Reentrant versions added by Joel. Signficant formatting cleanup.

c/src/exec/libcsupport/src/getgrent.c

@@ -19,51 +19,70 @@ static char password[1024];
 static char groups[1024];
 static char *gr_mem[16] = { } ;
 
-struct group *
+int getgrnam_r(
-getgrnam (name)
+  const char     *name,
-     const char *name;
+  struct group   *grp,
+  char           *buffer,
+  size_t          bufsize,
+  struct group  **result
+)
 {
   FILE *fp;
-  char buf[1024];
 
-  if ((fp = fopen ("/etc/group", "r")) == NULL)
+  if ((fp = fopen ("/etc/group", "r")) == NULL) {
-    {
+    errno = EINVAL;
-      return NULL;
+    return -1;
   }
 
-  while (fgets (buf, sizeof (buf), fp))
+  while (fgets (buffer, bufsize, fp)) {
-    {
+    sscanf (buffer, "%[^:]:%[^:]:%d:%s\n",
-      sscanf (buf, "%[^:]:%[^:]:%d:%s\n",
+      groupname, password, &grp->gr_gid,
-	      groupname, password, &gr_group.gr_gid,
       groups);
-      gr_group.gr_name = groupname;
+    grp->gr_name = groupname;
-      gr_group.gr_passwd = password;
+    grp->gr_passwd = password;
-      gr_group.gr_mem = gr_mem ;
+    grp->gr_mem = gr_mem ;
     
-      if (!strcmp (groupname, name))
+    if (!strcmp (groupname, name)) {
-	{
       fclose (fp);
-	  return &gr_group;
+      *result = grp;
+      return 0;
     }
   }
   fclose (fp);
-  return NULL;
+  errno = EINVAL;
+  return -1;
 }
 
-struct group *
+struct group *getgrnam(
-getgrgid (gid_t gid)
+  const char *name
+)
+{
+  char   buf[1024];
+  struct group *g;
+
+  if ( getgrnam_r( name, &gr_group, buf, 1024, &g ) )
+    return NULL;
+
+  return g;
+}
+
+int getgrgid_r(
+  gid_t           gid,
+  struct group   *grp,
+  char           *buffer,
+  size_t          bufsize,
+  struct group  **result
+)
 {
   FILE *fp;
-  char buf[1024];
 
-  if ((fp = fopen ("/etc/group", "r")) == NULL)
+  if ((fp = fopen ("/etc/group", "r")) == NULL) {
-    {
+    errno = EINVAL;
-      return NULL;
+    return -1;
   }
 
-  while (fgets (buf, sizeof (buf), fp))
+  while (fgets (buffer, bufsize, fp)) {
-    {
+    sscanf (buffer, "%[^:]:%[^:]:%d:%s\n",
-      sscanf (buf, "%[^:]:%[^:]:%d:%s\n",
       groupname, password, &gr_group.gr_gid,
       groups);
     gr_group.gr_name = groupname;
@@ -71,18 +90,31 @@ getgrgid (gid_t gid)
     gr_group.gr_mem = gr_mem ;
 
 
-      if (gid == gr_group.gr_gid)
+    if (gid == gr_group.gr_gid) {
-	{
       fclose (fp);
-	  return &gr_group;
+      *result = grp;
+      return 0;
     }
   }
   fclose (fp);
-  return NULL;
+  errno = EINVAL;
+  return -1;
 }
 
-struct group *
+struct group *getgrgid (
-getgrent ()
+  gid_t gid
+)
+{
+  char   buf[1024];
+  struct group *g;
+
+  if ( getgrgid_r( gid, &gr_group, buf, 1024, &g ) )
+    return NULL;
+
+  return g;
+}
+
+struct group *getgrent( void )
 {
   char buf[1024];
 

c/src/exec/libcsupport/src/getpwent.c

@@ -17,78 +17,109 @@ static char gecos[1024];
 static char dir[1024];
 static char shell[1024];
 
