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/* Copyright (c) 1996 Regents of the University of California */ |
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#ifndef lint |
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static char SCCSid[] = "$SunId$ LBL"; |
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static const char RCSid[] = "$Id$"; |
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#endif |
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/* |
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* Parallel network process handling routines |
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*/ |
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#include <stdio.h> |
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#include <sys/types.h> |
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#include <signal.h> |
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#include <fcntl.h> |
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#include "selcall.h" |
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#include "netproc.h" |
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#include "paths.h" |
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#include "vfork.h" |
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/* Remote shell location */ |
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#ifdef sgi |
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#define RSH "/usr/bsd/rsh" |
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#endif |
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#ifdef _AUX_SOURCE |
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#define RSH "/usr/bin/remsh" |
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#endif |
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#ifndef RSH |
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#define RSH "/usr/ucb/rsh" |
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#endif |
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/* select call compatibility stuff */ |
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#ifndef FD_SETSIZE |
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#include <sys/param.h> |
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#define FD_SETSIZE NOFILE /* maximum # select file descriptors */ |
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#endif |
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#ifndef FD_SET |
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#ifndef NFDBITS |
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#define NFDBITS (8*sizeof(int)) /* number of bits per fd_mask */ |
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#endif |
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#define FD_SET(n, p) ((p)->fds_bits[(n)/NFDBITS] |= (1 << ((n) % NFDBITS))) |
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#define FD_CLR(n, p) ((p)->fds_bits[(n)/NFDBITS] &= ~(1 << ((n) % NFDBITS))) |
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#define FD_ISSET(n, p) ((p)->fds_bits[(n)/NFDBITS] & (1 << ((n) % NFDBITS))) |
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#ifndef BSD |
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#define bzero(d,n) (void)memset(d,0,n) |
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#endif |
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#define FD_ZERO(p) bzero((char *)(p), sizeof(*(p))) |
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#endif |
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PSERVER *pslist = NULL; /* global process server list */ |
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static PROC *pindex[FD_SETSIZE]; /* process index table */ |
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static char ourhost[64]; /* this host name */ |
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static char ourdir[128]; /* our working directory */ |
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static char ourdir[MAXPATH]; /* our working directory */ |
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static char ouruser[32]; /* our user name */ |
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static char *ourshell; /* our user's shell */ |
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static fd_set errdesc; /* error file descriptors */ |
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static int maxfd; /* maximum assigned descriptor */ |
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extern char *malloc(), *realloc(); |
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extern char *remsh; /* externally defined remote shell program */ |
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extern char *getenv(); |
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if (ps == NULL) |
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return(NULL); |
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if (!ourhost[0]) { /* initialize */ |
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char dirtmp[128]; |
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char dirtmp[MAXPATH]; |
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register char *cp; |
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register int len; |
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strcpy(ourhost, myhostname()); |
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getcwd(dirtmp, sizeof(dirtmp)); |
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getwd(dirtmp); |
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if ((cp = getenv("HOME")) != NULL) { |
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if (!strcmp(cp, dirtmp)) |
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ourdir[0] = '\0'; |
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/* remove server from list */ |
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psp->next = ps->next; |
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pslist = pstart.next; |
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free((char *)ps); /* free associated memory */ |
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free((void *)ps); /* free associated memory */ |
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} |
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char *command; |
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int (*compf)(); |
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{ |
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char *av[12]; |
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char udirt[MAXPATH]; |
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char *av[16]; |
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int pfd[2], pid; |
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register int i; |
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close(pfd[1]); |
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} |
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if (ps->hostname[0]) { /* rsh command */ |
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av[i=0] = RSH; |
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av[i=0] = remsh; |
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av[++i] = ps->hostname; |
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av[++i] = "-n"; /* no stdin */ |
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if (ps->username[0]) { |
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av[++i] = "-n"; /* no stdin */ |
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if (ps->username[0]) { /* different user */ |
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av[++i] = "-l"; |
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av[++i] = ps->username; |
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av[++i] = "cd"; |
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udirt[0] = '~'; |
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strcpy(udirt+1, ouruser); |
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av[++i] = udirt; |
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av[++i] = ";"; |
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} |
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if (ps->directory[0]) { |
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if (ps->directory[0]) { /* change directory */ |
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av[++i] = "cd"; |
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av[++i] = ps->directory; |
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av[++i] = ";"; |
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close(pp->efd); /* close error stream */ |
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pindex[pp->efd] = NULL; |
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FD_CLR(pp->efd, &errdesc); |
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free((char *)pp->errs); |
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free((void *)pp->errs); |
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pp->com = NULL; /* clear settings */ |
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pp->pid = -1; |
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pp->efd = -1; |