[CubeBite] File_Create_Write 함수

#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <fcntl.h>
#include <string.h>
#include <unistd.h>
 
int file_create_write(char* location_filename, char* write_data, int size)
{
    int file_descriptor;
    char add_write[1024]={0};
    int ret;
    int iCnt;
    printf("\n");
    printf("[D] loca: %s\n", location_filename);
    printf("[D] data: %s\n", write_data);
    printf("[D] File Open start...\n");
 
#if 0
    /* replace a data to file  */
    if( (file_descriptor = open(location_filename,O_CREAT|O_TRUNC|O_WRONLY,0644)) > 0 )
    {
        write(file_descriptor, write_data, size);
        close(file_descriptor);
        printf("[D] File close\n");
    }
    else
    {
        printf("File Open Error...\n");
        return -1;
    }
#endif
 
    /* attach a data to file  */
    if( (file_descriptor = open(location_filename,O_CREAT|O_WRONLY|O_APPEND,0644)) > 0 )
    {
        printf("Open file_descriptor=%d\n",file_descriptor);
        if( write(file_descriptor, write_data, size) == -1 )
        {
            printf("File write Error...\n");
            return -3;
        }
    
#if 0
        printf("[ADD] Input data to file (nothing: Press Enter...) : ");
        fgets(add_write, sizeof(add_write), stdin);
        //scanf("%s",add_write);
        
        for(iCnt=0; iCnt<strlen(add_write); iCnt++)
        {
            printf("[D] add_write[%d]=%c[0x%02x]\n",iCnt,add_write[iCnt],add_write[iCnt]);
        }
        
        if( *(add_write) == '\n' )
        {
            break;
        }
        
        else
        {
            write(file_descriptor, add_write, sizeof(add_write)-1);
            for(iCnt=0; iCnt<sizeof(add_write); iCnt++)
            {
                add_write[iCnt]=0;
                printf(".");
            }
            
        }
#endif
 
    
        close(file_descriptor);
        printf("[D] File close\n");
    }
    
    else
    {
        printf("File Open Error...\n");
        return -2;
    }
 
    return 0;
}
 
int main(int argc, char* argv[])
{
    int ret,iCnt = 0;
    char file_location_name [1024] = {0};
    char file_write [1024] = {0};
 
    if( argc <= 1 || argc > 2 )
    {
        printf("Argument Error...\n");
        printf("Using manual: ./(execution_file_name) (file_location)\n");
        return -1;
    }
 
    while(1)
    {
        iCnt = 0;
        printf("\n Input data to file : ");
        fgets(file_write, sizeof(file_write), stdin);
        //for(iCnt=0; iCnt<strlen(file_write); iCnt++)
 
        while( *(file_write+iCnt) != '\n' )
        {
            printf("[D] file_write[%d]=%c[0x%02x]\n",iCnt,file_write[iCnt],file_write[iCnt]);
            iCnt++;
        }
 
        if( file_write[0] == '\n' )
        {
            break;
        }
 
        /* file_write end is '\n' */
        ret = file_create_write( argv[1], file_write, strlen(file_write) );
        
        
        for(iCnt=0; iCnt<strlen(file_write); iCnt++)
        {
            file_write[iCnt]=0;
        }
    }
 
    /* remove '\n' */
    //ret = file_create_write( file_location_name, file_write, strlen(file_write)-1); 
    printf("[D] File open return=%d\n", ret);
 
    return 0;
    
}