-struct passwd *
+int getpwnam_r(
-getpwnam (name)
+  const char     *name,
-     const char *name;
+  struct passwd  *pwd,
+  char           *buffer,
+  size_t          bufsize,
+  struct passwd **result
+)
 {
   FILE *fp;
-  int uid, gid;
-  char buf[1024];
 
-  if ((fp = fopen ("/etc/passwd", "r")) == NULL)
+  if ((fp = fopen ("/etc/passwd", "r")) == NULL) {
-    {
+    errno = EINVAL;
-      return NULL;
+    return -1;
   }
 
-  while (fgets (buf, sizeof (buf), fp))
+  while (fgets (buffer, bufsize, fp)) {
-    {
+    sscanf (buffer, "%[^:]:%[^:]:%d:%d:%[^:]:%[^:]:%s\n",
-      sscanf (buf, "%[^:]:%[^:]:%d:%d:%[^:]:%[^:]:%s\n",
+        logname, password, &pwd->pw_uid,
+        &pwd->pw_gid, comment, gecos,
+        dir, shell);
+    pwd->pw_name = logname;
+    pwd->pw_passwd = password;
+    pwd->pw_comment = comment;
+    pwd->pw_gecos = gecos;
+    pwd->pw_dir = dir;
+    pwd->pw_shell = shell;
+
+    if (!strcmp (logname, name)) {
+      fclose (fp);
+      *result = pwd;
+      return 0;
+    }
+  }
+  fclose (fp);
+  errno = EINVAL;
+  return -1;
+}
+
+struct passwd *getpwnam(
+  const char *name
+)
+{
+  char   buf[1024];
+  struct passwd *p;
+
+  if ( getpwnam_r( name, &pw_passwd, buf, 1024, &p ) )
+    return NULL;
+
+  return p;
+}
+
+int getpwuid_r(
+  uid_t           uid,
+  struct passwd  *pwd,
+  char           *buffer,
+  size_t          bufsize,
+  struct passwd **result
+)
+{
+  FILE *fp;
+
+  if ((fp = fopen ("/etc/passwd", "r")) == NULL) {
+    errno = EINVAL;
+    return -1;
+  }
+
+  while (fgets (buffer, bufsize, fp)) {
+    sscanf (buffer, "%[^:]:%[^:]:%d:%d:%[^:]:%[^:]:%s\n",
      logname, password, &pw_passwd.pw_uid,
      &pw_passwd.pw_gid, comment, gecos,
      dir, shell);
-      pw_passwd.pw_name = logname;
+    pwd->pw_name = logname;
-      pw_passwd.pw_passwd = password;
+    pwd->pw_passwd = password;
-      pw_passwd.pw_comment = comment;
+    pwd->pw_comment = comment;
-      pw_passwd.pw_gecos = gecos;
+    pwd->pw_gecos = gecos;
-      pw_passwd.pw_dir = dir;
+    pwd->pw_dir = dir;
-      pw_passwd.pw_shell = shell;
+    pwd->pw_shell = shell;
 
-      if (!strcmp (logname, name))
+    if (uid == pwd->pw_uid) {
-	{
       fclose (fp);
-	  return &pw_passwd;
+      *result = pwd;
+      return 0;
     }
   }
   fclose (fp);
-  return NULL;
+  errno = EINVAL;
+  return -1;
 }
 
-struct passwd *
+struct passwd *getpwuid(
-getpwuid (uid_t uid)
+  uid_t uid
+)
 {
-  FILE *fp;
   char   buf[1024];
+  struct passwd *p;
 
-  if ((fp = fopen ("/etc/passwd", "r")) == NULL)
+  if ( getpwuid_r( uid, &pw_passwd, buf, 1024, &p ) )
-    {
     return NULL;
-    }
 
