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main.c
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main.c
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#include <unistd.h> //for getopt, optarg
#include <stdio.h>
#include <string.h>//remove warning strcpy
#include <signal.h>//for signals
#include <stdlib.h>
#include <pthread.h> //for pthread functions
#include <dirent.h> //for traversing directories
#include <sys/stat.h> // for lstat, stat, open
#include <fcntl.h> //for O_RDONLY
#include <time.h>
#define ERR(source) (perror(source),\
fprintf(stderr,"%s:%d\n",__FILE__,__LINE__),\
exit(EXIT_FAILURE))
#define PATH_L 90
#define OPTION_L 20
#define INDEX_SIZE 50
#define TYPE_L 5
//#define DEBUG
typedef struct index_t
{
char *file_name; //file name
char *full_path; //a full (absolute) path to a file
off_t size; //size
uid_t st_uid; //owner's uid
char* type;
} index_t;
typedef struct data_t
{
index_t*index;
int places_taken;
int prev_size;
char * path_d;
char *path_f;
int t;
int period_re_index;
int in_progress;
int can_be_cancelled;
sigset_t mask;
pthread_mutex_t *mxindex;
pthread_mutex_t mxother;
struct data_t * old_data;
} data_t;
void read_arguments(int argc, char**argv, char * path_d, char *path_f, int *t,int* period_re_index);
void usage();
void get_mole_dir(char *path_d);
void get_mole_index_path(char *path_f);
void option_check(char*arg);
void argument_check(char * path_d, char *path_f, int *t,int* period_re_index);
void* indexing(void *arg);
void traverse_files(void *arg,char *path);
void remove_slash(char*path);
int identify_type(void *arg, char*path);
void save_to_file(void *arg);
int read_from_file(void *arg);
void count_file_type(void *arg);
void get_option_val(char*option,char*option_value);
void get_option(void *arg,pthread_t thread_index);
void sig_handler(int sig);
void sethandler( void (*f)(int), int sigNo);
void print_owner(void*arg,int val);
void print_largerthan(void*arg,int val);
void print_namepart(void *arg, char* option_value);
int is_in_file(void*arg,char*name,char *path);
int is_in_index(void*arg,char*name,char*path);
int check_length(char *string);
void create_data(data_t *data);
void copy_data(data_t *data, data_t *old_data);
void free_data(data_t *data);
void reset_index(data_t* data);
void unlock_all(data_t *data);
int main(int argc, char**argv)
{
pthread_t thread_index;
data_t *data=malloc(sizeof(data_t));
create_data(data);
data->old_data=malloc(sizeof(data_t));
create_data(data->old_data);
read_arguments(argc,argv,data->path_d,data->path_f,&data->t,&data->period_re_index);
#ifdef DEBUG
argument_check(data->path_d,data->path_f,&data->t,&data->period_re_index);
#endif
// pthread_attr_t attribute;
// if(pthread_attr_init(&attribute))
// ERR("Couldn't initialise attribute");
// if(pthread_attr_setdetachstate(&attribute,PTHREAD_CREATE_DETACHED))
// ERR("Couldn't set attribute to detached");
sigset_t mask, oldmask;
sigemptyset(&mask);
sigaddset(&mask, SIGUSR2);
if(pthread_sigmask(SIG_BLOCK, &mask, &oldmask))
ERR("SIGMASk");
sethandler(sig_handler,SIGUSR1);
data->mask=mask;
