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#include "sam.h"
Rune samname[] = L"~~sam~~";
Rune *left[]= {
L"{[(<«",
L"\n",
L"'\"`",
0
};
Rune *right[]= {
L"}])>»",
L"\n",
L"'\"`",
0
};
char RSAM[] = "sam";
char SAMTERM[] = "/bin/aux/samterm";
char HOME[] = "HOME";
char TMPDIR[] = "/tmp";
char SH[] = "rc";
char SHPATH[] = "/bin/rc";
char RX[] = "rx";
char RXPATH[] = "/bin/rx";
char SAMSAVECMD[] = "/bin/rc\n/sys/lib/samsave";
void
dprint(char *z, ...)
{
char buf[BLOCKSIZE];
va_list arg;
va_start(arg, z);
vseprint(buf, &buf[BLOCKSIZE], z, arg);
va_end(arg);
termwrite(buf);
}
void
print_ss(char *s, String *a, String *b)
{
dprint("?warning: %s: `%.*S' and `%.*S'\n", s, a->n, a->s, b->n, b->s);
}
void
print_s(char *s, String *a)
{
dprint("?warning: %s `%.*S'\n", s, a->n, a->s);
}
char*
getuser(void)
{
static char user[64];
int fd;
if(user[0] == 0){
fd = open("/dev/user", 0);
if(fd<0 || read(fd, user, sizeof user-1)<=0)
strcpy(user, "none");
close(fd);
}
return user;
}
int
statfile(char *name, ulong *dev, uvlong *id, long *time, long *length, long *appendonly)
{
Dir *dirb;
dirb = dirstat(name);
if(dirb == nil)
return -1;
if(dev)
*dev = dirb->type|(dirb->dev<<16);
if(id)
*id = dirb->qid.path;
if(time)
*time = dirb->mtime;
if(length)
*length = dirb->length;
if(appendonly)
*appendonly = dirb->mode & DMAPPEND;
free(dirb);
return 1;
}
int
statfd(int fd, ulong *dev, uvlong *id, long *time, long *length, long *appendonly)
{
Dir *dirb;
dirb = dirfstat(fd);
if(dirb == nil)
return -1;
if(dev)
*dev = dirb->type|(dirb->dev<<16);
if(id)
*id = dirb->qid.path;
if(time)
*time = dirb->mtime;
if(length)
*length = dirb->length;
if(appendonly)
*appendonly = dirb->mode & DMAPPEND;
free(dirb);
return 1;
}
void
notifyf(void *a, char *s)
{
USED(a);
if(bpipeok && strcmp(s, "sys: write on closed pipe") == 0)
noted(NCONT);
if(strcmp(s, "interrupt") == 0)
noted(NCONT);
panicking = 1;
rescue();
noted(NDFLT);
}
int
newtmp(int num)
{
int i, fd;
static char tempnam[30];
i = getpid();
do
snprint(tempnam, sizeof tempnam, "%s/%d%.4s%dsam", TMPDIR, num, getuser(), i++);
while(access(tempnam, 0) == 0);
fd = create(tempnam, ORDWR|OCEXEC|ORCLOSE, 0000);
if(fd < 0){
remove(tempnam);
fd = create(tempnam, ORDWR|OCEXEC|ORCLOSE, 0000);
}
return fd;
}
int
waitfor(int pid)
{
int msg;
Waitmsg *w;
while((w = wait()) != nil){
if(w->pid != pid){
free(w);
continue;
}
msg = (w->msg[0] != '\0');
free(w);
return msg;
}
return -1;
}
void
samerr(char *buf)
{
sprint(buf, "%s/sam.err", TMPDIR);
}
void*
emalloc(ulong n)
{
void *p;
p = malloc(n);
if(p == 0)
panic("malloc fails");
memset(p, 0, n);
return p;
}
void*
erealloc(void *p, ulong n)
{
p = realloc(p, n);
if(p == 0)
panic("realloc fails");
return p;
}
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