#pragma prototyped
static const char usage[] =
"[-?\n@(#)$Id: mkfifo (AT&T Research) 1999-04-20 $\n]"
USAGE_LICENSE
"[+NAME?mkfifo - make FIFOs (named pipes)]"
"[+DESCRIPTION?\bmkfifo\b creates one or more FIFO's. By "
"default, the mode of created FIFO is \ba=rw\b minus the "
"bits set in the \bumask\b(1).]"
"[m:mode]:[mode?Set the mode of created FIFO to \amode\a. "
"\amode\a is symbolic or octal mode as in \bchmod\b(1). Relative "
"modes assume an initial mode of \ba=rw\b.]"
"\n"
"\nfile ...\n"
"\n"
"[+EXIT STATUS?]{"
"[+0?All FIFO's created successfully.]"
"[+>0?One or more FIFO's could not be created.]"
"}"
"[+SEE ALSO?\bchmod\b(1), \bumask\b(1)]"
;
#include <cmd.h>
#include <ls.h>
#define RWALL (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH)
int
b_mkfifo(int argc, char *argv[], void* context)
{
register char *arg;
register mode_t mode=RWALL, mask=0;
register int n;
cmdinit(argc, argv, context, ERROR_CATALOG, 0);
while (n = optget(argv, usage)) switch (n)
{
case 'm':
mode = strperm(arg=opt_info.arg,&opt_info.arg,mode);
if(*opt_info.arg)
error(ERROR_exit(0),"%s: invalid mode",arg);
break;
case ':':
error(2, "%s",opt_info.arg);
break;
case '?':
error(ERROR_usage(2), "%s",opt_info.arg);
break;
}
argv += opt_info.index;
if(error_info.errors || !*argv)
error(ERROR_usage(2),"%s",optusage(NiL));
while(arg = *argv++)
{
if(mkfifo(arg,mode) < 0)
error(ERROR_system(0),"%s:",arg);
}
if(mask)
umask(mask);
return(error_info.errors!=0);
}