-  while (fgets (buf, sizeof (buf), fp))
+  return p;
-    {
-      sscanf (buf, "%[^:]:%[^:]:%d:%d:%[^:]:%[^:]:%s\n",
-	      logname, password, &pw_passwd.pw_uid,
-	      &pw_passwd.pw_gid, comment, gecos,
-	      dir, shell);
-      pw_passwd.pw_name = logname;
-      pw_passwd.pw_passwd = password;
-      pw_passwd.pw_comment = comment;
-      pw_passwd.pw_gecos = gecos;
-      pw_passwd.pw_dir = dir;
-      pw_passwd.pw_shell = shell;
-
-      if (uid == pw_passwd.pw_uid)
-	{
-	  fclose (fp);
-	  return &pw_passwd;
-	}
-    }
-  fclose (fp);
-  return NULL;
 }
 
-struct passwd *
+struct passwd *getpwent()
-getpwent ()
 {
   char buf[1024];
 
@@ -112,8 +143,7 @@ getpwent ()
   return &pw_passwd;
 }
 
-void
+void setpwent( void )
-setpwent ()
 {
   if (passwd_fp != NULL)
     fclose (passwd_fp);
@@ -121,8 +151,7 @@ setpwent ()
   passwd_fp = fopen ("/etc/passwd", "r");
 }
 
-void
+void endpwent( void )
-endpwent ()
 {
   if (passwd_fp != NULL)
     fclose (passwd_fp);

c/src/lib/libc/Makefile.in

@@ -47,7 +47,7 @@ MALLOC_PIECES=\
   malloc __brk __sbrk
 
 PASSWORD_GROUP_PIECES=\
-  getpwent getgwent
+  getpwent getgrent
 
 LIBC_GLUE_PIECES=\
   __gettod __times \

c/src/lib/libc/getgrent.c

@@ -19,51 +19,70 @@ static char password[1024];
 static char groups[1024];
 static char *gr_mem[16] = { } ;
 
-struct group *
+int getgrnam_r(
-getgrnam (name)
+  const char     *name,
-     const char *name;
+  struct group   *grp,
+  char           *buffer,
+  size_t          bufsize,
+  struct group  **result
+)
 {
   FILE *fp;
-  char buf[1024];
 
-  if ((fp = fopen ("/etc/group", "r")) == NULL)
+  if ((fp = fopen ("/etc/group", "r")) == NULL) {
-    {
+    errno = EINVAL;
-      return NULL;
+    return -1;
   }
 
-  while (fgets (buf, sizeof (buf), fp))
+  while (fgets (buffer, bufsize, fp)) {
-    {
+    sscanf (buffer, "%[^:]:%[^:]:%d:%s\n",
-      sscanf (buf, "%[^:]:%[^:]:%d:%s\n",
+      groupname, password, &grp->gr_gid,
-	      groupname, password, &gr_group.gr_gid,
       groups);
-      gr_group.gr_name = groupname;
+    grp->gr_name = groupname;
-      gr_group.gr_passwd = password;
+    grp->gr_passwd = password;
-      gr_group.gr_mem = gr_mem ;
+    grp->gr_mem = gr_mem ;
     
-      if (!strcmp (groupname, name))
+    if (!strcmp (groupname, name)) {
-	{
       fclose (fp);
-	  return &gr_group;
+      *result = grp;
+      return 0;
     }
   }
   fclose (fp);
-  return NULL;
+  errno = EINVAL;
+  return -1;
 }
 
-struct group *
+struct group *getgrnam(
-getgrgid (gid_t gid)
+  const char *name
+)
+{
+  char   buf[1024];
+  struct group *g;
+
+  if ( getgrnam_r( name, &gr_group, buf, 1024, &g ) )
+    return NULL;
+
+  return g;
+}
+
+int getgrgid_r(
+  gid_t           gid,
+  struct group   *grp,
+  char           *buffer,
+  size_t          bufsize,
+  struct group  **result
+)
 {
   FILE *fp;
-  char buf[1024];
 
-  if ((fp = fopen ("/etc/group", "r")) == NULL)
+  if ((fp = fopen ("/etc/group", "r")) == NULL) {
-    {
+    errno = EINVAL;
-      return NULL;
+    return -1;
   }
 
