how do I store stdout value from system(); into a char* variable?

[everyoneca]

how do I store stdout value from system(); into a char* variable ?

e.g.

I have child process that executes system(); function , but the output is displayed on server (parent) tty,

I would like to store the output of system("ls -la");

into a char* variable for later use / display .



is this possible ?

thanks,

[pdc]

You want something like:

#include <stdio.h>
#include <unistd.h>
#define BUFSIZE 100

int main(void) {
  char buf[BUFSIZE];

  FILE * f = popen("ls -al", "r");
  size_t r;
  while((r = fread(buf, sizeof(char), BUFSIZE - 1, f)) > 0) {
    buf[r+1] = '\0';
    printf("%s", buf);
  }

  pclose(f);
  return 0;
}