svn commit: r358065 - head/lib/libpam/modules/pam_login_access

[Cy Schubert]

Author: cy
Date: Tue Feb 18 11:26:52 2020
New Revision: 358065
URL: https://svnweb.freebsd.org/changeset/base/358065

Log:
  The words ALL, LOCAL, and EXCEPT have special meaning and are documented
  as in the login.access(5) man page. However strcasecmp() is used to compare
  for these special strings. Because of this User accounts and groups with
  the corresponding lowercase names are misintrepreted to have special
  whereas they should not.
  
  This commit fixes this, conforming to the man page and to how the Linux
  pam_access(8) handles these special words.
  
  Approved by:	des (implicit, blanket)

Modified:
  head/lib/libpam/modules/pam_login_access/login_access.c

Modified: head/lib/libpam/modules/pam_login_access/login_access.c
==============================================================================
--- head/lib/libpam/modules/pam_login_access/login_access.c	Tue Feb 18 11:26:49 2020	(r358064)
+++ head/lib/libpam/modules/pam_login_access/login_access.c	Tue Feb 18 11:26:52 2020	(r358065)
@@ -125,7 +125,7 @@ list_match(char *list, const char *item,
      */
 
     for (tok = strtok(list, sep); tok != NULL; tok = strtok((char *) 0, sep)) {
-	if (strcasecmp(tok, "EXCEPT") == 0)	/* EXCEPT: give up */
+	if (strcmp(tok, "EXCEPT") == 0)	/* EXCEPT: give up */
 	    break;
 	if ((match = (*match_fn)(tok, item)) != 0)	/* YES */
 	    break;
@@ -133,7 +133,7 @@ list_match(char *list, const char *item,
     /* Process exceptions to matches. */
 
     if (match != NO) {
-	while ((tok = strtok((char *) 0, sep)) && strcasecmp(tok, "EXCEPT"))
+	while ((tok = strtok((char *) 0, sep)) && strcmp(tok, "EXCEPT"))
 	     /* VOID */ ;
 	if (tok == NULL || list_match((char *) 0, item, match_fn) == NO)
 	    return (match);
@@ -219,7 +219,7 @@ from_match(const char *tok, const char *string)
 	if ((str_len = strlen(string)) > (tok_len = strlen(tok))
 	    && strcasecmp(tok, string + str_len - tok_len) == 0)
 	    return (YES);
-    } else if (strcasecmp(tok, "LOCAL") == 0) {	/* local: no dots */
+    } else if (strcmp(tok, "LOCAL") == 0) {	/* local: no dots */
 	if (strchr(string, '.') == 0)
 	    return (YES);
     } else if (tok[(tok_len = strlen(tok)) - 1] == '.'	/* network */
@@ -240,7 +240,7 @@ string_match(const char *tok, const char *string)
      * Otherwise, return YES if the token fully matches the string.
      */
 
-    if (strcasecmp(tok, "ALL") == 0) {		/* all: always matches */
+    if (strcmp(tok, "ALL") == 0) {		/* all: always matches */
 	return (YES);
     } else if (strcasecmp(tok, string) == 0) {	/* try exact match */
 	return (YES);