diff options
Diffstat (limited to 'modules/pam_filter/upperLOWER/upperLOWER.c')
-rw-r--r-- | modules/pam_filter/upperLOWER/upperLOWER.c | 144 |
1 files changed, 0 insertions, 144 deletions
diff --git a/modules/pam_filter/upperLOWER/upperLOWER.c b/modules/pam_filter/upperLOWER/upperLOWER.c deleted file mode 100644 index c0fc5b17..00000000 --- a/modules/pam_filter/upperLOWER/upperLOWER.c +++ /dev/null @@ -1,144 +0,0 @@ -/* - * This is a sample filter program, for use with pam_filter (a module - * provided with Linux-PAM). This filter simply transposes upper and - * lower case letters, it is intended for demonstration purposes and - * it serves no purpose other than to annoy the user... - */ - -#include "config.h" - -#include <stdio.h> -#include <stdlib.h> -#include <syslog.h> -#include <sys/time.h> -#include <sys/types.h> -#include <unistd.h> - -#include "pam_filter.h" -#include <security/pam_modules.h> -#include <security/_pam_macros.h> -#include <security/pam_modutil.h> - -/* ---------------------------------------------------------------- */ - -#include <ctype.h> - -static void do_transpose(char *buffer,int len) -{ - int i; - for (i=0; i<len; ++i) { - if (islower(buffer[i])) { - buffer[i] = toupper(buffer[i]); - } else { - buffer[i] = tolower(buffer[i]); - } - } -} - -extern char **environ; - -int main(int argc, char **argv UNUSED) -{ - char buffer[BUFSIZ]; - fd_set readers; - void (*before_user)(char *,int); - void (*before_app)(char *,int); - - openlog("upperLOWER", LOG_CONS|LOG_PID, LOG_AUTHPRIV); - -#ifdef DEBUG - { - int i; - - fprintf(stderr,"environment :[\r\n"); - for (i=0; environ[i]; ++i) { - fprintf(stderr,"-> %s\r\n",environ[i]); - } - fprintf(stderr,"]: end\r\n"); - } -#endif - - if (argc != 1) { -#ifdef DEBUG - fprintf(stderr,"filter invoked as conventional executable\n"); -#else - syslog(LOG_ERR, "filter invoked as conventional executable"); -#endif - exit(1); - } - - before_user = before_app = do_transpose; /* assign filter functions */ - - /* enter a loop that deals with the input and output of the - user.. passing it to and from the application */ - - FD_ZERO(&readers); /* initialize reading mask */ - - for (;;) { - - FD_SET(APPOUT_FILENO, &readers); /* wake for output */ - FD_SET(APPERR_FILENO, &readers); /* wake for error */ - FD_SET(STDIN_FILENO, &readers); /* wake for input */ - - if ( select(APPTOP_FILE,&readers,NULL,NULL,NULL) < 0 ) { -#ifdef DEBUG - fprintf(stderr,"select failed\n"); -#else - syslog(LOG_WARNING,"select failed"); -#endif - break; - } - - /* application errors */ - - if ( FD_ISSET(APPERR_FILENO,&readers) ) { - int got = pam_modutil_read(APPERR_FILENO, buffer, BUFSIZ); - if (got <= 0) { - break; - } else { - /* translate to give to real terminal */ - if (before_user != NULL) - before_user(buffer, got); - if (pam_modutil_write(STDERR_FILENO, buffer, got) != got ) { - syslog(LOG_WARNING,"couldn't write %d bytes?!",got); - break; - } - } - } else if ( FD_ISSET(APPOUT_FILENO,&readers) ) { /* app output */ - int got = pam_modutil_read(APPOUT_FILENO, buffer, BUFSIZ); - if (got <= 0) { - break; - } else { - /* translate to give to real terminal */ - if (before_user != NULL) - before_user(buffer, got); - if (pam_modutil_write(STDOUT_FILENO, buffer, got) != got ) { - syslog(LOG_WARNING,"couldn't write %d bytes!?",got); - break; - } - } - } - - if ( FD_ISSET(STDIN_FILENO, &readers) ) { /* user input */ - int got = pam_modutil_read(STDIN_FILENO, buffer, BUFSIZ); - if (got < 0) { - syslog(LOG_WARNING,"user input junked"); - break; - } else if (got) { - /* translate to give to application */ - if (before_app != NULL) - before_app(buffer, got); - if (pam_modutil_write(APPIN_FILENO, buffer, got) != got ) { - syslog(LOG_WARNING,"couldn't pass %d bytes!?",got); - break; - } - } else { - /* nothing received -- an error? */ - syslog(LOG_WARNING,"user input null?"); - break; - } - } - } - - exit(0); -} |