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authorUlrich Drepper <drepper@redhat.com>1997-07-22 00:10:33 +0000
committerUlrich Drepper <drepper@redhat.com>1997-07-22 00:10:33 +0000
commit60c966358ed6fa6ce3ded5426f46232cbfd8e0fd (patch)
tree2edfd4ad681692a2dbfdfcabaead5bca25ed2be5 /nis/nss_compat
parent907a1bacf996264c3197342cfc565b1d4f840bfb (diff)
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1997-07-22 01:35 Ulrich Drepper <drepper@cygnus.com> * Makerules (+make-deps): Use $(CFLAGS) in run of $(+mkdep) so that optimizing is also selected for dependency generation. * configure.in: Add machine description for TI c[34]x. * inet/Makefile (routines): Remove ntohl and ntohs. * inet/netinet/in.h: Use optimized version of hton? and ntoh? for little endian machines. * sysdeps/alpha/ntohl.s: Removed. * sysdeps/alpha/ntohs.s: Removed. * sysdeps/generic/ntohl.c: Removed. * sysdeps/generic/ntohs.c: Removed. * sysdeps/generic/htonl.c: Add aliases for ntohl. * sysdeps/vax/htonl.s: Likewise. * sysdeps/generic/htons.c: Add aliases for ntohs. * sysdeps/vax/htons.s: Likewise. * sysdeps/vax/ntohl.s: Removed. * sysdeps/vax/ntohs.s: Removed. * sysdeps/generic/bits/htontoh.h: New file. * sysdeps/i386/htonl.S: New file. * sysdeps/i386/htons.S: New file. * sysdeps/i386/i486/htonl.S: New file. * sysdeps/i386/fpu/bits/mathinline.h: Correct and optimized compare macros. * sysdeps/mips/dl-machine.h: Remove mips64 dependent parts. * sysdeps/mips/mips64/dl-machine.h: New file. * sysdeps/unix/sysv/linux/Makefile (sysdep_headers): Don't install syscall-list.h. 1997-07-12 Andreas Jaeger <aj@arthur.rhein-neckar.de> * libc.map: Add missing symbol _obstack. 1997-07-14 08:22 H.J. Lu <hjl@gnu.ai.mit.edu> * sysdeps/mips/rtld-parms: New. * sysdeps/unix/sysv/linux/mips/lxstat.h: Moved to * sysdeps/unix/sysv/linux/mips/lxstat.c: ...this. * sysdeps/unix/sysv/linux/mips/sgidef.h: Moved to * sysdeps/unix/sysv/linux/mips/sgidefs.h: ...this. * sysdeps/generic/dl-sysdep.c (_start): Change to ENTRY_POINT. 1997-07-17 08:39 H.J. Lu <hjl@gnu.ai.mit.edu> * sysdeps/mips/dl-machine.h: Remove extra stuff. 1997-07-06 07:18 Geoff Keating <geoffk@ozemail.com.au> * sysdeps/powerpc/bits/endian.h: Handle multiple endianess. * stdlib/grouping.h: Suppress gcc warning about testing unsigned char for less-than-zero. * stdio-common/printf_fp.c: Likewise. * stdio-common/vfprintf.c: Likewise. * sysdeps/powerpc/add_n.s: New file. * sysdeps/powerpc/sub_n.s: New file. * sysdeps/powerpc/lshift.s: Ported XCOFF->ELF (from GMP). * sysdeps/powerpc/mul_1.s: Ported XCOFF->ELF (from GMP). * sysdeps/powerpc/addmul_1.s: Ported XCOFF->ELF (from