mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-24 10:22:41 +08:00
Avoid unnecessary setXXent calls into the backend NSS module. If backend setXXent call failed, don't have internal_setXXent fail. Just remember this until it is needed.
This commit is contained in:
Ulrich Drepper
parent
b894c2ea7e
commit
cb62745abd
@ -59,12 +59,13 @@ struct blacklist_t
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struct ent_t
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{
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bool_t files;
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enum nss_status setent_status;
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FILE *stream;
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struct blacklist_t blacklist;
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};
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typedef struct ent_t ent_t;
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static ent_t ext_ent = {TRUE, NULL, {NULL, 0, 0}};
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static ent_t ext_ent = { TRUE, NSS_STATUS_SUCCESS, NULL, { NULL, 0, 0 }};
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/* Protect global state against multiple changers. */
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__libc_lock_define_initialized (static, lock)
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@ -89,7 +90,7 @@ init_nss_interface (void)
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}
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static enum nss_status
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internal_setgrent (ent_t *ent, int stayopen)
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internal_setgrent (ent_t *ent, int stayopen, int needent)
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{
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enum nss_status status = NSS_STATUS_SUCCESS;
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@ -137,12 +138,8 @@ internal_setgrent (ent_t *ent, int stayopen)
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else
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rewind (ent->stream);
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if (status == NSS_STATUS_SUCCESS && nss_setgrent)
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{
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status = nss_setgrent (stayopen);
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if (status == NSS_STATUS_UNAVAIL)
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status = NSS_STATUS_SUCCESS;
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}
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if (needent && status == NSS_STATUS_SUCCESS && nss_setgrent)
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ent->setent_status = nss_setgrent (stayopen);
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return status;
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}
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@ -158,7 +155,7 @@ _nss_compat_setgrent (int stayopen)
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if (ni == NULL)
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init_nss_interface ();
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result = internal_setgrent (&ext_ent, stayopen);
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result = internal_setgrent (&ext_ent, stayopen, 1);
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__libc_lock_unlock (lock);
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@ -212,6 +209,10 @@ getgrent_next_nss (struct group *result, ent_t *ent, char *buffer,
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if (!nss_getgrent_r)
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return NSS_STATUS_UNAVAIL;
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/* If the setgrent call failed, say so. */
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if (ent->setent_status != NSS_STATUS_SUCCESS)
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return ent->setent_status;
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do
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{
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enum nss_status status;
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@ -363,7 +364,7 @@ _nss_compat_getgrent_r (struct group *grp, char *buffer, size_t buflen,
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init_nss_interface ();
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if (ext_ent.stream == NULL)
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result = internal_setgrent (&ext_ent, 1);
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result = internal_setgrent (&ext_ent, 1, 1);
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if (result == NSS_STATUS_SUCCESS)
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{
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@ -485,7 +486,7 @@ enum nss_status
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_nss_compat_getgrnam_r (const char *name, struct group *grp,
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char *buffer, size_t buflen, int *errnop)
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{
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ent_t ent = {TRUE, NULL, {NULL, 0, 0}};
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ent_t ent = { TRUE, NSS_STATUS_SUCCESS, NULL, { NULL, 0, 0 }};
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enum nss_status result;
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if (name[0] == '-' || name[0] == '+')
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@ -498,7 +499,7 @@ _nss_compat_getgrnam_r (const char *name, struct group *grp,
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__libc_lock_unlock (lock);
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result = internal_setgrent (&ent, 0);
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result = internal_setgrent (&ent, 0, 0);
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if (result == NSS_STATUS_SUCCESS)
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result = internal_getgrnam_r (name, grp, &ent, buffer, buflen, errnop);
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@ -613,7 +614,7 @@ enum nss_status
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_nss_compat_getgrgid_r (gid_t gid, struct group *grp,
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char *buffer, size_t buflen, int *errnop)
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{
