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Arquivotheca.SunOS-4.1.4/sccs/lib/putline.c
seta75D ff309bfe1c Init
2021-10-11 18:37:13 -03:00

131 lines
2.6 KiB
C

# include "../hdr/defines.h"
SCCSID(@(#)putline.c 1.7 86/08/26 SMI); /* from System III 5.1 */
/*
Routine to write out either the current line in the packet
(if newline is zero) or the line specified by newline.
A line is actually written (and the x-file is only
opened) if pkt->p_upd is non-zero. When the current line from
the packet is written, pkt->p_wrttn is set non-zero, and
further attempts to write it are ignored. When a line is
read into the packet, pkt->p_wrttn must be turned off.
*/
#define MAX_LINES 99999 /* Max # of lines that can fit in the */
/* stats field. Larger #s will overflow */
/* and corrupt the file */
int Xcreate;
FILE *Xiop;
putline(pkt,newline)
register struct packet *pkt;
char *newline;
{
static char obf[BUFSIZ];
char *xf;
register char *p;
extern char *auxf();
FILE *fdfopen();
if(pkt->p_upd == 0) return;
xf = auxf(pkt->p_file, 'x');
if(!Xcreate) {
/*
* Stash away gid and uid from the stat,
* as Xfcreat will trash Statbuf.
*/
int gid, uid;
stat(pkt->p_file,&Statbuf);
Xiop = xfcreat(xf,Statbuf.st_mode);
setbuf(Xiop,obf);
}
if (newline)
p = newline;
else {
if(!pkt->p_wrttn++)
p = pkt->p_line;
else
p = 0;
}
if (p) {
if (fputs(p, Xiop) == EOF)
xmsg(xf, "putline");
if (Xcreate)
while (*p)
pkt->p_nhash += *p++;
}
Xcreate = 1;
}
flushline(pkt,stats)
register struct packet *pkt;
register struct stats *stats;
{
register char *p;
char *xf;
char ins[6], del[6], unc[6], hash[6];
if (pkt->p_upd == 0)
return;
putline(pkt,0);
rewind(Xiop);
if (stats) {
if (stats->s_ins > MAX_LINES) {
stats->s_ins = MAX_LINES;
}
if (stats->s_del > MAX_LINES) {
stats->s_del = MAX_LINES;
}
if (stats->s_unc > MAX_LINES) {
stats->s_unc = MAX_LINES;
}
sprintf(ins,"%05u",stats->s_ins);
sprintf(del,"%05u",stats->s_del);
sprintf(unc,"%05u",stats->s_unc);
for (p = ins; *p; p++)
pkt->p_nhash += (*p - '0');
for (p = del; *p; p++)
pkt->p_nhash += (*p - '0');
for (p = unc; *p; p++)
pkt->p_nhash += (*p - '0');
}
sprintf(hash,"%5u",pkt->p_nhash&0xFFFF);
zeropad(hash);
xf = auxf(pkt->p_file, 'x');
if (fprintf(Xiop, "%c%c%s\n", CTLCHAR, HEAD, hash) == EOF)
xmsg(xf, "flushline");
if (stats)
if (fprintf(Xiop, "%c%c %s/%s/%s\n",
CTLCHAR, STATS, ins, del, unc) == EOF)
xmsg(xf, "flushline");
if (fflush(Xiop) == EOF)
xmsg(xf, "flushline");
/*
* Lots of paranoia here, to try to catch
* delayed failure information from NFS.
*/
if (fsync(fileno(Xiop)) < 0)
xmsg(xf, "flushline");
if (fclose(Xiop) == EOF)
xmsg(xf, "flushline");
}
xrm(pkt)
struct packet *pkt;
{
if (Xiop)
fclose(Xiop);
Xcreate = 0;
Xiop = (FILE *)0;
}