1149 lines
26 KiB
C
1149 lines
26 KiB
C
/* main.c */
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#define _main_c_
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#define FTP_VERSION "1.9.4 (April 15, 1995)"
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/* #define BETA 1 */ /* If defined, it prints a little warning message. */
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#include "sys.h"
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#include <sys/stat.h>
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#include <arpa/ftp.h>
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#include <setjmp.h>
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#include <signal.h>
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#include <errno.h>
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#include <ctype.h>
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#include <netdb.h>
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#include <pwd.h>
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#ifdef SYSLOG
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# include <syslog.h>
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#endif
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#if defined(CURSES) && !defined(NO_CURSES_H)
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# undef HZ /* Collides with HaZeltine ! */
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# include <curses.h>
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# ifdef TERMH
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# include <term.h>
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# endif
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#endif /* CURSES */
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#include "util.h"
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#include "cmds.h"
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#include "main.h"
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#include "ftp.h"
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#include "ftprc.h"
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#include "open.h"
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#include "set.h"
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#include "defaults.h"
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#include "copyright.h"
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/* main.c globals */
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int slrflag;
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int fromatty; /* input is from a terminal */
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int toatty; /* output is to a terminal */
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int doing_script; /* is a file being <redirected to me? */
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char *altarg; /* argv[1] with no shell-like preprocessing */
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struct servent serv; /* service spec for tcp/ftp */
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static char pad2a[8] = "Pad 2a"; /* SunOS overwrites jmp_bufs... */
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jmp_buf toplevel; /* non-local goto stuff for cmd scanner */
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static char pad2b[8] = "Pad 2b";
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char *line; /* input line buffer */
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char *stringbase; /* current scan point in line buffer */
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char *argbuf; /* argument storage buffer */
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char *argbase; /* current storage point in arg buffer */
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int margc; /* count of arguments on input line */
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char *margv[20]; /* args parsed from input line */
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struct userinfo uinfo; /* a copy of their pwent really */
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int ansi_escapes; /* for fancy graphics */
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int startup_msg = 1; /* TAR: display message on startup? */
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int ignore_rc; /* are we supposed to ignore the netrc */
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string progname; /* simple filename */
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string prompt, prompt2; /* shell prompt string */
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string anon_password; /* most likely your email address */
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string pager; /* program to browse text files */
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string version = FTP_VERSION;
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long eventnumber; /* number of commands we've done */
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FILE *logf = NULL; /* log user activity */
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longstring logfname; /* name of the logfile */
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long logsize = 4096L; /* max log size. 0 == no limit */
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int percent_flags; /* "%" in prompt string? */
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int at_flags; /* "@" in prompt string? */
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string mail_path; /* your mailbox */
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time_t mbox_time; /* last modified time of mbox */
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size_t epromptlen; /* length of the last line of the
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* prompt as it will appear on screen,
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* (i.e. no invis escape codes).
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*/
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#ifdef HPUX
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char *tcap_normal = "\033&d@"; /* Default ANSI escapes */
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char *tcap_boldface = "\033&dH"; /* Half Bright */
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char *tcap_underline = "\033&dD";
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char *tcap_reverse = "\033&dB";
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#else
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#ifdef NO_FORMATTING
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char *tcap_normal = "";
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char *tcap_boldface = "";
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char *tcap_underline = "";
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char *tcap_reverse = "";
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#else
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char *tcap_normal = "\033[0m"; /* Default ANSI escapes */
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char *tcap_boldface = "\033[1m";
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char *tcap_underline = "\033[4m";
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char *tcap_reverse = "\033[7m";
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#endif
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#endif
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size_t tcl_normal = 4, /* lengths of the above strings. */
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tcl_bold = 4,
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tcl_uline = 4,
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tcl_rev = 4;
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#ifdef CURSES
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static char tcbuf[2048];
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#endif
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/* main.c externs */
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extern int debug, verbose, mprompt, passivemode;
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extern int options, cpend, data, connected, logged_in;
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extern int curtype, macnum, remote_is_unix;
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extern FILE *cout;
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extern struct cmd cmdtab[];
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extern str32 curtypename;
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extern char *macbuf;
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extern char *reply_string;
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extern char *short_verbose_msgs[4];
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extern string vstr;
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extern Hostname hostname;
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extern longstring cwd, lcwd, recent_file;
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extern int Optind;
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extern char *Optarg;
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#ifdef GATEWAY
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extern string gate_login;
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#endif
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void main(int argc, char **argv)
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{
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register char *cp;
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int top, opt, openopts = 0;
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string tmp, oline;
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struct servent *sptr;
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if ((cp = rindex(argv[0], '/'))) cp++;
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else cp = argv[0];
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(void) Strncpy(progname, cp);
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sptr = getservbyname("ftp", "tcp");
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if (sptr == 0) fatal("ftp/tcp: unknown service");
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serv = *sptr;
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if (init_arrays()) /* Reserve large blocks of memory now */
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fatal("could not reserve large amounts of memory.");
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#ifdef GZCAT
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if ((GZCAT == (char *)1) || (GZCAT == (char *)0)) {
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(void) fprintf(stderr,
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"You compiled the program with -DGZCAT, but you must specify the path with it!\n\
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Re-compile, this time with -DGZCAT=\\\"/path/to/gzcat\\\".\n");
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exit(1);
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}
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#endif
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#ifdef ZCAT
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if ((ZCAT == (char *)1) || (ZCAT == (char *)0)) {
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(void) fprintf(stderr,
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"You compiled the program with -DZCAT, but you must specify the path with it!\n\
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Re-compile, this time with -DZCAT=\\\"/path/to/zcat\\\".\n");
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exit(1);
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}
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#endif
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/*
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* Set up defaults for FTP.