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ent_t ent = {TRUE, NULL, {NULL, 0, 0}};
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ent_t ent = { TRUE, NSS_STATUS_SUCCESS, NULL, { NULL, 0, 0 }};
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enum nss_status result;
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__libc_lock_lock (lock);
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@ -623,7 +624,7 @@ _nss_compat_getgrgid_r (gid_t gid, struct group *grp,
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__libc_lock_unlock (lock);
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result = internal_setgrent (&ent, 0);
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result = internal_setgrent (&ent, 0, 0);
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if (result == NSS_STATUS_SUCCESS)
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result = internal_getgrgid_r (gid, grp, &ent, buffer, buflen, errnop);
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@ -62,9 +62,10 @@ struct blacklist_t
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struct ent_t
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{
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bool_t netgroup;
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bool_t first;
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bool_t files;
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bool netgroup;
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bool first;
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bool files;
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enum nss_status setent_status;
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FILE *stream;
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struct blacklist_t blacklist;
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struct passwd pwd;
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@ -72,8 +73,9 @@ struct ent_t
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};
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typedef struct ent_t ent_t;
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static ent_t ext_ent = {0, 0, TRUE, NULL, {NULL, 0, 0},
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{NULL, NULL, 0, 0, NULL, NULL, NULL}};
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static ent_t ext_ent = { false, false, true, NSS_STATUS_SUCCESS, NULL,
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{ NULL, 0, 0 },
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{ NULL, NULL, 0, 0, NULL, NULL, NULL }};
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/* Protect global state against multiple changers. */
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__libc_lock_define_initialized (static, lock)
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@ -202,12 +204,13 @@ copy_pwd_changes (struct passwd *dest, struct passwd *src,
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}
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static enum nss_status
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internal_setpwent (ent_t *ent, int stayopen)
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internal_setpwent (ent_t *ent, int stayopen, int needent)
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{
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enum nss_status status = NSS_STATUS_SUCCESS;
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ent->first = ent->netgroup = FALSE;
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ent->files = TRUE;
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ent->first = ent->netgroup = false;
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ent->files = true;
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ent->setent_status = NSS_STATUS_SUCCESS;
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/* If something was left over free it. */
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if (ent->netgroup)
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@ -257,12 +260,8 @@ internal_setpwent (ent_t *ent, int stayopen)
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give_pwd_free (&ent->pwd);
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if (status == NSS_STATUS_SUCCESS && nss_setpwent)
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{
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status = nss_setpwent (stayopen);
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if (status == NSS_STATUS_UNAVAIL)
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status = NSS_STATUS_SUCCESS;
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}
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if (needent && status == NSS_STATUS_SUCCESS && nss_setpwent)
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ent->setent_status = nss_setpwent (stayopen);
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return status;
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}
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@ -278,7 +277,7 @@ _nss_compat_setpwent (int stayopen)
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if (ni == NULL)
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init_nss_interface ();
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result = internal_setpwent (&ext_ent, stayopen);
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result = internal_setpwent (&ext_ent, stayopen, 1);
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__libc_lock_unlock (lock);
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@ -301,7 +300,7 @@ internal_endpwent (ent_t *ent)
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if (ent->netgroup)
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__internal_endnetgrent (&ent->netgrdata);
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ent->first = ent->netgroup = FALSE;
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ent->first = ent->netgroup = false;
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if (ent->blacklist.data != NULL)
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{
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@ -348,17 +347,17 @@ getpwent_next_nss_netgr (const char *name, struct passwd *result, ent_t *ent,
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if (yp_get_default_domain (&curdomain) != YPERR_SUCCESS)
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{
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ent->netgroup = FALSE;
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ent->first = FALSE;
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ent->netgroup = false;
