www.pudn.com > PK1111.rar > file.c

#include  
#include  
#include  
 
#define FileOpenFail -1401 
#define EnvFileFail  -1402 
 
GetEnv(char *filename,char *envname,char *envval) 
{ 
  FILE *fp; 
  char fileline[200]; 
  char fileenv[100]; 
  char fileenvval[100]; 
 
  fp=fopen(filename,"r"); 
  if (fp==NULL) 
  { ShowMsg("FILE %s CAN NOT OPEN \n",filename); 
    return FileOpenFail; 
  } 
  while(!feof(fp)) 
  { 
    if (fgets(fileline,200,fp)==NULL) break; 
    if (strlen(fileline)!=0) fileline[strlen(fileline)-1]='\0'; 
 
    memset(fileenv,'\0',sizeof(fileenv)); 
    memset(fileenvval,'\0',sizeof(fileenvval)); 
 
    strdepart(fileline,'=',fileenv,fileenvval); 
 
    if (strcmp(fileenv,envname)==0)  
    {strcpy(envval,fileenvval);   
     fclose(fp); 
     return(0); 
     } 
  } 
  return(0); 
} 
 
strdepart(char *a,char d,char *a1,char *a2) 
{ 
   int i=0,j=0; 
   if (a[i]=='\0') return(0); 
   while(1) 
  {  
   if (a[i]=='\0')  break; 
   if (a[i]==d)     break; 
   a1[i]=a[i]; 
   i++; 
   } 
  if (a[i]=='\0')  
  { ShowMsg("EnvFile Line: %s Not Correct!\n",a); 
    return(EnvFileFail);} 
  strcpy(a2,a+i+1);  
}   
 
long GetFileSize(char *Filename) 
{ 
    FILE *fp; 
    
	long lSize; 
    fp=fopen(Filename,"r"); 
    if (fp==NULL) return (-1); 
 
	fseek(fp,0,SEEK_END); 
/*	fgetpos(fp,&lSize); */ 
    lSize=ftell(fp); 
	fseek(fp,0,SEEK_SET); 
 
    fclose(fp); 
	return lSize; 
} 
 
/* 
char MsgLog[30]="./1.log"; 
main() 
{ long a; 
  a=GetFileSize("./tmp51");  
  printf("filesize=%d\n",a); 
}*/ 
 
/* 
main() 
{  char ip[100]; 
   GetEnv("1.cfg","nj400_ipaddr",ip); 
   printf("get ip= %s len=%d\n",ip,strlen(ip)); 
   LookChar(ip,strlen(ip)); 
    
}*/