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authorGleb Smirnoff <glebius@FreeBSD.org>2013-06-19 11:36:13 +0000
committerGleb Smirnoff <glebius@FreeBSD.org>2013-06-19 11:36:13 +0000
commit92ca6ea990f50c4c8bd3c485bcb54646a590f0ba (patch)
treefd105835d2f614bac3c24fd429fa3bea8f98ef8c /pw/pwupd.c
parent1d39c9328d1f55897e016da0574741cf289c9424 (diff)
parent6e958ef1b49b6a86d2c9a1fd68f98f9e84842aaa (diff)
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Merge fresh head.
Diffstat (limited to 'pw/pwupd.c')
-rw-r--r--pw/pwupd.c125
1 files changed, 47 insertions, 78 deletions
diff --git a/pw/pwupd.c b/pw/pwupd.c
index cb8456d..22662db 100644
--- a/pw/pwupd.c
+++ b/pw/pwupd.c
@@ -34,7 +34,10 @@ static const char rcsid[] =
#include <string.h>
#include <unistd.h>
#include <stdarg.h>
+#include <pwd.h>
+#include <libutil.h>
#include <errno.h>
+#include <err.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/param.h>
@@ -53,12 +56,10 @@ setpwdir(const char * dir)
{
if (dir == NULL)
return -1;
- else {
- char * d = malloc(strlen(dir)+1);
- if (d == NULL)
- return -1;
- pwpath = strcpy(d, dir);
- }
+ else
+ pwpath = strdup(dir);
+ if (pwpath == NULL)
+ return -1;
return 0;
}
@@ -71,7 +72,7 @@ getpwpath(char const * file)
return pathbuf;
}
-int
+static int
pwdb(char *arg,...)
{
int i = 0;
@@ -102,47 +103,15 @@ pwdb(char *arg,...)
if (WEXITSTATUS(i))
i = EIO;
}
+ va_end(ap);
return i;
}
-int
-fmtpwentry(char *buf, struct passwd * pwd, int type)
-{
- int l;
- char *pw;
-
- pw = (type == PWF_MASTER) ?
- ((pwd->pw_passwd == NULL) ? "" : pwd->pw_passwd) : "*";
-
- if (type == PWF_PASSWD)
- l = sprintf(buf, "%s:*:%ld:%ld:%s:%s:%s\n",
- pwd->pw_name, (long) pwd->pw_uid, (long) pwd->pw_gid,
- pwd->pw_gecos ? pwd->pw_gecos : "User &",
- pwd->pw_dir, pwd->pw_shell);
- else
- l = sprintf(buf, "%s:%s:%ld:%ld:%s:%lu:%lu:%s:%s:%s\n",
- pwd->pw_name, pw, (long) pwd->pw_uid, (long) pwd->pw_gid,
- pwd->pw_class ? pwd->pw_class : "",
- (unsigned long) pwd->pw_change,
- (unsigned long) pwd->pw_expire,
- pwd->pw_gecos, pwd->pw_dir, pwd->pw_shell);
- return l;
-}
-
-
-int
-fmtpwent(char *buf, struct passwd * pwd)
-{
- return fmtpwentry(buf, pwd, PWF_STANDARD);
-}
-
static int
-pw_update(struct passwd * pwd, char const * user, int mode)
+pw_update(struct passwd * pwd, char const * user)
{
int rc = 0;
- ENDPWENT();
-
/*
* First, let's check the see if the database is alright
* Note: -C is only available in FreeBSD 2.2 and above
@@ -153,61 +122,61 @@ pw_update(struct passwd * pwd, char const * user, int mode)
#else
{ /* No -C */
#endif
- char pfx[PWBUFSZ];
- char pwbuf[PWBUFSZ];
- int l = snprintf(pfx, PWBUFSZ, "%s:", user);
-#ifdef HAVE_PWDB_U
- int isrename = pwd!=NULL && strcmp(user, pwd->pw_name);
-#endif
+ int pfd, tfd;
+ struct passwd *pw = NULL;
+ struct passwd *old_pw = NULL;
+
+ if (pwd != NULL)
+ pw = pw_dup(pwd);
+
+ if (user != NULL)
+ old_pw = GETPWNAM(user);
+ if (pw_init(pwpath, NULL))
+ err(1, "pw_init()");
+ if ((pfd = pw_lock()) == -1) {
+ pw_fini();
+ err(1, "pw_lock()");
+ }
+ if ((tfd = pw_tmp(-1)) == -1) {
+ pw_fini();
+ err(1, "pw_tmp()");
+ }
+ if (pw_copy(pfd, tfd, pw, old_pw) == -1) {
+ pw_fini();
+ err(1, "pw_copy()");
+ }
/*
- * Update the passwd file first
+ * in case of deletion of a user, the whole database
+ * needs to be regenerated
*/
- if (pwd == NULL)
- *pwbuf = '\0';
- else
- fmtpwentry(pwbuf, pwd, PWF_PASSWD);
-
- if (l < 0)
- l = 0;
- rc = fileupdate(getpwpath(_PASSWD), 0644, pwbuf, pfx, l, mode);
- if (rc == 0) {
-
- /*
- * Then the master.passwd file
- */
- if (pwd != NULL)
- fmtpwentry(pwbuf, pwd, PWF_MASTER);
- rc = fileupdate(getpwpath(_MASTERPASSWD), 0600, pwbuf, pfx, l, mode);
- if (rc == 0) {
-#ifdef HAVE_PWDB_U
- if (mode == UPD_DELETE || isrename)
-#endif
- rc = pwdb(NULL);
-#ifdef HAVE_PWDB_U
- else
- rc = pwdb("-u", user, (char *)NULL);
-#endif
- }
+ if (pw_mkdb(pw != NULL ? user : NULL) == -1) {
+ pw_fini();
+ err(1, "pw_mkdb()");
}
+ free(pw);
+ pw_fini();
}
- return rc;
+ return 0;
}
int
addpwent(struct passwd * pwd)
{
- return pw_update(pwd, pwd->pw_name, UPD_CREATE);
+ return pw_update(pwd, NULL);
}
int
chgpwent(char const * login, struct passwd * pwd)
{
- return pw_update(pwd, login, UPD_REPLACE);
+ return pw_update(pwd, login);
}
int
delpwent(struct passwd * pwd)
{
- return pw_update(NULL, pwd->pw_name, UPD_DELETE);
+ char login[MAXLOGNAME];
+
+ strlcpy(login, pwd->pw_name, MAXLOGNAME);
+ return pw_update(NULL, login);
}