summaryrefslogtreecommitdiff
path: root/nis/nss_compat/compat-pwd.c
diff options
context:
space:
mode:
Diffstat (limited to 'nis/nss_compat/compat-pwd.c')
-rw-r--r--nis/nss_compat/compat-pwd.c236
1 files changed, 143 insertions, 93 deletions
diff --git a/nis/nss_compat/compat-pwd.c b/nis/nss_compat/compat-pwd.c
index 38a7e2f205..c8e6f9cc8d 100644
--- a/nis/nss_compat/compat-pwd.c
+++ b/nis/nss_compat/compat-pwd.c
@@ -338,7 +338,7 @@ _nss_compat_endpwent (void)
static enum nss_status
getpwent_next_nis_netgr (const char *name, struct passwd *result, ent_t *ent,
- char *group, char *buffer, size_t buflen)
+ char *group, char *buffer, size_t buflen, int *errnop)
{
struct parser_data *data = (void *) buffer;
char *ypdomain, *host, *user, *domain, *outval, *p, *p2;
@@ -367,7 +367,8 @@ getpwent_next_nis_netgr (const char *name, struct passwd *result, ent_t *ent,
saved_cursor = ent->netgrdata.cursor;
status = __internal_getnetgrent_r (&host, &user, &domain,
- &ent->netgrdata, buffer, buflen);
+ &ent->netgrdata, buffer, buflen,
+ errnop);
if (status != 1)
{
__internal_endnetgrent (&ent->netgrdata);
@@ -395,7 +396,7 @@ getpwent_next_nis_netgr (const char *name, struct passwd *result, ent_t *ent,
p2len = pwd_need_buflen (&ent->pwd);
if (p2len > buflen)
{
- __set_errno (ERANGE);
+ *errnop = ERANGE;
return NSS_STATUS_TRYAGAIN;
}
p2 = buffer + (buflen - p2len);
@@ -404,7 +405,8 @@ getpwent_next_nis_netgr (const char *name, struct passwd *result, ent_t *ent,
while (isspace (*p))
p++;
free (outval);
- if ((parse_res = _nss_files_parse_pwent (p, result, data, buflen)) == -1)
+ parse_res = _nss_files_parse_pwent (p, result, data, buflen, errnop);
+ if (parse_res == -1)
{
ent->netgrdata.cursor = saved_cursor;
return NSS_STATUS_TRYAGAIN;
@@ -426,7 +428,7 @@ getpwent_next_nis_netgr (const char *name, struct passwd *result, ent_t *ent,
static enum nss_status
getpwent_next_nisplus_netgr (const char *name, struct passwd *result,
ent_t *ent, char *group, char *buffer,
- size_t buflen)
+ size_t buflen, int *errnop)
{
char *ypdomain, *host, *user, *domain, *p2;
int status, parse_res;
@@ -456,7 +458,8 @@ getpwent_next_nisplus_netgr (const char *name, struct passwd *result,
saved_cursor = ent->netgrdata.cursor;
status = __internal_getnetgrent_r (&host, &user, &domain,
- &ent->netgrdata, buffer, buflen);
+ &ent->netgrdata, buffer, buflen,
+ errnop);
if (status != 1)
{
__internal_endnetgrent (&ent->netgrdata);
@@ -479,7 +482,7 @@ getpwent_next_nisplus_netgr (const char *name, struct passwd *result,
p2len = pwd_need_buflen (&ent->pwd);
if (p2len > buflen)
{
- __set_errno (ERANGE);
+ *errnop = ERANGE;
return NSS_STATUS_TRYAGAIN;
}
p2 = buffer + (buflen - p2len);
@@ -494,11 +497,13 @@ getpwent_next_nisplus_netgr (const char *name, struct passwd *result,
nis_freeresult (nisres);
continue;
}
- if ((parse_res = _nss_nisplus_parse_pwent (nisres, result, buffer,
- buflen)) == -1)
+ parse_res = _nss_nisplus_parse_pwent (nisres, result, buffer,
+ buflen, errnop);
+ if (parse_res == -1)
{
nis_freeresult (nisres);
ent->netgrdata.cursor = saved_cursor;
+ *errnop = ERANGE;
return NSS_STATUS_TRYAGAIN;
