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/*
* Copyright © 2009 CNRS
* Copyright © 2009-2010 INRIA. All rights reserved.
* Copyright © 2009-2010 Université Bordeaux 1
* Copyright © 2009-2011 Cisco Systems, Inc. All rights reserved.
* See COPYING in top-level directory.
*/
#include <private/autogen/config.h>
#include <private/misc.h>
#include <stdarg.h>
#ifdef HAVE_SYS_UTSNAME_H
#include <sys/utsname.h>
#endif
#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include <ctype.h>
int hwloc_snprintf(char *str, size_t size, const char *format, ...)
{
int ret;
va_list ap;
static char bin;
size_t fakesize;
char *fakestr;
/* Some systems crash on str == NULL */
if (!size) {
str = &bin;
size = 1;
}
va_start(ap, format);
ret = vsnprintf(str, size, format, ap);
va_end(ap);
if (ret >= 0 && (size_t) ret != size-1)
return ret;
/* vsnprintf returned size-1 or -1. That could be a system which reports the
* written data and not the actually required room. Try increasing buffer
* size to get the latter. */
fakesize = size;
fakestr = NULL;
do {
fakesize *= 2;
free(fakestr);
fakestr = malloc(fakesize);
if (NULL == fakestr)
return -1;
va_start(ap, format);
errno = 0;
ret = vsnprintf(fakestr, fakesize, format, ap);
va_end(ap);
} while ((size_t) ret == fakesize-1 || (ret < 0 && (!errno || errno == ERANGE)));
if (ret >= 0 && size) {
if (size > (size_t) ret+1)
size = ret+1;
memcpy(str, fakestr, size-1);
str[size-1] = 0;
}
free(fakestr);
return ret;
}
int hwloc_namecoloncmp(const char *haystack, const char *needle, size_t n)
{
size_t i = 0;
while (*haystack && *haystack != ':') {
int ha = *haystack++;
int low_h = tolower(ha);
int ne = *needle++;
int low_n = tolower(ne);
if (low_h != low_n)
return 1;
i++;
}
return i < n;
}
void hwloc_add_uname_info(struct hwloc_topology *topology __hwloc_attribute_unused)
{
#ifdef HAVE_UNAME
struct utsname utsname;
if (uname(&utsname) < 0)
return;
hwloc_add_object_info(topology->levels[0][0], "OSName", utsname.sysname);
hwloc_add_object_info(topology->levels[0][0], "OSRelease", utsname.release);
hwloc_add_object_info(topology->levels[0][0], "OSVersion", utsname.version);
hwloc_add_object_info(topology->levels[0][0], "HostName", utsname.nodename);
hwloc_add_object_info(topology->levels[0][0], "Architecture", utsname.machine);
#endif /* HAVE_UNAME */
}
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