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*/
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mprompt = dMPROMPT;
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debug = dDEBUG;
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verbose = dVERBOSE;
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passivemode = dPASSIVE;
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(void) Strncpy(vstr, short_verbose_msgs[verbose+1]);
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(void) Strncpy(curtypename, dTYPESTR);
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curtype = dTYPE;
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(void) Strncpy(prompt, dPROMPT);
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#ifdef GATEWAY
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(void) Strncpy(gate_login, dGATEWAY_LOGIN);
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#endif
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#ifdef SOCKS
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SOCKSinit("ncftp");
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#endif
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/* Setup our pager variable, before we run through the rc,
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which may change it. */
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set_pager(getenv("PAGER"), 0);
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#ifdef CURSES
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ansi_escapes = 1;
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termcap_init();
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#else
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ansi_escapes = 0;
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if ((cp = getenv("TERM")) != NULL) {
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if ((*cp == 'v' && cp[1] == 't') /* vt100, vt102, ... */
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|| (strcmp(cp, "xterm") == 0))
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ansi_escapes = 1;
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}
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#endif
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(void) getuserinfo();
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/* Init the mailbox checking code. */
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(void) time(&mbox_time);
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(void) Strncpy(anon_password, uinfo.username);
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if (getlocalhostname(uinfo.hostname, sizeof(uinfo.hostname)) == 0) {
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(void) Strncat(anon_password, "@");
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(void) Strncat(anon_password, uinfo.hostname);
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}
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#if dLOGGING
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(void) Strncpy(logfname, dLOGNAME);
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(void) LocalDotPath(logfname);
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#else
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*logfname = 0;
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#endif
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(void) Strncpy(recent_file, dRECENTF);
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(void) LocalDotPath(recent_file);
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(void) get_cwd(lcwd, (int) sizeof(lcwd));
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#ifdef SYSLOG
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# ifdef LOG_LOCAL3
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openlog ("NcFTP", LOG_PID, LOG_LOCAL3);
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# else
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openlog ("NcFTP", LOG_PID);
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# endif
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#endif /* SYSLOG */
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ignore_rc = 0;
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(void) strcpy(oline, "open ");
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while ((opt = Getopt(argc, argv, "D:V:INPRHaicmup:rd:g:")) >= 0) {
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switch(opt) {
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case 'a':
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case 'c':
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case 'i':
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case 'm':
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case 'u':
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case 'r':
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(void) sprintf(tmp, "-%c ", opt);
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goto cattmp;
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case 'p':
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case 'd':
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case 'g':
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(void) sprintf(tmp, "-%c %s ", opt, Optarg);
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cattmp:
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(void) strcat(oline, tmp);
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openopts++;
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break;
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case 'D':
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debug = atoi(Optarg);
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break;
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case 'V':
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set_verbose(Optarg, 0);
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break;
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case 'I':
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mprompt = !mprompt;
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break;
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case 'N':
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++ignore_rc;
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break;
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case 'P':
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passivemode = !passivemode;
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break;
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case 'H':
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(void) show_version(0, NULL);
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exit (0);
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default:
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usage:
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(void) fprintf(stderr, "Usage: %s [program options] [[open options] site.to.open[:path]]\n\
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Program Options:\n\
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-D x : Set debugging level to x (a number).\n\
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-H : Show version and compilation information.\n\
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-I : Toggle interactive (mprompt) mode.\n\
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-N : Toggle reading of the .netrc/.ncftprc.\n\
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-P : Toggle passive mode ftp (for use behind firewalls).\n\
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-V x : Set verbosity to level x (-1,0,1,2).\n\
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Open Options:\n\
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-a : Open anonymously (this is the default).\n\
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-u : Open, specify user/password.\n\
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-i : Ignore machine entry in your .netrc.\n\
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-p N : Use port #N for connection.\n\
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-r : \"Redial\" until connected.\n\
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-d N : Redial, pausing N seconds between tries.\n\
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-g N : Redial, giving up after N tries.\n\
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:path : ``Colon-mode:'' If \"path\" is a file, it opens site, retrieves\n\
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file \"path,\" then exits; if \"path\" is a remote directory,\n\
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it opens site then starts you in that directory..\n\
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-c : If you're using colon-mode with a file path, this will cat the\n\
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file to stdout instead of storing on disk.\n\
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-m : Just like -c, only it pipes the file to your $PAGER.\n\
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Examples:\n\
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ncftp ftp.unl.edu:/pub/README (just fetches README then quits)\n\
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ncftp (just enters ncftp command shell)\n\
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ncftp -V -u ftp.unl.edu\n\
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ncftp -c ftp.unl.edu:/pub/README (cats README to stdout then quits)\n\
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ncftp -D -r -d 120 -g 10 ftp.unl.edu\n", progname);
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exit(1);
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}
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}
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cp = argv[Optind]; /* the site to open. */
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if (cp == NULL) {
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if (openopts)