}
nis_freeresult (nisres);
@@ -518,7 +523,7 @@ getpwent_next_nisplus_netgr (const char *name, struct passwd *result,
static enum nss_status
getpwent_next_nisplus (struct passwd *result, ent_t *ent, char *buffer,
- size_t buflen)
+ size_t buflen, int *errnop)
{
int parse_res;
size_t p2len;
@@ -527,7 +532,7 @@ getpwent_next_nisplus (struct passwd *result, ent_t *ent, char *buffer,
p2len = pwd_need_buflen (&ent->pwd);
if (p2len > buflen)
{
- __set_errno (ERANGE);
+ *errnop = ERANGE;
return NSS_STATUS_TRYAGAIN;
}
p2 = buffer + (buflen - p2len);
@@ -542,7 +547,7 @@ getpwent_next_nisplus (struct passwd *result, ent_t *ent, char *buffer,
saved_first = TRUE;
saved_res = ent->result;
- ent->result = nis_first_entry(pwdtable);
+ ent->result = nis_first_entry (pwdtable);
if (niserr2nss (ent->result->status) != NSS_STATUS_SUCCESS)
{
ent->nis = 0;
@@ -555,7 +560,7 @@ getpwent_next_nisplus (struct passwd *result, ent_t *ent, char *buffer,
{
nis_result *res;
- res = nis_next_entry(pwdtable, &ent->result->cookie);
+ res = nis_next_entry (pwdtable, &ent->result->cookie);
saved_res = ent->result;
saved_first = FALSE;
ent->result = res;
@@ -567,13 +572,14 @@ getpwent_next_nisplus (struct passwd *result, ent_t *ent, char *buffer,
return niserr2nss (ent->result->status);
}
}
- if ((parse_res = _nss_nisplus_parse_pwent (ent->result, result, buffer,
- buflen)) == -1)
+ parse_res = _nss_nisplus_parse_pwent (ent->result, result, buffer,
+ buflen, errnop);
+ if (parse_res == -1)
{
nis_freeresult (ent->result);
ent->result = saved_res;
ent->first = saved_first;
- __set_errno (ERANGE);
+ *errnop = ERANGE;
return NSS_STATUS_TRYAGAIN;
}
else
@@ -595,7 +601,7 @@ getpwent_next_nisplus (struct passwd *result, ent_t *ent, char *buffer,
static enum nss_status
getpwent_next_nis (struct passwd *result, ent_t *ent, char *buffer,
- size_t buflen)
+ size_t buflen, int *errnop)
{
struct parser_data *data = (void *) buffer;
char *domain, *outkey, *outval, *p, *p2;
@@ -612,7 +618,7 @@ getpwent_next_nis (struct passwd *result, ent_t *ent, char *buffer,
p2len = pwd_need_buflen (&ent->pwd);
if (p2len > buflen)
{
- __set_errno (ERANGE);
+ *errnop = ERANGE;
return NSS_STATUS_TRYAGAIN;
}
p2 = buffer + (buflen - p2len);
@@ -666,13 +672,14 @@ getpwent_next_nis (struct passwd *result, ent_t *ent, char *buffer,
while (isspace (*p))
++p;
- if ((parse_res = _nss_files_parse_pwent (p, result, data, buflen)) == -1)
+ parse_res = _nss_files_parse_pwent (p, result, data, buflen, errnop);
+ if (parse_res == -1)
{
free (ent->oldkey);
ent->oldkey = saved_oldkey;
ent->oldkeylen = saved_oldlen;
ent->first = saved_first;
- __set_errno (ERANGE);
+ *errnop = ERANGE;
return NSS_STATUS_TRYAGAIN;
}
else
@@ -680,8 +687,8 @@ getpwent_next_nis (struct passwd *result, ent_t *ent, char *buffer,
if (!saved_first)
free (saved_oldkey);
}
- if (parse_res &&
- in_blacklist (result->pw_name, strlen (result->pw_name), ent))
+ if (parse_res
+ && in_blacklist (result->pw_name, strlen (result->pw_name), ent))
parse_res = 0;
}
while (!parse_res);
@@ -694,7 +701,7 @@ getpwent_next_nis (struct passwd *result, ent_t *ent, char *buffer,
