#include <netinet/in.h>
#endif /* _WIN32 */
-#include <ctype.h>
#include <errno.h>
#include <memory.h>
#include <stdio.h>
#if !defined(_WIN32) && !defined(__BORLANDC__)
#include <unistd.h>
#endif /* !_WIN32 && !__BORLANDC__ */
-#ifdef HAVE_LIMITS_H
-#include <limits.h>
-#else
-#define INT_MAX 2147483647
-#endif
#include "pcap-int.h"
#include "os-proto.h"
#endif
-/* Not all systems have IFF_LOOPBACK */
-#ifdef IFF_LOOPBACK
-#define ISLOOPBACK(name, flags) ((flags) & IFF_LOOPBACK)
-#else
-#define ISLOOPBACK(name, flags) ((name)[0] == 'l' && (name)[1] == 'o' && \
- (isdigit((unsigned char)((name)[2])) || (name)[2] == '\0'))
-#endif
-
-#ifdef IFF_UP
-#define ISUP(flags) ((flags) & IFF_UP)
-#else
-#define ISUP(flags) 0
-#endif
-
-#ifdef IFF_RUNNING
-#define ISRUNNING(flags) ((flags) & IFF_RUNNING)
-#else
-#define ISRUNNING(flags) 0
-#endif
-
-struct sockaddr *
-dup_sockaddr(struct sockaddr *sa, size_t sa_length)
-{
- struct sockaddr *newsa;
-
- if ((newsa = malloc(sa_length)) == NULL)
- return (NULL);
- return (memcpy(newsa, sa, sa_length));
-}
-
-/*
- * Construct a "figure of merit" for an interface, for use when sorting
- * the list of interfaces, in which interfaces that are up are superior
- * to interfaces that aren't up, interfaces that are up and running are
- * superior to interfaces that are up but not running, and non-loopback
- * interfaces that are up and running are superior to loopback interfaces,
- * and interfaces with the same flags have a figure of merit that's higher
- * the lower the instance number.
- *
- * The goal is to try to put the interfaces most likely to be useful for
- * capture at the beginning of the list.
- *
- * The figure of merit, which is lower the "better" the interface is,
- * has the uppermost bit set if the interface isn't running, the bit
- * below that set if the interface isn't up, the bit below that set
- * if the interface is a loopback interface, and the interface index
- * in the 29 bits below that. (Yes, we assume u_int is 32 bits.)
- */
-static u_int
-get_figure_of_merit(pcap_if_t *dev)
-{
- const char *cp;
- u_int n;
-
- if (strcmp(dev->name, "any") == 0) {
- /*
- * Give the "any" device an artificially high instance
- * number, so it shows up after all other non-loopback
- * interfaces.
- */
- n = 0x1FFFFFFF; /* 29 all-1 bits */
- } else {
- /*
- * A number at the end of the device name string is
- * assumed to be a unit number.
- */
- cp = dev->name + strlen(dev->name) - 1;
- while (cp-1 >= dev->name && *(cp-1) >= '0' && *(cp-1) <= '9')
- cp--;
- if (*cp >= '0' && *cp <= '9')
- n = atoi(cp);
- else
- n = 0;
- }
- if (!(dev->flags & PCAP_IF_RUNNING))
- n |= 0x80000000;
- if (!(dev->flags & PCAP_IF_UP))
- n |= 0x40000000;
- if (dev->flags & PCAP_IF_LOOPBACK)
- n |= 0x20000000;
- return (n);
-}
-
-/*
- * Look for a given device in the specified list of devices.
- *
- * If we find it, return 0 and set *curdev_ret to point to it.
- *
- * If we don't find it, check whether we can open it:
- *
- * If that fails with PCAP_ERROR_NO_SUCH_DEVICE or
- * PCAP_ERROR_IFACE_NOT_UP, don't attempt to add an entry for
- * it, as that probably means it exists but doesn't support
- * packet capture.
