plan9fox/sys/src/cmd/bind.c

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#include <u.h>
#include <libc.h>
void usage(void);
void
main(int argc, char *argv[])
{
ulong flag = 0;
int qflag = 0;
ARGBEGIN{
case 'a':
flag |= MAFTER;
break;
case 'b':
flag |= MBEFORE;
break;
case 'c':
flag |= MCREATE;
break;
case 'q':
qflag = 1;
break;
default:
usage();
}ARGEND
if(argc != 2 || (flag&MAFTER)&&(flag&MBEFORE))
usage();
if(bind(argv[0], argv[1], flag) < 0){
if(qflag)
exits(0);
/* try to give a less confusing error than the default */
if(access(argv[0], 0) < 0)
fprint(2, "bind: %s: %r\n", argv[0]);
else if(access(argv[1], 0) < 0)
fprint(2, "bind: %s: %r\n", argv[1]);
else
fprint(2, "bind %s %s: %r\n", argv[0], argv[1]);
exits("bind");
}
exits(0);
}
void
usage(void)
{
fprint(2, "usage: bind [-b|-a|-c|-bc|-ac] new old\n");
exits("usage");
}