How to parse multiple lines using strtok()

Hi,


Here is the sample C program which parse the lines using strtok() function. strtok() behaves very strange way and we need to take care of that. 


Here is the file i need to parse
========================

[root@localhost PGBAR]# more /tmp/.cred.txt
[PGM]Host:127.0.0.1:Port:5434:User:postgres:Database:pgm:Password:postgres
[MONITOR]Host:127.0.0.1:Port:5434:User:postgres:Database:postgres:Password:postgres
[MONITOR]Host:127.0.0.1:Port:5434:User:postgres:Database:postgres:Password:postgres

Here is the C Program written to parse the above lines and need to give the Postgresql Connection String. 

#include<stdio.h>

#include<string.h>

int Check_Token(char *Token,char *Compare)

{

if(strcmp(Token,Compare)!=0)

{

fprintf(stderr,"Invalid Identifier %s %s",Token,Compare);

return 0;

}

return 1;

}

int Framing_Connection_String(char Line[])

{

char Conn_String[100],*Host,*Port,*Database,*User,*Password,*Search;

Search=strstr(Line,"[PGM]");

if(Search)

{

Host=strtok(Line,"[PGM]Host:");

}

Search=strstr(Line,"[MONITOR]");

if(Search)

{

Host=strtok(Line,"[MONITOR]Host:");

}

Port=strtok(NULL,"Port:");

User=strtok(NULL,":");

if(Check_Token(User,"User"))

User=strtok(NULL,":");

Database=strtok(NULL,":");

if(Check_Token(Database,"Database"))

Database=strtok(NULL,":");

Password=strtok(NULL,":");

if(Check_Token(Password,"Password"))

Password=strtok(NULL,":");

sprintf(Conn_String,"hostaddr=%s port=%s dbname=%s user=%s password=%s",Host,Port,Database,User,Password);

printf("%s\n",Conn_String);

}

int main()

{

FILE *Credfile=fopen("/tmp/.cred.txt","r");

char *File_Buffer=(char *) malloc(2048);

char Delimit[]="\n";

char *Read_File=" ",**Line;

int LN=0,i=0;

fread(File_Buffer,sizeof(char),2048,Credfile);

Line=(char **) malloc(sizeof(char *)*50);

Read_File = strtok(File_Buffer,Delimit);

while(Read_File)

{

Line[LN]=(char *) malloc(strlen(Read_File));

strcpy(Line[LN],Read_File);

Read_File = strtok(NULL,Delimit);

LN++;

}

while(i<LN)

{

Framing_Connection_String(Line[i]);

free(Line[i++]);

}

}

How to compile

============

[root@localhost PGBAR]# gcc -o parsefile parsefile.c

Output

=====

[root@localhost PGBAR]# ./parsefile

hostaddr=127.0.0.1 port=5434 dbname=pgm user=postgres password=postgres

hostaddr=127.0.0.1 port=5434 dbname=postgres user=postgres password=postgres

hostaddr=127.0.0.1 port=5434 dbname=postgres user=postgres password=postgres

--Dinesh