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Home > Archive > Unix Programming > February 2005 > small prob with socket
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small prob with socket
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| puzzlecracker 2005-02-21, 6:00 pm |
| In the function msg_receive, fd is a socket connected to a remote
Internet client. What is wrong with msg_receive? Suggest a fix.
#define MAXVALS 65536
typedef struct _msg_t {
unsigned int num;
unsigned int values[MAXVALS];
} msg_t;
int msg_receive (int fd, msg_t *m)
{
size_t sz = sizeof (unsigned int);
assert (m);
if (read (fd, (void *)&m->num, sz) < sz)
return -1;
return read (fd, (void *)&m->values, sz * m->num);
}
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| Chris McDonald 2005-02-21, 6:00 pm |
| "puzzlecracker" <ironsel2000@gmail.com> writes:
>In the function msg_receive, fd is a socket connected to a remote
>Internet client. What is wrong with msg_receive? Suggest a fix.
> #define MAXVALS 65536
> typedef struct _msg_t {
> unsigned int num;
> unsigned int values[MAXVALS];
> } msg_t;
> int msg_receive (int fd, msg_t *m)
> {
> size_t sz = sizeof (unsigned int);
> assert (m);
> if (read (fd, (void *)&m->num, sz) < sz)
> return -1;
> return read (fd, (void *)&m->values, sz * m->num);
> }
More homework?
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| puzzlecracker 2005-02-21, 6:00 pm |
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Chris McDonald wrote:
> "puzzlecracker" <ironsel2000@gmail.com> writes:
>
>
>
>
> More homework?
that is from inteview?  ))) too old for hws
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