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Diffstat (limited to 'libpwdgrp/pwd_grp.c')
-rw-r--r--libpwdgrp/pwd_grp.c89
1 files changed, 43 insertions, 46 deletions
diff --git a/libpwdgrp/pwd_grp.c b/libpwdgrp/pwd_grp.c
index 3661834..1878200 100644
--- a/libpwdgrp/pwd_grp.c
+++ b/libpwdgrp/pwd_grp.c
@@ -74,6 +74,7 @@ extern int __pgsreader(int (*__parserfunc)(void *d, char *line), void *data,
* Doing so is analogous to having fgetc() set errno on EOF.
*/
/**********************************************************************/
+
#ifdef L_fgetpwent_r
int fgetpwent_r(FILE *__restrict stream, struct passwd *__restrict resultbuf,
@@ -224,6 +225,7 @@ int sgetspent_r(const char *string, struct spwd *result_buf,
#define GETXXKEY_R_TEST(ENT) (!strcmp((ENT)->pw_name, key))
#define DO_GETXXKEY_R_KEYTYPE const char *__restrict
#define DO_GETXXKEY_R_PATHNAME _PATH_PASSWD
+#include "pwd_grp_internal.c"
#endif
#ifdef L_getgrnam_r
@@ -233,6 +235,7 @@ int sgetspent_r(const char *string, struct spwd *result_buf,
#define GETXXKEY_R_TEST(ENT) (!strcmp((ENT)->gr_name, key))
#define DO_GETXXKEY_R_KEYTYPE const char *__restrict
#define DO_GETXXKEY_R_PATHNAME _PATH_GROUP
+#include "pwd_grp_internal.c"
#endif
#ifdef L_getspnam_r
@@ -242,6 +245,7 @@ int sgetspent_r(const char *string, struct spwd *result_buf,
#define GETXXKEY_R_TEST(ENT) (!strcmp((ENT)->sp_namp, key))
#define DO_GETXXKEY_R_KEYTYPE const char *__restrict
#define DO_GETXXKEY_R_PATHNAME _PATH_SHADOW
+#include "pwd_grp_internal.c"
#endif
#ifdef L_getpwuid_r
@@ -251,6 +255,7 @@ int sgetspent_r(const char *string, struct spwd *result_buf,
#define GETXXKEY_R_TEST(ENT) ((ENT)->pw_uid == key)
#define DO_GETXXKEY_R_KEYTYPE uid_t
#define DO_GETXXKEY_R_PATHNAME _PATH_PASSWD
+#include "pwd_grp_internal.c"
#endif
#ifdef L_getgrgid_r
@@ -260,47 +265,10 @@ int sgetspent_r(const char *string, struct spwd *result_buf,
#define GETXXKEY_R_TEST(ENT) ((ENT)->gr_gid == key)
#define DO_GETXXKEY_R_KEYTYPE gid_t
#define DO_GETXXKEY_R_PATHNAME _PATH_GROUP
+#include "pwd_grp_internal.c"
#endif
/**********************************************************************/
-#ifdef GETXXKEY_R_FUNC
-
-int GETXXKEY_R_FUNC(DO_GETXXKEY_R_KEYTYPE key,
- GETXXKEY_R_ENTTYPE *__restrict resultbuf,
- char *__restrict buffer, size_t buflen,
- GETXXKEY_R_ENTTYPE **__restrict result)
-{
- FILE *stream;
- int rv;
-
- *result = NULL;
-
- if (!(stream = fopen(DO_GETXXKEY_R_PATHNAME, "r"))) {
- rv = errno;
- } else {
- do {
- if (!(rv = __pgsreader(GETXXKEY_R_PARSER, resultbuf,
- buffer, buflen, stream))
- ) {
- if (GETXXKEY_R_TEST(resultbuf)) { /* Found key? */
- *result = resultbuf;
- break;
- }
- } else {
- if (rv == ENOENT) { /* end-of-file encountered. */
- rv = 0;
- }
- break;
- }
- } while (1);
- fclose(stream);
- }
-
- return rv;
-}
-
-#endif
-/**********************************************************************/
#ifdef L_getpwuid
struct passwd *getpwuid(uid_t uid)
@@ -440,22 +408,37 @@ int getpw(uid_t uid, char *buf)
#endif
/**********************************************************************/
-#ifdef L_getpwent_r
+#if defined(L_getpwent_r) || defined(L_getgrent_r) || defined(L_getspent_r)
+#if defined CONFIG_USE_BB_THREADSAFE_SHADOW && defined PTHREAD_MUTEX_INITIALIZER
+static pthread_mutex_t mylock = PTHREAD_MUTEX_INITIALIZER;
+# define LOCK pthread_mutex_lock(&mylock)
+# define UNLOCK pthread_mutex_unlock(&mylock);
+#else
+# define LOCK ((void) 0)
