CODEWITHSUNDEEP
c
Sümer Kolçak
Sümer Kolçak

Reputation: 171

fgets + stdin : Is it possible to skip first 2 characters?

Story : HTML-form uses "post" method to send data. There is only <textarea> inside the HTML-form and it requires me to give it a name. I gave it the name "a". However because of this, the stdin starts with a=. In other words it contains 2 characters in the beginning of it that is not needed.

Mission : If possible, read the stdin starting from the 3rd character.

Total characters in stdin : ( prints : 23 )

char* len;
len = getenv("CONTENT_LENGTH");
fputs(len, stdout);

Reading stdin : ( +1 for the closure )

char receive[24]; 
fgets(receive, 24, stdin);

Desired code : ( -2 for a= )

char receive[22];
// If possible, read stdin starting from the 3rd character, 
// until the 24th character.

Upvotes: 2

Views: 282

Answers (1)

dash-o
dash-o

Reputation: 14491

You can skip 2 characters either by:

getchar() ; getchar() ;

Not flexible, but will do the job.

However, from problem description, looks like you want to split input line into key value pairs, with '=' between key and value. Consider:

   char key[20], value[100] ;
   if ( scanf("%19[^=]=%99[^\n]", key, value) == 2 ) {
       // do something with key, value
   } ;

Upvotes: 3

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