if(pthread_create(&thread_index,NULL,indexing,data))
ERR("Couldn't create indexing thread");
//pthread_detach(thread_index);
// if(pthread_cancel(thread_index))
// ERR("Couldn't cancel indexing thread");
get_option(data,thread_index);
if(pthread_join(thread_index,NULL))
ERR("Couldn't join thread");
sigprocmask(SIG_UNBLOCK, &mask, NULL);
//pthread_attr_destroy(&attribute);
free_data(data);
free_data(data->old_data);
free(data->old_data);
free(data);
//pthread_exit(0);
return 0;
}
void read_arguments(int argc, char**argv, char* path_d, char *path_f, int *t, int* period_re_index)
{
int was_f_present=0;
int was_d_present=0;
int opt;
while ((opt = getopt(argc, argv, ":d:f:t:")) != -1)
{
switch (opt)
{
case 'd':
option_check(optarg);
strcpy(path_d,optarg);
remove_slash(path_d);
was_d_present=1;
break;
case 'f':
option_check(optarg);
strcpy(path_f,optarg);
was_f_present=1;
break;
case 't':
option_check(optarg);
*period_re_index=1;
*t = atoi(optarg);
if(*t<30||*t>7200)
ERR("Wrong range of t");
break;
default:
usage();
ERR("Wrong arguments");
}
}
if(!was_d_present)
get_mole_dir(path_d);
if(!was_f_present)
get_mole_index_path(path_f);
}
void get_mole_dir(char *path_d)
{
setenv("MOLE_DIR","MOLE_DIR",1);
char *mole_dir=malloc(PATH_L*sizeof(char));
if(mole_dir==NULL)
ERR("mole_dir malloc");
if(snprintf(mole_dir, PATH_L, "%s", getenv("MOLE_DIR")) >= PATH_L)
{
ERR("Size of buffer was too small");
}
mole_dir =getenv("MOLE_DIR");
if(mole_dir==NULL)
{
ERR("Couldn't retrieve value from MOLE_DIR");
}
else
strcpy(path_d,mole_dir);
//free(mole_dir);
}
void get_mole_index_path(char *path_f)
{
setenv("MOLE_INDEX_PATH","MOLE_INDEX_PATH",1);
char *mole_index_path=malloc(PATH_L*sizeof(char));
if(mole_index_path==NULL)
ERR("mole_index_path malloc");
if(snprintf(mole_index_path, PATH_L, "%s", getenv("MOLE_INDEX_PATH")) >= PATH_L)
{
ERR("Size of buffer was too small");
}
mole_index_path=getenv("MOLE_INDEX_PATH");
if(mole_index_path==NULL)
{
FILE *fp;
mole_index_path=calloc(PATH_L,sizeof(char));
fp=fopen(".mole-index","r");
if(fp==NULL)
ERR("Couldnt open the file .mole-index");
fgets(mole_index_path,PATH_L,fp);
fclose(fp);
}
strcpy(path_f,mole_index_path);
// free(mole_index_path);
}
void usage()
{
fprintf(stderr, "Usage: [-d path] [-f path] [-t n]\nn is from range [30,7200]");
}
void option_check(char*arg)
{
if(0==strcmp(arg," -f")||0==strcmp(arg," -t")||0==strcmp(arg," -d")||
0==strcmp(arg,"-f")||0==strcmp(arg,"-t")||0==strcmp(arg,"-d"))
{
usage();
ERR("Empty argument");
}
}
void argument_check(char * path_d, char *path_f, int *t,int* period_re_index)
{
printf("------LOADED VALUES-------\n");
if(*period_re_index)
{
printf("periodic re-indexing enabled value:%d\n",*t);
}
else
{
printf("periodic re-indexing disabled\n");
}
printf("path_d:%s\n",path_d);
printf("path_f:%s\n",path_f);
printf("--------------------------\n");
}
void* indexing(void* arg)
{
//pthread_detach(pthread_self());
data_t *data=arg;
int signo=0;
struct stat st;
struct timespec tt_new;
pthread_mutex_lock(&data->mxother);
struct timespec currtime;