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goto usage;
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} else
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(void) strcat(oline, cp);
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if (ignore_rc <= 0)
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(void) thrash_rc();
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if (ignore_rc <= 1)
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ReadRecentSitesFile();
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(void) fix_options(); /* adjust "options" according to "debug" */
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fromatty = doing_script = isatty(0);
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toatty = isatty(1);
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(void) UserLoggedIn(); /* Init parent-death detection. */
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cpend = 0; /* no pending replies */
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if (*logfname)
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logf = fopen (logfname, "a");
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/* The user specified a host, maybe in 'colon-mode', on the command
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* line. Open it now...
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*/
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if (argc > 1 && cp) {
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if (setjmp(toplevel))
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exit(0);
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(void) Signal(SIGINT, intr);
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(void) Signal(SIGPIPE, lostpeer);
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(void) strcpy(line, oline);
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makeargv();
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/* setpeer uses this to tell if it was called from the cmd-line. */
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eventnumber = 0L;
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if (cmdOpen(margc, margv) != NOERR) {
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exit(1);
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}
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}
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eventnumber = 1L;
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(void) init_prompt();
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if (startup_msg) { /* TAR */
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if (ansi_escapes) {
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#ifdef BETA
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# define BETA_MSG "\n\
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For testing purposes only. Do not re-distribute or subject to novice users."
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#else
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# define BETA_MSG ""
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#endif
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#ifndef CURSES
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(void) printf("%sNcFTP %s by Mike Gleason, NCEMRSoft.%s%s%s%s\n",
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tcap_boldface,
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FTP_VERSION,
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tcap_normal,
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tcap_reverse,
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BETA_MSG,
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tcap_normal
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);
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#else
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char vis[256];
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(void) sprintf(vis, "%sNcFTP %s by Mike Gleason, NCEMRSoft.%s%s%s%s\n",
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tcap_boldface,
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FTP_VERSION,
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tcap_normal,
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tcap_reverse,
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BETA_MSG,
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tcap_normal
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);
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tcap_put(vis);
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#endif /* !CURSES */
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}
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else
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(void) printf("%s%s\n", FTP_VERSION, BETA_MSG);
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} /* TAR */
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if (NOT_VQUIET)
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PrintTip();
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top = setjmp(toplevel) == 0;
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if (top) {
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(void) Signal(SIGINT, intr);
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(void) Signal(SIGPIPE, lostpeer);
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}
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for (;;) {
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if (cmdscanner(top) && !fromatty)
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exit(1);
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top = 1;
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}
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} /* main */
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/*ARGSUSED*/
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void intr SIG_PARAMS
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{
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dbprintf("intr()\n");
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(void) Signal(SIGINT, intr);
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(void) longjmp(toplevel, 1);
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} /* intr */
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int getuserinfo(void)
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{
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register char *cp;
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struct passwd *pw;
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string str;
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extern char *home; /* for glob.c */
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home = uinfo.homedir; /* for glob.c */
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pw = NULL;
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#ifdef USE_GETPWUID
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/* Try to use getpwuid(), but if we have to, fall back to getpwnam(). */
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pw = getpwuid(getuid());
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if (pw == NULL) {
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/* Oh well, try getpwnam() then. */
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cp = getlogin();
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if (cp == NULL) {
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cp = getenv("LOGNAME");
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if (cp == NULL)
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cp = getenv("USER");
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}
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if (cp != NULL)
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pw = getpwnam(cp);
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}
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#else
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/* Try to use getpwnam(), but if we have to, fall back to getpwuid(). */
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cp = getlogin();
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if (cp == NULL) {
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cp = getenv("LOGNAME");
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if (cp == NULL)
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cp = getenv("USER");
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}
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if (cp != NULL)
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pw = getpwnam(cp);
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if (pw == NULL) {
|
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/* Oh well, try getpwuid() then. */
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pw = getpwuid(getuid());
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}
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#endif
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if (pw != NULL) {
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uinfo.uid = pw->pw_uid;
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(void) Strncpy(uinfo.username, pw->pw_name);
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(void) Strncpy(uinfo.shell, pw->pw_shell);
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if ((cp = getenv("HOME")) != NULL)
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(void) Strncpy(uinfo.homedir, cp);
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else
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(void) Strncpy(uinfo.homedir, pw->pw_dir);
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cp = getenv("MAIL");
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if (cp != NULL) {
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(void) Strncpy(str, cp);
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} else {
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/* Check a few typical mail directories.
