/* This is a multi-purpose funciton for use by either
* GetNthIdentity or GetNthUser. The parameter 'id' indicates
* whether we are counting all identities (if true), or just
* ones which can be represented by the old-style interfaces
* We return -1 for EOF, 0 for success, and >0 for all errors.
*/
static int
GetNthIdentityOrUser(struct afsconf_dir *dir, int count,
struct rx_identity **identity, int id)
{
bufio_p bp;
char *tbuffer;
struct rx_identity fileUser;
afs_int32 code;
tbuffer = malloc(AFSDIR_PATH_MAX);
if (tbuffer == NULL)
return ENOMEM;
LOCK_GLOBAL_MUTEX;
UserListFileName(dir, tbuffer, AFSDIR_PATH_MAX);
bp = BufioOpen(tbuffer, O_RDONLY, 0);
if (!bp) {
UNLOCK_GLOBAL_MUTEX;
free(tbuffer);
return -1;
}
while (1) {
code = BufioGets(bp, tbuffer, AFSDIR_PATH_MAX);
if (code < 0) {
code = -1;
break;
}
code = ParseLine(tbuffer, &fileUser);
if (code != 0)
break;
if (id || fileUser.kind == RX_ID_KRB4)
count--;
if (count < 0)
break;
else
rx_identity_freeContents(&fileUser);
}
if (code == 0) {
*identity = rx_identity_copy(&fileUser);
rx_identity_freeContents(&fileUser);
}
BufioClose(bp);
UNLOCK_GLOBAL_MUTEX;
free(tbuffer);
return code;
}
int
afsconf_IsSuperIdentity(struct afsconf_dir *adir,
struct rx_identity *user)
{
bufio_p bp;
char tbuffer[1024];
struct rx_identity fileUser;
int match;
afs_int32 code;
UserListFileName(adir, tbuffer, sizeof tbuffer);
bp = BufioOpen(tbuffer, O_RDONLY, 0);
if (!bp)
return 0;
match = 0;
while (!match) {
code = BufioGets(bp, tbuffer, sizeof(tbuffer));
if (code < 0)
break;
code = ParseLine(tbuffer, &fileUser);
if (code != 0)
break;
match = rx_identity_match(user, &fileUser);
rx_identity_freeContents(&fileUser);
}
BufioClose(bp);
return match;
}
void
rx_identity_free(struct rx_identity **identity)
{
rx_identity_freeContents(*identity);
rxi_Free(*identity, sizeof(struct rx_identity));
*identity = NULL;
}
/* This is a multi-purpose funciton for use by either
* GetNthIdentity or GetNthUser. The parameter 'id' indicates
* whether we are counting all identities (if true), or just
* ones which can be represented by the old-style interfaces
*/
static int
GetNthIdentityOrUser(struct afsconf_dir *dir, int count,
struct rx_identity **identity, int id)
{
bufio_p bp;
char tbuffer[1024];
struct rx_identity fileUser;
afs_int32 code;
LOCK_GLOBAL_MUTEX;
UserListFileName(dir, tbuffer, sizeof(tbuffer));
bp = BufioOpen(tbuffer, O_RDONLY, 0);
if (!bp) {
UNLOCK_GLOBAL_MUTEX;
return EIO;
}
while (1) {
code = BufioGets(bp, tbuffer, sizeof(tbuffer));
if (code < 0)
break;
code = ParseLine(tbuffer, &fileUser);
if (code != 0)
break;
if (id || fileUser.kind == RX_ID_KRB4)
count--;
if (count < 0)
break;
else
rx_identity_freeContents(&fileUser);
}
if (code == 0) {
*identity = rx_identity_copy(&fileUser);
rx_identity_freeContents(&fileUser);
}
BufioClose(bp);
UNLOCK_GLOBAL_MUTEX;
return code;
}
int
afsconf_IsSuperIdentity(struct afsconf_dir *adir,
struct rx_identity *user)
{
bufio_p bp;
char *tbuffer;
struct rx_identity fileUser;
int match;
afs_int32 code;
tbuffer = malloc(AFSDIR_PATH_MAX);
if (tbuffer == NULL)
return 0;
UserListFileName(adir, tbuffer, AFSDIR_PATH_MAX);
bp = BufioOpen(tbuffer, O_RDONLY, 0);
if (!bp) {
free(tbuffer);
return 0;
}
match = 0;
while (!match) {
code = BufioGets(bp, tbuffer, AFSDIR_PATH_MAX);
if (code < 0)
break;
code = ParseLine(tbuffer, &fileUser);
if (code != 0)
break;
match = rx_identity_match(user, &fileUser);
rx_identity_freeContents(&fileUser);
}
BufioClose(bp);
free(tbuffer);
return match;
}
int
afsconf_DeleteIdentity(struct afsconf_dir *adir, struct rx_identity *user)
{
char *filename, *nfilename;
char *buffer;
char *copy;
FILE *tf;
FILE *nf;
int flag;
char *tp;
int found;
struct stat tstat;
struct rx_identity identity;
afs_int32 code;
memset(&identity, 0, sizeof(struct rx_identity));
buffer = malloc(AFSDIR_PATH_MAX);
if (buffer == NULL)
return ENOMEM;
filename = malloc(AFSDIR_PATH_MAX);
if (filename == NULL) {
free(buffer);
return ENOMEM;
}
LOCK_GLOBAL_MUTEX;
UserListFileName(adir, filename, AFSDIR_PATH_MAX);
#ifndef AFS_NT40_ENV
{
/*
* We attempt to fully resolve this pathname, so that the rename
* of the temporary file will work even if UserList is a symlink
* into a different filesystem.
