101 lines
2 KiB
C
101 lines
2 KiB
C
|
/*
|
||
|
|
* (c) 2005 Nico Schottelius (nico-linux at schottelius.org)
|
||
|
|
* run_svc
|
||
|
|
* part of cinit
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <errno.h>
|
||
|
|
#include <fcntl.h>
|
||
|
|
#include <limits.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <string.h>
|
||
|
|
#include <sys/stat.h>
|
||
|
|
#include <sys/types.h>
|
||
|
|
#include <sys/wait.h>
|
||
|
|
|
||
|
|
#include <unistd.h>
|
||
|
|
#include <stdio.h>
|
||
|
|
|
||
|
|
|
||
|
|
#include "cinit.h"
|
||
|
|
|
||
|
|
/***********************************************************************
|
||
|
|
* read_file: return file content, each line a char*
|
||
|
|
*/
|
||
|
|
|
||
|
|
char **read_file(char *file)
|
||
|
|
{
|
||
|
|
int tmp;
|
||
|
|
int fd, argc;
|
||
|
|
|
||
|
|
char buf[BUFSIZE];
|
||
|
|
char *p, *sbuf = NULL;
|
||
|
|
char **nargv = NULL;
|
||
|
|
|
||
|
|
struct stat stbuf;
|
||
|
|
|
||
|
|
D_PRINTF("Lese Datei");
|
||
|
|
D_PRINTF(file);
|
||
|
|
|
||
|
|
if( !stat(file,&stbuf) ) {
|
||
|
|
fd = open(file,O_RDONLY);
|
||
|
|
|
||
|
|
if(fd == -1) {
|
||
|
|
LOG("params exists, but open params failed");
|
||
|
|
return NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
D_PRINTF("open ist ok");
|
||
|
|
|
||
|
|
argc = 0;
|
||
|
|
|
||
|
|
/* most likely one round */
|
||
|
|
while ( (tmp = read(fd,buf,BUFSIZE) ) != 0 ) {
|
||
|
|
if(tmp == -1) {
|
||
|
|
perror("read");
|
||
|
|
return NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
sbuf = realloc(sbuf,argc + tmp + 1);
|
||
|
|
strncpy(&sbuf[argc],buf,tmp);
|
||
|
|
argc += tmp;
|
||
|
|
}
|
||
|
|
close(fd);
|
||
|
|
}
|
||
|
|
|
||
|
|
sbuf[argc] = '\0';
|
||
|
|
|
||
|
|
/************** build string **************/
|
||
|
|
/* The idea is to reuse the allocated memory. We'll simply
|
||
|
|
* replace the \n with \0 and set a char* to it.
|
||
|
|
* We'll lose the last byte (the initial \0), but we
|
||
|
|
* don't care, as we die some seconds later with execv() */
|
||
|
|
|
||
|
|
argc = 0;
|
||
|
|
|
||
|
|
while( (p = strchr(sbuf,'\n')) ) {
|
||
|
|
nargv = realloc(nargv, sizeof(char *) * (argc + 1));
|
||
|
|
|
||
|
|
if(nargv == NULL) {
|
||
|
|
LOG("realloc failed");
|
||
|
|
return NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
nargv[argc] = sbuf;
|
||
|
|
*p = '\0';
|
||
|
|
sbuf = p+1; /* is ok, as behind the last \n is a \0 */
|
||
|
|
argc++;
|
||
|
|
}
|
||
|
|
|
||
|
|
/************ close argv list **************/
|
||
|
|
nargv = realloc(nargv, sizeof(char *) * (argc + 1));
|
||
|
|
if(nargv == NULL) {
|
||
|
|
LOG("realloc failed");
|
||
|
|
return NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
nargv[argc] = NULL; /* terminate argv list */
|
||
|
|
|
||
|
|
return nargv;
|
||
|
|
}
|