Rev 8849 | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
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| 10 | reyssat | 1 | /* Copyright (C) 1998-2003 XIAO, Gang of Universite de Nice - Sophia Antipolis |
| 2 | * |
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| 3 | * This program is free software; you can redistribute it and/or modify |
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| 4 | * it under the terms of the GNU General Public License as published by |
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| 5 | * the Free Software Foundation; either version 2 of the License, or |
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| 6 | * (at your option) any later version. |
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| 7 | * |
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| 8 | * This program is distributed in the hope that it will be useful, |
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| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 11 | * GNU General Public License for more details. |
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| 12 | * |
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| 13 | * You should have received a copy of the GNU General Public License |
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| 14 | * along with this program; if not, write to the Free Software |
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| 15 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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| 16 | */ |
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| 17 | |||
| 18 | /* WIMS log daemon, socket routines */ |
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| 8185 | bpr | 19 | #include "wimslogd.h" |
| 10 | reyssat | 20 | |
| 21 | void errorquit(char *p) |
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| 22 | { |
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| 8195 | bpr | 23 | wimslogd_error(p); exit(1); |
| 10 | reyssat | 24 | } |
| 25 | |||
| 26 | void opensock(void) |
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| 27 | { |
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| 28 | struct stat st; |
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| 29 | struct sockaddr_un sun; |
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| 30 | if(stat(sockfile,&st)==0) unlink(sockfile); |
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| 31 | commsock=socket(PF_UNIX,SOCK_STREAM,0); |
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| 32 | if(commsock<0) errorquit("Unable to open socket."); |
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| 33 | sun.sun_family=PF_UNIX; |
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| 34 | snprintf(sun.sun_path,sizeof(sun.sun_path),"%s",sockfile); |
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| 35 | if(bind(commsock,(struct sockaddr *)&sun, sizeof(sun))==-1) |
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| 36 | errorquit("Unable to bind to socket file."); |
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| 37 | if(listen(commsock,SOCKET_QUEUE)==-1) errorquit("listen() error."); |
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| 38 | } |
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| 39 | |||
| 40 | void output(int fh) |
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| 41 | { |
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| 12472 | bpr | 42 | int l, *ip; |
| 43 | if(answerlen<0) l=strlen(textbuf); else l=answerlen; |
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| 44 | ip=(int *) commbuf; *ip=l; |
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| 45 | (void)write(fh,commbuf,l+sizeof(int)); |
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| 46 | close(fh); |
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| 47 | if(debugging) { |
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| 48 | if(textbuf[0]=='O') debug("%.2s %d bytes.",textbuf,l); |
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| 49 | else debug("%s",textbuf); |
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| 50 | } |
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| 10 | reyssat | 51 | } |
| 52 | |||
| 53 | void sockerror(int type, char *p,...) |
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| 54 | { |
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| 12472 | bpr | 55 | char *estr, buf[MAX_LINELEN+1]; |
| 56 | va_list vp; |
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| 57 | va_start(vp,p); |
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| 58 | vsnprintf(buf,sizeof(buf),p,vp); |
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| 59 | va_end(vp); |
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| 60 | if(errno==0) estr=""; else estr=strerror(errno); |
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| 61 | snprintf(textbuf,BUFFERLEN-16,"ERROR %d\n%s\n%s",type,buf,estr); |
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| 10 | reyssat | 62 | } |
| 63 | |||
| 64 | void sockok(char *p) |
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| 65 | { |
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| 12472 | bpr | 66 | snprintf(textbuf,BUFFERLEN-16,"OK\n%s",p); |
| 10 | reyssat | 67 | } |
| 68 | |||
| 69 | void answer(int fh) |
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| 70 | { |
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| 12472 | bpr | 71 | int t,l, *ip; |
| 10 | reyssat | 72 | |
| 12472 | bpr | 73 | t=read(fh,commbuf,BUFFERLEN-sizeof(int)); if(t<sizeof(int)) { |
| 74 | bad: sockerror(3,"Daemon socket read error."); |
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| 75 | goto end; |
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| 76 | } |
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| 77 | ip=(int *) commbuf; l=*ip; |
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| 78 | if(l<=0 || l>=BUFFERLEN-sizeof(int)) goto bad; |
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| 79 | while(t<l+sizeof(int)) { |
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| 80 | struct timeval tv; |
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| 81 | fd_set rset; |
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| 82 | int t2; |
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| 83 | tv.tv_sec=0; tv.tv_usec=20*1000; |
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| 84 | FD_ZERO(&rset); FD_SET(fh,&rset); |
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| 85 | if(select(fh+1,&rset,NULL,NULL,&tv)<=0) goto bad; |
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| 86 | t2=read(fh,commbuf+t,l+sizeof(int)-t); |
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| 87 | if(t2<=0 || t2>l+sizeof(int)-t) goto bad; |
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| 88 | t+=t2; |
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| 89 | } |
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| 90 | textbuf[l]=0; textptr=textbuf; |
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| 91 | answerlen=-1; |
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| 92 | if(debugging) debug("> %s",textbuf); |
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| 93 | if(options()>=0) cmd(); |
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| 94 | end: (void)chdir(cwd); cwdtype=dir_home; output(fh); |
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| 10 | reyssat | 95 | } |