70 lines
1.4 KiB
C
70 lines
1.4 KiB
C
/*
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* (c) 2005 Nico Schottelius (nico-linux at schottelius.org)
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* change status of a service
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* part of cinit
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*/
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#include <string.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <limits.h>
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#include "cinit.h"
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/* client:
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* svc = service name
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* status = status
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* pid = pid
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* sock2 = sock
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* action = ACT_WRITE
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* return: error code
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*
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* server:
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* svc = buffer
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* status = where to save status
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* svc = bufferTH_MAX
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* pid = where to save pid
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* sock2 = nsock
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* action = ACT_READ
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* return: read service lenght
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*/
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int do_change_status(char *svc, char *status, pid_t *pid, int sock2, int action)
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{
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int tmp;
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ssize_t (*fpoint)(int,void* ,size_t);
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if(action == ACT_SERV) {
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fpoint = read;
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} else {
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fpoint = ( ssize_t (*)(int, void*, size_t) ) write;
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tmp = strlen(svc);
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}
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if(fpoint(sock2,&tmp,sizeof(tmp)) == -1) { /* length */
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perror("i/o: length");
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return 0;
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}
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if(tmp > PATH_MAX) {
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return 0;
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}
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if(fpoint(sock2,svc,tmp) == -1) { /* write service name */
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perror("i/o: service name");
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return 0;
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}
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if(fpoint(sock2,status,sizeof(*status)) == -1) { /* status */
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perror("i/o: status");
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return 0;
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}
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if(fpoint(sock2,pid,sizeof(*pid)) == -1) { /* PID */
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perror("i/o: PID");
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return 0;
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}
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return tmp;
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}
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