-  while (fgets (buf, sizeof (buf), fp))
+  while (fgets (buffer, bufsize, fp)) {
-    {
+    sscanf (buffer, "%[^:]:%[^:]:%d:%s\n",
-      sscanf (buf, "%[^:]:%[^:]:%d:%s\n",
       groupname, password, &gr_group.gr_gid,
       groups);
     gr_group.gr_name = groupname;
@@ -71,18 +90,31 @@ getgrgid (gid_t gid)
     gr_group.gr_mem = gr_mem ;
 
 
-      if (gid == gr_group.gr_gid)
+    if (gid == gr_group.gr_gid) {
-	{
       fclose (fp);
-	  return &gr_group;
+      *result = grp;
+      return 0;
     }
   }
   fclose (fp);
-  return NULL;
+  errno = EINVAL;
+  return -1;
 }
 
-struct group *
+struct group *getgrgid (
-getgrent ()
+  gid_t gid
+)
+{
+  char   buf[1024];
+  struct group *g;
+
+  if ( getgrgid_r( gid, &gr_group, buf, 1024, &g ) )
+    return NULL;
+
+  return g;
+}
+
+struct group *getgrent( void )
 {
   char buf[1024];
 

c/src/lib/libc/getpwent.c

@@ -17,78 +17,109 @@ static char gecos[1024];
 static char dir[1024];
 static char shell[1024];
 
-struct passwd *
+int getpwnam_r(
-getpwnam (name)
+  const char     *name,
-     const char *name;
+  struct passwd  *pwd,
+  char           *buffer,
+  size_t          bufsize,
+  struct passwd **result
+)
 {
   FILE *fp;
-  int uid, gid;
-  char buf[1024];
 
-  if ((fp = fopen ("/etc/passwd", "r")) == NULL)
+  if ((fp = fopen ("/etc/passwd", "r")) == NULL) {
-    {
+    errno = EINVAL;
-      return NULL;
+    return -1;
   }
 
-  while (fgets (buf, sizeof (buf), fp))
+  while (fgets (buffer, bufsize, fp)) {
-    {
+    sscanf (buffer, "%[^:]:%[^:]:%d:%d:%[^:]:%[^:]:%s\n",
-      sscanf (buf, "%[^:]:%[^:]:%d:%d:%[^:]:%[^:]:%s\n",
+        logname, password, &pwd->pw_uid,
+        &pwd->pw_gid, comment, gecos,
+        dir, shell);
+    pwd->pw_name = logname;
+    pwd->pw_passwd = password;
+    pwd->pw_comment = comment;
+    pwd->pw_gecos = gecos;
+    pwd->pw_dir = dir;
+    pwd->pw_shell = shell;
+
+    if (!strcmp (logname, name)) {
+      fclose (fp);
+      *result = pwd;
+      return 0;
+    }
+  }
+  fclose (fp);
+  errno = EINVAL;
+  return -1;
+}
+
+struct passwd *getpwnam(
+  const char *name
+)
+{
+  char   buf[1024];
+  struct passwd *p;
+
+  if ( getpwnam_r( name, &pw_passwd, buf, 1024, &p ) )
+    return NULL;
+
+  return p;
+}
+
+int getpwuid_r(
+  uid_t           uid,
+  struct passwd  *pwd,
+  char           *buffer,
+  size_t          bufsize,
+  struct passwd **result
+)
+{
+  FILE *fp;
+
+  if ((fp = fopen ("/etc/passwd", "r")) == NULL) {
+    errno = EINVAL;
+    return -1;
+  }
+
+  while (fgets (buffer, bufsize, fp)) {
+    sscanf (buffer, "%[^:]:%[^:]:%d:%d:%[^:]:%[^:]:%s\n",
      logname, password, &pw_passwd.pw_uid,
      &pw_passwd.pw_gid, comment, gecos,
      dir, shell);
-      pw_passwd.pw_name = logname;
+    pwd->pw_name = logname;
-      pw_passwd.pw_passwd = password;
+    pwd->pw_passwd = password;
-      pw_passwd.pw_comment = comment;
+    pwd->pw_comment = comment;
-      pw_passwd.pw_gecos = gecos;
+    pwd->pw_gecos = gecos;
-      pw_passwd.pw_dir = dir;
+    pwd->pw_dir = dir;
-      pw_passwd.pw_shell = shell;
+    pwd->pw_shell = shell;
 
