MFH: r264781, r267669, r267670

Simplify reading pw.conf(5) by using getline(3)

Removed compatibility with pre FreeBSD 2.2 pw_mkdb command [1]
Fix some broken indentattion [1]

Fix changing the username [2]

PR:		189172 [1], 189173 [2]
Submitted by:	fullermd@over-yonder.net [1][2]

3 files changed, 15 insertions, 38 deletions

diff --git a/usr.sbin/pw/pw.h b/usr.sbin/pw/pw.h
index 1ff69a6..a1ed0c4 100644
--- a/usr.sbin/pw/pw.h
+++ b/usr.sbin/pw/pw.h
@@ -26,6 +26,7 @@
  * $FreeBSD$
  */
 
+#define _WITH_GETLINE
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
diff --git a/usr.sbin/pw/pw_conf.c b/usr.sbin/pw/pw_conf.c
index edeb015..1289b3e 100644
--- a/usr.sbin/pw/pw_conf.c
+++ b/usr.sbin/pw/pw_conf.c
@@ -226,35 +226,21 @@ newstr(char const * p)
 struct userconf *
 read_userconfig(char const * file)
 {
-	FILE           *fp;
+	FILE	*fp;
+	char	*buf, *p;
+	size_t	linecap;
+	ssize_t	linelen;
+
+	buf = NULL;
+	linecap = 0;
 
 	extendarray(&config.groups, &config.numgroups, 200);
 	memset(config.groups, 0, config.numgroups * sizeof(char *));
 	if (file == NULL)
 		file = _PATH_PW_CONF;
-	if ((fp = fopen(file, "r")) != NULL) {
-		int	    buflen = LNBUFSZ;
-		char       *buf = malloc(buflen);
-
-	nextline:
-		while (fgets(buf, buflen, fp) != NULL) {
-			char           *p;
-
-			while ((p = strchr(buf, '\n')) == NULL) {
-				int	  l;
-				if (extendline(&buf, &buflen, buflen + LNBUFSZ) == -1) {
-					int	ch;
-					while ((ch = fgetc(fp)) != '\n' && ch != EOF);
-					goto nextline;	/* Ignore it */
-				}
-				l = strlen(buf);
-				if (fgets(buf + l, buflen - l, fp) == NULL)
-					break;	/* Unterminated last line */
-			}
-
-			if (p != NULL)
-				*p = '\0';
 
+	if ((fp = fopen(file, "r")) != NULL) {
+		while ((linelen = getline(&buf, &linecap, fp)) > 0) {
 			if (*buf && (p = strtok(buf, " \t\r\n=")) != NULL && *p != '#') {
 				static char const toks[] = " \t\r\n,=";
 				char           *q = strtok(NULL, toks);
@@ -368,7 +354,8 @@ read_userconfig(char const * file)
 				}
 			}
 		}
-		free(buf);
+		if (linecap > 0)
+			free(buf);
 		fclose(fp);
 	}
 	return &config;
diff --git a/usr.sbin/pw/pwupd.c b/usr.sbin/pw/pwupd.c
index 22662db..c2a9a53 100644
--- a/usr.sbin/pw/pwupd.c
+++ b/usr.sbin/pw/pwupd.c
@@ -45,9 +45,6 @@ static const char rcsid[] =
 
 #include "pwupd.h"
 
-#define HAVE_PWDB_C	1
-#define	HAVE_PWDB_U	1
-
 static char pathpwd[] = _PATH_PWD;
 static char * pwpath = pathpwd;
  
@@ -112,22 +109,14 @@ pw_update(struct passwd * pwd, char const * user)
 {
 	int             rc = 0;
 
-	/*
-	 * First, let's check the see if the database is alright
-	 * Note: -C is only available in FreeBSD 2.2 and above
-	 */
-#ifdef HAVE_PWDB_C
 	rc = pwdb("-C", (char *)NULL);	/* Check only */
 	if (rc == 0) {
-#else
-	{				/* No -C */
-#endif
 		int pfd, tfd;
 		struct passwd *pw = NULL;
 		struct passwd *old_pw = NULL;
 
-	       	if (pwd != NULL)
-		       pw = pw_dup(pwd);
+		if (pwd != NULL)
+			pw = pw_dup(pwd);
 
 		if (user != NULL)
 			old_pw = GETPWNAM(user);
@@ -150,7 +139,7 @@ pw_update(struct passwd * pwd, char const * user)
 		 * in case of deletion of a user, the whole database
 		 * needs to be regenerated
 		 */
-		if (pw_mkdb(pw != NULL ? user : NULL) == -1) {
+		if (pw_mkdb(pw != NULL ? pw->pw_name : NULL) == -1) {
 			pw_fini();
 			err(1, "pw_mkdb()");
 		}