*/
nfilename = malloc(AFSDIR_PATH_MAX);
if (nfilename == NULL) {
UNLOCK_GLOBAL_MUTEX;
free(filename);
free(buffer);
return ENOMEM;
}
if (realpath(filename, nfilename)) {
free(filename);
filename = nfilename;
} else {
free(nfilename);
}
}
#endif /* AFS_NT40_ENV */
if (asprintf(&nfilename, "%s.NXX", filename) < 0) {
UNLOCK_GLOBAL_MUTEX;
free(filename);
free(buffer);
return -1;
}
tf = fopen(filename, "r");
if (!tf) {
UNLOCK_GLOBAL_MUTEX;
free(filename);
free(nfilename);
free(buffer);
return -1;
}
code = stat(filename, &tstat);
if (code < 0) {
UNLOCK_GLOBAL_MUTEX;
free(filename);
free(nfilename);
free(buffer);
return code;
}
nf = fopen(nfilename, "w+");
if (!nf) {
fclose(tf);
UNLOCK_GLOBAL_MUTEX;
free(filename);
free(nfilename);
free(buffer);
return EIO;
}
flag = 0;
found = 0;
while (1) {
/* check for our user id */
tp = fgets(buffer, AFSDIR_PATH_MAX, tf);
if (tp == NULL)
break;
copy = strdup(buffer);
if (copy == NULL) {
flag = 1;
break;
}
code = ParseLine(copy, &identity);
if (code == 0 && rx_identity_match(user, &identity)) {
/* found the guy, don't copy to output file */
found = 1;
} else {
/* otherwise copy original line to output */
fprintf(nf, "%s", buffer);
}
free(copy);
rx_identity_freeContents(&identity);
}
fclose(tf);
free(buffer);
if (ferror(nf))
flag = 1;
if (fclose(nf) == EOF)
flag = 1;
if (flag == 0) {
/* try the rename */
flag = rk_rename(nfilename, filename);
if (flag == 0)
flag = chmod(filename, tstat.st_mode);
} else
unlink(nfilename);
/* finally, decide what to return to the caller */
UNLOCK_GLOBAL_MUTEX;
free(filename);
free(nfilename);
if (flag)
return EIO; /* something mysterious went wrong */
if (!found)
return ENOENT; /* entry wasn't found, no changes made */
return 0; /* everything was fine */
}
int
afsconf_DeleteIdentity(struct afsconf_dir *adir, struct rx_identity *user)
{
char tbuffer[1024];
char nbuffer[1024];
char *copy;
FILE *tf;
FILE *nf;
int flag;
char *tp;
int found;
struct stat tstat;
struct rx_identity identity;
afs_int32 code;
memset(&identity, 0, sizeof(struct rx_identity));
LOCK_GLOBAL_MUTEX;
UserListFileName(adir, tbuffer, sizeof tbuffer);
#ifndef AFS_NT40_ENV
{
/*
* We attempt to fully resolve this pathname, so that the rename
* of the temporary file will work even if UserList is a symlink
* into a different filesystem.
*/
char resolved_path[1024];
if (realpath(tbuffer, resolved_path)) {
strcpy(tbuffer, resolved_path);
}
}
#endif /* AFS_NT40_ENV */
tf = fopen(tbuffer, "r");
if (!tf) {
UNLOCK_GLOBAL_MUTEX;
return -1;
}
code = stat(tbuffer, &tstat);
if (code < 0) {
UNLOCK_GLOBAL_MUTEX;
return code;
}
strcpy(nbuffer, tbuffer);
strcat(nbuffer, ".NXX");
nf = fopen(nbuffer, "w+");
if (!nf) {
fclose(tf);
UNLOCK_GLOBAL_MUTEX;
return EIO;
}
flag = 0;
found = 0;
while (1) {
/* check for our user id */
tp = fgets(nbuffer, sizeof(nbuffer), tf);
if (tp == NULL)
break;
copy = strdup(nbuffer);
if (copy == NULL) {
flag = 1;
break;
}
code = ParseLine(copy, &identity);
if (code == 0 && rx_identity_match(user, &identity)) {
/* found the guy, don't copy to output file */
found = 1;
} else {
/* otherwise copy original line to output */
fprintf(nf, "%s", nbuffer);
}
free(copy);
rx_identity_freeContents(&identity);
}
fclose(tf);
if (ferror(nf))
flag = 1;
if (fclose(nf) == EOF)
flag = 1;
strcpy(nbuffer, tbuffer);
strcat(nbuffer, ".NXX"); /* generate new file name again */
if (flag == 0) {
/* try the rename */
flag = rk_rename(nbuffer, tbuffer);
if (flag == 0)
flag = chmod(tbuffer, tstat.st_mode);
} else
unlink(nbuffer);
/* finally, decide what to return to the caller */
UNLOCK_GLOBAL_MUTEX;
if (flag)
return EIO; /* something mysterious went wrong */
if (!found)
return ENOENT; /* entry wasn't found, no changes made */
return 0; /* everything was fine */
}