-      if (!strcmp (logname, name))
+    if (uid == pwd->pw_uid) {
-	{
       fclose (fp);
-	  return &pw_passwd;
+      *result = pwd;
+      return 0;
     }
   }
   fclose (fp);
-  return NULL;
+  errno = EINVAL;
+  return -1;
 }
 
-struct passwd *
+struct passwd *getpwuid(
-getpwuid (uid_t uid)
+  uid_t uid
+)
 {
-  FILE *fp;
   char   buf[1024];
+  struct passwd *p;
 
-  if ((fp = fopen ("/etc/passwd", "r")) == NULL)
+  if ( getpwuid_r( uid, &pw_passwd, buf, 1024, &p ) )
-    {
     return NULL;
-    }
 
-  while (fgets (buf, sizeof (buf), fp))
+  return p;
-    {
-      sscanf (buf, "%[^:]:%[^:]:%d:%d:%[^:]:%[^:]:%s\n",
-	      logname, password, &pw_passwd.pw_uid,
-	      &pw_passwd.pw_gid, comment, gecos,
-	      dir, shell);
-      pw_passwd.pw_name = logname;
-      pw_passwd.pw_passwd = password;
-      pw_passwd.pw_comment = comment;
-      pw_passwd.pw_gecos = gecos;
-      pw_passwd.pw_dir = dir;
-      pw_passwd.pw_shell = shell;
-
-      if (uid == pw_passwd.pw_uid)
-	{
-	  fclose (fp);
-	  return &pw_passwd;
-	}
-    }
-  fclose (fp);
-  return NULL;
 }
 
-struct passwd *
+struct passwd *getpwent()
-getpwent ()
 {
   char buf[1024];
 
@@ -112,8 +143,7 @@ getpwent ()
   return &pw_passwd;
 }
 
-void
+void setpwent( void )
-setpwent ()
 {
   if (passwd_fp != NULL)
     fclose (passwd_fp);
@@ -121,8 +151,7 @@ setpwent ()
   passwd_fp = fopen ("/etc/passwd", "r");
 }
 
-void
+void endpwent( void )
-endpwent ()
 {
   if (passwd_fp != NULL)
     fclose (passwd_fp);

cpukit/libcsupport/src/getgrent.c

@@ -19,51 +19,70 @@ static char password[1024];
 static char groups[1024];
 static char *gr_mem[16] = { } ;
 
-struct group *
+int getgrnam_r(
-getgrnam (name)
+  const char     *name,
-     const char *name;
+  struct group   *grp,
+  char           *buffer,
+  size_t          bufsize,
+  struct group  **result
+)
 {
   FILE *fp;
-  char buf[1024];
 
-  if ((fp = fopen ("/etc/group", "r")) == NULL)
+  if ((fp = fopen ("/etc/group", "r")) == NULL) {
-    {
+    errno = EINVAL;
-      return NULL;
+    return -1;
   }
 
-  while (fgets (buf, sizeof (buf), fp))
+  while (fgets (buffer, bufsize, fp)) {
-    {
+    sscanf (buffer, "%[^:]:%[^:]:%d:%s\n",
-      sscanf (buf, "%[^:]:%[^:]:%d:%s\n",
+      groupname, password, &grp->gr_gid,
-	      groupname, password, &gr_group.gr_gid,
       groups);
-      gr_group.gr_name = groupname;
+    grp->gr_name = groupname;
-      gr_group.gr_passwd = password;
+    grp->gr_passwd = password;
-      gr_group.gr_mem = gr_mem ;
+    grp->gr_mem = gr_mem ;
     