GMP). * sysdeps/powerpc/submul_1.s: Ported XCOFF->ELF (from GMP). * sysdeps/powerpc/rshift.s: Ported XCOFF->ELF (from GMP). * math/libm-test.c (cos_test, sin_test, sincos_test): Use precomputed pi/6 rather than having gcc calculate it, otherwise tests give inaccurate result due to inaccurate input. * math/libm.map: Add __fe_*_env constants to list of exported symbols. * sysdeps/libm-ieee754/s_isinf.c: Simplify, make faster. * sysdeps/libm-ieee754/s_isinff.c: Simplify, make faster. * sysdeps/libm-ieee754/s_atan2f.c: Correct value of pi to be correct round-to-nearest value. * sysdeps/libm-ieee754/e_log.c: Make sure exceptions are raised. * sysdeps/libm-ieee754/e_log10.c: Likewise. * sysdeps/libm-ieee754/e_log10f.c: Likewise. * sysdeps/libm-ieee754/e_logf.c: Likewise. * sysdeps/libm-ieee754/s_log1p.c: Likewise. Also use correct -Inf. * sysdeps/libm-ieee754/s_log1pf.c: Likewise. Also use correct -Inf. * sysdeps/libm-ieee754/s_log2.c: Likewise. * sysdeps/libm-ieee754/s_log2f.c: Likewise. 1997-07-15 21:54 Thorsten Kukuk <kukuk@vt.uni-paderborn.de> * nis/nss_compat/compat-grp.c: Fix "buffer to small" problems and memory leaks. * nis/nss_compat/compat-pwd.c: Likewise. * nis/nss_compat/compat-spwd.c: Likewise. * nis/nss_nis/nis-alias.c: Likewise. * nis/nss_nis/nis-ethers.c: Likewise. * nis/nss_nis/nis-grp.c: Likewise. * nis/nss_nis/nis-hosts.c: Likewise. * nis/nss_nis/nis-network.c: Likewise. * nis/nss_nis/nis-proto.c: Likewise. * nis/nss_nis/nis-pwd.c: Likewise. * nis/nss_nis/nis-rpc.c: Likewise. * nis/nss_nis/nis-service.c: Likewise. * nis/nss_nis/nis-spwd.c: Likewise. * nis/nss_nisplus-alias.c: Likewise. * nis/nss_nisplus-ethers.c: Likewise. * nis/nss_nisplus-grp.c: Likewise. * nis/nss_nisplus-hosts.c: Likewise. * nis/nss_nisplus-netgrp.c: Likewise. * nis/nss_nisplus-network.c: Likewise. * nis/nss_nisplus-proto.c: Likewise. * nis/nss_nisplus-pwd.c: Likewise. * nis/nss_nisplus-rpc.c: Likewise. * nis/nss_nisplus-service.c: Likewise. * nis/nss_nisplus-spwd.c: Likewise. * nis/nss_nisplus-parse.c: If buffer to small, give -1 back. 1997-07-20 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/m68k/dl-machine.h (elf_machine_rela): Mention program name in warning message. * sysdeps/powerpc/dl-machine.h (elf_machine_rela): Likewise. * sysdeps/sparc/dl-machine.h (elf_machine_rela): Likewise. * sysdeps/sparc64/dl-machine.h (elf_machine_rela): Likewise. * sysdeps/i386/dl-machine.h (elf_machine_rel): Print program name first. 1997-07-20 19:33 Thorsten Kukuk <kukuk@vt.uni-paderborn.de> * libc.map: Add _null_auth and _seterr_reply. * sunrpc/clnt_udp.c (clntudp_call): If xargs is NULL, don't encode it.