- *
- * Otherwise, attempt to add an entry for it, with the specified
- * ifnet flags and description, and, if that succeeds, return 0
- * and set *curdev_ret to point to the new entry, otherwise
- * return PCAP_ERROR and set errbuf to an error message.
- */
-int
-add_or_find_if(pcap_if_t **curdev_ret, pcap_if_t **alldevs, const char *name,
- u_int flags, const char *description, char *errbuf)
-{
- pcap_t *p;
- pcap_if_t *curdev, *prevdev, *nextdev;
- u_int this_figure_of_merit, nextdev_figure_of_merit;
- char open_errbuf[PCAP_ERRBUF_SIZE];
- int ret;
-
- /*
- * Is there already an entry in the list for this interface?
- */
- for (curdev = *alldevs; curdev != NULL; curdev = curdev->next) {
- if (strcmp(name, curdev->name) == 0)
- break; /* yes, we found it */
- }
-
- if (curdev == NULL) {
- /*
- * No, we didn't find it.
- *
- * Can we open this interface for live capture?
- *
- * We do this check so that interfaces that are
- * supplied by the interface enumeration mechanism
- * we're using but that don't support packet capture
- * aren't included in the list. Loopback interfaces
- * on Solaris are an example of this; we don't just
- * omit loopback interfaces on all platforms because
- * you *can* capture on loopback interfaces on some
- * OSes.
- *
- * On OS X, we don't do this check if the device
- * name begins with "wlt"; at least some versions
- * of OS X offer monitor mode capturing by having
- * a separate "monitor mode" device for each wireless
- * adapter, rather than by implementing the ioctls
- * that {Free,Net,Open,DragonFly}BSD provide.
- * Opening that device puts the adapter into monitor
- * mode, which, at least for some adapters, causes
- * them to deassociate from the network with which
- * they're associated.
- *
- * Instead, we try to open the corresponding "en"
- * device (so that we don't end up with, for users
- * without sufficient privilege to open capture
- * devices, a list of adapters that only includes
- * the wlt devices).
- */
-#ifdef __APPLE__
- if (strncmp(name, "wlt", 3) == 0) {
- char *en_name;
- size_t en_name_len;
-
- /*
- * Try to allocate a buffer for the "en"
- * device's name.
- */
- en_name_len = strlen(name) - 1;
- en_name = malloc(en_name_len + 1);
- if (en_name == NULL) {
- (void)snprintf(errbuf, PCAP_ERRBUF_SIZE,
- "malloc: %s", pcap_strerror(errno));
- return (-1);
- }
- strcpy(en_name, "en");
- strcat(en_name, name + 3);
- p = pcap_create(en_name, open_errbuf);
- free(en_name);
- } else
-#endif /* __APPLE */
- p = pcap_create(name, open_errbuf);
- if (p == NULL) {
- /*
- * The attempt to create the pcap_t failed;
- * that's probably an indication that we're
- * out of memory.
- *
- * Don't bother including this interface,
- * but don't treat it as an error.
- */
- *curdev_ret = NULL;
- return (0);
- }
- /* Small snaplen, so we don't try to allocate much memory. */
- pcap_set_snaplen(p, 68);
- ret = pcap_activate(p);
- pcap_close(p);
- switch (ret) {
-
- case PCAP_ERROR_NO_SUCH_DEVICE:
- case PCAP_ERROR_IFACE_NOT_UP:
- /*
- * We expect these two errors - they're the
- * reason we try to open the device.
- *
- * PCAP_ERROR_NO_SUCH_DEVICE typically means
- * "there's no such device *known to the
- * OS's capture mechanism*", so, even though
- * it might be a valid network interface, you
- * can't capture on it (e.g., the loopback
- * device in Solaris up to Solaris 10, or
- * the vmnet devices in OS X with VMware
- * Fusion). We don't include those devices
- * in our list of devices, as there's no
- * point in doing so - they're not available
- * for capture.
- *
- * PCAP_ERROR_IFACE_NOT_UP means that the
- * OS's capture mechanism doesn't work on
- * interfaces not marked as up; some capture
- * mechanisms *do* support that, so we no
- * longer reject those interfaces out of hand,
- * but we *do* want to reject them if they
- * can't be opened for capture.
