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Put most of the Debian patches in

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added a lot of cvsignore files
This commit is contained in:
csmall
2002-02-01 23:40:38 +00:00
parent 03a9b5a30f
commit e4c67b2724
15 changed files with 235 additions and 117 deletions
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66
proc/devname.c
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@ -33,7 +33,9 @@
typedef struct tty_map_node {
struct tty_map_node *next;
int major_number; /* not unsigned! Ugh... */
char name[4];
int minor_first, minor_last;
char name[16];
char devfs_type;
} tty_map_node;
static tty_map_node *tty_map = NULL;
@ -46,25 +48,46 @@ static void load_drivers(void){
int bytes;
fd = open("/proc/tty/drivers",O_RDONLY);
if(fd == -1) goto fail;
bytes = read(fd, buf, 9999);
bytes = read(fd, buf, sizeof(buf) - 1);
if(bytes == -1) goto fail;
buf[bytes] = '\0';
p = buf;
while(( p = strstr(p, " /dev/tty") )){
while(( p = strstr(p, " /dev/") )){
tty_map_node *tmn;
int len;
p += 9;
len = strspn(p, "ABCDEFGHIJKLMNOPQRSTUVWXYZ");
if(!len) continue;
if(len>3) continue;
if((len=1) && (*p=='S')) continue;
tmn = malloc(sizeof(tty_map_node));
char *end;
int rc;
p += 6;
end = strchr(p, ' ');
if(!end) continue;
len = end - p;
tmn = calloc(1, sizeof(tty_map_node));
tmn->next = tty_map;
tty_map = tmn;
memset(tmn->name, '\0', 4);
/* if we have a devfs type name such as /dev/tts/%d then strip the %d but
keep a flag. */
if(len >= 3 && !strncmp(end - 2, "%d", 2))
{
len -= 2;
tmn->devfs_type = 1;
}
strncpy(tmn->name, p, len);
p += len;
p = end; /* set p to point past the %d as well if there is one */
while(*p == ' ') p++;
tmn->major_number = atoi(p);
p += strspn(p, "0123456789");
while(*p == ' ') p++;
rc = sscanf(p, "%d-%d", &tmn->minor_first, &tmn->minor_last);
if(rc == 1)
{
tmn->minor_last = tmn->minor_first;
}
else if(rc == 0)
{
/* Can't finish parsing this line so we remove it from the list */
tty_map = tty_map->next;
free(tmn);
}
}
fail:
if(fd != -1) close(fd);
@ -80,11 +103,19 @@ static int driver_name(char * const buf, int maj, int min){
tmn = tty_map;
for(;;){
if(!tmn) return 0;
if(tmn->major_number == maj) break;
if(tmn->major_number == maj && tmn->minor_first <= min && tmn->minor_last >= min) break;
tmn = tmn->next;
}
sprintf(buf, "/dev/tty%s%d", tmn->name, min); /* like "/dev/ttyZZ255" */
if(stat(buf, &sbuf) < 0) return 0;
sprintf(buf, "/dev/%s%d", tmn->name, min); /* like "/dev/ttyZZ255" */
if(tmn->devfs_type)
{
if(stat(buf, &sbuf) < 0) return 0;
}
else if(stat(buf, &sbuf) < 0)
{
sprintf(buf, "/dev/%s", tmn->name); /* like "/dev/ttyZZ255" */
if(stat(buf, &sbuf) < 0) return 0;
}
if(min != minor(sbuf.st_rdev)) return 0;
if(maj != major(sbuf.st_rdev)) return 0;
return 1;
@ -170,10 +201,10 @@ int dev_to_tty(char *ret, int chop, int dev, int pid, unsigned int flags) {
int c;
if((short)dev == (short)-1) goto fail;
if( link_name(tmp, major(dev), minor(dev), pid, "tty" )) goto abbrev;
if(driver_name(tmp, major(dev), minor(dev) )) goto abbrev;
if( link_name(tmp, major(dev), minor(dev), pid, "fd/2" )) goto abbrev;
if( guess_name(tmp, major(dev), minor(dev) )) goto abbrev;
if( link_name(tmp, major(dev), minor(dev), pid, "fd/255")) goto abbrev;
if(driver_name(tmp, major(dev), minor(dev) )) goto abbrev;
fail:
strcpy(ret, "?");
return 1;
@ -181,7 +212,10 @@ abbrev:
if((flags&ABBREV_DEV) && !strncmp(tmp,"/dev/",5) && tmp[5]) tmp += 5;
if((flags&ABBREV_TTY) && !strncmp(tmp,"tty", 3) && tmp[3]) tmp += 3;
if((flags&ABBREV_PTS) && !strncmp(tmp,"pts/", 4) && tmp[4]) tmp += 4;
tmp[chop] = '\0';
/* gotta check before we chop or we may chop someone else's memory */
if(tmp + chop - buf <= PAGE_SIZE)
tmp[chop] = '\0';
/* replace non-ASCII characters with '?' and return the number of chars */
for(;;){
c = *tmp;
tmp++;