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ent->first = false;
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give_pwd_free (&ent->pwd);
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return NSS_STATUS_UNAVAIL;
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}
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if (ent->first == TRUE)
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if (ent->first == true)
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{
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memset (&ent->netgrdata, 0, sizeof (struct __netgrent));
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__internal_setnetgrent (group, &ent->netgrdata);
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ent->first = FALSE;
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ent->first = false;
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}
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while (1)
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@ -427,6 +426,10 @@ getpwent_next_nss (struct passwd *result, ent_t *ent, char *buffer,
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if (!nss_getpwent_r)
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return NSS_STATUS_UNAVAIL;
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/* If the setpwent call failed, say so. */
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if (ent->setent_status != NSS_STATUS_SUCCESS)
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return ent->setent_status;
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p2len = pwd_need_buflen (&ent->pwd);
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if (p2len > buflen)
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{
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@ -437,7 +440,7 @@ getpwent_next_nss (struct passwd *result, ent_t *ent, char *buffer,
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buflen -= p2len;
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if (ent->first)
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ent->first = FALSE;
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ent->first = false;
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do
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{
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@ -570,8 +573,8 @@ getpwent_next_file (struct passwd *result, ent_t *ent,
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{
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enum nss_status status;
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ent->netgroup = TRUE;
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ent->first = TRUE;
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ent->netgroup = true;
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ent->first = true;
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copy_pwd_changes (&ent->pwd, result, NULL, 0);
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status = getpwent_next_nss_netgr (NULL, result, ent,
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@ -626,8 +629,8 @@ getpwent_next_file (struct passwd *result, ent_t *ent,
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/* +:... */
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if (result->pw_name[0] == '+' && result->pw_name[1] == '\0')
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{
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ent->files = FALSE;
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ent->first = TRUE;
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ent->files = false;
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ent->first = true;
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copy_pwd_changes (&ent->pwd, result, NULL, 0);
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return getpwent_next_nss (result, ent, buffer, buflen, errnop);
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@ -675,7 +678,7 @@ _nss_compat_getpwent_r (struct passwd *pwd, char *buffer, size_t buflen,
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init_nss_interface ();
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if (ext_ent.stream == NULL)
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result = internal_setpwent (&ext_ent, 1);
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result = internal_setpwent (&ext_ent, 1, 1);
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if (result == NSS_STATUS_SUCCESS)
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result = internal_getpwent_r (pwd, &ext_ent, buffer, buflen, errnop);
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@ -827,8 +830,8 @@ _nss_compat_getpwnam_r (const char *name, struct passwd *pwd,
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char *buffer, size_t buflen, int *errnop)
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{
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enum nss_status result;
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ent_t ent = {0, 0, TRUE, NULL, {NULL, 0, 0},
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{NULL, NULL, 0, 0, NULL, NULL, NULL}};
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ent_t ent = { false, false, true, NSS_STATUS_SUCCESS, NULL, { NULL, 0, 0 },
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{ NULL, NULL, 0, 0, NULL, NULL, NULL }};
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if (name[0] == '-' || name[0] == '+')
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return NSS_STATUS_NOTFOUND;
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@ -840,7 +843,7 @@ _nss_compat_getpwnam_r (const char *name, struct passwd *pwd,
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__libc_lock_unlock (lock);
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result = internal_setpwent (&ent, 0);
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result = internal_setpwent (&ent, 0, 0);
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if (result == NSS_STATUS_SUCCESS)
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result = internal_getpwnam_r (name, pwd, &ent, buffer, buflen, errnop);
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@ -1069,8 +1072,8 @@ _nss_compat_getpwuid_r (uid_t uid, struct passwd *pwd,
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char *buffer, size_t buflen, int *errnop)
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{
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enum nss_status result;
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ent_t ent = {0, 0, TRUE, NULL, {NULL, 0, 0},