Diffstat (limited to 'nis/nss_compat')
-rw-r--r--nis/nss_compat/compat-grp.c94
-rw-r--r--nis/nss_compat/compat-pwd.c123
-rw-r--r--nis/nss_compat/compat-spwd.c104
3 files changed, 275 insertions, 46 deletions
diff --git a/nis/nss_compat/compat-grp.c b/nis/nss_compat/compat-grp.c
index 59165ea..9726784 100644
--- a/nis/nss_compat/compat-grp.c
+++ b/nis/nss_compat/compat-grp.c
@@ -218,6 +218,10 @@ getgrent_next_nis (struct group *result, ent_t *ent, char *buffer,
do
{
+ char *save_oldkey;
+ int save_oldlen;
+ bool_t save_nis_first;
+
if (ent->nis_first)
{
if (yp_first (domain, "group.byname", &outkey, &outkeylen,
@@ -226,7 +230,9 @@ getgrent_next_nis (struct group *result, ent_t *ent, char *buffer,
ent->nis = 0;
return NSS_STATUS_UNAVAIL;
}
-
+ save_oldkey = ent->oldkey;
+ save_oldlen = ent->oldkeylen;
+ save_nis_first = TRUE;
ent->oldkey = outkey;
ent->oldkeylen = outkeylen;
ent->nis_first = FALSE;
@@ -241,7 +247,9 @@ getgrent_next_nis (struct group *result, ent_t *ent, char *buffer,
return NSS_STATUS_NOTFOUND;
}
- free (ent->oldkey);
+ save_oldkey = ent->oldkey;
+ save_oldlen = ent->oldkeylen;
+ save_nis_first = FALSE;
ent->oldkey = outkey;
ent->oldkeylen = outkeylen;
}
@@ -255,8 +263,21 @@ getgrent_next_nis (struct group *result, ent_t *ent, char *buffer,
while (isspace (*p))
++p;
- parse_res = _nss_files_parse_grent (p, result, data, buflen);
-
+ if ((parse_res = _nss_files_parse_grent (p, result, data, buflen)) == -1)
+ {
+ free (ent->oldkey);
+ ent->oldkey = save_oldkey;
+ ent->oldkeylen = save_oldlen;
+ ent->nis_first = save_nis_first;
+ __set_errno (ERANGE);
+ return NSS_STATUS_TRYAGAIN;
+ }
+ else
+ {
+ if (!save_nis_first)
+ free (save_oldkey);
+ }
+
if (parse_res &&
in_blacklist (result->gr_name, strlen (result->gr_name), ent))
parse_res = 0; /* if result->gr_name in blacklist,search next entry */
@@ -274,8 +295,13 @@ getgrent_next_nisplus (struct group *result, ent_t *ent, char *buffer,
do
{
+ nis_result *save_oldres;
+ bool_t save_nis_first;
+
if (ent->nis_first)
{
+ save_oldres = ent->result;
+ save_nis_first = TRUE;
ent->result = nis_first_entry(grptable);
if (niserr2nss (ent->result->status) != NSS_STATUS_SUCCESS)
{
@@ -288,8 +314,9 @@ getgrent_next_nisplus (struct group *result, ent_t *ent, char *buffer,
{
nis_result *res;
+ save_oldres = ent->result;
+ save_nis_first = FALSE;
res = nis_next_entry(grptable, &ent->result->cookie);
- nis_freeresult (ent->result);
ent->result = res;
if (niserr2nss (ent->result->status) != NSS_STATUS_SUCCESS)
{
@@ -297,8 +324,21 @@ getgrent_next_nisplus (struct group *result, ent_t *ent, char *buffer,
return niserr2nss (ent->result->status);
}
}
- parse_res = _nss_nisplus_parse_grent (ent->result, 0, result, buffer,
- buflen);
+ if ((parse_res = _nss_nisplus_parse_grent (ent->result, 0, result,
+ buffer, buflen)) == -1)
+ {
+ nis_freeresult (ent->result);
+ ent->result = save_oldres;
+ ent->nis_first = save_nis_first;
+ __set_errno (ERANGE);
+ return NSS_STATUS_TRYAGAIN;
+ }
+ else
+ {
