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init: test for vt terminal with VT_OPENQRY,

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assume that anything else is TERM=vt102, not TERM=linux.
 (Serial console test is less correct)
 Tentatively closes bug 195.

function                                             old     new   delta
init_main                                            946     919     -27
This commit is contained in:
Denis Vlasenko 2009-03-19 02:35:44 +00:00
parent 5c2b81470d
commit 5981ba5843
1 changed files with 5 additions and 27 deletions
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32
init/init.c
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@ -14,6 +14,7 @@
#include <paths.h>
#include <sys/reboot.h>
#include <sys/resource.h>
#include <linux/vt.h>
/* Was a CONFIG_xxx option. A lot of people were building
@ -161,33 +162,9 @@ static void message(int where, const char *fmt, ...)
}
}
/* From <linux/serial.h> */
struct serial_struct {
int type;
int line;
unsigned int port;
int irq;
int flags;
int xmit_fifo_size;
int custom_divisor;
int baud_base;
unsigned short close_delay;
char io_type;
char reserved_char[1];
int hub6;
unsigned short closing_wait; /* time to wait before closing */
unsigned short closing_wait2; /* no longer used... */
unsigned char *iomem_base;
unsigned short iomem_reg_shift;
unsigned int port_high;
unsigned long iomap_base; /* cookie passed into ioremap */
int reserved[1];
/* Paranoia (imagine 64bit kernel overwriting 32bit userspace stack) */
uint32_t bbox_reserved[16];
};
static void console_init(void)
{
struct serial_struct sr;
int vtno;
char *s;
s = getenv("CONSOLE");
@ -211,8 +188,9 @@ static void console_init(void)
}
s = getenv("TERM");
if (ioctl(STDIN_FILENO, TIOCGSERIAL, &sr) == 0) {
/* Force the TERM setting to vt102 for serial console
if (ioctl(STDIN_FILENO, VT_OPENQRY, &vtno) != 0) {
/* Not a linux terminal, probably serial console.
* Force the TERM setting to vt102
* if TERM is set to linux (the default) */
if (!s || strcmp(s, "linux") == 0)
putenv((char*)"TERM=vt102");