); else { if ((iov[*niov].iov_base = malloc(sz)) == NULL) { log_Printf(LogALERT, "physical2iov: Out of memory (%d bytes)\n", sz); AbortProgram(EX_OSERR); } if (h) memcpy(iov[*niov].iov_base, h, sizeof *h); iov[*niov].iov_len = sz; (*niov)++; } } else { iov[*niov].iov_base = NULL; iov[*niov].iov_len = sz; (*niov)++; } return p ? p->fd : 0; }