clock_gettime(CLOCK_REALTIME, &currtime);
if(stat(data->path_f,&st)==0)
{
tt_new.tv_sec=data->t-(currtime.tv_sec-st.st_ctim.tv_sec);
//printf("%d\n", currtime.tv_sec-st.st_ctim.tv_sec);
}
else{
tt_new.tv_sec=data->t;}
tt_new.tv_nsec=0;
if(tt_new.tv_sec<0)
tt_new.tv_sec=0;
pthread_mutex_unlock(&data->mxother);
if(!read_from_file(arg))
{
pthread_mutex_lock(&data->mxother);
data->in_progress=1;
pthread_mutex_unlock(&data->mxother);
data->places_taken=0;
//reset_index(data);
unlock_all(data);
traverse_files(arg,data->path_d);
save_to_file(arg);
copy_data(data,data->old_data);
printf("Finished indexing...\n");
pthread_mutex_lock(&data->mxother);
data->in_progress=0;
pthread_mutex_unlock(&data->mxother);
}
while(1)
{
pthread_mutex_lock(&data->mxother);
if(data->period_re_index)
{
nanosleep(&tt_new,NULL);
tt_new.tv_sec=data->t;
data->in_progress=1;
pthread_mutex_unlock(&data->mxother);
data->places_taken=0;
//reset_index(data);
unlock_all(data);
traverse_files(arg,data->path_d);
save_to_file(arg);
copy_data(data,data->old_data);
printf("Finished indexing...\n");
pthread_mutex_lock(&data->mxother);
data->in_progress=0;
pthread_mutex_unlock(&data->mxother);
}
else
{
sigwait(&data->mask,&signo);
if(signo==SIGUSR2)
{
data->in_progress=1;
pthread_mutex_unlock(&data->mxother);
data->places_taken=0;
//reset_index(data);
unlock_all(data);
traverse_files(arg,data->path_d);
save_to_file(arg);
copy_data(data,data->old_data);
printf("Finished indexing...\n");
pthread_mutex_lock(&data->mxother);
data->in_progress=0;
pthread_mutex_unlock(&data->mxother);
}
}
}
return NULL;
}
void traverse_files(void *arg,char *given_path)
{
char *path=calloc(2*PATH_L,sizeof(char));
struct stat sb;
if(NULL==path)
ERR("Path calloc");
data_t *data=arg;
DIR *directory;
struct dirent *dir_entry;
directory=opendir(given_path);
if(NULL==directory)
{
free(path);
return;
}
while((dir_entry=readdir(directory))!=NULL)
{
if(strcmp(dir_entry->d_name,".")!=0&&strcmp(dir_entry->d_name,"..")!=0)
{
strcpy(path,given_path);
strcat(path,"/");
strcat(path,dir_entry->d_name);
strcat(path,"\0");
if(check_length(path))
{
printf("Absolute path: %s of file was too long (longer than %d)\n",path,PATH_L);
continue;
}
lstat(path,&sb);
//if(!is_in_index(arg,dir_entry->d_name,path))
//{
if(dir_entry->d_type==DT_DIR)
{
pthread_mutex_lock(&data->mxindex[data->places_taken]);
strcpy(data->index[data->places_taken].type,"DIR\0");
pthread_mutex_unlock(&data->mxindex[data->places_taken]);
}
if(dir_entry->d_type==DT_DIR||!identify_type(arg,path))
{
pthread_mutex_lock(&data->mxindex[data->places_taken]);
strcpy(data->index[data->places_taken].file_name,dir_entry->d_name);
strcat(data->index[data->places_taken].file_name,"\0");
strcpy(data->index[data->places_taken].full_path,path);
data->index[data->places_taken].st_uid=sb.st_uid;
data->index[data->places_taken].size=sb.st_size;
pthread_mutex_unlock(&data->mxindex[data->places_taken]);
pthread_mutex_lock(&data->mxother);
data->places_taken++;
pthread_mutex_unlock(&data->mxother);
}
// }
traverse_files(arg,path);
}
}
if(closedir(directory))
