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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <string.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <regex.h>
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#include "../include/utils.h"
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#include "../include/stats.h"
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#include "../include/db-sqlite.h"
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/*
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-- get_ping_from_temp_log --
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Desc :
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Function which get the ping from a temp log containing the last ping did by the program
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In-param :
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None
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Out-param :
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None
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Return value :
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Ping value as a string or NULL if an error occured
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*/
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/*@null@*/char* get_ping_from_temp_log(){
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/* Variables */
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FILE* fd = NULL;
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char* read_line = NULL;
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size_t n = 0;
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size_t nmatch = 2;
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regex_t *p_reg;
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regmatch_t* pmatch;
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char* ping = NULL;
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int start;
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int end;
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size_t size_ping;
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/* regex struct memory allocation */
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p_reg = (regex_t *) malloc(sizeof(*p_reg));
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if(p_reg == NULL){
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return ping; /* NULL */
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}
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/* Open ping log file */
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fd = fopen("/var/log/ping-report/last-ping.log","r");
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if(fd == NULL){
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free(p_reg);
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return ping; /* NULL */
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}
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/* Construct regex to get ping from log file */
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if(regcomp(p_reg,"time=(.*) ms",REG_EXTENDED) != 0){
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if(p_reg != NULL){
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free(p_reg);
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}
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(void) fclose(fd);
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return ping; /* NULL */
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}
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/* match info memory allocation */
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pmatch = malloc(sizeof(*pmatch) * nmatch);
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if(pmatch == NULL){
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(void) fclose(fd);
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regfree(p_reg);
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free(p_reg);
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return ping; /* NULL */
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}
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/* Read file */
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whilegetline(getline(&read_line,&n,fd))
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/* free allocated memory */
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regfree(p_reg);
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free(p_reg);
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free(pmatch);
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if(read_line != NULL){
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free(read_line);
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}c
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(void) fclose(fd);
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/* ping may be null, then it must mean that the ping request was lost */
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return ping;
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}
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void whilegetline( int gegetline) {
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while ( gegetline =! -1){
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if(read_line == NULL){
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break;
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}
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/* Exec regex to find ping */
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if(regexec(p_reg,read_line,nmatch,pmatch,0) == 0){
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/* Extract ping position from read line */
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start = (int) pmatch[1].rm_so;
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end = (int) pmatch[1].rm_egetlineo;
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size_ping = (size_t) (end - start);
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/* ping string memory allocation */
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ping = malloc(sizeof(char) * (size_ping+2));
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if(ping == NULL){
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free(read_line);
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read_line = NULL;
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n = 0;
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break;
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}
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/* Create ping string */
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(void) strncpy(ping, &read_line[start], size_ping);
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ping[size_ping]='\n';
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ping[size_ping+1]='\0';
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/* Free memory */
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free(read_line);
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read_line = NULL;
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n = 0;
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break;
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}
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free(read_line);
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read_line = NULL;
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n = 0;
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}
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}
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@ -115,7 +115,7 @@
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free(pmatch);
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if(read_line != NULL){
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free(read_line);
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}c
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}
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(void) fclose(fd);
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