- */
- *curdev_ret = NULL;
- return (0);
- }
-
- /*
- * Yes, we can open it, or we can't, for some other
- * reason.
- *
- * If we can open it, we want to offer it for
- * capture, as you can capture on it. If we can't,
- * we want to offer it for capture, so that, if
- * the user tries to capture on it, they'll get
- * an error and they'll know why they can't
- * capture on it (e.g., insufficient permissions)
- * or they'll report it as a problem (and then
- * have the error message to provide as information).
- *
- * Allocate a new entry.
- */
- curdev = malloc(sizeof(pcap_if_t));
- if (curdev == NULL) {
- (void)snprintf(errbuf, PCAP_ERRBUF_SIZE,
- "malloc: %s", pcap_strerror(errno));
- return (-1);
- }
-
- /*
- * Fill in the entry.
- */
- curdev->next = NULL;
- curdev->name = strdup(name);
- if (curdev->name == NULL) {
- (void)snprintf(errbuf, PCAP_ERRBUF_SIZE,
- "malloc: %s", pcap_strerror(errno));
- free(curdev);
- return (-1);
- }
- if (description != NULL) {
- /*
- * We have a description for this interface.
- */
- curdev->description = strdup(description);
- if (curdev->description == NULL) {
- (void)snprintf(errbuf, PCAP_ERRBUF_SIZE,
- "malloc: %s", pcap_strerror(errno));
- free(curdev->name);
- free(curdev);
- return (-1);
- }
- } else {
- /*
- * We don't.
- */
- curdev->description = NULL;
- }
- curdev->addresses = NULL; /* list starts out as empty */
- curdev->flags = 0;
- if (ISLOOPBACK(name, flags))
- curdev->flags |= PCAP_IF_LOOPBACK;
- if (ISUP(flags))
- curdev->flags |= PCAP_IF_UP;
- if (ISRUNNING(flags))
- curdev->flags |= PCAP_IF_RUNNING;
-
- /*
- * Add it to the list, in the appropriate location.
- * First, get the "figure of merit" for this
- * interface.
- */
- this_figure_of_merit = get_figure_of_merit(curdev);
-
- /*
- * Now look for the last interface with an figure of merit
- * less than or equal to the new interface's figure of
- * merit.
- *
- * We start with "prevdev" being NULL, meaning we're before
- * the first element in the list.
- */
- prevdev = NULL;
- for (;;) {
- /*
- * Get the interface after this one.
- */
- if (prevdev == NULL) {
- /*
- * The next element is the first element.
- */
- nextdev = *alldevs;
- } else
- nextdev = prevdev->next;
-
- /*
- * Are we at the end of the list?
- */
- if (nextdev == NULL) {
- /*
- * Yes - we have to put the new entry
- * after "prevdev".
- */
- break;
- }
-
- /*
- * Is the new interface's figure of merit less
- * than the next interface's figure of merit,
- * meaning that the new interface is better
- * than the next interface?
- */
- nextdev_figure_of_merit = get_figure_of_merit(nextdev);
- if (this_figure_of_merit < nextdev_figure_of_merit) {
- /*
- * Yes - we should put the new entry
- * before "nextdev", i.e. after "prevdev".
- */
- break;
- }
-
- prevdev = nextdev;
- }
-
- /*
- * Insert before "nextdev".
- */
- curdev->next = nextdev;
-
- /*
- * Insert after "prevdev" - unless "prevdev" is null,
- * in which case this is the first interface.
- */
- if (prevdev == NULL) {
- /*
- * This is the first interface. Pass back a
- * pointer to it, and put "curdev" before
- * "nextdev".
- */
- *alldevs = curdev;
- } else
- prevdev->next = curdev;
- }
-
- *curdev_ret = curdev;
- return (0);
-}
-
-/*
- * Try to get a description for a given device.
- * Returns a mallocated description if it could and NULL if it couldn't.