+ if (!save_nis_first)
+ nis_freeresult (save_oldres);
+ }
+
if (parse_res &&
in_blacklist (result->gr_name, strlen (result->gr_name), ent))
parse_res = 0; /* if result->gr_name in blacklist,search next entry */
@@ -330,7 +370,13 @@ getgrent_next_file_plusgroup (struct group *result, char *buffer,
nis_freeresult (res);
return status;
}
- parse_res = _nss_nisplus_parse_grent (res, 0, result, buffer, buflen);
+ if ((parse_res = _nss_nisplus_parse_grent (res, 0, result, buffer,
+ buflen)) == -1)
+ {
+ __set_errno (ERANGE);
+ nis_freeresult (res);
+ return NSS_STATUS_TRYAGAIN;
+ }
nis_freeresult (res);
}
else /* Use NIS */
@@ -350,7 +396,11 @@ getgrent_next_file_plusgroup (struct group *result, char *buffer,
free (outval);
while (isspace (*p))
p++;
- parse_res = _nss_files_parse_grent (p, result, data, buflen);
+ if ((parse_res = _nss_files_parse_grent (p, result, data, buflen)) == -1)
+ {
+ __set_errno (ERANGE);
+ return NSS_STATUS_TRYAGAIN;
+ }
}
if (parse_res)
@@ -368,13 +418,24 @@ getgrent_next_file (struct group *result, ent_t *ent,
struct parser_data *data = (void *) buffer;
while (1)
{
+ fpos_t pos;
+ int parse_res = 0;
char *p;
do
{
+ 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
+ {
+ __set_errno (ERANGE);
+ return NSS_STATUS_TRYAGAIN;
+ }
+ }
/* Terminate the line for any case. */
buffer[buflen - 1] = '\0';
@@ -383,11 +444,18 @@ getgrent_next_file (struct group *result, ent_t *ent,
while (isspace (*p))
++p;
}
- /* Ignore empty and comment lines. */
- while (*p == '\0' || *p == '#' ||
+ 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. */
- !_nss_files_parse_grent (p, result, data, buflen));
+ !(parse_res = _nss_files_parse_grent (p, result, data, buflen)));
+
+ if (parse_res == -1)
+ {
+ /* The parser ran out of space. */
+ fsetpos (ent->stream, &pos);
+ __set_errno (ERANGE);
+ return NSS_STATUS_TRYAGAIN;
+ }
if (result->gr_name[0] != '+' && result->gr_name[0] != '-')
/* This is a real entry. */
diff --git a/nis/nss_compat/compat-pwd.c b/nis/nss_compat/compat-pwd.c
index 0d0f2a6..af12679 100644
--- a/nis/nss_compat/compat-pwd.c
+++ b/nis/nss_compat/compat-pwd.c
@@ -272,6 +272,9 @@ internal_endpwent (ent_t *ent)
ent->stream = NULL;
}
+ if (ent->netgroup)
+ __internal_endnetgrent (&ent->netgrdata);
+
ent->nis = ent->first = ent->netgroup = 0;
if (ent->oldkey != NULL)
@@ -303,9 +306,6 @@ _nss_compat_endpwent (void)
__libc_lock_lock (lock);
- if (ext_ent.netgroup)
- __internal_endnetgrent (&ext_ent.netgrdata);
-
result = internal_endpwent (&ext_ent);
__libc_lock_unlock (lock);
@@ -339,6 +339,10 @@ getpwent_next_nis_netgr (struct passwd *result, ent_t *ent, char *group,
while (1)
{
+ char *saved_cursor;
+ int parse_res;
+
+ saved_cursor = ent->netgrdata.cursor;
status = __internal_getnetgrent_r (&host, &user, &domain,
&ent->netgrdata, buffer, buflen);
if (status != 1)
@@ -372,7 +376,13 @@ getpwent_next_nis_netgr (struct passwd *result, ent_t *ent, char *group,
while (isspace (*p))
p++;
free (outval);
- if (_nss_files_parse_pwent (p, result, data, buflen))
