mirror of
https://github.com/moparisthebest/socat
synced 2024-12-21 22:48:48 -05:00
105 lines
3.9 KiB
C
105 lines
3.9 KiB
C
/* source: hostan.c */
|
|
/* Copyright Gerhard Rieger */
|
|
/* Published under the GNU General Public License V.2, see file COPYING */
|
|
|
|
/* the subroutine hostan makes a "HOST ANalysis". It gathers information
|
|
about the host environment it is running in without modifying its state
|
|
(almost).
|
|
*/
|
|
|
|
#include "xiosysincludes.h"
|
|
#include "mytypes.h"
|
|
#include "compat.h"
|
|
#include "error.h"
|
|
#include "sycls.h"
|
|
#include "sysutils.h"
|
|
#include "filan.h"
|
|
|
|
#include "hostan.h"
|
|
|
|
#include "error.h"
|
|
|
|
static int iffan(FILE *outfile);
|
|
|
|
int hostan(FILE *outfile) {
|
|
fprintf(outfile, "\nC TYPE SIZES\n");
|
|
fprintf(outfile, "sizeof(char) = %u\n", (unsigned int)sizeof(char));
|
|
fprintf(outfile, "sizeof(short) = %u\n", (unsigned int)sizeof(short));
|
|
fprintf(outfile, "sizeof(int) = %u\n", (unsigned int)sizeof(int));
|
|
fprintf(outfile, "sizeof(long) = %u\n", (unsigned int)sizeof(long));
|
|
#if HAVE_TYPE_LONGLONG
|
|
fprintf(outfile, "sizeof(long long) = %u\n", (unsigned int)sizeof(long long));
|
|
#endif
|
|
fprintf(outfile, "sizeof(size_t) = %u\n", (unsigned int)sizeof(size_t));
|
|
#include <sys/time.h> /* select(); OpenBSD: struct timespec */
|
|
fprintf(outfile, "sizeof(struct timespec) = %u\n", (unsigned int)sizeof(struct timespec));
|
|
fprintf(outfile, "sizeof(struct diag_dgram) = %u\n", (unsigned int)sizeof(struct diag_dgram));
|
|
fprintf(outfile, "((struct diag_dgram *)0)->op-((struct diag_dgram *)0) = %u\n", (unsigned int)((char *)(&((struct diag_dgram *)0)->op)-(char *)((struct diag_dgram *)0)));
|
|
fprintf(outfile, "((struct diag_dgram *)0)->now-((struct diag_dgram *)0) = %u\n", (unsigned int)((char *)(&((struct diag_dgram *)0)->now)-(char *)((struct diag_dgram *)0)));
|
|
fprintf(outfile, "((struct diag_dgram *)0)->exitcode-((struct diag_dgram *)0) = %u\n", (unsigned int)((char *)(&((struct diag_dgram *)0)->exitcode)-(char *)((struct diag_dgram *)0)));
|
|
fprintf(outfile, "((struct diag_dgram *)0)->text-((struct diag_dgram *)0) = %u\n", (unsigned int)((((struct diag_dgram *)0)->text)-(char *)((struct diag_dgram *)0)));
|
|
#if _WITH_SOCKET && (_WITH_IP4 || _WITH_IP6)
|
|
fprintf(outfile, "\nIP INTERFACES\n");
|
|
iffan(outfile);
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
#if _WITH_SOCKET && (_WITH_IP4 || _WITH_IP6)
|
|
static int iffan(FILE *outfile) {
|
|
/* Linux: man 7 netdevice */
|
|
/* FreeBSD, NetBSD: man 4 networking */
|
|
/* Solaris: man 7 if_tcp */
|
|
|
|
/* currently we support Linux and a little FreeBSD */
|
|
#ifdef SIOCGIFCONF /* not Solaris */
|
|
|
|
#define IFBUFSIZ 32*sizeof(struct ifreq) /*1024*/
|
|
int s;
|
|
unsigned char buff[IFBUFSIZ];
|
|
struct ifconf ic;
|
|
int i;
|
|
|
|
if ((s = Socket(PF_INET, SOCK_DGRAM, IPPROTO_IP)) < 0) {
|
|
Error1("socket(PF_INET, SOCK_DGRAM, IPPROTO_IP): %s", strerror(errno));
|
|
return -1;
|
|
}
|
|
|
|
for (i=0; i < IFBUFSIZ; ++i) {
|
|
buff[i] = 255;
|
|
}
|
|
ic.ifc_len = sizeof(buff);
|
|
ic.ifc_ifcu.ifcu_buf = (caddr_t)buff;
|
|
if (Ioctl(s, SIOCGIFCONF, &ic) < 0) {
|
|
Error3("ioctl(%d, SIOCGIFCONF, %p): %s", s, &ic, strerror(errno));
|
|
return -1;
|
|
}
|
|
|
|
for (i = 0; i < ic.ifc_len; i += sizeof(struct ifreq)) {
|
|
struct ifreq *ifp = (struct ifreq *)((caddr_t)ic.ifc_req + i);
|
|
#if 0 || defined(SIOCGIFINDEX) /* not NetBSD, OpenBSD */
|
|
struct ifreq ifr;
|
|
#endif
|
|
|
|
#if 0 || defined(SIOCGIFINDEX) /* not NetBSD, OpenBSD */
|
|
strcpy(ifr.ifr_name, ifp->ifr_name);
|
|
if (Ioctl(s, SIOCGIFINDEX, &ifr) < 0) {
|
|
Error3("ioctl(%d, SIOCGIFINDEX, {\"%s\"}): %s",
|
|
s, ifr.ifr_name, strerror(errno));
|
|
return 1;
|
|
}
|
|
#if HAVE_STRUCT_IFREQ_IFR_INDEX
|
|
fprintf(outfile, "%2d: %s\n", ifr.ifr_index, ifp->ifr_name);
|
|
#elif HAVE_STRUCT_IFREQ_IFR_IFINDEX
|
|
fprintf(outfile, "%2d: %s\n", ifr.ifr_ifindex, ifp->ifr_name);
|
|
#endif /* HAVE_STRUCT_IFREQ_IFR_INDEX */
|
|
#else /* !defined(SIOCGIFINDEX) */
|
|
fprintf(outfile, "%2d: %s\n", i/(int)sizeof(struct ifreq), ifp->ifr_name);
|
|
#endif /* defined(SIOCGIFINDEX) */
|
|
}
|
|
Close(s);
|
|
#endif /* defined(SIOCGIFCONF) */
|
|
return 0;
|
|
}
|
|
#endif /* _WITH_SOCKET */
|