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#include <u.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/wait.h>
#include <pwd.h>
#include <signal.h>
#include <fcntl.h>
#include <errno.h>
#include "sam.h"
Rune samname[] = { '~', '~', 's', 'a', 'm', '~', '~', 0 };
static Rune l1[] = { '{', '[', '(', '<', 0253, 0};
static Rune l2[] = { '\n', 0};
static Rune l3[] = { '\'', '"', '`', 0};
Rune *left[]= { l1, l2, l3, 0};
static Rune r1[] = {'}', ']', ')', '>', 0273, 0};
static Rune r2[] = {'\n', 0};
static Rune r3[] = {'\'', '"', '`', 0};
Rune *right[]= { r1, r2, r3, 0};
#ifndef SAMTERMNAME
#define SAMTERMNAME "samterm"
#endif
#ifndef TMPDIRNAME
#define TMPDIRNAME "/tmp"
#endif
#ifndef SHNAME
#define SHNAME "sh"
#endif
#ifndef SHPATHNAME
#define SHPATHNAME "/bin/sh"
#endif
#ifndef RXNAME
#define RXNAME "ssh"
#endif
#ifndef RXPATHNAME
#define RXPATHNAME "ssh"
#endif
char RSAM[] = "sam";
char SAMTERM[] = SAMTERMNAME;
char HOME[] = "HOME";
char TMPDIR[] = TMPDIRNAME;
char SH[] = SHNAME;
char SHPATH[] = SHPATHNAME;
char RX[] = RXNAME;
char RXPATH[] = RXPATHNAME;
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];
if(user[0] == 0){
struct passwd *pw = getpwuid(getuid());
strcpy(user, pw ? pw->pw_name : "nobody");
}
return user;
}
int
statfile(char *name, ulong *dev, uvlong *id, long *time, long *length, long *appendonly)
{
struct stat dirb;
if (stat(name, &dirb) == -1)
return -1;
if (dev)
*dev = dirb.st_dev;
if (id)
*id = dirb.st_ino;
if (time)
*time = dirb.st_mtime;
if (length)
*length = dirb.st_size;
if(appendonly)
*appendonly = 0;
return 1;
}
int
statfd(int fd, ulong *dev, uvlong *id, long *time, long *length, long *appendonly)
{
struct stat dirb;
if (fstat(fd, &dirb) == -1)
return -1;
if (dev)
*dev = dirb.st_dev;
if (id)
*id = dirb.st_ino;
if (time)
*time = dirb.st_mtime;
if (length)
*length = dirb.st_size;
if(appendonly)
*appendonly = 0;
return 1;
}
void
hup(int sig)
{
panicking = 1; // ???
rescue();
exit(1);
}
int
notify(void(*f)(void *, char *))
{
signal(SIGINT, SIG_IGN);
signal(SIGPIPE, SIG_IGN); // XXX - bpipeok?
signal(SIGHUP, hup);
return 1;
}
void
notifyf(void *a, char *b) /* never called; hup is instead */
{
}
static int
temp_file(char *buf, int bufsize)
{
char *tmp;
int n, fd;
tmp = getenv("TMPDIR");
if (!tmp)
tmp = TMPDIR;
n = snprint(buf, bufsize, "%s/sam.%d.XXXXXXX", tmp, getuid());
if (bufsize <= n)
return -1;
if ((fd = mkstemp(buf)) < 0) /* SES - linux sometimes uses mode 0666 */
return -1;
if (fcntl(fd, F_SETFD, fcntl(fd,F_GETFD,0) | FD_CLOEXEC) < 0)
return -1;
return fd;
}
int
tempdisk(void)
{
char buf[4096];
int fd = temp_file(buf, sizeof buf);
if (fd >= 0)
remove(buf);
return fd;
}
#undef wait
int
waitfor(int pid)
{
int wm;
int rpid;
do; while((rpid = wait(&wm)) != pid && rpid != -1);
return (WEXITSTATUS(wm));
}
void
samerr(char *buf)
{
sprint(buf, "%s/sam.%s.err", TMPDIR, getuser());
}
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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