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{NULL, NULL, 0, 0, NULL, NULL, NULL}};
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ent_t ent = { false, false, true, NSS_STATUS_SUCCESS, NULL, { NULL, 0, 0 },
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{ NULL, NULL, 0, 0, NULL, NULL, NULL }};
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__libc_lock_lock (lock);
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@ -1079,7 +1082,7 @@ _nss_compat_getpwuid_r (uid_t uid, struct passwd *pwd,
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__libc_lock_unlock (lock);
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result = internal_setpwent (&ent, 0);
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result = internal_setpwent (&ent, 0, 0);
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if (result == NSS_STATUS_SUCCESS)
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result = internal_getpwuid_r (uid, pwd, &ent, buffer, buflen, errnop);
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@ -1136,7 +1139,7 @@ blacklist_store_name (const char *name, ent_t *ent)
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return;
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}
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/* returns TRUE if ent->blacklist contains name, else FALSE */
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/* Returns TRUE if ent->blacklist contains name, else FALSE. */
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static bool_t
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in_blacklist (const char *name, int namelen, ent_t *ent)
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{
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@ -59,9 +59,10 @@ struct blacklist_t
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struct ent_t
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{
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bool_t netgroup;
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bool_t files;
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bool_t first;
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bool netgroup;
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bool files;
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bool first;
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enum nss_status setent_status;
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FILE *stream;
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struct blacklist_t blacklist;
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struct spwd pwd;
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@ -69,8 +70,9 @@ struct ent_t
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};
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typedef struct ent_t ent_t;
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static ent_t ext_ent = {0, TRUE, 0, NULL, {NULL, 0, 0},
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{NULL, NULL, 0, 0, 0, 0, 0, 0, 0}};
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static ent_t ext_ent = { false, true, false, NSS_STATUS_SUCCESS, NULL,
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{ NULL, 0, 0},
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{ NULL, NULL, 0, 0, 0, 0, 0, 0, 0}};
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/* Protect global state against multiple changers. */
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__libc_lock_define_initialized (static, lock)
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@ -161,7 +163,7 @@ internal_setspent (ent_t *ent, int stayopen)
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enum nss_status status = NSS_STATUS_SUCCESS;
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ent->first = ent->netgroup = 0;
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ent->files = TRUE;
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ent->files = true;
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/* If something was left over free it. */
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if (ent->netgroup)
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@ -212,11 +214,7 @@ internal_setspent (ent_t *ent, int stayopen)
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give_spwd_free (&ent->pwd);
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if (status == NSS_STATUS_SUCCESS && nss_setspent)
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{
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status = nss_setspent (stayopen);
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if (status == NSS_STATUS_UNAVAIL)
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status = NSS_STATUS_SUCCESS;
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}
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ent->setent_status = nss_setspent (stayopen);
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return status;
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}
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@ -255,8 +253,8 @@ internal_endspent (ent_t *ent)
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if (ent->netgroup)
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__internal_endnetgrent (&ent->netgrdata);
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ent->first = ent->netgroup = FALSE;
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ent->files = TRUE;
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ent->first = ent->netgroup = false;
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ent->files = true;
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if (ent->blacklist.data != NULL)
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{
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@ -298,19 +296,23 @@ getspent_next_nss_netgr (const char *name, struct spwd *result, ent_t *ent,
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if (!nss_getspnam_r)
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return NSS_STATUS_UNAVAIL;
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/* If the setpwent call failed, say so. */
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if (ent->setent_status != NSS_STATUS_SUCCESS)
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return ent->setent_status;
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if (yp_get_default_domain (&curdomain) != YPERR_SUCCESS)
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{
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ent->netgroup = FALSE;
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ent->first = FALSE;
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ent->netgroup = false;
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ent->first = false;
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give_spwd_free (&ent->pwd);
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return NSS_STATUS_UNAVAIL;
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}
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if (ent->first == TRUE)
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if (ent->first == true)
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{
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memset (&ent->netgrdata, 0, sizeof (struct __netgrent));
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__internal_setnetgrent (group, &ent->netgrdata);
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ent->first = FALSE;
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ent->first = false;
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}
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while (1)
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@ -325,7 +327,7 @@ getspent_next_nss_netgr (const char *name, struct spwd *result, ent_t *ent,
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if (status != 1)
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{
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__internal_endnetgrent (&ent->netgrdata);
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ent->netgroup = FALSE;
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ent->netgroup = false;
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give_spwd_free (&ent->pwd);
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return NSS_STATUS_RETURN;
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}
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@ -400,6 +402,7 @@ getspent_next_nss (struct spwd *result, ent_t *ent,
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return NSS_STATUS_SUCCESS;
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}
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/* This function handle the +user entrys in /etc/shadow */
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static enum nss_status
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getspnam_plususer (const char *name, struct spwd *result, ent_t *ent,
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@ -440,6 +443,7 @@ getspnam_plususer (const char *name, struct spwd *result, ent_t *ent,
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return NSS_STATUS_SUCCESS;
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}
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static enum nss_status
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getspent_next_file (struct spwd *result, ent_t *ent,
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char *buffer, size_t buflen, int *errnop)
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@ -520,8 +524,8 @@ getspent_next_file (struct spwd *result, ent_t *ent,
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{
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int status;
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ent->netgroup = TRUE;
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ent->first = TRUE;
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ent->netgroup = true;
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ent->first = true;
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copy_spwd_changes (&ent->pwd, result, NULL, 0);
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status = getspent_next_nss_netgr (NULL, result, ent,
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@ -577,8 +581,8 @@ getspent_next_file (struct spwd *result, ent_t *ent,
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/* +:... */
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if (result->sp_namp[0] == '+' && result->sp_namp[1] == '\0')
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{
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ent->files = FALSE;
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ent->first = TRUE;
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ent->files = false;
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ent->first = true;
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copy_spwd_changes (&ent->pwd, result, NULL, 0);
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return getspent_next_nss (result, ent, buffer, buflen, errnop);
|
||||
@ -613,6 +617,7 @@ internal_getspent_r (struct spwd *pw, ent_t *ent,
|
||||
return getspent_next_nss (pw, ent, buffer, buflen, errnop);
|
||||
}
|
||||
|
||||
|
||||
enum nss_status
|
||||
_nss_compat_getspent_r (struct spwd *pwd, char *buffer, size_t buflen,
|
||||
int *errnop)
|
||||
@ -636,6 +641,7 @@ _nss_compat_getspent_r (struct spwd *pwd, char *buffer, size_t buflen,
|
||||
return result;
|
||||
}
|
||||
|
||||
|
||||
/* Searches in /etc/passwd and the NIS/NIS+ map for a special user */
|
||||
static enum nss_status
|
||||
internal_getspnam_r (const char *name, struct spwd *result, ent_t *ent,
|
||||
@ -778,13 +784,14 @@ internal_getspnam_r (const char *name, struct spwd *result, ent_t *ent,
|
||||
return NSS_STATUS_SUCCESS;
|
||||
}
|
||||
|
||||
|
||||
enum nss_status
|
||||
_nss_compat_getspnam_r (const char *name, struct spwd *pwd,
|
||||
char *buffer, size_t buflen, int *errnop)
|
||||
{
|
||||
enum nss_status result;
|
||||
ent_t ent = {0, TRUE, 0, NULL, {NULL, 0, 0},
|
||||
{NULL, NULL, 0, 0, 0, 0, 0, 0, 0}};
|
||||
ent_t ent = { false, true, false, NSS_STATUS_SUCCESS, NULL, { NULL, 0, 0},
|
||||
{ NULL, NULL, 0, 0, 0, 0, 0, 0, 0}};
|
||||
|
||||
if (name[0] == '-' || name[0] == '+')
|
||||
return NSS_STATUS_NOTFOUND;
|
||||
@ -806,6 +813,7 @@ _nss_compat_getspnam_r (const char *name, struct spwd *pwd,
|
||||
return result;
|
||||
}
|
||||
|
||||
|
||||
/* Support routines for remembering -@netgroup and -user entries.
|
||||
The names are stored in a single string with `|' as separator. */
|
||||
static void
|
||||
@ -852,6 +860,7 @@ blacklist_store_name (const char *name, ent_t *ent)
|
||||
return;
|
||||
}
|
||||
|
||||
|
||||
/* Returns TRUE if ent->blacklist contains name, else FALSE. */
|
||||
static bool_t
|
||||
in_blacklist (const char *name, int namelen, ent_t *ent)
|
||||
@ -860,7 +869,7 @@ in_blacklist (const char *name, int namelen, ent_t *ent)
|
||||
char *cp;
|
||||
|
||||
if (ent->blacklist.data == NULL)
|
||||
return FALSE;
|
||||
return false;
|
||||
|
||||
buf[0] = '|';
|
||||
cp = stpcpy (&buf[1], name);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user