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#define _POSIX_C_SOURCE 200908
#include <stdio.h>
#include <sys/stat.h>
#include <openssl/md5.h>
#include <string.h>
//#include <sys/types.h>
#include <sys/xattr.h>
#define BYTES_IN_SHORT 2
#define CACHE_DIR "/var/cache/shorten"
int main(int argc,char *argv[]) {
int i;
if(argc < 2) return 1;
unsigned char *p=MD5((unsigned char *)argv[1],strlen(argv[1]),NULL);
char filepath[4096];//too long, oh well
char out[256];
char tmp[3];
strcpy(out,"");
for(i=0;i<BYTES_IN_SHORT;i++) {
snprintf(tmp,sizeof(tmp),"%02x",p[i]);
strcat(out,tmp);
}
printf("%s\n",out);
snprintf(filepath,sizeof(filepath)-1,"%s/%s",CACHE_DIR,out);
FILE *fp;
if((fp=fopen(filepath,"w")) == NULL) {
fprintf(stderr,"shorten: failed to write a file: %s\n",filepath);
return 1;
}
fprintf(fp,"%s\n",argv[1]);
//disabled for now because tmpfs can't do extended attributes
//fprintf(stderr,"fsetxattr return: %d\n",fsetxattr(fileno(fp),"user.mime-type","text/uri-list",strlen("text/uri-list"),0));
//perror("fsetxattr");
fchmod(fileno(fp),0664);
fclose(fp);
}
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