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- Committer: Bazaar Package Importer
- Author(s): Thomas Schoepf
- Date: 2002-03-17 15:09:36 UTC
- Revision ID: james.westby@ubuntu.com-20020317150936-yglzziwcc0luz55k
Tags: upstream-1.6.0
Import upstream version 1.6.0
- files added:
- contrib
added
removed
alevt-cap.c
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#include <stdio.h>
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#include <stdlib.h>
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#include <signal.h>
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#include "vt.h"
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#include "misc.h"
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#include "fdset.h"
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#include "vbi.h"
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#include "lang.h"
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#include "dllist.h"
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#include "export.h"
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int debug = 0;
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static volatile int timed_out = 0;
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struct req
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{
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struct dl_node node[1];
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char *name; // file name
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char *pgno_str; // the pgno as given on the cmdline
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int pgno, subno; // decoded pgno
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struct export *export; // export data
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struct vt_page vtp[1]; // the capture page data
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};
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static void
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usage(FILE *fp, int exitval)
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{
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fprintf(fp, "\nUsage: %s [options] ppp[.ss]...\n", prgname);
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fprintf(fp,
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"\n"
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" Valid options:\t\tDefault:\n"
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" --help\n"
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" --version\n"
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" -vbi <vbidev>\t\t/dev/vbi\n"
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" -finetune <-4..4|auto>\t0\n"
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//" -oldbttv\t\t\t(for bttv <0.5.20)\n"
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" -charset latin-1/2\t\tlatin-1\n"
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" -timeout <secs>\t\tnone\n"
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" -name <filename>\t\tttext-%%s.%%e\n"
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" -format <fmt[,options]>\tascii\n"
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" -format help\n"
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"\n"
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" ppp[.ss] stands for a page number and an\n"
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" optional subpage number (ie 123.4). If\n"
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" the subpage number is omitted the first\n"
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" transmitted subpage is captured.\n"
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"\n"
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);
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exit(exitval);
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}
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static void
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exp_help(FILE *fp)
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{
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struct export_module **ep;
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char **cp, c;
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fprintf(fp,
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"\nSyntax: -format Name[,Options]\n"
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"\n"
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" Name\tExt.\tOptions\n"
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" --------------------------------\n"
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);
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for (ep = modules; *ep; ep++)
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{
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fprintf(fp, " %-7s\t.%-4s", (*ep)->fmt_name, (*ep)->extension);
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for (c = '\t', cp = (*ep)->options; cp && *cp; cp++, c = ',')
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fprintf(fp, "%c%s", c, *cp);
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fprintf(fp, "\n");
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}
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fprintf(fp,
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"\n"
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"Common options: reveal,hide\n"
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"\n"
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"Example: -format ansi,reveal,bg=none\n"
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"\n"
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);
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exit(0);
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}
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static void
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sig_handler(int sig)
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{
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if (debug)
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write(2, "*BREAK*\r\n", 9);
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timed_out = 1;
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}
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static int
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arg_pgno(char *p, int *subno)
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{
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char *end;
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int pgno;
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*subno = ANY_SUB;
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if (*p)
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{
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pgno = strtol(p, &end, 16);
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if ((*end == ':' || *end == '/' || *end == '.') && end[1])
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*subno = strtol(end + 1, &end, 16);
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if (*end == 0)
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if (pgno >= 0x100 && pgno <= 0x899)
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if (*subno == ANY_SUB || (*subno >= 0x00 && *subno <= 0x3f7f))
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return pgno;
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}
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fatal("%s: invalid page number", p);
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}
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static int
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option(int argc, char **argv, int *ind, char **arg)
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{
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static struct { char *nam, *altnam; int arg; } opts[] = {
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{ "--help", "-h", 0 },
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{ "--version", "-v", 0 },
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{ "-copyright", "-�", 0 },
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{ "-debug", "--debug", 0 },
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{ "-vbi", "-dev", 1 },
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{ "-newbttv", "-new", 0 },
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{ "-oldbttv", "-old", 0 },
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{ "-finetune", "-f", 1 },
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{ "-charset", "-latin", 1 },
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{ "-format", "-fmt", 1 },
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{ "-name", "-o", 1 },
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{ "-timeout", "-t", 1 },
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};
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int i;
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if (*ind >= argc)
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return 0;
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*arg = argv[(*ind)++];
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for (i = 0; i < NELEM(opts); ++i)
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if (streq(*arg, opts[i].nam) || streq(*arg, opts[i].altnam))
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{
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if (opts[i].arg)
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if (*ind < argc)
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*arg = argv[(*ind)++];
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else
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fatal("option %s requires an argument", *arg);
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return i+1;
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}
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if (**arg == '-')
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{
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fatal("%s: invalid option", *arg);
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usage(stderr, 2);
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}
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return -1;
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}
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static void
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event(struct dl_head *reqs, struct vt_event *ev)
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{
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struct req *req, *nxt;
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switch (ev->type)
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{
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case EV_PAGE: // new page
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{
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struct vt_page *vtp = ev->p1;
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for (req = $ reqs->first; nxt = $ req->node->next; req = nxt)
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if (req->pgno == vtp->pgno)
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if (req->subno == ANY_SUB || req->subno == vtp->subno)
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{
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if (debug)
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printf("captured page %x.%02x\n", vtp->pgno,
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vtp->subno);
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*req->vtp = *vtp;
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dl_insert_last(reqs + 1, dl_remove(req->node));
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// the same page may be there in different formats.