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* If we don't find it, too bad. Checking for new mail
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* isn't very important anyway.
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*/
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(void) sprintf(str, "/usr/spool/mail/%s", uinfo.username);
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if (access(str, 0) < 0) {
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(void) sprintf(str, "/var/mail/%s", uinfo.username);
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}
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}
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cp = str;
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if (access(cp, 0) < 0) {
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mail_path[0] = 0;
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} else {
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/*
|
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* mbox variable may be like MAIL=(28 /usr/mail/me /usr/mail/you),
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* so try to find the first mail path.
|
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*/
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while ((*cp != '/') && (*cp != 0))
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cp++;
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(void) Strncpy(mail_path, cp);
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if ((cp = index(mail_path, ' ')) != NULL)
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*cp = '\0';
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}
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return (0);
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} else {
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PERROR("getuserinfo", "Could not get your passwd entry!");
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(void) Strncpy(uinfo.shell, "/bin/sh");
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(void) Strncpy(uinfo.homedir, "."); /* current directory */
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uinfo.uid = 999;
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if ((cp = getenv("HOME")) != NULL)
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(void) Strncpy(uinfo.homedir, cp);
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mail_path[0] = 0;
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return (-1);
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}
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} /* getuserinfo */
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|
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int init_arrays(void)
|
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{
|
|
if ((macbuf = (char *) malloc((size_t)(MACBUFLEN))) == NULL)
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goto barf;
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if ((line = (char *) malloc((size_t)(CMDLINELEN))) == NULL)
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goto barf;
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if ((argbuf = (char *) malloc((size_t)(CMDLINELEN))) == NULL)
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goto barf;
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if ((reply_string = (char *) malloc((size_t)(RECEIVEDLINELEN))) == NULL)
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goto barf;
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|
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*macbuf = '\0';
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init_transfer_buffer();
|
|
return (0);
|
|
barf:
|
|
return (-1);
|
|
} /* init_arrays */
|
|
|
|
|
|
|
|
#ifndef BUFSIZ
|
|
#define BUFSIZ 512
|
|
#endif
|
|
|
|
void init_transfer_buffer(void)
|
|
{
|
|
extern char *xferbuf;
|
|
extern size_t xferbufsize;
|
|
|
|
/* Make sure we use a multiple of BUFSIZ for efficiency. */
|
|
xferbufsize = (MAX_XFER_BUFSIZE / BUFSIZ) * BUFSIZ;
|
|
while (1) {
|
|
xferbuf = (char *) malloc (xferbufsize);
|
|
if (xferbuf != NULL || xferbufsize < 1024)
|
|
break;
|
|
xferbufsize >>= 2;
|
|
}
|
|
|
|
if (xferbuf != NULL) return;
|
|
fatal("out of memory for transfer buffer.");
|
|
} /* init_transfer_buffer */
|
|
|
|
|
|
|
|
|
|
void init_prompt(void)
|
|
{
|
|
register char *cp;
|
|
|
|
percent_flags = at_flags = 0;
|
|
for (cp = prompt; *cp; cp++) {
|
|
if (*cp == '%') percent_flags = 1;
|
|
else if (*cp == '@') at_flags = 1;
|
|
}
|
|
} /* init_prompt */
|
|
|
|
|
|
|
|
/*ARGSUSED*/
|
|
void lostpeer SIG_PARAMS
|
|
{
|
|
if (connected) {
|
|
close_streams(1);
|
|
if (data >= 0) {
|
|
(void) shutdown(data, 1+1);
|
|
(void) close(data);
|
|
data = -1;
|
|
}
|
|
connected = 0;
|
|
}
|
|
if (connected) {
|
|
close_streams(1);
|
|
connected = 0;
|
|
}
|
|
hostname[0] = cwd[0] = 0;
|
|
logged_in = macnum = 0;
|
|
} /* lostpeer */
|
|
|
|
|
|
/*
|
|
* Command parser.
