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* passwd.cc: Change name of passwd_in_memory_p to passwd_state.

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Change type to enum. Change storage class to static. Adjust comments.
        (read_etc_passwd): Set passwd_state to different values when loaded
        from file in contrast to being emulated.
        (search_for): Return default passwd entry if passwd is emulated or
        it's a request for the current user. Otherwise return NULL.
This commit is contained in:
Corinna Vinschen 2000-07-26 11:48:38 +00:00
parent 00edcbb0cb
commit 1d8fc847ee
2 changed files with 38 additions and 15 deletions
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9
winsup/cygwin/ChangeLog
View File

@ -1,3 +1,12 @@
Wed Jul 26 10:59:00 2000 Corinna Vinschen <corinna@vinschen.de>
* passwd.cc: Change name of passwd_in_memory_p to passwd_state.
Change type to enum. Change storage class to static. Adjust comments.
(read_etc_passwd): Set passwd_state to different values when loaded
from file in contrast to being emulated.
(search_for): Return default passwd entry if passwd is emulated or
it's a request for the current user. Otherwise return NULL.
Tue Jul 25 21:50:42 2000 Christopher Faylor <cgf@cygnus.com> Tue Jul 25 21:50:42 2000 Christopher Faylor <cgf@cygnus.com>
* syscalls.cc (statfs): Use path_conv method to convert input path. * syscalls.cc (statfs): Use path_conv method to convert input path.

44
winsup/cygwin/passwd.cc
View File

@ -21,10 +21,16 @@ static struct passwd *passwd_buf = NULL; /* passwd contents in memory */
static int curr_lines = 0; static int curr_lines = 0;
static int max_lines = 0; static int max_lines = 0;
/* Set to 1 when /etc/passwd has been read in by read_etc_passwd (). */ /* Set to loaded when /etc/passwd has been read in by read_etc_passwd ().
/* Functions in this file need to check the value of passwd_in_memory_p Set to emulated if passwd is emulated. */
/* Functions in this file need to check the value of passwd_state
and read in the password file if it isn't set. */ and read in the password file if it isn't set. */
int passwd_in_memory_p = 0; enum pwd_state {
uninitialized = 0,
emulated,
loaded
};
static pwd_state passwd_state = uninitialized;
/* Position in the passwd cache */ /* Position in the passwd cache */
#ifdef _MT_SAFE #ifdef _MT_SAFE
@ -101,8 +107,8 @@ add_pwd_line (char *line)
} }
/* Read in /etc/passwd and save contents in the password cache. /* Read in /etc/passwd and save contents in the password cache.
This sets passwd_in_memory_p to 1 so functions in this file can This sets passwd_state to loaded or emulated so functions in this file can
tell that /etc/passwd has been read in */ tell that /etc/passwd has been read in or will be emulated. */
void void
read_etc_passwd () read_etc_passwd ()
{ {
@ -121,6 +127,7 @@ read_etc_passwd ()
} }
fclose (f); fclose (f);
passwd_state = loaded;
} }
else else
{ {
@ -135,8 +142,8 @@ read_etc_passwd ()
snprintf (linebuf, sizeof (linebuf), "%s::%u:%u::%s:/bin/sh", user_name, snprintf (linebuf, sizeof (linebuf), "%s::%u:%u::%s:/bin/sh", user_name,
DEFAULT_UID, DEFAULT_GID, getenv ("HOME") ?: "/"); DEFAULT_UID, DEFAULT_GID, getenv ("HOME") ?: "/");
add_pwd_line (linebuf); add_pwd_line (linebuf);
passwd_state = emulated;
} }
passwd_in_memory_p = 1;
} }
/* Cygwin internal */ /* Cygwin internal */
@ -161,13 +168,20 @@ search_for (uid_t uid, const char *name)
return res; return res;
} }
return default_pw; /* Return default passwd entry if passwd is emulated or it's a
request for the current user. */
if (passwd_state != loaded
|| (! name && uid == myself->uid)
|| ( name && strcasematch(name, myself->username)))
return default_pw;
return NULL;
} }
extern "C" struct passwd * extern "C" struct passwd *
getpwuid (uid_t uid) getpwuid (uid_t uid)
{ {
if (!passwd_in_memory_p) if (passwd_state == uninitialized)
read_etc_passwd(); read_etc_passwd();
return search_for (uid, 0); return search_for (uid, 0);
@ -176,7 +190,7 @@ getpwuid (uid_t uid)
extern "C" struct passwd * extern "C" struct passwd *
getpwnam (const char *name) getpwnam (const char *name)
{ {
if (!passwd_in_memory_p) if (passwd_state == uninitialized)
read_etc_passwd(); read_etc_passwd();
return search_for (0, name); return search_for (0, name);
@ -185,7 +199,7 @@ getpwnam (const char *name)
extern "C" struct passwd * extern "C" struct passwd *
getpwent (void) getpwent (void)
{ {
if (!passwd_in_memory_p) if (passwd_state == uninitialized)
read_etc_passwd(); read_etc_passwd();
if (pw_pos < curr_lines) if (pw_pos < curr_lines)
@ -197,7 +211,7 @@ getpwent (void)
extern "C" struct passwd * extern "C" struct passwd *
getpwduid (uid_t) getpwduid (uid_t)
{ {
if (!passwd_in_memory_p) if (passwd_state == uninitialized)
read_etc_passwd(); read_etc_passwd();
return NULL; return NULL;
@ -206,7 +220,7 @@ getpwduid (uid_t)
extern "C" void extern "C" void
setpwent (void) setpwent (void)
{ {
if (!passwd_in_memory_p) if (passwd_state == uninitialized)
read_etc_passwd(); read_etc_passwd();
pw_pos = 0; pw_pos = 0;
@ -215,7 +229,7 @@ setpwent (void)
extern "C" void extern "C" void
endpwent (void) endpwent (void)
{ {
if (!passwd_in_memory_p) if (passwd_state == uninitialized)
read_etc_passwd(); read_etc_passwd();
pw_pos = 0; pw_pos = 0;
@ -224,7 +238,7 @@ endpwent (void)
extern "C" int extern "C" int
setpassent () setpassent ()
{ {
if (!passwd_in_memory_p) if (passwd_state == uninitialized)
read_etc_passwd(); read_etc_passwd();
return 0; return 0;
@ -240,7 +254,7 @@ getpass (const char * prompt)
#endif #endif
struct termios ti, newti; struct termios ti, newti;
if (!passwd_in_memory_p) if (passwd_state == uninitialized)
read_etc_passwd(); read_etc_passwd();
if (dtable.not_open (0)) if (dtable.not_open (0))