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#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/mount.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
#include "imount.h"
#include "sundries.h"
#define _(foo) foo
static int mkdirIfNone(char * directory);
int doPwMount(char * dev, char * where, char * fs, int options, void *data) {
char * buf = NULL;
int isnfs = 0;
char * mount_opt = NULL;
long int flag;
char * chptr __attribute__ ((unused));
if (!strcmp(fs, "nfs")) isnfs = 1;
/*logMessage("mounting %s on %s as type %s", dev, where, fs);*/
if (mkdirChain(where))
return IMOUNT_ERR_ERRNO;
flag = MS_MGC_VAL;
if (options & IMOUNT_RDONLY)
flag |= MS_RDONLY;
if (options & IMOUNT_BIND)
flag |= MS_BIND;
if (options & IMOUNT_REMOUNT)
flag |= MS_REMOUNT;
if (!isnfs && (*dev == '/' || !strcmp(dev, "none"))) {
buf = dev;
} else if (!isnfs) {
buf = alloca(200);
strcpy(buf, "/tmp/");
strcat(buf, dev);
} else {
#ifndef DISABLE_NETWORK
char * extra_opts = NULL;
int flags = 0;
if (data)
extra_opts = strdup(data);
buf = dev;
/*logMessage("calling nfsmount(%s, %s, &flags, &extra_opts, &mount_opt)",
buf, where);*/
if (nfsmount(buf, where, &flags, &extra_opts, &mount_opt, 0)) {
/*logMessage("\tnfsmount returned non-zero");*/
/*fprintf(stderr, "nfs mount failed: %s\n",
nfs_error());*/
return IMOUNT_ERR_OTHER;
}
#endif
}
if (!strncmp(fs, "vfat", 4))
mount_opt="check=relaxed";
#ifdef __sparc__
if (!strncmp(fs, "ufs", 3))
mount_opt="ufstype=sun";
#endif
/*logMessage("calling mount(%s, %s, %s, %ld, %p)", buf, where, fs,
flag, mount_opt);*/
if (mount(buf, where, fs, flag, mount_opt)) {
return IMOUNT_ERR_ERRNO;
}
return 0;
}
int mkdirChain(char * origChain) {
char * chain;
char * chptr;
chain = alloca(strlen(origChain) + 1);
strcpy(chain, origChain);
chptr = chain;
while ((chptr = strchr(chptr, '/'))) {
*chptr = '\0';
if (mkdirIfNone(chain)) {
*chptr = '/';
return IMOUNT_ERR_ERRNO;
}
*chptr = '/';
chptr++;
}
if (mkdirIfNone(chain))
return IMOUNT_ERR_ERRNO;
return 0;
}
static int mkdirIfNone(char * directory) {
int rc, mkerr;
char * chptr;
/* If the file exists it *better* be a directory -- I'm not going to
actually check or anything */
if (!access(directory, X_OK)) return 0;
/* if the path is '/' we get ENOFILE not found" from mkdir, rather
then EEXIST which is weird */
for (chptr = directory; *chptr; chptr++)
if (*chptr != '/') break;
if (!*chptr) return 0;
rc = mkdir(directory, 0755);
mkerr = errno;
if (!rc || mkerr == EEXIST) return 0;
return IMOUNT_ERR_ERRNO;
}
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