|
|
*/
|
|
int cmdscanner(int top)
|
|
{
|
|
register struct cmd *c;
|
|
int cmd_status, rcode = 0;
|
|
|
|
if (!top)
|
|
(void) putchar('\n');
|
|
for (;;) {
|
|
if (!doing_script && !UserLoggedIn())
|
|
(void) quit(0, NULL);
|
|
if (Gets(strprompt(), line, (size_t)CMDLINELEN) == NULL) {
|
|
(void) quit(0, NULL); /* control-d */
|
|
}
|
|
eventnumber++;
|
|
dbprintf("\"%s\"\n", line);
|
|
(void) makeargv();
|
|
if (margc == 0) {
|
|
continue; /* blank line... */
|
|
}
|
|
c = getcmd(margv[0]);
|
|
if (c == (struct cmd *) -1) {
|
|
(void) printf("?Ambiguous command\n");
|
|
continue;
|
|
}
|
|
if (c == 0) {
|
|
if (!implicit_cd(margv[0]))
|
|
(void) printf("?Invalid command\n");
|
|
continue;
|
|
}
|
|
if (c->c_conn && !connected) {
|
|
(void) printf ("Not connected.\n");
|
|
continue;
|
|
}
|
|
cmd_status = (*c->c_handler)(margc, margv);
|
|
if (cmd_status == USAGE)
|
|
cmd_usage(c);
|
|
else if (cmd_status == CMDERR)
|
|
rcode = 1;
|
|
if (c->c_handler != help)
|
|
break;
|
|
}
|
|
(void) Signal(SIGINT, intr);
|
|
(void) Signal(SIGPIPE, lostpeer);
|
|
return rcode;
|
|
} /* cmdscanner */
|
|
|
|
|
|
|
|
|
|
char *strprompt(void)
|
|
{
|
|
time_t tyme;
|
|
char eventstr[8];
|
|
char *dname, *lastlinestart;
|
|
register char *p, *q;
|
|
string str;
|
|
int flag;
|
|
|
|
if (at_flags == 0 && percent_flags == 0) {
|
|
epromptlen = strlen(prompt);
|
|
return (prompt); /* But don't overwrite it! */
|
|
}
|
|
epromptlen = 0;
|
|
lastlinestart = prompt2;
|
|
if (at_flags) {
|
|
for (p = prompt, q = prompt2, *q = 0; (*p); p++) {
|
|
if (*p == '@') switch (flag = *++p) {
|
|
case '\0':
|
|
--p;
|
|
break;
|
|
case 'M':
|
|
if (CheckNewMail() > 0)
|
|
q = Strpcpy(q, "(Mail) ");
|
|
break;
|
|
case 'N':
|
|
q = Strpcpy(q, "\n");
|
|
lastlinestart = q;
|
|
epromptlen = 0;
|
|
break;
|
|
case 'P': /* reset to no bold, no uline, no inverse, etc. */
|
|
if (ansi_escapes) {
|
|
q = Strpcpy(q, tcap_normal);
|
|
epromptlen += tcl_normal;
|
|
}
|
|
break;
|
|
case 'B': /* toggle boldface */
|
|
if (ansi_escapes) {
|
|
q = Strpcpy(q, tcap_boldface);
|
|
epromptlen += tcl_bold;
|
|
}
|
|
break;
|
|
case 'U': /* toggle underline */
|
|
if (ansi_escapes) {
|
|
q = Strpcpy(q, tcap_underline);
|
|
epromptlen += tcl_uline;
|
|
}
|
|
break;
|
|
case 'R':
|
|
case 'I': /* toggle inverse (reverse) video */
|
|
if (ansi_escapes) {
|
|
q = Strpcpy(q, tcap_reverse);
|
|
epromptlen += tcl_rev;
|
|
}
|
|
break;
|
|
case 'D': /* insert current directory */
|
|
case 'J':
|
|
if ((flag == 'J') && (remote_is_unix)) {
|
|
/* Not the whole path, just the dir name. */
|
|
dname = rindex(cwd, '/');
|
|
if (dname == NULL)
|
|
dname = cwd;
|
|
else if ((dname != cwd) && (dname[1]))
|
|
++dname;
|
|
} else
|
|
dname = cwd;
|
|
if (dname[0]) {
|
|
q = Strpcpy(q, dname);
|
|
q = Strpcpy(q, " ");
|
|
}
|
|
break;
|
|
case 'H': /* insert name of connected host */
|
|
if (logged_in) {
|
|
(void) sprintf(str, "%s ", hostname);
|
|
q = Strpcpy(q, str);
|
|
}
|
|
break;
|
|
case 'C': /* Insert host:path (colon-mode format. */
|
|
if (logged_in) {
|
|
(void) sprintf(str, "%s:%s ", hostname, cwd);
|
|
q = Strpcpy(q, str);
|
|
} else
|
|
q = Strpcpy(q, "(not connected)");
|
|
break;
|
|
case 'c':
|
|
if (logged_in) {
|
|
(void) sprintf(str, "%s:%s\n", hostname, cwd);
|
|
