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Moved pick_port_bind() to the libcommon common code so both client and server can use it. Client can now specify a range of ephemeral ports (transaction id)

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This commit is contained in:
Zack Bartel 2006-11-13 17:33:29 -08:00
parent 5f64014add
commit ec5973ac5f
4 changed files with 56 additions and 34 deletions
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15
tftp/main.c
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@ -102,6 +102,9 @@ const char *prompt = "tftp> ";
sigjmp_buf toplevel;
void intr(int);
struct servent *sp;
int portrange = 0;
unsigned int portrange_from = 0;
unsigned int portrange_to = 0;
void get (int, char **);
void help (int, char **);
@ -241,6 +244,16 @@ main(int argc, char *argv[])
case 'c':
iscmd = 1;
break;
case 'R':
if ( ++arg >= argc )
usage(EX_USAGE);
if ( sscanf(argv[arg], "%u:%u", &portrange_from, &portrange_to) != 2 ||
portrange_from > portrange_to || portrange_to > 65535 ) {
fprintf(stderr, "Bad port range: %s\n", argv[arg]);
exit(EX_USAGE);
}
portrange = 1;
break;
case 'h':
default:
usage(*optx == 'h' ? 0 : EX_USAGE);
@ -276,7 +289,7 @@ main(int argc, char *argv[])
}
bzero((char *)&s_in, sizeof (s_in));
s_in.sin_family = AF_INET;
if (bind(f, (struct sockaddr *)&s_in, sizeof (s_in)) < 0) {
if (pick_port_bind(f, &s_in, portrange_from, portrange_to)) {
perror("tftp: bind");
exit(EX_OSERR);
}