how can i input a text from a text file (c) - c

Question

how can i input a text from a text file using fgets while using a 2D array for input?
main(){
char text[1000][1000];
FILE *fptr;
char fname[100];
printf("input file name:");
scanf("%s",fname);
fptr=fopen(fname,"w");
if(fptr==NULL){
printf("Error in opening file");
exit(1);
}
else{
}
}

Answer 1

the following proposed code:
cleanly compiles
performs the desired functionality
properly checks for errors
properly cleans up before exiting
documents which header file exposed which functions and which #defines
And now the proposed code:
#include <stdio.h> // FILE, printf(), scanf(), fprintf()
// fopen(), fclose(), stderr, fflush()
#include <stdlib.h> // exit(), EXIT_FAILURE, realloc()
#include <string.h> // strdup()
#define MAX_FILENAME_LEN 99
#define MAX_LINE_LEN 1000
int main( void )
{
FILE *fptr;
char filename[ MAX_FILENAME_LEN +1 ];
printf("input file name:");
fflush( stdout );
if( scanf( "%99s", filename ) != 1 )
{
fprintf( stderr, "scanf failed to read the file name\n" );
exit( EXIT_FAILURE );
}
// implied else, scanf successful
fptr = fopen( filename, "w" );
if( !fptr )
{
perror( "fopen failed" );
exit( EXIT_FAILURE );
}
// implied else, fopen successful
char **savedText = NULL;
size_t numLines = 0;
char line[ MAX_LINE_LEN ];
while( fgets( line, sizeof(line), fptr ) )
{
char *temp = realloc( savedText, (numLines+1)*sizeof(char*) );
if( !temp )
{
perror( "realloc failed" );
fclose( fptr );
for( size_t i=0; i<numLines; i++ )
{
free( savedText+i );
}
free( savedText );
exit( EXIT_FAILURE );
}
// implied else, realloc successful
*savedText = temp;
savedText[ numLines ] = strdup( line );
if( !savedText+numLines )
{
perror( "strdup failed" );
fclose( fptr );
for( size_t i=0; i<numLines; i++ )
{
free( savedText+i );
}
free( savedText );
exit( EXIT_FAILURE );
}
// implied else, strdup successful
numLines++;
} // end while()
fclose( fptr );
for( size_t i=0; i<numLines; i++ )
{
free( savedText[ i ] );
}
free( savedText );
return 0;
}