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/*
* support/nfs/rmtab.c
*
* Handling for rmtab.
*
* Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de>
*/
#include "config.h"
#include <sys/fcntl.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <unistd.h>
#include <errno.h>
#include <signal.h>
#include "nfslib.h"
static FILE *rmfp = NULL;
int
setrmtabent(char *type)
{
if (rmfp)
fclose(rmfp);
rmfp = fsetrmtabent(_PATH_RMTAB, type);
return (rmfp != NULL);
}
FILE *
fsetrmtabent(char *fname, char *type)
{
int readonly = !strcmp(type, "r");
FILE *fp;
if (!fname)
return NULL;
if ((fp = fopen(fname, type)) == NULL) {
xlog(L_ERROR, "can't open %s for %sing", fname,
readonly ? "read" : "writ");
return NULL;
}
return fp;
}
struct rmtabent *
getrmtabent(int log)
{
return fgetrmtabent(rmfp, log);
}
struct rmtabent *
fgetrmtabent(FILE *fp, int log)
{
static struct rmtabent re;
char buf[2048], *sp;
errno = 0;
if (!fp)
return NULL;
do {
if (fgets(buf, sizeof(buf)-1, fp) == NULL)
return NULL;
if ((sp = strchr(buf, '\n')) != NULL)
*sp = '\0';
if (!(sp = strchr(buf, ':'))) {
if (log)
xlog(L_ERROR, "malformed entry in rmtab file");
errno = EINVAL;
return NULL;
}
*sp++ = '\0';
} while (0);
strncpy(re.r_client, buf, sizeof (re.r_client) - 1);
re.r_client[sizeof (re.r_client) - 1] = '\0';
strncpy(re.r_path, sp, sizeof (re.r_path) - 1);
re.r_path[sizeof (re.r_path) - 1] = '\0';
return &re;
}
void
putrmtabent(struct rmtabent *rep)
{
fputrmtabent(rmfp, rep);
}
void
fputrmtabent(FILE *fp, struct rmtabent *rep)
{
if (!fp)
return;
fprintf(fp, "%s:%s\n", rep->r_client, rep->r_path);
}
void
endrmtabent(void)
{
fendrmtabent(rmfp);
rmfp = NULL;
}
void
fendrmtabent(FILE *fp)
{
if (fp)
fclose(fp);
}
void
rewindrmtabent(void)
{
if (rmfp)
rewind(rmfp);
}
void
frewindrmtabent(FILE *fp)
{
if (fp)
rewind (fp);
}
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