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/*
linuxinfo_common.c
Copyright (C) 1998-2000
All Rights Reserved.
Alex Buell <alex.buell@munted.org.uk>
Version Author Date Comments
----------------------------------------------------------------------
1.0.0 AIB 199803?? Initial development
1.0.1 AIB 20000405 Added read_line function
1.0.2 AIB 20000405 Moved strstr() from linuxinfo.h to here
1.0.3 AIB 20010809 Added getphysicalmemory()
Common functions module
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/utsname.h>
#include "linuxinfo.h"
void GetOperatingSystemInfo(struct os_stat *os)
{
#ifndef system_unknown
struct utsname buf;
uname(&buf);
strcpy(os->os_hostname, buf.nodename);
strcpy(os->os_name, buf.sysname);
strcpy(os->os_version, buf.release);
strcpy(os->os_revision, buf.version);
#else
strcpy(os->os_hostname, "Unknown");
strcpy(os->os_name, "Unknown");
strcpy(os->os_version, "Unknown");
strcpy(os->os_revision, "Unknown");
#endif /* system_unknown */
}
/* Really neat hack to detect all libraries known on Linux */
#ifndef system_unknown
asm (".weak gnu_get_libc_version");
asm (".weak __libc_version");
asm (".weak __linux_C_lib_version");
extern char *gnu_get_libc_version (void);
extern char *__linux_C_lib_version;
extern char __libc_version [];
#endif /* only define if on a Linux system :o) */
void GetSystemLibcInfo(struct lib_stat *lib)
{
int libc_major = 0, libc_minor = 0, libc_teeny = 0;
char *ptr;
/* initialise to unknown */
strcpy(lib->lib_version, "Unknown");
#ifndef system_unknown
if (gnu_get_libc_version != 0)
{
ptr = gnu_get_libc_version();
}
else if (&__libc_version != 0)
{
ptr = __libc_version;
}
else
ptr = __linux_C_lib_version;
while (!isdigit (*ptr))
ptr++;
sscanf (ptr, "%d.%d.%d", &libc_major, &libc_minor, &libc_teeny);
sprintf(lib->lib_version, "%d.%d.%d", libc_major, libc_minor, libc_teeny);
#endif /* system_unknown */
}
int read_line(int fd, char *buffer, size_t length)
{
off_t curpos = lseek(fd, 0, SEEK_CUR);
int len = read(fd, buffer, length);
char *p = strchr(buffer, 0x0a);
if (fd < 0)
return 0;
if (len < 0)
return len;
if (p != NULL)
len = (p - buffer) + 1;
lseek(fd, curpos + len, SEEK_SET);
if (p != NULL)
*p = 0;
return len;
}
int splitstring(char *first_string, char *second_string)
{
char *p;
p = strchr(first_string, ':');
if (!p)
return 0;
*(p-1) = '\0', p++;
while (isspace(*p)) p++;
strcpy(second_string, p);
}
LONGLONG getphysicalmemory(void)
{
LONGLONG memory;
struct stat st_buf;
if (stat("/proc/kcore", &st_buf) < 0)
{
printf("Could not stat /proc/kcore, failing\n");
}
memory = (LONGLONG)st_buf.st_size;
memory /= 1024; memory /= 1024;
return memory;
}
#if !(HAVE_STRSTR)
char *strstr (const char *haystack, const char *needle)
{
c, sc;
size_t len;
if ((c = *find++) != 0)
{
len = strlen(find);
do
{
do
{
if ((sc = *s++) == 0)
return (NULL);
}
while (sc != c);
}
while (strncmp(s, find, len) != 0);
s--;
}
return ((char *)s);
}
#endif
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