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// so, don't break.
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//break;
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}
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}
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}
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}
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int
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main(int argc, char **argv)
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{
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char *vbi_name = "/dev/vbi";
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int fine_tune = 1; // auto = 999;
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int newbttv = -1;
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int timeout = 0;
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char *fname = "ttext-%s.%e";
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char *out_fmt = "ascii";
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struct export *fmt = 0;
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int pgno, subno;
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int opt, ind;
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char *arg;
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struct vbi *vbi;
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struct req *req;
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struct dl_head reqs[2]; // simple linear lists of requests & captures
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setprgname(argv[0]);
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fdset_init(fds);
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dl_init(reqs); // the requests
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dl_init(reqs+1); // the captured pages
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ind = 1;
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while (opt = option(argc, argv, &ind, &arg))
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switch (opt)
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{
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case 1: // help
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usage(stdout, 0);
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break;
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case 2: // version
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printf("AleVT Version "VERSION"\n");
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exit(0);
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case 3: // copyright
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printf("Copyright 2000 by E. Toernig, froese@gmx.de\n");
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exit(0);
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case 4: // debug
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debug++;
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break;
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case 5: // vbi
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vbi_name = arg;
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break;
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case 6: // newbttv
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newbttv = 1;
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break;
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case 7: // oldbttv
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newbttv = 0;
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break;
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case 8: // finetune
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if (streq(arg, "auto"))
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fine_tune = 999;
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else
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fine_tune = strtol(arg, 0, 10);
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break;
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case 9: // charset
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if (streq(arg, "latin-1") || streq(arg, "1"))
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latin1 = 1;
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else if (streq(arg, "latin-2") || streq(arg, "2"))
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latin1 = 0;
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else
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fatal("bad charset (not latin-1/2)");
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break;
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case 10: // format
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if (streq(arg, "help") || streq(arg, "?") || streq(arg, "list"))
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exp_help(stdout);
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out_fmt = arg;
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fmt = 0;
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break;
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case 11: // name
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fname = arg;
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break;
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case 12: // timeout
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timeout = strtol(arg, 0, 10);
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if (timeout < 1 || timeout > 999999)
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fatal("bad timeout value", timeout);
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break;
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case -1: // non-option arg
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if (not fmt)
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fmt = export_open(out_fmt);
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if (not fmt)
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fatal("%s", export_errstr());
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if (not(req = malloc(sizeof(*req))))
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out_of_mem(sizeof(*req));
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req->name = fname;
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req->pgno_str = arg;
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req->pgno = arg_pgno(arg, &req->subno);
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req->export = fmt;
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dl_insert_last(reqs, req->node);
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break;
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}
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if (dl_empty(reqs))
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fatal("no pages requested");
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// setup device
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if (not(vbi = vbi_open(vbi_name, 0, fine_tune, newbttv)))
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fatal("cannot open %s", vbi_name);
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vbi_add_handler(vbi, event, reqs); // register event handler
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signal(SIGUSR1, sig_handler);
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signal(SIGALRM, sig_handler);
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if (timeout)
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alarm(timeout);
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// capture pages (moves requests from reqs[0] to reqs[1])
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while (not dl_empty(reqs) && not timed_out)
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if (fdset_select(fds, 30000) == 0) // 30sec select time out
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{
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error("no signal.");
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break;
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}
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alarm(0);
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vbi_del_handler(vbi, event, reqs);
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vbi_close(vbi);
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if (not dl_empty(reqs))
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error("capture aborted. some pages are missing.");
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for (req = $ reqs[1].first; req->node->next; req = $ req->node->next)
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{
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fname = export_mkname(req->export, req->name, req->vtp, req->pgno_str);
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if (not fname || export(req->export, req->vtp, fname))
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error("error saving page %s: %s", req->pgno_str, export_errstr());
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if (fname)
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free(fname);
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}
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exit(dl_empty(reqs) ? 0 : 1);
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}
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