- *
- * XXX - on FreeBSDs that support it, should it get the sysctl named
- * "dev.{adapter family name}.{adapter unit}.%desc" to get a description
- * of the adapter? Note that "dev.an.0.%desc" is "Aironet PC4500/PC4800"
- * with my Cisco 350 card, so the name isn't entirely descriptive. The
- * "dev.an.0.%pnpinfo" has a better description, although one might argue
- * that the problem is really a driver bug - if it can find out that it's
- * a Cisco 340 or 350, rather than an old Aironet card, it should use
- * that in the description.
- *
- * Do NetBSD, DragonflyBSD, or OpenBSD support this as well? FreeBSD
- * and OpenBSD let you get a description, but it's not generated by the OS,
- * it's set with another ioctl that ifconfig supports; we use that to get
- * a description in FreeBSD and OpenBSD, but if there is no such
- * description available, it still might be nice to get some description
- * string based on the device type or something such as that.
- *
- * In OS X, the System Configuration framework can apparently return
- * names in 10.4 and later.
- *
- * It also appears that freedesktop.org's HAL offers an "info.product"
- * string, but the HAL specification says it "should not be used in any
- * UI" and "subsystem/capability specific properties" should be used
- * instead and, in any case, I think HAL is being deprecated in
- * favor of other stuff such as DeviceKit. DeviceKit doesn't appear
- * to have any obvious product information for devices, but maybe
- * I haven't looked hard enough.
- *
- * Using the System Configuration framework, or HAL, or DeviceKit, or
- * whatever, would require that libpcap applications be linked with
- * the frameworks/libraries in question. That shouldn't be a problem
- * for programs linking with the shared version of libpcap (unless
- * you're running on AIX - which I think is the only UN*X that doesn't
- * support linking a shared library with other libraries on which it
- * depends, and having an executable linked only with the first shared
- * library automatically pick up the other libraries when started -
- * and using HAL or whatever). Programs linked with the static
- * version of libpcap would have to use pcap-config with the --static
- * flag in order to get the right linker flags in order to pick up
- * the additional libraries/frameworks; those programs need that anyway
- * for libpcap 1.1 and beyond on Linux, as, by default, it requires
- * -lnl.
- *
- * Do any other UN*Xes, or desktop environments support getting a
- * description?
- */
-static char *
-get_if_description(const char *name)
-{
-#ifdef SIOCGIFDESCR
- char *description = NULL;
- int s;
- struct ifreq ifrdesc;
-#ifndef IFDESCRSIZE
- size_t descrlen = 64;
-#else
- size_t descrlen = IFDESCRSIZE;
-#endif /* IFDESCRSIZE */
-
- /*
- * Get the description for the interface.
- */
- memset(&ifrdesc, 0, sizeof ifrdesc);
- strlcpy(ifrdesc.ifr_name, name, sizeof ifrdesc.ifr_name);
- s = socket(AF_INET, SOCK_DGRAM, 0);
- if (s >= 0) {
-#ifdef __FreeBSD__
- /*
- * On FreeBSD, if the buffer isn't big enough for the
- * description, the ioctl succeeds, but the description
- * isn't copied, ifr_buffer.length is set to the description
- * length, and ifr_buffer.buffer is set to NULL.
- */
- for (;;) {
- free(description);
- if ((description = malloc(descrlen)) != NULL) {
- ifrdesc.ifr_buffer.buffer = description;
- ifrdesc.ifr_buffer.length = descrlen;
- if (ioctl(s, SIOCGIFDESCR, &ifrdesc) == 0) {
- if (ifrdesc.ifr_buffer.buffer ==
- description)
- break;
- else
- descrlen = ifrdesc.ifr_buffer.length;
- } else {
- /*
- * Failed to get interface description.
- */
- free(description);
- description = NULL;
- break;
- }
- } else
- break;
- }
-#else /* __FreeBSD__ */
- /*
- * The only other OS that currently supports
- * SIOCGIFDESCR is OpenBSD, and it has no way
- * to get the description length - it's clamped
- * to a maximum of IFDESCRSIZE.