/* This function handle the +user entrys in /etc/passwd */
static enum nss_status
getpwnam_plususer (const char *name, struct passwd *result, char *buffer,
- size_t buflen)
+ size_t buflen, int *errnop)
{
struct parser_data *data = (void *) buffer;
struct passwd pwd;
@@ -709,7 +716,7 @@ getpwnam_plususer (const char *name, struct passwd *result, char *buffer,
plen = pwd_need_buflen (&pwd);
if (plen > buflen)
{
- __set_errno (ERANGE);
+ *errnop = ERANGE;
return NSS_STATUS_TRYAGAIN;
}
p = buffer + (buflen - plen);
@@ -729,11 +736,12 @@ getpwnam_plususer (const char *name, struct passwd *result, char *buffer,
nis_freeresult (res);
return status;
}
- if ((parse_res = _nss_nisplus_parse_pwent (res, result, buffer,
- buflen)) == -1)
+ parse_res = _nss_nisplus_parse_pwent (res, result, buffer,
+ buflen, errnop);
+ if (parse_res == -1)
{
nis_freeresult (res);
- __set_errno (ERANGE);
+ *errnop = ERANGE;
return NSS_STATUS_TRYAGAIN;
}
nis_freeresult (res);
@@ -744,24 +752,27 @@ getpwnam_plususer (const char *name, struct passwd *result, char *buffer,
int outvallen;
if (yp_get_default_domain (&domain) != YPERR_SUCCESS)
- return NSS_STATUS_TRYAGAIN;
+ {
+ *errnop = errno;
+ return NSS_STATUS_TRYAGAIN;
+ }
if (yp_match (domain, "passwd.byname", name, strlen (name),
&outval, &outvallen)
!= YPERR_SUCCESS)
- return NSS_STATUS_TRYAGAIN;
+ {
+ *errnop = errno;
+ return NSS_STATUS_TRYAGAIN;
+ }
ptr = strncpy (buffer, outval, buflen < (size_t) outvallen ?
buflen : (size_t) outvallen);
buffer[buflen < (size_t) outvallen ? buflen : (size_t) outvallen] = '\0';
free (outval);
while (isspace (*ptr))
ptr++;
- if ((parse_res = _nss_files_parse_pwent (ptr, result, data, buflen))
- == -1)
- {
- __set_errno (ERANGE);
- return NSS_STATUS_TRYAGAIN;
- }
+ parse_res = _nss_files_parse_pwent (ptr, result, data, buflen, errnop);
+ if (parse_res == -1)
+ return NSS_STATUS_TRYAGAIN;
}
if (parse_res > 0)
@@ -782,7 +793,7 @@ getpwnam_plususer (const char *name, struct passwd *result, char *buffer,
static enum nss_status
getpwent_next_file (struct passwd *result, ent_t *ent,
- char *buffer, size_t buflen)
+ char *buffer, size_t buflen, int *errnop)
{
struct parser_data *data = (void *) buffer;
while (1)
@@ -796,7 +807,16 @@ getpwent_next_file (struct passwd *result, ent_t *ent,
fgetpos (ent->stream, &pos);
p = fgets (buffer, buflen, ent->stream);
if (p == NULL)
- return NSS_STATUS_NOTFOUND;
+ {
+ if (feof (ent->stream))
+ return NSS_STATUS_NOTFOUND;
+ else
+ {
+ fsetpos (ent->stream, &pos);
+ *errnop = ERANGE;
+ return NSS_STATUS_TRYAGAIN;
+ }
+ }
/* Terminate the line for any case. */
buffer[buflen - 1] = '\0';
@@ -808,13 +828,14 @@ getpwent_next_file (struct passwd *result, ent_t *ent,
while (*p == '\0' || *p == '#' || /* Ignore empty and comment lines. */
/* Parse the line. If it is invalid, loop to
get the next line of the file to parse. */
- !(parse_res = _nss_files_parse_pwent (p, result, data, buflen)));
+ !(parse_res = _nss_files_parse_pwent (p, result, data, buflen,
+ errnop)));
if (parse_res == -1)
{
/* The parser ran out of space. */
fsetpos (ent->stream, &pos);
- __set_errno (ERANGE);
+ *errnop = ERANGE;
return NSS_STATUS_TRYAGAIN;
}
@@ -826,14 +847,15 @@ getpwent_next_file (struct passwd *result, ent_t *ent,
if (result->pw_name[0] == '-' && result->pw_name[1] == '@'
&& result->pw_name[2] != '\0')
{
+ /* XXX Do not use fixed length buffer. */
char buf2[1024];
char *user, *host, *domain;
struct __netgrent netgrdata;
bzero (&netgrdata, sizeof (struct __netgrent));
__internal_setnetgrent (&result->pw_name[2], &netgrdata);
- while (__internal_getnetgrent_r (&host, &user, &domain,
- &netgrdata, buf2, sizeof (buf2)))
+ while (__internal_getnetgrent_r (&host, &user, &domain, &netgrdata,
+ buf2, sizeof (buf2), errnop))
{
if (user != NULL && user[0] != '-')
blacklist_store_name (user, ent);
@@ -855,11 +877,11 @@ getpwent_next_file (struct passwd *result, ent_t *ent,
if (use_nisplus)
status = getpwent_next_nisplus_netgr (NULL, result, ent,
&result->pw_name[2],
- buffer, buflen);
+ buffer, buflen, errnop);
else
status = getpwent_next_nis_netgr (NULL, result, ent,
&result->pw_name[2],
- buffer, buflen);
+ buffer, buflen, errnop);
if (status == NSS_STATUS_RETURN)
continue;
else
@@ -884,14 +906,22 @@ getpwent_next_file (struct passwd *result, ent_t *ent,
/etc/passwd */
blacklist_store_name (&result->pw_name[1], ent);
status = getpwnam_plususer (&result->pw_name[1], result, buffer,
- buflen);
+ buflen, errnop);
if (status == NSS_STATUS_SUCCESS) /* We found the entry. */
break;
else
if (status == NSS_STATUS_RETURN) /* We couldn't parse the entry */
continue;
else
- return status;
+ {
+ if (status == NSS_STATUS_TRYAGAIN)
+ {
+ /* The parser ran out of space */
+ fsetpos (ent->stream, &pos);
+ *errnop = ERANGE;
+ }
+ return status;
+ }
}
/* +:... */
@@ -902,9 +932,9 @@ getpwent_next_file (struct passwd *result, ent_t *ent,
copy_pwd_changes (&ent->pwd, result, NULL, 0);
if (use_nisplus)
- return getpwent_next_nisplus (result, ent, buffer, buflen);
+ return getpwent_next_nisplus (result, ent, buffer, buflen, errnop);
else
- return getpwent_next_nis (result, ent, buffer, buflen);
+ return getpwent_next_nis (result, ent, buffer, buflen, errnop);
}
}
@@ -914,7 +944,7 @@ getpwent_next_file (struct passwd *result, ent_t *ent,
static enum nss_status
internal_getpwent_r (struct passwd *pw, ent_t *ent, char *buffer,
- size_t buflen)
+ size_t buflen, int *errnop)
{
if (ent->netgroup)
{
@@ -924,11 +954,12 @@ internal_getpwent_r (struct passwd *pw, ent_t *ent, char *buffer,
/* Since this is not the first call, we don't need the group name */
if (use_nisplus)
status = getpwent_next_nisplus_netgr (NULL, pw, ent, NULL, buffer,
- buflen);
+ buflen, errnop);
else
- status = getpwent_next_nis_netgr (NULL, pw, ent, NULL, buffer, buflen);
+ status = getpwent_next_nis_netgr (NULL, pw, ent, NULL, buffer, buflen,
+ errnop);
if (status == NSS_STATUS_RETURN)
- return getpwent_next_file (pw, ent, buffer, buflen);
+ return getpwent_next_file (pw, ent, buffer, buflen, errnop);
else
return status;
}
@@ -936,16 +967,17 @@ internal_getpwent_r (struct passwd *pw, ent_t *ent, char *buffer,
if (ent->nis)
{
if (use_nisplus)
- return getpwent_next_nisplus (pw, ent, buffer, buflen);