ERR("Couldnt close directory");
free(path);
}
void remove_slash(char*path)
{
int prev=0;
for(int i=1; i<PATH_L; i++)
{
if(path[i]=='\0'&&path[prev]=='/')
path[prev]='\0';
prev=i;
}
}
int identify_type(void *arg, char*path)
{
if(arg==NULL)
return 1;
data_t *data=arg;
int file_descr;
char *magic_numbers=malloc(8*sizeof(char));
if(magic_numbers==NULL)
ERR("magic_numbers malloc");
if((file_descr=open(path,O_RDONLY))>=0)
{
pthread_mutex_lock(&data->mxindex[data->places_taken]);
int check=read(file_descr,magic_numbers,8);
if(-1==check)
ERR("Couldn't file signature");
else if(0==check)
{
pthread_mutex_unlock(&data->mxindex[data->places_taken]);
close(file_descr);
free(magic_numbers);
return 1;
}
if(magic_numbers[0]==80&&magic_numbers[1]==75&&((magic_numbers[2]==3&&magic_numbers[3]==4)||(magic_numbers[2]==5&&magic_numbers[3]==6)||(magic_numbers[2]==7&&magic_numbers[3]==8)))
{
strcpy(data->index[data->places_taken].type,"ZIP\0");
close(file_descr);
free(magic_numbers);
pthread_mutex_unlock(&data->mxindex[data->places_taken]);
return 0;
}
else if(magic_numbers[0]==31&&magic_numbers[1]==-117)
{
strcpy(data->index[data->places_taken].type,"GZIP\0");
close(file_descr);
free(magic_numbers);
pthread_mutex_unlock(&data->mxindex[data->places_taken]);
return 0;
}
else if(magic_numbers[0]==-119&&magic_numbers[1]==80&&magic_numbers[2]==78&&magic_numbers[3]==71&&magic_numbers[4]==13&&magic_numbers[5]==10&&magic_numbers[6]==26&&magic_numbers[7]==10)
{
strcpy(data->index[data->places_taken].type,"PNG\0");
close(file_descr);
free(magic_numbers);
pthread_mutex_unlock(&data->mxindex[data->places_taken]);
return 0;
}
else if(magic_numbers[0]==-1&&magic_numbers[1]==-40&&magic_numbers[2]==-1&&magic_numbers[3]==-32)
{
strcpy(data->index[data->places_taken].type,"JPEG\0");
close(file_descr);
free(magic_numbers);
pthread_mutex_unlock(&data->mxindex[data->places_taken]);
return 0;
}
else
{
close(file_descr);
free(magic_numbers);
pthread_mutex_unlock(&data->mxindex[data->places_taken]);
return 1;
}
}
else
{
close(file_descr);
free(magic_numbers);
pthread_mutex_unlock(&data->mxindex[data->places_taken]);
return 1;
}
}
void save_to_file(void *arg)
{
if(arg==NULL)
return;
data_t *data=arg;
data->can_be_cancelled=0;
int file_descriptor;
file_descriptor=open(data->path_f,O_WRONLY|O_TRUNC|O_CREAT,0644);
if(file_descriptor==-1)
ERR("couldn't open the file");
for(int i=0; i<data->places_taken; i++)
{
//pthread_mutex_lock(&data->mxindex[i]);
// if(data->index[i].file_name[0]==0)
// {
//pthread_mutex_unlock(&data->mxindex[i]);
//break;
//}
if(data->index[i].file_name==NULL||data->index[i].full_path==NULL||data->index[i].type==NULL)
continue;
// pthread_mutex_unlock(&data->mxindex[i]);
if(is_in_file(arg,data->index[i].file_name,data->index[i].full_path))
{
pthread_mutex_lock(&data->mxindex[i]);
if(-1==write(file_descriptor,data->index[i].file_name,PATH_L))
ERR("write to index");
if(-1==write(file_descriptor,data->index[i].full_path,PATH_L))
ERR("Write to index");
if(-1==write(file_descriptor,&(data->index[i].size),sizeof(off_t)))
ERR("Write to index");