+ if ((parse_res = _nss_files_parse_pwent (p, result, data, buflen)) == -1)
+ {
+ ent->netgrdata.cursor = saved_cursor;
+ return NSS_STATUS_TRYAGAIN;
+ }
+
+ if (parse_res)
{
copy_pwd_changes (result, &ent->pwd, p2, p2len);
break;
@@ -410,6 +420,9 @@ getpwent_next_nisplus_netgr (struct passwd *result, ent_t *ent, char *group,
while (1)
{
+ char *saved_cursor;
+
+ saved_cursor = ent->netgrdata.cursor;
status = __internal_getnetgrent_r (&host, &user, &domain,
&ent->netgrdata, buffer, buflen);
if (status != 1)
@@ -419,13 +432,13 @@ getpwent_next_nisplus_netgr (struct passwd *result, ent_t *ent, char *group,
give_pwd_free (&ent->pwd);
return NSS_STATUS_RETURN;
}
-
+
if (user == NULL || user[0] == '-')
continue;
-
+
if (domain != NULL && strcmp (ypdomain, domain) != 0)
continue;
-
+
p2len = pwd_need_buflen (&ent->pwd);
if (p2len > buflen)
{
@@ -444,7 +457,13 @@ getpwent_next_nisplus_netgr (struct passwd *result, ent_t *ent, char *group,
nis_freeresult (nisres);
continue;
}
- parse_res = _nss_nisplus_parse_pwent (nisres, result, buffer, buflen);
+ if ((parse_res = _nss_nisplus_parse_pwent (nisres, result, buffer,
+ buflen)) == -1)
+ {
+ nis_freeresult (nisres);
+ ent->netgrdata.cursor = saved_cursor;
+ return NSS_STATUS_TRYAGAIN;
+ }
nis_freeresult (nisres);
if (parse_res)
@@ -485,8 +504,14 @@ getpwent_next_nisplus (struct passwd *result, ent_t *ent, char *buffer,
buflen -= p2len;
do
{
+ bool_t saved_first;
+ nis_result *saved_res;
+
if (ent->first)
{
+ saved_first = TRUE;
+ saved_res = ent->result;
+
ent->result = nis_first_entry(pwdtable);
if (niserr2nss (ent->result->status) != NSS_STATUS_SUCCESS)
{
@@ -501,17 +526,32 @@ getpwent_next_nisplus (struct passwd *result, ent_t *ent, char *buffer,
nis_result *res;
res = nis_next_entry(pwdtable, &ent->result->cookie);
- nis_freeresult (ent->result);
+ saved_res = ent->result;
+ saved_first = FALSE;
ent->result = res;
if (niserr2nss (ent->result->status) != NSS_STATUS_SUCCESS)
{
ent->nis = 0;
+ nis_freeresult (saved_res);
give_pwd_free (&ent->pwd);
return niserr2nss (ent->result->status);
}
}
- parse_res = _nss_nisplus_parse_pwent (ent->result, result, buffer,
- buflen);
+ if ((parse_res = _nss_nisplus_parse_pwent (ent->result, result, buffer,
+ buflen)) == -1)
+ {
+ nis_freeresult (ent->result);
+ ent->result = saved_res;
+ ent->first = saved_first;
+ __set_errno (ERANGE);
+ return NSS_STATUS_TRYAGAIN;
+ }
+ else
+ {
+ if (!saved_first)
+ nis_freeresult (saved_res);
+ }
+
if (parse_res &&
in_blacklist (result->pw_name, strlen (result->pw_name), ent))
parse_res = 0; /* if result->pw_name in blacklist,search next entry */
@@ -549,6 +589,10 @@ getpwent_next_nis (struct passwd *result, ent_t *ent, char *buffer,
buflen -= p2len;
do
{
+ bool_t saved_first;
+ char *saved_oldkey;
+ int saved_oldlen;
+
if (ent->first)
{
if (yp_first (domain, "passwd.byname", &outkey, &outkeylen,
@@ -558,7 +602,10 @@ getpwent_next_nis (struct passwd *result, ent_t *ent, char *buffer,
give_pwd_free (&ent->pwd);