+ return getpwent_next_nisplus (pw, ent, buffer, buflen, errnop);
else
- return getpwent_next_nis (pw, ent, buffer, buflen);
+ return getpwent_next_nis (pw, ent, buffer, buflen, errnop);
}
else
- return getpwent_next_file (pw, ent, buffer, buflen);
+ return getpwent_next_file (pw, ent, buffer, buflen, errnop);
}
enum nss_status
-_nss_compat_getpwent_r (struct passwd *pwd, char *buffer, size_t buflen)
+_nss_compat_getpwent_r (struct passwd *pwd, char *buffer, size_t buflen,
+ int *errnop)
{
enum nss_status status = NSS_STATUS_SUCCESS;
@@ -962,7 +994,7 @@ _nss_compat_getpwent_r (struct passwd *pwd, char *buffer, size_t buflen)
status = internal_setpwent (&ext_ent);
if (status == NSS_STATUS_SUCCESS)
- status = internal_getpwent_r (pwd, &ext_ent, buffer, buflen);
+ status = internal_getpwent_r (pwd, &ext_ent, buffer, buflen, errnop);
__libc_lock_unlock (lock);
@@ -972,7 +1004,7 @@ _nss_compat_getpwent_r (struct passwd *pwd, char *buffer, size_t buflen)
/* Searches in /etc/passwd and the NIS/NIS+ map for a special user */
static enum nss_status
internal_getpwnam_r (const char *name, struct passwd *result, ent_t *ent,
- char *buffer, size_t buflen)
+ char *buffer, size_t buflen, int *errnop)
{
struct parser_data *data = (void *) buffer;
@@ -992,7 +1024,8 @@ internal_getpwnam_r (const char *name, struct passwd *result, ent_t *ent,
return NSS_STATUS_NOTFOUND;
else
{
- __set_errno (ERANGE);
+ fsetpos (ent->stream, &pos);
+ *errnop = ERANGE;
return NSS_STATUS_TRYAGAIN;
}
}
@@ -1007,13 +1040,14 @@ internal_getpwnam_r (const char *name, struct passwd *result, ent_t *ent,
while (*p == '\0' || *p == '#' || /* Ignore empty and comment lines. */
/* Parse the line. If it is invalid, loop to
get the next line of the file to parse. */
- !(parse_res = _nss_files_parse_pwent (p, result, data, buflen)));
+ !(parse_res = _nss_files_parse_pwent (p, result, data, buflen,
+ errnop)));
if (parse_res == -1)
{
/* The parser ran out of space. */
fsetpos (ent->stream, &pos);
- __set_errno (ERANGE);
+ *errnop = ERANGE;
return NSS_STATUS_TRYAGAIN;
}
@@ -1030,14 +1064,15 @@ internal_getpwnam_r (const char *name, struct passwd *result, ent_t *ent,
if (result->pw_name[0] == '-' && result->pw_name[1] == '@'
&& result->pw_name[2] != '\0')
{
+ /* XXX Do not use fixed length buffers. */
char buf2[1024];
char *user, *host, *domain;
struct __netgrent netgrdata;
bzero (&netgrdata, sizeof (struct __netgrent));
__internal_setnetgrent (&result->pw_name[2], &netgrdata);
- while (__internal_getnetgrent_r (&host, &user, &domain,
- &netgrdata, buf2, sizeof (buf2)))
+ while (__internal_getnetgrent_r (&host, &user, &domain, &netgrdata,
+ buf2, sizeof (buf2), errnop))
{
if (user != NULL && user[0] != '-')
if (strcmp (user, name) == 0)
@@ -1063,10 +1098,10 @@ internal_getpwnam_r (const char *name, struct passwd *result, ent_t *ent,
{
if (use_nisplus)
status = getpwent_next_nisplus_netgr (name, result, ent, buf,
- buffer, buflen);
+ buffer, buflen, errnop);
else
status = getpwent_next_nis_netgr (name, result, ent, buf,
- buffer, buflen);
+ buffer, buflen, errnop);
if (status == NSS_STATUS_RETURN)
continue;
