This time I have a big problem (for me) with C language.
I searched in cplusplus.com or in google, and I tried with each function
but I don't solve this following question.
I have a text file with six rows, for example:

# begin file

row1...
row2...

# end file

I want to scan this file in C (not C++) language with stream and string functions.

How can I solve above?

Thanks very much for helping,
Savio

What is a C stream?
Then there are the general questions.
Is this homework?
What have you already done to try and complete the task?

ANSI C interface for accessing to file:
fopen
fread
fscanf
getline
...

I think this is a forum where someone can post questions.

ref Stream question, good so there is no confusion then.

Sure you can post questions but if someone answers it is another matter, so you have to help people to help yourself. "I tried with each function" What did you try? what did not work? what is your actual problem?

Once again is this homework or not?

My file is:

# Begin configuration file

OPT=/etc/myprogram/myprogram.log

OPT=/etc/myprogram/myprogram.lock

# End configuration file

I'd like copy /etc/myprogram/myprogram.log in something variable.

My stupid code is:

FILE* conf_file;
char* line = NULL;
int lsize = 0;

conf_file = fopen("/etc/program/myprogram.conf", "r");
fseek(conf_file, 0, SEEK_SET);
while (!feof(conf_file)) getline(line, lsize, conf_file);

I want copy row by row line value for using OPT value in C program.

How can I solve this problem?

Thanks,
Savio

And you have to do this in "C?" Not Perl? Or Awk?

You still have not told us of the problem (although we can see it) and you failed once again to answer the question Does this code compile? what error does it give?
What are the parameters types for the function getline?
How big is the string which you have allocated for the line?
What is the result of fopen?
What is the return value of getline?

No, is not a homework.

#include <stdio.h>
#include <stdlib.h>
#include <string.h>


int main(int argc, char* argv[]) {

int fd, d;
size_t lsize;
FILE* conf_file;
char * line = NULL;

if (argc == 1) {
printf("\nCommand syntax:\n");
printf("\n\tprogramd [ start | stop ]\n");
printf("\t\tstart: start daemon\n");
printf("\t\tstop: stop daemon\n");
}
else if (strcmp(argv[1], "start") == 0) {
conf_file = fopen("/etc/program/program.conf", "r");
if (conf_file == NULL) perror("File not open");
while (!feof(conf_file)) {
d = getline(line, lsize, "/etc/program/program.conf");
printf("%d\n", d);
printf("%s\n", line);
}
}

return(0);

}

The errors are:

bash-3.1# gcc programd.c -o programd
bash-3.1# ./programd

Command syntax:

programd [ start | stop ]
start: start daemon
stop: stop daemon
bash-3.1# ./programd start
-1
Segmentation fault
bash-3.1#

You should try upping you warning level and this will give you a hint as to why you are having a problem. In short the function is a GNU extension and not an ansi function and a warning will tell you something like "implict function declaration". Add the following to your code before including stdio.h or via the command line
and then think about the questions I already posed.
It may seem to you that I am being a pedantic arse, but hopefully this thread has shown you how you ask a question correctly and therefore get answers which may help you. In addition how you could possibly find the solution for yourself in future.

OK, thank you very much. The correct code is: