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#include <emf2svg.h>
#include <sys/stat.h>
#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/mman.h>
/* to compile: gcc -Wall -std=c99 -lm -lemf2svg ./check_emfp.c -o test */
int main(int argc, char *argv[]){
/* This script takes the emf file as first argument
* and returns:
* 3 -> error opening the file
* 2 -> file is not a well formed EMF
* 1 -> file only contains EMF records
* 0 -> file also contains EMF+ records
*/
// quick and dirty way to load the file in memory
if (argc != 2){fprintf(stderr, "file missing\n"); exit(3);}
struct stat s; const char * file_name = argv[1];
int fd = open(file_name, O_RDONLY);
if (fd < 0){fprintf(stderr, "file access failed\n"); exit(3);}
fstat (fd, &s);
/* return code for check and conversion */
int ret;
/* emf content size */
size_t emf_size = s.st_size;
/* emf content */
char * emf_content = mmap(0, emf_size, PROT_READ, MAP_PRIVATE, fd, 0);
/************************** check if emf+ records in emf file **********/
bool emfplus;
ret = emf2svg_is_emfplus(emf_content, emf_size, &emfplus);
// close file and free content
close(fd);
munmap(emf_content, emf_size);
if(!ret){
fprintf(stdout,"%s is corrupted\n", file_name);
exit(2);
}
if(emfplus){
fprintf(stdout,"%s contains EMF+ records\n", file_name);
exit(0);
} else {
fprintf(stdout,"%s only contains EMF records\n", file_name);
exit(1);
}
}