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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <mntent.h>
#define BUFLEN 1024
struct mntent *getmntent_r(FILE *fp, struct mntent *mntbuf, char *buf,
int buflen)
{
char *line = NULL, *saveptr = NULL;
const char *sep = " \t\n";
if (!fp || !mntbuf || !buf)
return NULL;
while ((line = fgets(buf, buflen, fp)) != NULL) {
if (buf[0] == '#' || buf[0] == '\n')
continue;
break;
}
if (!line)
return NULL;
mntbuf->mnt_fsname = strtok_r(buf, sep, &saveptr);
if (!mntbuf->mnt_fsname)
return NULL;
mntbuf->mnt_dir = strtok_r(NULL, sep, &saveptr);
if (!mntbuf->mnt_fsname)
return NULL;
mntbuf->mnt_type = strtok_r(NULL, sep, &saveptr);
if (!mntbuf->mnt_type)
return NULL;
mntbuf->mnt_opts = strtok_r(NULL, sep, &saveptr);
if (!mntbuf->mnt_opts)
mntbuf->mnt_opts = "";
line = strtok_r(NULL, sep, &saveptr);
mntbuf->mnt_freq = !line ? 0 : atoi(line);
line = strtok_r(NULL, sep, &saveptr);
mntbuf->mnt_passno = !line ? 0 : atoi(line);
return mntbuf;
}
struct mntent *getmntent(FILE *fp)
{
static char *buf = NULL;
static struct mntent mntbuf;
buf = malloc(BUFLEN);
if (!buf)
perror("malloc");
return getmntent_r(fp, &mntbuf, buf, BUFLEN);
}
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