return NSS_STATUS_UNAVAIL;
}
-
+
+ saved_first = TRUE;
+ saved_oldkey = ent->oldkey;
+ saved_oldlen = ent->oldkeylen;
ent->oldkey = outkey;
ent->oldkeylen = outkeylen;
ent->first = FALSE;
@@ -574,7 +621,9 @@ getpwent_next_nis (struct passwd *result, ent_t *ent, char *buffer,
return NSS_STATUS_NOTFOUND;
}
- free (ent->oldkey);
+ saved_first = FALSE;
+ saved_oldkey = ent->oldkey;
+ saved_oldlen = ent->oldkeylen;
ent->oldkey = outkey;
ent->oldkeylen = outkeylen;
}
@@ -587,7 +636,20 @@ getpwent_next_nis (struct passwd *result, ent_t *ent, char *buffer,
while (isspace (*p))
++p;
- parse_res = _nss_files_parse_pwent (p, result, data, buflen);
+ if ((parse_res = _nss_files_parse_pwent (p, result, data, buflen)) == -1)
+ {
+ free (ent->oldkey);
+ ent->oldkey = saved_oldkey;
+ ent->oldkeylen = saved_oldlen;
+ ent->first = saved_first;
+ __set_errno (ERANGE);
+ return NSS_STATUS_TRYAGAIN;
+ }
+ else
+ {
+ if (!saved_first)
+ free (saved_oldkey);
+ }
if (parse_res &&
in_blacklist (result->pw_name, strlen (result->pw_name), ent))
parse_res = 0;
@@ -637,7 +699,13 @@ getpwent_next_file_plususer (struct passwd *result, char *buffer,
nis_freeresult (res);
return status;
}
- parse_res = _nss_nisplus_parse_pwent (res, result, buffer, buflen);
+ if ((parse_res = _nss_nisplus_parse_pwent (res, result, buffer,
+ buflen)) == -1)
+ {
+ nis_freeresult (res);
+ __set_errno (ERANGE);
+ return NSS_STATUS_TRYAGAIN;
+ }
nis_freeresult (res);
}
else /* Use NIS */
@@ -645,10 +713,10 @@ getpwent_next_file_plususer (struct passwd *result, char *buffer,
char *domain;
char *outval;
int outvallen;
-
+
if (yp_get_default_domain (&domain) != YPERR_SUCCESS)
return NSS_STATUS_TRYAGAIN;
-
+
if (yp_match (domain, "passwd.byname", &result->pw_name[1],
strlen (result->pw_name) - 1, &outval, &outvallen)
!= YPERR_SUCCESS)
@@ -658,10 +726,14 @@ getpwent_next_file_plususer (struct passwd *result, char *buffer,
free (outval);
while (isspace (*p))
p++;
- parse_res = _nss_files_parse_pwent (p, result, data, buflen);
+ if ((parse_res = _nss_files_parse_pwent (p, result, data, buflen)) == -1)
+ {
+ __set_errno (ERANGE);
+ return NSS_STATUS_TRYAGAIN;
+ }
}
- if (parse_res)
+ if (parse_res > 0)
{
copy_pwd_changes (result, &pwd, p, plen);
give_pwd_free (&pwd);
@@ -684,10 +756,13 @@ getpwent_next_file (struct passwd *result, ent_t *ent,
struct parser_data *data = (void *) buffer;
while (1)
{
+ fpos_t pos;
char *p;
+ int parse_res;
do
{
+ fgetpos (ent->stream, &pos);
p = fgets (buffer, buflen, ent->stream);
if (p == NULL)
return NSS_STATUS_NOTFOUND;
@@ -702,7 +777,15 @@ 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. */
- !_nss_files_parse_pwent (p, result, data, buflen));
+ !(parse_res = _nss_files_parse_pwent (p, result, data, buflen)));
+
+ if (parse_res == -1)
+ {
+ /* The parser ran out of space. */
+ fsetpos (ent->stream, &pos);
+ __set_errno (ERANGE);
+ return NSS_STATUS_TRYAGAIN;
+ }
if (result->pw_name[0] != '+' && result->pw_name[0] != '-')
/* This is a real entry. */