- */
- if ((description = malloc(descrlen)) != NULL) {
- ifrdesc.ifr_data = (caddr_t)description;
- if (ioctl(s, SIOCGIFDESCR, &ifrdesc) != 0) {
- /*
- * Failed to get interface description.
- */
- free(description);
- description = NULL;
- }
- }
-#endif /* __FreeBSD__ */
- close(s);
- if (description != NULL && strlen(description) == 0) {
- free(description);
- description = NULL;
- }
- }
-
- return (description);
-#else /* SIOCGIFDESCR */
- return (NULL);
-#endif /* SIOCGIFDESCR */
-}
-
-/*
- * Try to get a description for a given device, and then look for that
- * device in the specified list of devices.
- *
- * If we find it, then, if the specified address isn't null, add it to
- * the list of addresses for the device and return 0.
- *
- * If we don't find it, check whether we can open it:
- *
- * If that fails with PCAP_ERROR_NO_SUCH_DEVICE or
- * PCAP_ERROR_IFACE_NOT_UP, don't attempt to add an entry for
- * it, as that probably means it exists but doesn't support
- * packet capture.
- *
- * Otherwise, attempt to add an entry for it, with the specified
- * ifnet flags and description, and, if that succeeds, add the
- * specified address to its list of addresses if that address is
- * non-null, set *curdev_ret to point to the new entry, and
- * return 0, otherwise return PCAP_ERROR and set errbuf to an
- * error message.
- *
- * (We can get called with a null address because we might get a list
- * of interface name/address combinations from the underlying OS, with
- * the address being absent in some cases, rather than a list of
- * interfaces with each interface having a list of addresses, so this
- * call may be the only call made to add to the list, and we want to
- * add interfaces even if they have no addresses.)
- */
-int
-add_addr_to_iflist(pcap_if_t **alldevs, const char *name, u_int flags,
- struct sockaddr *addr, size_t addr_size,
- struct sockaddr *netmask, size_t netmask_size,
- struct sockaddr *broadaddr, size_t broadaddr_size,
- struct sockaddr *dstaddr, size_t dstaddr_size,
- char *errbuf)
-{
- char *description;
- pcap_if_t *curdev;
-
- description = get_if_description(name);
- if (add_or_find_if(&curdev, alldevs, name, flags, description,
- errbuf) == -1) {
- free(description);
- /*
- * Error - give up.
- */
- return (-1);
- }
- free(description);
- if (curdev == NULL) {
- /*
- * Device wasn't added because it can't be opened.
- * Not a fatal error.
- */
- return (0);
- }
-
- if (addr == NULL) {
- /*
- * There's no address to add; this entry just meant
- * "here's a new interface".
- */
- return (0);
- }
-
- /*
- * "curdev" is an entry for this interface, and we have an
- * address for it; add an entry for that address to the
- * interface's list of addresses.
- *
- * Allocate the new entry and fill it in.
- */
- return (add_addr_to_dev(curdev, addr, addr_size, netmask,
- netmask_size, broadaddr, broadaddr_size, dstaddr,
- dstaddr_size, errbuf));
-}
-
-/*
- * Add an entry to the list of addresses for an interface.
- * "curdev" is the entry for that interface.
- * If this is the first IP address added to the interface, move it
- * in the list as appropriate.
