here's a patch which detects & aborts if gpm is run on a serial console
--- src/headers/message.h
+++ src/headers/message.h
@@ -125,2 +125,3 @@
#define GPM_MESS_OPEN_CON "Opening console failed."
+#define GPM_MESS_OPEN_SERIALCON "We seem to be on a serial console."
#define GPM_MESS_READ_FIRST "Error in read()ing first: %s"
--- ./src/gpm.c.org Sat Feb 23 16:42:23 2002
+++ ./src/gpm.c Tue Mar 12 00:20:19 2002
@@ -38,2 +38,3 @@
#include <linux/vt.h> /* VT_GETSTATE */
+#include <linux/serial.h> /* for serial console check */
#include <sys/kd.h> /* KDGETMODE */
@@ -178,8 +154,21 @@
static inline int open_console(const int mode)
{
int fd;
-
- if ((fd=open(option.consolename, mode)) < 0)
- gpm_report(GPM_PR_OOPS,GPM_MESS_OPEN_CON);
+ struct stat sb;
+ int maj, twelve=12;
+ struct serial_struct si;
+
+ fd = open(option.consolename, mode);
+ if (fd != -1) {
+ fstat(fd, &sb);
+ maj = major(sb.st_rdev);
+ if (maj != 4 && (maj < 136 || maj > 143)) {
+ if (ioctl (fd, TIOCLINUX, &twelve) < 0) {
+ if (si.line > 0)
+ gpm_report(GPM_PR_OOPS,GPM_MESS_OPEN_SERIALCON);
+ }
+ }
return fd;
+ } else
+ gpm_report(GPM_PR_OOPS,GPM_MESS_OPEN_CON);
}
-mike
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