diff --git a/nis/nss_compat/compat-spwd.c b/nis/nss_compat/compat-spwd.c
index 4199baf..61a703c 100644
--- a/nis/nss_compat/compat-spwd.c
+++ b/nis/nss_compat/compat-spwd.c
@@ -292,6 +292,10 @@ getspent_next_nis_netgr (struct spwd *result, ent_t *ent, char *group,
while (1)
{
+ char *saved_cursor;
+ int parse_res;
+
+ saved_cursor = ent->netgrdata.cursor;
status = __internal_getnetgrent_r (&host, &user, &domain,
&ent->netgrdata, buffer, buflen);
if (status != 1)
@@ -301,10 +305,10 @@ getspent_next_nis_netgr (struct spwd *result, ent_t *ent, char *group,
give_spwd_free (&ent->pwd);
return NSS_STATUS_RETURN;
}
-
+
if (user == NULL || user[0] == '-')
continue;
-
+
if (domain != NULL && strcmp (ypdomain, domain) != 0)
continue;
@@ -325,7 +329,13 @@ getspent_next_nis_netgr (struct spwd *result, ent_t *ent, char *group,
while (isspace (*p))
p++;
free (outval);
- if (_nss_files_parse_spent (p, result, data, buflen))
+ if ((parse_res = _nss_files_parse_spent (p, result, data, buflen)) == -1)
+ {
+ ent->netgrdata.cursor = saved_cursor;
+ return NSS_STATUS_TRYAGAIN;
+ }
+
+ if (parse_res)
{
copy_spwd_changes (result, &ent->pwd, p2, p2len);
break;
@@ -363,6 +373,9 @@ getspent_next_nisplus_netgr (struct spwd *result, ent_t *ent, char *group,
while (1)
{
+ char *saved_cursor;
+
+ saved_cursor = ent->netgrdata.cursor;
status = __internal_getnetgrent_r (&host, &user, &domain,
&ent->netgrdata, buffer, buflen);
if (status != 1)
@@ -397,7 +410,12 @@ getspent_next_nisplus_netgr (struct spwd *result, ent_t *ent, char *group,
nis_freeresult (nisres);
continue;
}
- parse_res = _nss_nisplus_parse_spent (nisres, result, buffer, buflen);
+ if ((parse_res = _nss_nisplus_parse_spent (nisres, result, buffer,
+ buflen)) == -1)
+ {
+ nis_freeresult (nisres);
+ return NSS_STATUS_TRYAGAIN;
+ }
nis_freeresult (nisres);
if (parse_res)
@@ -438,8 +456,14 @@ getspent_next_nisplus (struct spwd *result, ent_t *ent, char *buffer,
buflen -= p2len;
do
{
+ bool_t saved_first;
+ nis_result *saved_res;
+
if (ent->first)
{
+ saved_first = TRUE;
+ saved_res = ent->result;
+
ent->result = nis_first_entry(pwdtable);
if (niserr2nss (ent->result->status) != NSS_STATUS_SUCCESS)
{
@@ -453,18 +477,33 @@ getspent_next_nisplus (struct spwd *result, ent_t *ent, char *buffer,
{
nis_result *res;
+ saved_first = FALSE;
+ saved_res = ent->result;
+
res = nis_next_entry(pwdtable, &ent->result->cookie);
- nis_freeresult (ent->result);
ent->result = res;
if (niserr2nss (ent->result->status) != NSS_STATUS_SUCCESS)
{
+ nis_freeresult (saved_res);
ent->nis = 0;
give_spwd_free (&ent->pwd);
return niserr2nss (ent->result->status);
}
}
- parse_res = _nss_nisplus_parse_spent (ent->result, result, buffer,
- buflen);
+ if ((parse_res = _nss_nisplus_parse_spent (ent->result, result, buffer,
+ buflen)) == -1)
+ {
+ ent->first = saved_first;
+ nis_freeresult (ent->result);
+ ent->result = saved_res;
+ __set_errno (ERANGE);
+ return NSS_STATUS_TRYAGAIN;
+ }
+ else
+ {
+ if (!saved_first)
+ nis_freeresult (saved_res);
