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Title File Splitting & Merging Utility
Author Deepak Gupta
Author Email dgupta_2000 [at] rediffmail.com
Description Its a File Splitting & Merging Utility in 'C'.

Category C » File Operations
Hits 15034
Code Select and Copy the Code
Code: #include<stdio.h> #include<conio.h> #include<sys/stat.h> // Funtion prototype to split in Equal size void split_equal(char *fname,long int pieces); // Funtion prototype to split in size defined by the user void split_size(char *fname, long int sp_size); // Funtion prototype to merge the splitted file void merge(char *o_fname, long int no_file); /*Main Starts*/ void main() { int ch; long int size,pieces,sp_size,no_file; char *fname,*o_fname; FILE *fp; struct stat statbuff; // stat structure to get file size clrscr(); printf(" SPLITTING PROCESS......"); printf(" Enter the path of the file to be splitted : "); fflush(stdin); gets(fname); // Name of the File to be splitted fp=fopen(fname,"rb+"); if(fp==NULL) { printf(" "); fprintf(stderr,"Cannot Open the File."); getch(); exit(0); } stat(fname,&statbuff); size=statbuff.st_size; // Get the size of the file to splitted fclose(fp); printf(" The Size of the File is %ld bytes.",size); printf(" SELECT THE WAY IN WHICH TO SPLIT THE FILE : "); printf(" 1.) In Equal Numbers."); printf(" 2.) User Defined Sizes."); printf(" Enter your choice : "); scanf("%d",&ch); // Start case switch(ch) { case 1: printf(" Enter the Number of Pieces : "); scanf("%ld",&pieces); // Define the number of pieces in which file will be splitted if(pieces>size) { printf(" Invalid Number of pieces."); getch(); exit(0); } split_equal(fname,pieces); // Function call to split printf(" Files Successfully Splitted."); getch(); break; case 2: printf(" Enter the Size in which to split the files : "); scanf("%ld",&sp_size); // Define the size in which file will be splitted if(sp_size>size) { printf(" Invalid size of the pieces."); getch(); exit(0); } split_size(fname,sp_size); // Function call to split printf(" Files Successfully Splitted."); getch(); break; default: printf(" Invalid Choice."); getch(); exit(0); } // End Case printf(" A .bat file has been created, copy all the pieces "); printf(" and the .bat file to the desired destination and run "); printf(" the .bat file to get the merged file."); getch(); //The Merging Process /* printf(" Do You Want to Merge the Splitted Files (Y/N): "); fflush(stdin); ch=getchar(); if(toupper(ch)=='Y') { // Start The Merging Process clrscr(); printf(" MERGING PROCESS......."); printf(" Enter the Path and Name of the Merged Output File : "); fflush(stdin); gets(o_fname); // Get the name of Output file printf(" Enter the Number of Files which are to be Merged : "); scanf("%ld",&no_file); // Get the Number of splitted files to be merged merge(o_fname,no_file); // Function call for Merging the Files printf(" The Splitted Files have been successfully Merged."); getch(); } */ } // End Main // Start of function definition split_equal void split_equal(char *fname,long int pieces) { FILE *fp,*n_fp,*fp_bat; char ch,*p,q[50],t[50],z[50]; int i,j,k,x; char *n_fname,base[5]; long int size,f_size,offset; struct stat statbuff; stat(fname,&statbuff); size=statbuff.st_size; offset=size%pieces; f_size=(size-offset)/pieces; p=fname; printf(" The first %ld files will be of size %ld bytes each.",pieces-1,f_size); printf(" The %ldth file will be of size %ld bytes. ",pieces,f_size+offset); fp=fopen(fname,"rb+"); if(fp==NULL) { printf(" "); fprintf(stderr,"Cannot Open the File."); getch(); exit(0); } strrev(p); for(j=0;p[j]!='\';j++) //Extracting the Name of file in variable q { q[j]=p[j]; } q[j]='

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