- */
-int
-add_addr_to_dev(pcap_if_t *curdev,
- struct sockaddr *addr, size_t addr_size,
- struct sockaddr *netmask, size_t netmask_size,
- struct sockaddr *broadaddr, size_t broadaddr_size,
- struct sockaddr *dstaddr, size_t dstaddr_size,
- char *errbuf)
-{
- pcap_addr_t *curaddr, *prevaddr, *nextaddr;
-
- curaddr = malloc(sizeof(pcap_addr_t));
- if (curaddr == NULL) {
- (void)snprintf(errbuf, PCAP_ERRBUF_SIZE,
- "malloc: %s", pcap_strerror(errno));
- return (-1);
- }
-
- curaddr->next = NULL;
- if (addr != NULL) {
- curaddr->addr = dup_sockaddr(addr, addr_size);
- if (curaddr->addr == NULL) {
- (void)snprintf(errbuf, PCAP_ERRBUF_SIZE,
- "malloc: %s", pcap_strerror(errno));
- free(curaddr);
- return (-1);
- }
- } else
- curaddr->addr = NULL;
-
- if (netmask != NULL) {
- curaddr->netmask = dup_sockaddr(netmask, netmask_size);
- if (curaddr->netmask == NULL) {
- (void)snprintf(errbuf, PCAP_ERRBUF_SIZE,
- "malloc: %s", pcap_strerror(errno));
- if (curaddr->addr != NULL)
- free(curaddr->addr);
- free(curaddr);
- return (-1);
- }
- } else
- curaddr->netmask = NULL;
-
- if (broadaddr != NULL) {
- curaddr->broadaddr = dup_sockaddr(broadaddr, broadaddr_size);
- if (curaddr->broadaddr == NULL) {
- (void)snprintf(errbuf, PCAP_ERRBUF_SIZE,
- "malloc: %s", pcap_strerror(errno));
- if (curaddr->netmask != NULL)
- free(curaddr->netmask);
- if (curaddr->addr != NULL)
- free(curaddr->addr);
- free(curaddr);
- return (-1);
- }
- } else
- curaddr->broadaddr = NULL;
-
- if (dstaddr != NULL) {
- curaddr->dstaddr = dup_sockaddr(dstaddr, dstaddr_size);
- if (curaddr->dstaddr == NULL) {
- (void)snprintf(errbuf, PCAP_ERRBUF_SIZE,
- "malloc: %s", pcap_strerror(errno));
- if (curaddr->broadaddr != NULL)
- free(curaddr->broadaddr);
- if (curaddr->netmask != NULL)
- free(curaddr->netmask);
- if (curaddr->addr != NULL)
- free(curaddr->addr);
- free(curaddr);
- return (-1);
- }
- } else
- curaddr->dstaddr = NULL;
-
- /*
- * Find the end of the list of addresses.
- */
- for (prevaddr = curdev->addresses; prevaddr != NULL; prevaddr = nextaddr) {
- nextaddr = prevaddr->next;
- if (nextaddr == NULL) {
- /*
- * This is the end of the list.
- */
- break;
- }
- }
-
- if (prevaddr == NULL) {
- /*
- * The list was empty; this is the first member.
- */
- curdev->addresses = curaddr;
- } else {
- /*
- * "prevaddr" is the last member of the list; append
- * this member to it.
- */
- prevaddr->next = curaddr;
- }
-
- return (0);
-}
-
-/*
- * Look for a given device in the specified list of devices.
- *
- * If we find it, return 0.
- *
- * If we don't find it, check whether we can open it:
- *
- * If that fails with PCAP_ERROR_NO_SUCH_DEVICE or
- * PCAP_ERROR_IFACE_NOT_UP, don't attempt to add an entry for
- * it, as that probably means it exists but doesn't support
- * packet capture.
- *
- * Otherwise, attempt to add an entry for it, with the specified
- * ifnet flags and description, and, if that succeeds, return 0
- * and set *curdev_ret to point to the new entry, otherwise
- * return PCAP_ERROR and set errbuf to an error message.
- */
-int
-pcap_add_if(pcap_if_t **devlist, const char *name, u_int flags,
- const char *description, char *errbuf)
-{
- pcap_if_t *curdev;
-
- return (add_or_find_if(&curdev, devlist, name, flags, description,
- errbuf));
-}
-
-
-/*
- * Free a list of interfaces.
- */
-void
-pcap_freealldevs(pcap_if_t *alldevs)
-{
- pcap_if_t *curdev, *nextdev;
- pcap_addr_t *curaddr, *nextaddr;
-
- for (curdev = alldevs; curdev != NULL; curdev = nextdev) {
- nextdev = curdev->next;
-
- /*
- * Free all addresses.