q = Strpcpy(q, str);
|
|
lastlinestart = q; /* there is a \n at the end. */
|
|
epromptlen = 0;
|
|
}
|
|
break;
|
|
case '!':
|
|
case 'E': /* insert event number */
|
|
(void) sprintf(eventstr, "%ld", eventnumber);
|
|
q = Strpcpy(q, eventstr);
|
|
break;
|
|
default:
|
|
*q++ = *p; /* just copy it; unknown switch */
|
|
} else
|
|
*q++ = *p;
|
|
}
|
|
*q = '\0';
|
|
} else
|
|
(void) strcpy(prompt2, prompt);
|
|
|
|
#ifndef NO_STRFTIME
|
|
if (percent_flags) {
|
|
/* only strftime if the user requested it (with a %something),
|
|
otherwise don't waste time doing nothing. */
|
|
(void) time(&tyme);
|
|
(void) Strncpy(str, prompt2);
|
|
(void) strftime(prompt2, sizeof(str), str, localtime(&tyme));
|
|
}
|
|
#endif
|
|
epromptlen = (size_t) ((long) strlen(lastlinestart) - (long) epromptlen);
|
|
return (prompt2);
|
|
} /* strprompt */
|
|
|
|
|
|
/*
|
|
* Slice a string up into argc/argv.
|
|
*/
|
|
|
|
void makeargv(void)
|
|
{
|
|
char **argp;
|
|
|
|
margc = 0;
|
|
argp = margv;
|
|
stringbase = line; /* scan from first of buffer */
|
|
argbase = argbuf; /* store from first of buffer */
|
|
slrflag = 0;
|
|
while ((*argp++ = slurpstring()) != 0)
|
|
margc++;
|
|
} /* makeargv */
|
|
|
|
|
|
|
|
|
|
/*
|
|
* Parse string into argbuf;
|
|
* implemented with FSM to
|
|
* handle quoting and strings
|
|
*/
|
|
char *slurpstring(void)
|
|
{
|
|
int got_one = 0;
|
|
register char *sb = stringbase;
|
|
register char *ap = argbase;
|
|
char *tmp = argbase; /* will return this if token found */
|
|
|
|
if (*sb == '!' || *sb == '$') { /* recognize ! as a token for shell */
|
|
switch (slrflag) { /* and $ as token for macro invoke */
|
|
case 0:
|
|
slrflag++;
|
|
stringbase++;
|
|
return ((*sb == '!') ? "!" : "$");
|
|
/* NOTREACHED */
|
|
case 1:
|
|
slrflag++;
|
|
altarg = stringbase;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
S0:
|
|
switch (*sb) {
|
|
|
|
case '\0':
|
|
goto OUT;
|
|
|
|
case ' ':
|
|
case '\t':
|
|
case '\n':
|
|
case '=':
|
|
sb++; goto S0;
|
|
|
|
default:
|
|
switch (slrflag) {
|
|
case 0:
|
|
slrflag++;
|
|
break;
|
|
case 1:
|
|
slrflag++;
|
|
altarg = sb;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
goto S1;
|
|
}
|
|
|
|
S1:
|
|
switch (*sb) {
|
|
|
|
case ' ':
|
|
case '\t':
|
|
case '\n':
|
|
case '=':
|
|
case '\0':
|
|
goto OUT; /* end of token */
|
|
|
|
case '\\':
|
|
sb++; goto S2; /* slurp next character */
|
|
|
|
case '"':
|
|
sb++; goto S3; /* slurp quoted string */
|
|
|
|
default:
|
|
*ap++ = *sb++; /* add character to token */
|
|
got_one = 1;
|
|
goto S1;
|
|
}
|
|
|
|
S2:
|
|
switch (*sb) {
|
|
|
|
case '\0':
|
|
goto OUT;
|
|
|
|
default:
|
|
*ap++ = *sb++;
|
|
got_one = 1;
|
|
goto S1;
|
|
}
|
|
|
|
S3:
|
|
switch (*sb) {
|
|
|
|
case '\0':
|
|
goto OUT;
|
|
|
|
case '"':
|
|
sb++; goto S1;
|
|
|
|
default:
|
|
*ap++ = *sb++;
|
|
got_one = 1;
|
|
goto S3;
|
|
}
|
|
|
|
OUT:
|
|
if (got_one)
|
|
*ap++ = '\0';
|
|
argbase = ap; /* update storage pointer */
|
|
stringbase = sb; /* update scan pointer */
|
|
if (got_one) {
|
|
return(tmp);
|
|
}
|
|
switch (slrflag) {
|
|
case 0:
|
|
slrflag++;
|
|
break;
|
|
case 1:
|
|
slrflag++;
|
|
altarg = (char *) 0;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
return((char *)0);
|
|
} /* slurpstring */
|
|
|
|
/*
|
|
* Help command.
