diff options
Diffstat (limited to 'community/mingetty/0004-allow-login-name-up-to-LOGIN_NAME_MAX-length.patch')
| -rw-r--r-- | community/mingetty/0004-allow-login-name-up-to-LOGIN_NAME_MAX-length.patch | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/community/mingetty/0004-allow-login-name-up-to-LOGIN_NAME_MAX-length.patch b/community/mingetty/0004-allow-login-name-up-to-LOGIN_NAME_MAX-length.patch new file mode 100644 index 00000000000..4597341648e --- /dev/null +++ b/community/mingetty/0004-allow-login-name-up-to-LOGIN_NAME_MAX-length.patch @@ -0,0 +1,57 @@ +From 198214367eff70b5e021057d121025b2f80e19f3 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Petr=20P=C3=ADsa=C5=99?= <ppisar@redhat.com> +Date: Wed, 10 Nov 2010 16:53:09 +0100 +Subject: [PATCH] Allow login name up to LOGIN_NAME_MAX length + +POSIX mandates 9 bytes minimal length including trailing '\0' +(limits.h:_POSIX_LOGIN_NAME_MAX). Current GNU/Linux run time limit is 256 +(getconf LOGIN_NAME_MAX). + +This patch removes hard-coded 40 bytes limit. +--- + mingetty.c | 18 +++++++++++++++--- + 1 files changed, 15 insertions(+), 3 deletions(-) + +Patch-Source: https://src.fedoraproject.org/rpms/mingetty/raw/f35/f/mingetty-1.08-Allow-login-name-up-to-LOGIN_NAME_MAX-length.patch +diff --git a/mingetty.c b/mingetty.c +index dbc2cce..327e630 100644 +--- a/mingetty.c ++++ b/mingetty.c +@@ -299,10 +299,21 @@ static void do_prompt (int showlogin) + + static char *get_logname (void) + { +- static char logname[40]; ++ long int logname_size; ++ static char *logname = NULL; ++ char *logname_new; + char *bp; + unsigned char c; + ++ logname_size = sysconf (_SC_LOGIN_NAME_MAX); ++ if (logname_size <= 0) ++ error ("Could not get maximal login name length"); ++ ++ logname_new = realloc (logname, logname_size); ++ if (!logname_new) ++ error ("Not enough memory"); ++ logname = logname_new; ++ + tcflush (0, TCIFLUSH); /* flush pending input */ + for (*logname = 0; *logname == 0;) { + do_prompt (1); +@@ -319,8 +330,9 @@ static char *get_logname (void) + } else if (!isprint (c)) + error ("%s: invalid character 0x%x in login" + " name", tty, c); +- else if ((size_t)(bp - logname) >= sizeof (logname) - 1) +- error ("%s: too long login name", tty); ++ else if ((bp - logname) >= (logname_size - 1)) ++ error ("%s: too long login name " ++ "(limit is %ld B)", tty, logname_size); + else + *bp++ = c; + } +-- +1.7.3.2 + |