- */
- for (curaddr = curdev->addresses; curaddr != NULL; curaddr = nextaddr) {
- nextaddr = curaddr->next;
- if (curaddr->addr)
- free(curaddr->addr);
- if (curaddr->netmask)
- free(curaddr->netmask);
- if (curaddr->broadaddr)
- free(curaddr->broadaddr);
- if (curaddr->dstaddr)
- free(curaddr->dstaddr);
- free(curaddr);
- }
-
- /*
- * Free the name string.
- */
- free(curdev->name);
-
- /*
- * Free the description string, if any.
- */
- if (curdev->description != NULL)
- free(curdev->description);
-
- /*
- * Free the interface.
- */
- free(curdev);
- }
-}
-
#if !defined(_WIN32) && !defined(MSDOS)
/*
fd = socket(AF_INET, SOCK_DGRAM, 0);
if (fd < 0) {
- (void)snprintf(errbuf, PCAP_ERRBUF_SIZE, "socket: %s",
+ (void)pcap_snprintf(errbuf, PCAP_ERRBUF_SIZE, "socket: %s",
pcap_strerror(errno));
return (-1);
}
(void)strlcpy(ifr.ifr_name, device, sizeof(ifr.ifr_name));
if (ioctl(fd, SIOCGIFADDR, (char *)&ifr) < 0) {
if (errno == EADDRNOTAVAIL) {
- (void)snprintf(errbuf, PCAP_ERRBUF_SIZE,
+ (void)pcap_snprintf(errbuf, PCAP_ERRBUF_SIZE,
"%s: no IPv4 address assigned", device);
} else {
- (void)snprintf(errbuf, PCAP_ERRBUF_SIZE,
+ (void)pcap_snprintf(errbuf, PCAP_ERRBUF_SIZE,
"SIOCGIFADDR: %s: %s",
device, pcap_strerror(errno));
}
#endif
(void)strlcpy(ifr.ifr_name, device, sizeof(ifr.ifr_name));
if (ioctl(fd, SIOCGIFNETMASK, (char *)&ifr) < 0) {
- (void)snprintf(errbuf, PCAP_ERRBUF_SIZE,
+ (void)pcap_snprintf(errbuf, PCAP_ERRBUF_SIZE,
"SIOCGIFNETMASK: %s: %s", device, pcap_strerror(errno));
(void)close(fd);
return (-1);
else if (IN_CLASSC(*netp))
*maskp = IN_CLASSC_NET;
else {
- (void)snprintf(errbuf, PCAP_ERRBUF_SIZE,
+ (void)pcap_snprintf(errbuf, PCAP_ERRBUF_SIZE,
"inet class for 0x%x unknown", *netp);
return (-1);
}
{
DWORD dwVersion;
DWORD dwWindowsMajorVersion;
+ char our_errbuf[PCAP_ERRBUF_SIZE+1];
+
dwVersion = GetVersion(); /* get the OS version */
dwWindowsMajorVersion = (DWORD)(LOBYTE(LOWORD(dwVersion)));
- char our_errbuf[PCAP_ERRBUF_SIZE+1];
if (dwVersion >= 0x80000000 && dwWindowsMajorVersion >= 4) {
/*
if(TAdaptersName == NULL)
{
- (void)snprintf(errbuf, PCAP_ERRBUF_SIZE, "memory allocation failure");
+ (void)pcap_snprintf(errbuf, PCAP_ERRBUF_SIZE, "memory allocation failure");
return NULL;
}
if ( !PacketGetAdapterNames((PTSTR)TAdaptersName,&NameLength) )
{
pcap_win32_err_to_str(GetLastError(), our_errbuf);
- (void)snprintf(errbuf, PCAP_ERRBUF_SIZE,
+ (void)pcap_snprintf(errbuf, PCAP_ERRBUF_SIZE,
"PacketGetAdapterNames: %s", our_errbuf);
free(TAdaptersName);
return NULL;
projects / libpcap / blobdiff