|
|
* Call each command handler with argc == 0 and argv[0] == name.
|
|
*/
|
|
int
|
|
help(int argc, char **argv)
|
|
{
|
|
register struct cmd *c;
|
|
int showall = 0, helpall = 0;
|
|
char *arg;
|
|
int i, j, k;
|
|
int nRows, nCols;
|
|
int nCmds2Print;
|
|
int screenColumns;
|
|
int len, widestName;
|
|
char *cp, **cmdnames, spec[16];
|
|
|
|
if (argc == 2) {
|
|
showall = (strcmp(argv[1], "showall") == 0);
|
|
helpall = (strcmp(argv[1], "helpall") == 0);
|
|
}
|
|
if (argc == 1 || showall) {
|
|
(void) printf("\
|
|
Commands may be abbreviated. 'help showall' shows aliases, invisible and\n\
|
|
unsupported commands. 'help <command>' gives a brief description of <command>.\n\n");
|
|
|
|
for (c = cmdtab, nCmds2Print=0; c->c_name != NULL; c++)
|
|
if (!c->c_hidden || showall)
|
|
nCmds2Print++;
|
|
|
|
if ((cmdnames = (char **) malloc(sizeof(char *) * nCmds2Print)) == NULL)
|
|
fatal("out of memory!");
|
|
|
|
for (c = cmdtab, i=0, widestName=0; c->c_name != NULL; c++) {
|
|
if (!c->c_hidden || showall) {
|
|
cmdnames[i++] = c->c_name;
|
|
len = (int) strlen(c->c_name);
|
|
if (len > widestName)
|
|
widestName = len;
|
|
}
|
|
}
|
|
|
|
if ((cp = getenv("COLUMNS")) == NULL)
|
|
screenColumns = 80;
|
|
else
|
|
screenColumns = atoi(cp);
|
|
|
|
widestName += 2; /* leave room for white-space in between cols. */
|
|
nCols = screenColumns / widestName;
|
|
/* if ((screenColumns % widestName) > 0) nCols++; */
|
|
nRows = nCmds2Print / nCols;
|
|
if ((nCmds2Print % nCols) > 0)
|
|
nRows++;
|
|
|
|
(void) sprintf(spec, "%%-%ds", widestName);
|
|
for (i=0; i<nRows; i++) {
|
|
for (j=0; j<nCols; j++) {
|
|
k = nRows*j + i;
|
|
if (k < nCmds2Print)
|
|
(void) printf(spec, cmdnames[k]);
|
|
}
|
|
(void) printf("\n");
|
|
}
|
|
Free(cmdnames);
|
|
} else if (helpall) {
|
|
/* Really intended to debug the help strings. */
|
|
for (c = cmdtab; c->c_name != NULL; c++) {
|
|
cmd_help(c);
|
|
cmd_usage(c);
|
|
}
|
|
} else while (--argc > 0) {
|
|
arg = *++argv;
|
|
c = getcmd(arg);
|
|
if (c == (struct cmd *)-1)
|
|
(void) printf("?Ambiguous help command %s\n", arg);
|
|
else if (c == (struct cmd *)0)
|
|
(void) printf("?Invalid help command %s\n", arg);
|
|
else {
|
|
cmd_help(c);
|
|
cmd_usage(c);
|
|
}
|
|
}
|
|
return NOERR;
|
|
} /* help */
|
|
|
|
|
|
/*
|
|
* If the user wants to, s/he can specify the maximum size of the log
|
|
* file, so it doesn't waste too much disk space. If the log is too
|
|
* fat, trim the older lines (at the top) until we're under the limit.
