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make get_key() result const char *, so that it is not modified

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This commit is contained in:
marschap
2006-04-06 13:25:14 +00:00
parent bc01f2e012
commit 743871cff3
36 changed files with 76 additions and 77 deletions
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server/drivers/lcdm001.c
+15 -15
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@@ -288,7 +288,6 @@ lcdm001_flush (Driver *drvthis)
MODULE_EXPORT void
lcdm001_chr (Driver *drvthis, int x, int y, char c)
{
char buf[64]; // char out[10];
int offset;
ValidX(x);
@@ -304,8 +303,7 @@ lcdm001_chr (Driver *drvthis, int x, int y, char c)
offset = (y * width) + x;
framebuf[offset] = c;
snprintf(buf, sizeof(buf), "LCDM001: writing character %02X to position (%d,%d)", c, x, y);
debug (RPT_DEBUG, buf);
debug (RPT_DEBUG, "LCDM001: writing character %02X to position (%d,%d)", c, x, y);
}
/////////////////////////////////////////////////////////////////
@@ -437,25 +435,27 @@ lcdm001_old_icon (Driver *drvthis, int which, char dest)
//////////////////////////////////////////////////////////////////////
// Tries to read a character from an input device...
//
// Return 0 for "nothing available".
// Return NULL for "nothing available".
//
/* TODO: write for net API function (get_key) that returns a string */
MODULE_EXPORT char
lcdm001_getkey (Driver *drvthis)
MODULE_EXPORT const char *
lcdm001_get_key (Driver *drvthis)
{
char in = 0;
char in = '\0';
const char *key = NULL;
read (fd, &in, 1);
if (in == pause_key) {
in='A';
key = "Escape";
} else if (in == back_key) {
in='B';
key = "Left";
} else if (in == forward_key) {
in='C';
key = "Right";
} else if (in == main_menu_key) {
in='D';
key = "Enter";
}
/*debug: if(in) fprintf(stderr,"key: %c",in); */
return in;
debug(RPT_DEBUG, "%s, get_key: %s",
drvthis->name, (key != NULL) ? key : "<null>");
return key;
}