if(-1==write(file_descriptor,&(data->index[i].st_uid),sizeof(uid_t)))
ERR("Write to index");
if(-1==write(file_descriptor,data->index[i].type,TYPE_L))
ERR("Write to index");
pthread_mutex_unlock(&data->mxindex[i]);
}
//pthread_mutex_unlock(&data->mxindex[i]);
}
close(file_descriptor);
data->can_be_cancelled=1;
}
int read_from_file(void *arg)
{
data_t *data=arg;
int file_descriptor;
file_descriptor=open(data->path_f,O_RDONLY,0);
if(file_descriptor==-1)
return 0;
char * name_path=malloc(PATH_L*sizeof(char));
off_t size;
uid_t uid;
char*type=malloc(TYPE_L);
int result;
int i=0;
while(1)
{
pthread_mutex_lock(&data->mxother);
pthread_mutex_lock(&data->mxindex[data->places_taken]);
if(i>=INDEX_SIZE)
{
ERR("INDEX_SIZE IS TOO SMALL");
break;
}
result=read(file_descriptor,name_path,PATH_L);
if(0==result)
{
pthread_mutex_unlock(&data->mxother);
pthread_mutex_unlock(&data->mxindex[data->places_taken]);
break;
}
else if(-1==result)
ERR("Read index");
strcpy(data->index[data->places_taken].file_name,name_path);
if(-1==read(file_descriptor,name_path,PATH_L))
ERR("Read index");
strcpy(data->index[data->places_taken].full_path,name_path);
if(-1==read(file_descriptor,&size,sizeof(off_t)))
ERR("Read index");
data->index[data->places_taken].size=size;
if(-1==read(file_descriptor,&uid,sizeof(uid_t)))
ERR("Read index");
data->index[data->places_taken].st_uid=uid;
if(-1==read(file_descriptor,type,TYPE_L))
ERR("Read index");
strcpy(data->index[data->places_taken].type,type);
i++;
data->places_taken++;
pthread_mutex_unlock(&data->mxother);
pthread_mutex_unlock(&data->mxindex[data->places_taken]);
}
close(file_descriptor);
free(name_path);
free(type);
return 1;
}
void count_file_type(void *arg)
{
data_t *data=arg;
int jpeg=0;
int dir=0;
int zip=0;
int png=0;
int gzip=0;
for(int i=0; i<data->places_taken; i++)
{
//pthread_mutex_lock(&data->mxindex[i]);
if(data->index[i].file_name[0]==0)
{
//pthread_mutex_unlock(&data->mxindex[i]);
break;
}
if(!strncmp(data->index[i].type,"DIR",3))
{
dir++;
}
else if(!strncmp(data->index[i].type,"PNG",3))
{
png++;
}
else if(!strncmp(data->index[i].type,"ZIP",3))
{
zip++;
}
else if(!strncmp(data->index[i].type,"JPEG",4))
{
jpeg++;
}
else if(!strncmp(data->index[i].type,"GZIP",4))
{
gzip++;
}
//pthread_mutex_unlock(&data->mxindex[i]);
}
printf("DIR: %d\n",dir);
printf("ZIP: %d\n",zip);
printf("GZIP: %d\n",gzip);
printf("PNG: %d\n",png);
printf("JPEG: %d\n",jpeg);
}
void get_option_val(char*option,char*option_value)
{
int space=0;
for(int i=0; i<OPTION_L; i++)
{
if(option[i]==' ')
{
space=i;
break;
}
}
int j=0;
for(int i=space+1; i<OPTION_L; i++)
{
if(option[i]=='\0'||option[i]=='\n')
{
option_value[j]='\0';
break;
}
option_value[j]=option[i];
j++;
}
}
void get_option(void *arg, pthread_t thread_index)
{
data_t*data=arg;
char *option =malloc(OPTION_L);
if(option==NULL)
ERR("Option malloc");
char *option_value=malloc(OPTION_L);
if(option_value==NULL)
ERR("Option_value malloc");
struct timespec tt= {0,5000};
while(1)
{
fgets(option,OPTION_L,stdin);
if(!strncmp(option,"exit\n",5))
{
printf("exiting...\n");
