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/*
* Copyright 2017 Gary Mills
* Copyright 2005 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
/*
* Copyright (c) 1980 Regents of the University of California.
* All rights reserved. The Berkeley software License Agreement
* specifies the terms and conditions for redistribution.
*/
#include <stdio.h>
#include <locale.h>
#include <assert.h>
#define SAME 0
#define FGCT 10
#define FGSIZE 150
int keepold = 1; /* keep old things for fgrep search */
char fgspace[FGSIZE];
char *fgp = fgspace;
char *fgnames[FGCT];
char **fgnamp = fgnames;
extern char *mindex();
long
findline(char *in, char **out, int outlen, long indexdate)
{
static char name[100] = "";
char *p, **ftp;
extern long gdate();
static FILE *fa = NULL;
long lp, llen;
int k, nofil;
if (mindex(in, '!'))
return (0);
nofil = in[0] == 0;
for (p = in; *p && *p != ':' && *p != ';'; p++)
;
if (*p) *p++ = 0;
else p = in;
k = sscanf(p, "%ld,%ld", &lp, &llen);
if (k < 2) {
lp = 0;
llen = outlen;
}
if (nofil) {
fa = stdin;
} else
if (strcmp(name, in) != 0 || 1) {
if (fa != NULL)
fa = freopen(in, "r", fa);
else
fa = fopen(in, "r");
if (fa == NULL)
return (0);
/* err("Can't open %s", in); */
strcpy(name, in);
if (gdate(fa) > indexdate && indexdate != 0) {
if (keepold) {
for (ftp = fgnames; ftp < fgnamp; ftp++)
if (strcmp(*ftp, name) == SAME)
return (0);
strcpy(*fgnamp++ = fgp, name);
assert(fgnamp < fgnames+FGCT);
while (*fgp && *fgp != ':')
fgp++;
*fgp++ = 0;
assert(fgp < fgspace+FGSIZE);
return (0);
}
fprintf(stderr, gettext(
"Warning: index predates file '%s'\n"),
name);
}
}
if (fa != NULL) {
fseek(fa, lp, 0);
*out = (char *)malloc(llen + 1);
if (*out == NULL) {
return (0);
}
(void) fread(*out, 1, llen, fa);
*(*out + llen) = 0;
}
return (llen);
}
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