diff options
Diffstat (limited to 'sftp_server/userauth.c')
| -rw-r--r-- | sftp_server/userauth.c | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/sftp_server/userauth.c b/sftp_server/userauth.c index 37bdc04a..b5a6055d 100644 --- a/sftp_server/userauth.c +++ b/sftp_server/userauth.c @@ -25,6 +25,7 @@ MA 02111-1307, USA. */ //#include <libssh/sftp.h> #include <security/pam_appl.h> #include <pwd.h> +#include <errno.h> #include <string.h> #include "server.h" @@ -71,8 +72,10 @@ int postauth_conf(char *user){ root=user_chroot(user); if(root){ if((ptr=strstr(root,"$HOME"))){ - if(!pw) + if(!pw){ + ssh_say(1,"Postauth failed : no home directory for user %s\n",user); return -1; // this user has no user directory + } *ptr=0; snprintf(buffer,sizeof(buffer),"%s%s/%s", root,pw->pw_dir,ptr+strlen("$HOME")); @@ -83,18 +86,23 @@ int postauth_conf(char *user){ /* we don't chroot right now because we still need getpwnam() */ char_uid=user_uid(user); if(!char_uid){ - if(!pw) + if(!pw){ + ssh_say(1,"postauth failed : user %s doesn't exist(try to set the uid setting)\n",user); return -1; // user doesn't exist ! + } char_uid=user; } uid=atoi(char_uid); if(uid==0 && char_uid[0]!=0){ pw=getpwnam(char_uid); - if(!pw) + if(!pw){ + ssh_say(1,"postauth failed : user %s does not exist\n",char_uid); return -1; + } uid=pw->pw_uid; } if(root && chroot(buffer)){ + ssh_say(1,"Postauth failed : chroot failed (%s)\n",strerror(errno)); return -1; // cannot chroot } if(root){ @@ -106,13 +114,13 @@ int postauth_conf(char *user){ chdir("/"); } if(setuid(uid)){ + ssh_say(1,"Postauth failed : cannot set uid (%)\n",strerror(errno)); return -1; // cannot setuid } return 0; } - - + struct pam_conv pam_conv ={ password_conv, NULL }; /* returns 1 if authenticated, 0 if failed, -1 if you must leave */ @@ -136,6 +144,7 @@ int auth_password(char *user, char *password){ return -1; return 1; } else { + ssh_say(1,"password auth failed for user %s\n",user); pam_end(pamh,PAM_AUTH_ERR); return 0; } |