diff options
Diffstat (limited to 'usr.sbin/ppp/main.c')
-rw-r--r-- | usr.sbin/ppp/main.c | 104 |
1 files changed, 66 insertions, 38 deletions
diff --git a/usr.sbin/ppp/main.c b/usr.sbin/ppp/main.c index b2cffe3..64b8483 100644 --- a/usr.sbin/ppp/main.c +++ b/usr.sbin/ppp/main.c @@ -33,6 +33,7 @@ #include <paths.h> #include <signal.h> #include <stdio.h> +#include <stdlib.h> #include <string.h> #include <sys/time.h> #include <termios.h> @@ -185,39 +186,66 @@ Usage(void) #ifndef NOALIAS " [-nat]" #endif - " [system ...]\n"); + " [-quiet] [-unit N] [system ...]\n"); exit(EX_START); } +struct switches { + unsigned nat : 1; + unsigned fg : 1; + unsigned quiet : 1; + int mode; + int unit; +}; + static int -ProcessArgs(int argc, char **argv, int *mode, int *nat, int *fg, int *quiet) +ProcessArgs(int argc, char **argv, struct switches *sw) { int optc, newmode, arg; char *cp; optc = 0; - *mode = PHYS_INTERACTIVE; - *nat = 0; - *fg = 0; - *quiet = 0; + memset(sw, '\0', sizeof *sw); + sw->mode = PHYS_INTERACTIVE; + sw->unit = -1; + for (arg = 1; arg < argc && *argv[arg] == '-'; arg++, optc++) { cp = argv[arg] + 1; newmode = Nam2mode(cp); switch (newmode) { case PHYS_NONE: - if (strcmp(cp, "nat") == 0 || strcmp(cp, "alias") == 0) { + if (strcmp(cp, "nat") == 0) { #ifdef NONAT - log_Printf(LogWARN, "Cannot load libalias (compiled out)\n"); + log_Printf(LogWARN, "%s ignored: NAT is compiled out\n", argv[arg]); #else - *nat = 1; + sw->nat = 1; #endif optc--; /* this option isn't exclusive */ + } else if (strcmp(cp, "alias") == 0) { +#ifdef NONAT + log_Printf(LogWARN, "%s ignored: NAT is compiled out\n", argv[arg]); + fprintf(stderr, "%s ignored: NAT is compiled out\n", argv[arg]); +#else + log_Printf(LogWARN, "%s is depricated\n", argv[arg]); + fprintf(stderr, "%s is depricated\n", argv[arg]); + sw->nat = 1; +#endif + optc--; /* this option isn't exclusive */ + } else if (strncmp(cp, "unit", 4) == 0) { + if (cp[4] == '\0') { + if (++arg == argc) { + fprintf(stderr, "-unit: Expected unit number\n"); + Usage(); + } else + sw->unit = atoi(argv[arg]); + } else + sw->unit = atoi(cp + 4); } else if (strcmp(cp, "quiet") == 0) { - *quiet = 1; + sw->quiet = 1; optc--; /* this option isn't exclusive */ } else if (strcmp(cp, "foreground") == 0) { - *mode = PHYS_BACKGROUND; /* Kinda like background mode */ - *fg = 1; + sw->mode = PHYS_BACKGROUND; /* Kinda like background mode */ + sw->fg = 1; } else Usage(); break; @@ -227,7 +255,7 @@ ProcessArgs(int argc, char **argv, int *mode, int *nat, int *fg, int *quiet) break; default: - *mode = newmode; + sw->mode = newmode; } } @@ -236,7 +264,7 @@ ProcessArgs(int argc, char **argv, int *mode, int *nat, int *fg, int *quiet) exit(EX_START); } - if (*mode == PHYS_AUTO && arg == argc) { + if (sw->mode == PHYS_AUTO && arg == argc) { fprintf(stderr, "A system must be specified in auto mode.\n"); exit(EX_START); } @@ -265,9 +293,10 @@ main(int argc, char **argv) { char *name; const char *lastlabel; - int nfds, mode, nat, fg, quiet, label, arg; + int nfds, label, arg; struct bundle *bundle; struct prompt *prompt; + struct switches sw; nfds = getdtablesize(); if (nfds >= FD_SETSIZE) @@ -285,7 +314,7 @@ main(int argc, char **argv) #ifndef NONAT PacketAliasInit(); #endif - label = ProcessArgs(argc, argv, &mode, &nat, &fg, &quiet); + label = ProcessArgs(argc, argv, &sw); /* * A FreeBSD & OpenBSD hack to dodge a bug in the tty driver that drops @@ -294,7 +323,7 @@ main(int argc, char **argv) * routing table and then run ppp in interactive mode. The `show route' * command will drop chunks of data !!! */ - if (mode == PHYS_INTERACTIVE) { + 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); @@ -303,7 +332,7 @@ main(int argc, char **argv) } /* Allow output for the moment (except in direct mode) */ - if (mode == PHYS_DIRECT) + if (sw.mode == PHYS_DIRECT) prompt = NULL; else SignalPrompt = prompt = prompt_Create(NULL, NULL, PROMPT_STD); @@ -329,28 +358,27 @@ main(int argc, char **argv) if (label < argc) for (arg = label; arg < argc; arg++) - CheckLabel(argv[arg], prompt, mode); + CheckLabel(argv[arg], prompt, sw.mode); else - CheckLabel("default", prompt, mode); + CheckLabel("default", prompt, sw.mode); - if (!quiet) - prompt_Printf(prompt, "Working in %s mode\n", mode2Nam(mode)); + if (!sw.quiet) + prompt_Printf(prompt, "Working in %s mode\n", mode2Nam(sw.mode)); - if ((bundle = bundle_Create(TUN_PREFIX, mode, (const char **)argv)) == NULL) { - log_Printf(LogWARN, "bundle_Create: %s\n", strerror(errno)); + if ((bundle = bundle_Create(TUN_PREFIX, sw.mode, sw.unit, + (const char **)argv)) == 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 (!quiet) + if (!sw.quiet) prompt_Printf(prompt, "Using interface: %s\n", bundle->iface->name); } SignalBundle = bundle; - bundle->NatEnabled = nat; - if (nat) + bundle->NatEnabled = sw.nat; + if (sw.nat) bundle->cfg.opt |= OPT_IFACEALIAS; if (system_Select(bundle, "default", CONFFILE, prompt, NULL) < 0) @@ -363,7 +391,7 @@ main(int argc, char **argv) sig_signal(SIGALRM, SIG_IGN); signal(SIGPIPE, SIG_IGN); - if (mode == PHYS_INTERACTIVE) + if (sw.mode == PHYS_INTERACTIVE) sig_signal(SIGTSTP, TerminalStop); sig_signal(SIGUSR2, BringDownServer); @@ -380,20 +408,20 @@ main(int argc, char **argv) /* In case the last label did a ``load'' */ bundle_SetLabel(bundle, lastlabel); - if (mode == PHYS_AUTO && + if (sw.mode == PHYS_AUTO && bundle->ncp.ipcp.cfg.peer_range.ipaddr.s_addr == INADDR_ANY) { prompt_Printf(prompt, "You must ``set ifaddr'' with a peer address " "in auto mode.\n"); AbortProgram(EX_START); } - if (mode != PHYS_INTERACTIVE) { - if (mode != PHYS_DIRECT) { - if (!fg) { + if (sw.mode != PHYS_INTERACTIVE) { + if (sw.mode != PHYS_DIRECT) { + if (!sw.fg) { int bgpipe[2]; pid_t bgpid; - if (mode == PHYS_BACKGROUND && pipe(bgpipe)) { + if (sw.mode == PHYS_BACKGROUND && pipe(bgpipe)) { log_Printf(LogERROR, "pipe: %s\n", strerror(errno)); AbortProgram(EX_SOCK); } @@ -407,7 +435,7 @@ main(int argc, char **argv) if (bgpid) { char c = EX_NORMAL; - if (mode == PHYS_BACKGROUND) { + if (sw.mode == PHYS_BACKGROUND) { close(bgpipe[1]); BGPid = bgpid; /* If we get a signal, kill the child */ @@ -431,7 +459,7 @@ main(int argc, char **argv) close(bgpipe[0]); } return c; - } else if (mode == PHYS_BACKGROUND) { + } else if (sw.mode == PHYS_BACKGROUND) { close(bgpipe[0]); bundle->notify.fd = bgpipe[1]; } @@ -444,7 +472,7 @@ main(int argc, char **argv) close(STDOUT_FILENO); close(STDERR_FILENO); close(STDIN_FILENO); - if (!fg) + if (!sw.fg) setsid(); } else { /* -direct - STDIN_FILENO gets used by physical_Open */ @@ -460,7 +488,7 @@ main(int argc, char **argv) prompt_Required(prompt); } - log_Printf(LogPHASE, "PPP Started (%s mode).\n", mode2Nam(mode)); + log_Printf(LogPHASE, "PPP Started (%s mode).\n", mode2Nam(sw.mode)); DoLoop(bundle); AbortProgram(EX_NORMAL); |