-      if (!strcmp (groupname, name))
+    if (!strcmp (groupname, name)) {
-	{
       fclose (fp);
-	  return &gr_group;
+      *result = grp;
+      return 0;
     }
   }
   fclose (fp);
-  return NULL;
+  errno = EINVAL;
+  return -1;
 }
 
-struct group *
+struct group *getgrnam(
-getgrgid (gid_t gid)
+  const char *name
+)
+{
+  char   buf[1024];
+  struct group *g;
+
+  if ( getgrnam_r( name, &gr_group, buf, 1024, &g ) )
+    return NULL;
+
+  return g;
+}
+
+int getgrgid_r(
+  gid_t           gid,
+  struct group   *grp,
+  char           *buffer,
+  size_t          bufsize,
+  struct group  **result
+)
 {
   FILE *fp;
-  char buf[1024];
 
-  if ((fp = fopen ("/etc/group", "r")) == NULL)
+  if ((fp = fopen ("/etc/group", "r")) == NULL) {
-    {
+    errno = EINVAL;
-      return NULL;
+    return -1;
   }
 
-  while (fgets (buf, sizeof (buf), fp))
+  while (fgets (buffer, bufsize, fp)) {
-    {
+    sscanf (buffer, "%[^:]:%[^:]:%d:%s\n",
-      sscanf (buf, "%[^:]:%[^:]:%d:%s\n",
       groupname, password, &gr_group.gr_gid,
       groups);
     gr_group.gr_name = groupname;
@@ -71,18 +90,31 @@ getgrgid (gid_t gid)
     gr_group.gr_mem = gr_mem ;
 
 
-      if (gid == gr_group.gr_gid)
+    if (gid == gr_group.gr_gid) {
-	{
       fclose (fp);
-	  return &gr_group;
+      *result = grp;
+      return 0;
     }
   }
   fclose (fp);
-  return NULL;
+  errno = EINVAL;
+  return -1;
 }
 
-struct group *
+struct group *getgrgid (
-getgrent ()
+  gid_t gid
+)
+{
+  char   buf[1024];
+  struct group *g;
+
+  if ( getgrgid_r( gid, &gr_group, buf, 1024, &g ) )
+    return NULL;
+
+  return g;
+}
+
+struct group *getgrent( void )
 {
   char buf[1024];
 

cpukit/libcsupport/src/getpwent.c

@@ -17,78 +17,109 @@ static char gecos[1024];
 static char dir[1024];
 static char shell[1024];
 
-struct passwd *
+int getpwnam_r(
-getpwnam (name)
+  const char     *name,
-     const char *name;
+  struct passwd  *pwd,
+  char           *buffer,
+  size_t          bufsize,
+  struct passwd **result
+)
 {
   FILE *fp;
-  int uid, gid;
-  char buf[1024];
 
-  if ((fp = fopen ("/etc/passwd", "r")) == NULL)
+  if ((fp = fopen ("/etc/passwd", "r")) == NULL) {
-    {
+    errno = EINVAL;
-      return NULL;
+    return -1;
   }
 