@@ -1095,7 +1130,8 @@ internal_getpwnam_r (const char *name, struct passwd *result, ent_t *ent,
{
enum nss_status status;
- status = getpwnam_plususer (name, result, buffer, buflen);
+ status = getpwnam_plususer (name, result, buffer, buflen,
+ errnop);
if (status == NSS_STATUS_RETURN)
/* We couldn't parse the entry */
return NSS_STATUS_NOTFOUND;
@@ -1109,7 +1145,7 @@ internal_getpwnam_r (const char *name, struct passwd *result, ent_t *ent,
{
enum nss_status status;
- status = getpwnam_plususer (name, result, buffer, buflen);
+ status = getpwnam_plususer (name, result, buffer, buflen, errnop);
if (status == NSS_STATUS_SUCCESS) /* We found the entry. */
break;
else
@@ -1124,7 +1160,7 @@ internal_getpwnam_r (const char *name, struct passwd *result, ent_t *ent,
enum nss_status
_nss_compat_getpwnam_r (const char *name, struct passwd *pwd,
- char *buffer, size_t buflen)
+ char *buffer, size_t buflen, int *errnop)
{
ent_t ent = {0, 0, 0, NULL, 0, NULL, NULL, {NULL, 0, 0},
{NULL, NULL, 0, 0, NULL, NULL, NULL}};
@@ -1147,7 +1183,7 @@ _nss_compat_getpwnam_r (const char *name, struct passwd *pwd,
if (status != NSS_STATUS_SUCCESS)
return status;
- status = internal_getpwnam_r (name, pwd, &ent, buffer, buflen);
+ status = internal_getpwnam_r (name, pwd, &ent, buffer, buflen, errnop);
internal_endpwent (&ent);
@@ -1157,7 +1193,7 @@ _nss_compat_getpwnam_r (const char *name, struct passwd *pwd,
/* This function handle the + entry in /etc/passwd for getpwuid */
static enum nss_status
getpwuid_plususer (uid_t uid, struct passwd *result, char *buffer,
- size_t buflen)
+ size_t buflen, int *errnop)
{
struct parser_data *data = (void *) buffer;
struct passwd pwd;
@@ -1172,7 +1208,7 @@ getpwuid_plususer (uid_t uid, struct passwd *result, char *buffer,
plen = pwd_need_buflen (&pwd);
if (plen > buflen)
{
- __set_errno (ERANGE);
+ *errnop = ERANGE;
return NSS_STATUS_TRYAGAIN;
}
p = buffer + (buflen - plen);
@@ -1183,7 +1219,7 @@ getpwuid_plususer (uid_t uid, struct passwd *result, char *buffer,
nis_result *res;
char buf[1024 + pwdtablelen];
- sprintf(buf, "[uid=%d],%s", uid, pwdtable);
+ snprintf(buf, sizeof (buf), "[uid=%d],%s", uid, pwdtable);
res = nis_list(buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL);
if (niserr2nss (res->status) != NSS_STATUS_SUCCESS)
{
@@ -1193,10 +1229,10 @@ getpwuid_plususer (uid_t uid, struct passwd *result, char *buffer,
return status;
}
if ((parse_res = _nss_nisplus_parse_pwent (res, result, buffer,
- buflen)) == -1)
+ buflen, errnop)) == -1)
{
nis_freeresult (res);
- __set_errno (ERANGE);
+ *errnop = ERANGE;
return NSS_STATUS_TRYAGAIN;
}
nis_freeresult (res);
@@ -1208,25 +1244,28 @@ getpwuid_plususer (uid_t uid, struct passwd *result, char *buffer,
int outvallen;
if (yp_get_default_domain (&domain) != YPERR_SUCCESS)
- return NSS_STATUS_TRYAGAIN;
+ {
+ *errnop = errno;
+ return NSS_STATUS_TRYAGAIN;
+ }
sprintf (buf, "%d", uid);
if (yp_match (domain, "passwd.byuid", buf, strlen (buf),
&outval, &outvallen)
!= YPERR_SUCCESS)
- return NSS_STATUS_TRYAGAIN;
+ {
+ *errnop = errno;
+ return NSS_STATUS_TRYAGAIN;
+ }
ptr = strncpy (buffer, outval, buflen < (size_t) outvallen ?
