Popular "fseek" questions

Append to the end of a file in C

I'm trying to append the contents of a file myfile.txt to the end of a second file myfile2.txt …

c file append fseek

Inserting data to file in c

I need to add a string before the 45th byte in an existing file. I tried using fseek as shown …

c file pointers fseek

Read a file backwards line by line using fseek

How do I read a file backwards line by line using fseek? code can be helpful. must be cross platform …

php file io fseek

How to use SEEK_CUR on a FILE*

offset=ftell(ptr)-sizeof(student1); fseek(ptr,offset,SEEK_SET); fwrite(&student1,sizeof(student1),1,ptr); This C code means …

c fseek

Using fseek and ftell to determine the size of a file has a vulnerability?

I've read posts that show how to use fseek and ftell to determine the size of a file. FILE *fp; …

c file fseek

Seek to line number in text file using C

I have an ASCII binary file which looks something like: 00010110001001000110011001000111 01011000011100001010100001001000 11110001011010000010010101111010 00000000000000000000000000000000 01011010101000010001010101110000 Each line has 32 characters (so it is of length 33 with \…

c fseek

Go to a certain point of a binary file in C (using fseek) and then reading from that location (using fread)

I am wondering if this is the best way to go about solving my problem. I know the values for …

c binary fread fseek

fseek passing negative offset and SEEK_CUR

I have a bad performance running fseek(..) in a very big file. Every time a call fseek function, I need …

c posix fseek

Does fseek() move the file pointer to the beginning of the file if it was opened in "a+b" mode?

I wish to open a file using the "a+b" mode, i.e. if it does not exist it is …

c append fopen fseek

Using fseek to backtrack

Is using fseek to backtrack character fscanf operations reliable? Like for example if I have just fscanf-ed 10 characters but I …