Remove system command

[durgeshsanagaram]

Currently, I am using system command in my source code as follows
main()
{
system("myexe -rate=25 -infile=abc.txt outfile.txt");
}
and I have myexe in the current directory and it works fine. Now, I need to replace the system command for security reasons and directly call the program in myexe. Do you have any thoughts?

I tried following and see problem .
main
{
typedef struct
{
char arg0[50];
char arg1[50];
char arg2[50];
char arg3[50];
} arg_struct_t;

strncpy(arg.arg0,"myexe",50);
strncpy(arg.arg1,"-rate=25",50);
strncpy(arg.arg2,"-infile=input.txt",50);
strncpy(arg.arg3,"outfile.txt",50);

modified_main(4,&argv);
}

modified_main(int argc, arg_struct_t * argv_t)
{
fprintf(stderr, "modified_main:%s, %s, %s, %s \n",argv_t->arg0, argv_t->arg1,argv_t->arg2,argv_t->arg3);
/* Good until here. Now, how do I copy argv_t-->arg0 to modified_main()' argv[0], argv[1], argv[2], argv[3]? so that myexe works like in system command.*/

I tried below and The following gave a bus error? why? Need second look.
argv[0] = (char*)malloc(50*sizeof(char));
argv[1] = (char*)malloc(50*sizeof(char));
argv[2] = (char*)malloc(50*sizeof(char));
argv[3] = (char*)malloc(50*sizeof(char));

strcpy(argv[0],argv_t->arg0);
strcpy(argv[1],argv_t->arg1);
strcpy(argv[2],argv_t->arg2);
strcpy(argv[3],argv_t->arg3);
}
Let me know, if you see any problems. I will debug accordingly.

[JohnGraham]

It seems like you are massively, massively overcomplicating this.

In the following example, myexe_main() simply prints its arguments, and main() calls it with whatever arguments it wants:

#include <stdio.h>

int myexe_main(int argc, char *argv[])
{
    for (int i = 0 ; i < argc ; i++)
        printf("%d: %s\n", i, argv[i]);
    
    return 0;
}

int main(void)
{
    char *args[] = {"prog-name", "--cake", "--is", "--good"};
    myexe_main(sizeof(args)/sizeof(*args), args);
    return 0;
}

...or have I got the wrong end of the stick?