+# define UNLOCK ((void) 0)
+#endif
+#endif
+
+#ifdef L_getpwent_r
static FILE *pwf /*= NULL*/;
void setpwent(void)
{
+ LOCK;
if (pwf) {
rewind(pwf);
}
+ UNLOCK;
}
void endpwent(void)
{
+ LOCK;
if (pwf) {
fclose(pwf);
pwf = NULL;
}
+ UNLOCK;
}
@@ -465,6 +448,7 @@ int getpwent_r(struct passwd *__restrict resultbuf,
{
int rv;
+ LOCK;
*result = NULL; /* In case of error... */
if (!pwf) {
@@ -480,6 +464,7 @@ int getpwent_r(struct passwd *__restrict resultbuf,
}
ERR:
+ UNLOCK;
return rv;
}
@@ -490,17 +475,21 @@ int getpwent_r(struct passwd *__restrict resultbuf,
static FILE *grf /*= NULL*/;
void setgrent(void)
{
+ LOCK;
if (grf) {
rewind(grf);
}
+ UNLOCK;
}
void endgrent(void)
{
+ LOCK;
if (grf) {
fclose(grf);
grf = NULL;
}
+ UNLOCK;
}
int getgrent_r(struct group *__restrict resultbuf,
@@ -509,6 +498,7 @@ int getgrent_r(struct group *__restrict resultbuf,
{
int rv;
+ LOCK;
*result = NULL; /* In case of error... */
if (!grf) {
@@ -524,6 +514,7 @@ int getgrent_r(struct group *__restrict resultbuf,
}
ERR:
+ UNLOCK;
return rv;
}
@@ -534,17 +525,21 @@ int getgrent_r(struct group *__restrict resultbuf,
static FILE *spf /*= NULL*/;
void setspent(void)
{
+ LOCK;
if (spf) {
rewind(spf);
}
+ UNLOCK;
}
void endspent(void)
{
+ LOCK;
if (spf) {
fclose(spf);
spf = NULL;
}
+ UNLOCK;
}
int getspent_r(struct spwd *resultbuf, char *buffer,
@@ -552,6 +547,7 @@ int getspent_r(struct spwd *resultbuf, char *buffer,
{
int rv;
+ LOCK;
*result = NULL; /* In case of error... */
if (!spf) {
@@ -567,6 +563,7 @@ int getspent_r(struct spwd *resultbuf, char *buffer,
}
ERR:
+ UNLOCK;
return rv;
}
@@ -632,7 +629,7 @@ struct spwd *sgetspent(const char *string)
int initgroups(const char *user, gid_t gid)
{
- FILE *grf;
+ FILE *grfile;
gid_t *group_list;
int num_groups, rv;
char **m;
@@ -643,13 +640,13 @@ int initgroups(const char *user, gid_t gid)
/* We alloc space for 8 gids at a time. */
if (((group_list = (gid_t *) malloc(8*sizeof(gid_t *))) != NULL)
- && ((grf = fopen(_PATH_GROUP, "r")) != NULL)
+ && ((grfile = fopen(_PATH_GROUP, "r")) != NULL)
) {
*group_list = gid;
num_groups = 1;
- while (!__pgsreader(__parsegrent, &group, buff, sizeof(buff), grf)) {
+ while (!__pgsreader(__parsegrent, &group, buff, sizeof(buff), grfile)) {
assert(group.gr_mem); /* Must have at least a NULL terminator. */
if (group.gr_gid != gid) {
for (m=group.gr_mem ; *m ; m++) {
@@ -673,7 +670,7 @@ int initgroups(const char *user, gid_t gid)
rv = setgroups(num_groups, group_list);
DO_CLOSE:
- fclose(grf);
+ fclose(grfile);
}
/* group_list will be NULL if initial malloc failed, which may trigger
@@ -756,7 +753,7 @@ int putgrent(const struct group *__restrict p, FILE *__restrict f)
/**********************************************************************/
#ifdef L_putspent
-static const unsigned char sp_off[] = {
+static const unsigned char _sp_off[] = {
offsetof(struct spwd, sp_lstchg), /* 2 - not a char ptr */
offsetof(struct spwd, sp_min), /* 3 - not a char ptr */
offsetof(struct spwd, sp_max), /* 4 - not a char ptr */
@@ -780,9 +777,9 @@ int putspent(const struct spwd *p, FILE *stream)
goto DO_UNLOCK;
}
- for (i=0 ; i < sizeof(sp_off) ; i++) {
+ for (i=0 ; i < sizeof(_sp_off) ; i++) {
f = ld_format;
- if ((x = *(const long int *)(((const char *) p) + sp_off[i])) == -1) {
+ if ((x = *(const long int *)(((const char *) p) + _sp_off[i])) == -1) {
f += 3;
}
if (fprintf(stream, f, x) < 0) {
generated by cgit v1.1 at 2024-12-26 06:14:57 +0000