|
|
*/
|
|
void trim_log(void)
|
|
{
|
|
FILE *new, *old;
|
|
struct stat st;
|
|
long fat;
|
|
string tmplogname, str;
|
|
|
|
if (logsize <= 0 || *logfname == 0 || stat(logfname, &st) ||
|
|
(old = fopen(logfname, "r")) == NULL)
|
|
return; /* never trim, or no log */
|
|
fat = st.st_size - logsize;
|
|
if (fat <= 0L) return; /* log too small yet */
|
|
while (fat > 0L) {
|
|
if (FGets(str, old) == NULL) return;
|
|
fat -= (long) strlen(str);
|
|
}
|
|
/* skip lines until a new site was opened */
|
|
while (1) {
|
|
if (FGets(str, old) == NULL) {
|
|
(void) fclose(old);
|
|
(void) unlink(logfname);
|
|
return; /* nothing left, start anew */
|
|
}
|
|
if (*str != '\t') break;
|
|
}
|
|
|
|
/* copy the remaining lines in "old" to "new" */
|
|
(void) Strncpy(tmplogname, logfname);
|
|
tmplogname[strlen(tmplogname) - 1] = 'T';
|
|
if ((new = fopen(tmplogname, "w")) == NULL) {
|
|
(void) PERROR("trim_log", tmplogname);
|
|
return;
|
|
}
|
|
(void) fputs(str, new);
|
|
while (FGets(str, old))
|
|
(void) fputs(str, new);
|
|
(void) fclose(old); (void) fclose(new);
|
|
if (unlink(logfname) < 0)
|
|
PERROR("trim_log", logfname);
|
|
if (rename(tmplogname, logfname) < 0)
|
|
PERROR("trim_log", tmplogname);
|
|
} /* trim_log */
|
|
|
|
|
|
|
|
|
|
int CheckNewMail(void)
|
|
{
|
|
struct stat stbuf;
|
|
|
|
if (*mail_path == '\0') return 0;
|
|
if (stat(mail_path, &stbuf) < 0) { /* cant find mail_path so we'll */
|
|
*mail_path = '\0'; /* never check it again */
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Check if the size is non-zero and the access time is less than
|
|
* the modify time -- this indicates unread mail.
|
|
*/
|
|
if ((stbuf.st_size != 0) && (stbuf.st_atime <= stbuf.st_mtime)) {
|
|
if (stbuf.st_mtime > mbox_time) {
|
|
(void) printf("%s\n", NEWMAILMESSAGE);
|
|
mbox_time = stbuf.st_mtime;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
} /* CheckNewMail */
|
|
|
|
|
|
|
|
#ifdef CURSES
|
|
int termcap_get(char **dest, char *attr)
|
|
{
|
|
static char area[1024];
|
|
static char *s = area;
|
|
char *buf, *cp;
|
|
int i, result = -1;
|
|
int len = 0;
|
|
|
|
*dest = NULL;
|
|
while (*attr != '\0') {
|
|
buf = tgetstr(attr, &s);
|
|
if (buf != NULL && buf[0] != '\0') {
|
|
for (i = 0; (buf[i] <= '9') && (buf[i] >= '0'); )
|
|
i++;
|
|
/* Get rid of the terminal delays, like "$<2>". */
|
|
if ((cp = strstr(&(buf[i]), "$<")) != NULL)
|
|
*cp = 0;
|
|
if (*dest == NULL)
|
|
*dest = (char *)malloc(strlen(&(buf[i])) + 1);
|
|
else
|
|
*dest = (char *)realloc(*dest, len + strlen(&(buf[i])) + 1);
|
|
if (*dest == NULL)
|
|
break;
|
|
(void) strcpy(*dest + len, &(buf[i]));
|
|
len += strlen (&(buf[i]));
|
|
}
|
|
attr += 2;
|
|
}
|
|
if (*dest == NULL)
|
|
*dest = "";
|
|
else
|
|
result = 0;
|
|
return (result);
|
|
} /* termcap_get */
|
|
|
|
|
|
|
|
void termcap_init(void)
|
|
{
|
|
char *term;
|
|
|
|
if ((term = getenv("TERM")) == NULL) {
|
|
term = "dumb"; /* TAR */
|
|
ansi_escapes = 0;
|
|
}
|
|
if (tgetent(tcbuf,term) != 1) {
|
|
(void) fprintf(stderr,"Can't get termcap entry for terminal [%s]\n", term);
|
|
} else {
|
|
(void) termcap_get(&tcap_normal, "meuese");
|
|
if (termcap_get(&tcap_boldface, "md") < 0) {
|
|
/* Dim-mode is better than nothing... */
|
|
(void) termcap_get(&tcap_boldface, "mh");
|
|
}
|
|
(void) termcap_get(&tcap_underline, "us");
|
|
(void) termcap_get(&tcap_reverse, "so");
|
|
tcl_normal = strlen(tcap_normal);
|
|
tcl_bold = strlen(tcap_boldface);
|
|
tcl_uline = strlen(tcap_underline);
|
|
tcl_rev = strlen(tcap_reverse);
|
|
}
|
|
|
|
} /* termcap_init */
|
|
|
|
|
|
|
|
static int c_output(int c)
|
|
{
|
|
return (putchar(c));
|
|
} /* c_output */
|
|
|
|
|
|
|
|
|
|
void tcap_put(char *cap)
|
|
{
|
|
tputs(cap, 0, c_output);
|
|
} /* tcap_put */
|
|
|
|
#endif /* CURSES */
|
|
|
|
/* eof main.c */
|
|
|