/* return: 0 - cannot open fnam; 1 - otherwise */
bool
page_file(const char *fnam, bool silent)
{
#ifdef DEF_PAGER /* this implies that UNIX is defined */
/* use external pager; this may give security problems */
int fd = open(fnam, O_RDONLY);
if (fd < 0) {
if (!silent)
pline("Cannot open %s.", fnam);
return (0);
}
if (child(1)) {
extern char *catmore;
/*
* Now that child() does a setuid(getuid()) and a
* chdir(), we may not be able to open file fnam
* anymore, so make it stdin.
*/
close(0);
if (dup(fd)) {
if (!silent)
printf("Cannot open %s as stdin.\n", fnam);
} else {
execl(catmore, "page", NULL);
if (!silent)
printf("Cannot exec %s.\n", catmore);
}
exit(1);
}
close(fd);
#else /* DEF_PAGER */
FILE *f; /* free after Robert Viduya */
if ((f = fopen(fnam, "r")) == NULL) {
if (!silent) {
home();
perror(fnam);
flags.toplin = 1;
pline("Cannot open %s.", fnam);
}
return (0);
}
page_more(f, 0);
#endif /* DEF_PAGER */
return (1);
}
int
dowhatis()
{
FILE *fp;
char bufr[BUFSZ+6];
char *buf = &bufr[6], q;
size_t len;
extern char readchar();
if (!(fp = fopen(DATAFILE, "r")))
pline("Cannot open data file!");
else {
pline("Specify what? ");
q = readchar();
if (q != '\t')
while (fgets(buf,BUFSZ,fp))
if (*buf == q) {
len = strcspn(buf, "\n");
/* bad data file */
if (len == 0)
continue;
buf[len] = '\0';
/* Expand tab 'by hand' */
if (buf[1] == '\t'){
buf = bufr;
buf[0] = q;
(void) strncpy(buf+1, " ", 7);
len = strlen(buf);
}
pline(buf);
if (buf[len - 1] == ';') {
pline("More info? ");
if (readchar() == 'y') {
page_more(fp,1); /* does fclose() */
return(0);
}
}
(void) fclose(fp); /* kopper@psuvax1 */
return(0);
}
pline("I've never heard of such things.");
(void) fclose(fp);
}
return(0);
}
varargs int page(string data, string title, function callback, int no_ansi)
{
if(!stringp(data)) return 0;
if(stringp(title)) write("*===| Paging: " + title + " |===*\n\n");
if(functionp(callback)) cb = callback;
if(no_ansi) ansi = 0;
currentLine = 0;
if(!this_player()->query_env("morelines"))
myLinesPerCycle = DEF_LINESPERCYCLE;
else
myLinesPerCycle = to_int(this_player()->query_env("morelines"));
linesPerCycle = myLinesPerCycle - 1;
exploded = explode(data, "\n");
totalLines = sizeof(exploded);
page_more();
}
int
dowhatis()
{
FILE *fp;
char bufr[BUFSZ + 6];
char *buf = &bufr[6], *ep, q;
if (!(fp = fopen(DATAFILE, "r")))
pline("Cannot open data file!");
else {
pline("Specify what? ");
q = readchar();
if (q != '\t')
while (fgets(buf, BUFSZ, fp))
if (*buf == q) {
ep = strchr(buf, '\n');
if (ep)
*ep = 0;
/* else: bad data file */
/* Expand tab 'by hand' */
if (buf[1] == '\t') {
buf = bufr;
buf[0] = q;
(void) strncpy(buf + 1, " ", 7);
}
pline(buf);
if (ep[-1] == ';') {
pline("More info? ");
if (readchar() == 'y') {
page_more(fp, 1); /* does fclose() */
return (0);
}
}
(void) fclose(fp); /* kopper@psuvax1 */
return (0);
}
pline("I've never heard of such things.");
(void) fclose(fp);
}
return (0);
}