buflen : (size_t) outvallen);
buffer[buflen < (size_t) outvallen ? buflen : (size_t) outvallen] = '\0';
free (outval);
while (isspace (*ptr))
ptr++;
- if ((parse_res = _nss_files_parse_pwent (ptr, result, data, buflen))
- == -1)
- {
- __set_errno (ERANGE);
- return NSS_STATUS_TRYAGAIN;
- }
+ parse_res = _nss_files_parse_pwent (ptr, result, data, buflen, errnop);
+ if (parse_res == -1)
+ return NSS_STATUS_TRYAGAIN;
}
if (parse_res > 0)
@@ -1248,7 +1287,7 @@ getpwuid_plususer (uid_t uid, struct passwd *result, char *buffer,
/* Searches in /etc/passwd and the NIS/NIS+ map for a special user id */
static enum nss_status
internal_getpwuid_r (uid_t uid, struct passwd *result, ent_t *ent,
- char *buffer, size_t buflen)
+ char *buffer, size_t buflen, int *errnop)
{
struct parser_data *data = (void *) buffer;
@@ -1263,7 +1302,16 @@ internal_getpwuid_r (uid_t uid, struct passwd *result, ent_t *ent,
fgetpos (ent->stream, &pos);
p = fgets (buffer, buflen, ent->stream);
if (p == NULL)
- return NSS_STATUS_NOTFOUND;
+ {
+ if (feof (ent->stream))
+ return NSS_STATUS_NOTFOUND;
+ else
+ {
+ fsetpos (ent->stream, &pos);
+ *errnop = ERANGE;
+ return NSS_STATUS_TRYAGAIN;
+ }
+ }
/* Terminate the line for any case. */
buffer[buflen - 1] = '\0';
@@ -1275,13 +1323,14 @@ internal_getpwuid_r (uid_t uid, struct passwd *result, ent_t *ent,
while (*p == '\0' || *p == '#' || /* Ignore empty and comment lines. */
/* Parse the line. If it is invalid, loop to
get the next line of the file to parse. */
- !(parse_res = _nss_files_parse_pwent (p, result, data, buflen)));
+ !(parse_res = _nss_files_parse_pwent (p, result, data, buflen,
+ errnop)));
if (parse_res == -1)
{
/* The parser ran out of space. */
fsetpos (ent->stream, &pos);
- __set_errno (ERANGE);
+ *errnop = ERANGE;
return NSS_STATUS_TRYAGAIN;
}
@@ -1298,14 +1347,15 @@ internal_getpwuid_r (uid_t uid, struct passwd *result, ent_t *ent,
if (result->pw_name[0] == '-' && result->pw_name[1] == '@'
&& result->pw_name[2] != '\0')
{
+ /* XXX Do not use fixed length buffers. */
char buf2[1024];
char *user, *host, *domain;
struct __netgrent netgrdata;
bzero (&netgrdata, sizeof (struct __netgrent));
__internal_setnetgrent (&result->pw_name[2], &netgrdata);
- while (__internal_getnetgrent_r (&host, &user, &domain,
- &netgrdata, buf2, sizeof (buf2)))
+ while (__internal_getnetgrent_r (&host, &user, &domain, &netgrdata,
+ buf2, sizeof (buf2), errnop))
{
if (user != NULL && user[0] != '-')
blacklist_store_name (user, ent);
@@ -1330,10 +1380,10 @@ internal_getpwuid_r (uid_t uid, struct passwd *result, ent_t *ent,
{
if (use_nisplus)
status = getpwent_next_nisplus_netgr (NULL, result, ent, buf,
- buffer, buflen);
+ buffer, buflen, errnop);
else
status = getpwent_next_nis_netgr (NULL, result, ent, buf,
- buffer, buflen);
+ buffer, buflen, errnop);
if (status == NSS_STATUS_RETURN)
continue;
@@ -1361,7 +1411,7 @@ internal_getpwuid_r (uid_t uid, struct passwd *result, ent_t *ent,
/etc/passwd */
blacklist_store_name (&result->pw_name[1], ent);
status = getpwnam_plususer (&result->pw_name[1], result, buffer,
- buflen);
+ buflen, errnop);
if (status == NSS_STATUS_SUCCESS && result->pw_uid == uid)
break;
else
@@ -1373,7 +1423,7 @@ internal_getpwuid_r (uid_t uid, struct passwd *result, ent_t *ent,
{
enum nss_status status;
- status = getpwuid_plususer (uid, result, buffer, buflen);
+ status = getpwuid_plususer (uid, result, buffer, buflen, errnop);
if (status == NSS_STATUS_SUCCESS) /* We found the entry. */
break;
else
@@ -1388,7 +1438,7 @@ internal_getpwuid_r (uid_t uid, struct passwd *result, ent_t *ent,
enum nss_status
_nss_compat_getpwuid_r (uid_t uid, struct passwd *pwd,
- char *buffer, size_t buflen)
+ char *buffer, size_t buflen, int *errnop)
{
ent_t ent = {0, 0, 0, NULL, 0, NULL, NULL, {NULL, 0, 0},
{NULL, NULL, 0, 0, NULL, NULL, NULL}};
@@ -1408,7 +1458,7 @@ _nss_compat_getpwuid_r (uid_t uid, struct passwd *pwd,
if (status != NSS_STATUS_SUCCESS)
return status;
- status = internal_getpwuid_r (uid, pwd, &ent, buffer, buflen);
+ status = internal_getpwuid_r (uid, pwd, &ent, buffer, buflen, errnop);
internal_endpwent (&ent);
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-27 20:02:35 +0000