while(data->in_progress==1)
nanosleep(&tt,NULL);
//pthread_detach(thread_index);
if(pthread_cancel(thread_index))
ERR("Couldn't cancel thread");
break;
}
else if(!strncmp(option,"exit!\n",6))
{
printf("Exiting!...\n");
while(data->can_be_cancelled==0)
nanosleep(&tt,NULL);
//pthread_detach(thread_index);
if(pthread_cancel(thread_index))
ERR("Couldn't cancel thread");
break;
}
else if(!strncmp(option,"index\n",6))
{
if(data->in_progress==0)
{
if(data->period_re_index)
pthread_kill(thread_index,SIGUSR1);
else
pthread_kill(thread_index,SIGUSR2);
}
else
{
printf("Indexing is already in progess\n");
}
}
else if(!strncmp(option,"count\n",6))
{
if(data->in_progress==0)
count_file_type(data);
else
count_file_type(data->old_data);
}
else if(!strncmp(option,"largerthan ",11))
{
get_option_val(option,option_value);
int val=atoi(option_value);
if(data->in_progress==0)
print_largerthan(arg,val);
else
print_largerthan(data->old_data,val);
}
else if(!strncmp(option,"namepart ",9))
{
get_option_val(option,option_value);
if(data->in_progress==0)
print_namepart(arg,option_value);
else
print_namepart(data->old_data,option_value);
}
else if(!strncmp(option,"owner ",6))
{
get_option_val(option,option_value);
int val=atoi(option_value);
if(data->in_progress==0)
print_owner(arg,val);
else
print_owner(data->old_data,val);
}
else
{
fprintf(stderr,"Incorrect option!\n");
}
}
free(option);
free(option_value);
}
void sig_handler(int sig)
{
return;
}
void sethandler( void (*f)(int), int sigNo)
{
struct sigaction act;
memset(&act, 0, sizeof(struct sigaction));
act.sa_handler = f;
if (-1==sigaction(sigNo, &act, NULL)) ERR("sigaction");
}
void print_owner(void*arg,int val)
{
data_t *data=arg;
int howmany=0;
for(int i=0; i<data->places_taken; i++)
{
// pthread_mutex_lock(&data->mxindex[i]);
if(data->index[i].st_uid==val)
{
howmany++;
}
// pthread_mutex_unlock(&data->mxindex[i]);
}
if(howmany>=3)
{
FILE *fp;
fp=popen("less","w");
if(fp==NULL)
ERR("popen");
for(int i=0; i<data->places_taken; i++)
{
//pthread_mutex_lock(&data->mxindex[i]);
if(data->index[i].st_uid==val)
{
fprintf(fp,"%s\n",data->index[i].full_path);
fprintf(fp,"%ld\n",data->index[i].size);
fprintf(fp,"%s\n",data->index[i].type);
}
//pthread_mutex_unlock(&data->mxindex[i]);
}
pclose(fp);
}
else
{
printf("-------files with owener uid == %d---------\n",val);
for(int i=0; i<data->places_taken; i++)
{
//pthread_mutex_lock(&data->mxindex[i]);
if(data->index[i].st_uid==val)
{
printf("%s\n",data->index[i].full_path);
printf("%ld\n",data->index[i].size);
printf("%s\n",data->index[i].type);
}
//pthread_mutex_unlock(&data->mxindex[i]);
}
}
}
void print_largerthan(void*arg,int val)
{
data_t *data=arg;
int howmany=0;
for(int i=0; i<data->places_taken; i++)
{
//pthread_mutex_lock(&data->mxindex[i]);
if(data->index[i].size>val)
{
howmany++;
}
//pthread_mutex_unlock(&data->mxindex[i]);
}
if(howmany>=3)
{
FILE *fp;
fp=popen("less","w");
if(fp==NULL)
ERR("popen");
for(int i=0; i<data->places_taken; i++)
{
// pthread_mutex_lock(&data->mxindex[i]);
if(data->index[i].size>val)
{