+ }
if (parse_res &&
in_blacklist (result->sp_namp, strlen (result->sp_namp), ent))
parse_res = 0; /* if result->pw_name in blacklist,search next entry */
@@ -503,6 +542,10 @@ getspent_next_nis (struct spwd *result, ent_t *ent,
buflen -= p2len;
do
{
+ bool_t saved_first;
+ char *saved_oldkey;
+ int saved_oldlen;
+
if (ent->first)
{
if (yp_first (domain, "shadow.byname", &outkey, &outkeylen,
@@ -512,7 +555,9 @@ getspent_next_nis (struct spwd *result, ent_t *ent,
give_spwd_free (&ent->pwd);
return NSS_STATUS_UNAVAIL;
}
-
+ saved_first = TRUE;
+ saved_oldkey = ent->oldkey;
+ saved_oldlen = ent->oldkeylen;
ent->oldkey = outkey;
ent->oldkeylen = outkeylen;
ent->first = FALSE;
@@ -528,7 +573,9 @@ getspent_next_nis (struct spwd *result, ent_t *ent,
return NSS_STATUS_NOTFOUND;
}
- free (ent->oldkey);
+ saved_first = FALSE;
+ saved_oldkey = ent->oldkey;
+ saved_oldlen = ent->oldkeylen;
ent->oldkey = outkey;
ent->oldkeylen = outkeylen;
}
@@ -541,7 +588,20 @@ getspent_next_nis (struct spwd *result, ent_t *ent,
while (isspace (*p))
++p;
- parse_res = _nss_files_parse_spent (p, result, data, buflen);
+ if ((parse_res = _nss_files_parse_spent (p, result, data, buflen)) == -1)
+ {
+ free (ent->oldkey);
+ ent->oldkey = saved_oldkey;
+ ent->oldkeylen = saved_oldlen;
+ ent->first = saved_first;
+ __set_errno (ERANGE);
+ return NSS_STATUS_TRYAGAIN;
+ }
+ else
+ {
+ if (!saved_first)
+ free (saved_oldkey);
+ }
if (parse_res &&
in_blacklist (result->sp_namp, strlen (result->sp_namp), ent))
parse_res = 0;
@@ -591,7 +651,12 @@ getspent_next_file_plususer (struct spwd *result, char *buffer,
nis_freeresult (res);
return status;
}
- parse_res = _nss_nisplus_parse_spent (res, result, buffer, buflen);
+ if ((parse_res = _nss_nisplus_parse_spent (res, result, buffer,
+ buflen)) == -1)
+ {
+ nis_freeresult (res);
+ return NSS_STATUS_TRYAGAIN;
+ }
nis_freeresult (res);
}
else /* Use NIS */
@@ -612,7 +677,8 @@ getspent_next_file_plususer (struct spwd *result, char *buffer,
free (outval);
while (isspace (*p))
p++;
- parse_res = _nss_files_parse_spent (p, result, data, buflen);
+ if ((parse_res = _nss_files_parse_spent (p, result, data, buflen)) == -1)
+ return NSS_STATUS_TRYAGAIN;
}
if (parse_res)
@@ -638,10 +704,13 @@ getspent_next_file (struct spwd *result, ent_t *ent,
struct parser_data *data = (void *) buffer;
while (1)
{
+ fpos_t pos;
+ int parse_res = 0;
char *p;
do
{
+ fgetpos (ent->stream, &pos);
p = fgets (buffer, buflen, ent->stream);
if (p == NULL)
return NSS_STATUS_NOTFOUND;
@@ -656,8 +725,17 @@ getspent_next_file (struct spwd *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. */
- || !_nss_files_parse_spent (p, result, data, buflen));
+ || !(parse_res = _nss_files_parse_spent (p, result, data,
+ buflen)));
+ if (parse_res == -1)
+ {
+ /* The parser ran out of space. */
+ fsetpos (ent->stream, &pos);
+ __set_errno (ERANGE);
+ return NSS_STATUS_TRYAGAIN;
+ }
+
if (result->sp_namp[0] != '+' && result->sp_namp[0] != '-')
/* This is a real entry. */
break;