-  while (fgets (buf, sizeof (buf), fp))
+  while (fgets (buffer, bufsize, fp)) {
-    {
+    sscanf (buffer, "%[^:]:%[^:]:%d:%d:%[^:]:%[^:]:%s\n",
-      sscanf (buf, "%[^:]:%[^:]:%d:%d:%[^:]:%[^:]:%s\n",
+        logname, password, &pwd->pw_uid,
+        &pwd->pw_gid, comment, gecos,
+        dir, shell);
+    pwd->pw_name = logname;
+    pwd->pw_passwd = password;
+    pwd->pw_comment = comment;
+    pwd->pw_gecos = gecos;
+    pwd->pw_dir = dir;
+    pwd->pw_shell = shell;
+
+    if (!strcmp (logname, name)) {
+      fclose (fp);
+      *result = pwd;
+      return 0;
+    }
+  }
+  fclose (fp);
+  errno = EINVAL;
+  return -1;
+}
+
+struct passwd *getpwnam(
+  const char *name
+)
+{
+  char   buf[1024];
+  struct passwd *p;
+
+  if ( getpwnam_r( name, &pw_passwd, buf, 1024, &p ) )
+    return NULL;
+
+  return p;
+}
+
+int getpwuid_r(
+  uid_t           uid,
+  struct passwd  *pwd,
+  char           *buffer,
+  size_t          bufsize,
+  struct passwd **result
+)
+{
+  FILE *fp;
+
+  if ((fp = fopen ("/etc/passwd", "r")) == NULL) {
+    errno = EINVAL;
+    return -1;
+  }
+
+  while (fgets (buffer, bufsize, fp)) {
+    sscanf (buffer, "%[^:]:%[^:]:%d:%d:%[^:]:%[^:]:%s\n",
      logname, password, &pw_passwd.pw_uid,
      &pw_passwd.pw_gid, comment, gecos,
      dir, shell);
-      pw_passwd.pw_name = logname;
+    pwd->pw_name = logname;
-      pw_passwd.pw_passwd = password;
+    pwd->pw_passwd = password;
-      pw_passwd.pw_comment = comment;
+    pwd->pw_comment = comment;
-      pw_passwd.pw_gecos = gecos;
+    pwd->pw_gecos = gecos;
-      pw_passwd.pw_dir = dir;
+    pwd->pw_dir = dir;
-      pw_passwd.pw_shell = shell;
+    pwd->pw_shell = shell;
 
-      if (!strcmp (logname, name))
+    if (uid == pwd->pw_uid) {
-	{
       fclose (fp);
-	  return &pw_passwd;
+      *result = pwd;
+      return 0;
     }
   }
   fclose (fp);
-  return NULL;
+  errno = EINVAL;
+  return -1;
 }
 
-struct passwd *
+struct passwd *getpwuid(
-getpwuid (uid_t uid)
+  uid_t uid
+)
 {
-  FILE *fp;
   char   buf[1024];
+  struct passwd *p;
 
-  if ((fp = fopen ("/etc/passwd", "r")) == NULL)
+  if ( getpwuid_r( uid, &pw_passwd, buf, 1024, &p ) )
-    {
     return NULL;
-    }
 
-  while (fgets (buf, sizeof (buf), fp))
+  return p;
-    {
-      sscanf (buf, "%[^:]:%[^:]:%d:%d:%[^:]:%[^:]:%s\n",
-	      logname, password, &pw_passwd.pw_uid,
-	      &pw_passwd.pw_gid, comment, gecos,
-	      dir, shell);
-      pw_passwd.pw_name = logname;
-      pw_passwd.pw_passwd = password;
-      pw_passwd.pw_comment = comment;
-      pw_passwd.pw_gecos = gecos;
-      pw_passwd.pw_dir = dir;
-      pw_passwd.pw_shell = shell;
-
-      if (uid == pw_passwd.pw_uid)
-	{
-	  fclose (fp);
-	  return &pw_passwd;
-	}
-    }
-  fclose (fp);
-  return NULL;
 }
 
-struct passwd *
+struct passwd *getpwent()
-getpwent ()
 {
   char buf[1024];
 
@@ -112,8 +143,7 @@ getpwent ()
   return &pw_passwd;
 }
 
-void
+void setpwent( void )
-setpwent ()
 {
   if (passwd_fp != NULL)
     fclose (passwd_fp);
@@ -121,8 +151,7 @@ setpwent ()
   passwd_fp = fopen ("/etc/passwd", "r");
 }
 
-void
+void endpwent( void )
-endpwent ()
 {
   if (passwd_fp != NULL)
     fclose (passwd_fp);