fprintf(fp,"%s\n",data->index[i].full_path);
fprintf(fp,"%ld\n",data->index[i].size);
fprintf(fp,"%s\n",data->index[i].type);
}
// pthread_mutex_unlock(&data->mxindex[i]);
}
pclose(fp);
}
else
{
printf("-------files with size > %d---------\n",val);
for(int i=0; i<data->places_taken; i++)
{
//pthread_mutex_lock(&data->mxindex[i]);
if(data->index[i].size>val)
{
printf("%s\n",data->index[i].full_path);
printf("%ld\n",data->index[i].size);
printf("%s\n",data->index[i].type);
}
//pthread_mutex_unlock(&data->mxindex[i]);
}
}
}
void print_namepart(void *arg, char* option_value)
{
data_t *data=arg;
int howmany=0;
for(int i=0; i<data->places_taken; i++)
{
//pthread_mutex_lock(&data->mxindex[i]);
if(strstr(data->index[i].file_name,option_value)!=NULL)
{
howmany++;
}
//pthread_mutex_unlock(&data->mxindex[i]);
}
if(howmany>=3)
{
FILE *fp;
fp=popen("less","w");
if(fp==NULL)
ERR("popen");
for(int i=0; i<data->places_taken; i++)
{
//pthread_mutex_lock(&data->mxindex[i]);
if(strstr(data->index[i].file_name,option_value)!=NULL)
{
fprintf(fp,"%s\n",data->index[i].full_path);
fprintf(fp,"%ld\n",data->index[i].size);
fprintf(fp,"%s\n",data->index[i].type);
}
//pthread_mutex_unlock(&data->mxindex[i]);
}
pclose(fp);
}
else
{
for(int i=0; i<data->places_taken; i++)
{
//pthread_mutex_lock(&data->mxindex[i]);
if(strstr(data->index[i].file_name,option_value)!=NULL)
{
printf("%s\n",data->index[i].full_path);
printf("%ld\n",data->index[i].size);
printf("%s\n",data->index[i].type);
}
//pthread_mutex_unlock(&data->mxindex[i]);
}
}
}
int is_in_file(void*arg,char*name,char*path)
{
if(name==NULL||path==NULL||arg==NULL)
return 0;
int index=0;
int index2=0;
for(int i=0; i<PATH_L; i++)
{
if(name[i]=='\0')
{
index=i+1;
break;
}
}
for(int i=0; i<PATH_L; i++)
{
if(path[i]=='\0')
{
index2=i+1;
break;
}
}
data_t *data=arg;
int file_descriptor;
file_descriptor=open(data->path_f,O_RDONLY|O_CREAT,0644);
if(file_descriptor==-1)
ERR("Couldn't open the file");
char * temp=malloc(PATH_L*sizeof(char));
if(temp==NULL)
ERR("temp malloc error");
char * temp2=malloc(PATH_L*sizeof(char));
if(temp2==NULL)
ERR("temp malloc error");
off_t temp3;
uid_t temp4;
char*temp5=malloc(TYPE_L);
if(temp5==NULL)
ERR("temp malloc error");
for(int i=0; i<data->places_taken; i++)
{
if(data->index[i].file_name[0]==0)
{
break;
}
if(-1==read(file_descriptor,temp,PATH_L))
ERR("Read index");
if(-1==read(file_descriptor,temp2,PATH_L))
ERR("Read index");
if(!strncmp(name,temp,index)&&!strncmp(path,temp2,index2))
{
close(file_descriptor);
free(temp);
free(temp2);
free(temp5);
return 0;
}
if(-1==read(file_descriptor,&temp3,sizeof(off_t)))
ERR("Read index");
if(-1==read(file_descriptor,&temp4,sizeof(uid_t)))
ERR("Read index");
if(-1==read(file_descriptor,temp5,TYPE_L))
ERR("Read index");
}
close(file_descriptor);
free(temp);
free(temp2);
free(temp5);
return 1;
}
int is_in_index(void*arg,char*name,char*path)
{
data_t *data=arg;
for(int i=0; i<data->places_taken; i++)
{
//pthread_mutex_lock(&data->mxindex[i]);
if(!strcmp(data->index[i].full_path,path))
{
// pthread_mutex_unlock(&data->mxindex[i]);
return 1;
}