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refactor so utmp reader can be used on windows

This commit is contained in:
Doug MacEachern 2005-07-24 06:00:13 +00:00
parent c545be8c5d
commit c5f3a8026a
1 changed files with 90 additions and 54 deletions
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144
src/sigar.c
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@ -743,6 +743,88 @@ SIGAR_DECLARE(int) sigar_who_list_destroy(sigar_t *sigar,
return SIGAR_OK;
}
#if defined(__sun)
# include <utmpx.h>
# define SIGAR_UTMP_FILE _UTMPX_FILE
# define ut_time ut_tv.tv_sec
#elif defined(WIN32)
/* XXX may not be the default */
#define SIGAR_UTMP_FILE "C:\\cygwin\\var\\run\\utmp"
#define UT_LINESIZE 16
#define UT_NAMESIZE 16
#define UT_HOSTSIZE 256
#define UT_IDLEN 2
#define ut_name ut_user
struct utmp {
short ut_type;
sigar_pid_t ut_pid;
char ut_line[UT_LINESIZE];
char ut_id[UT_IDLEN];
time_t ut_time;
char ut_user[UT_NAMESIZE];
char ut_host[UT_HOSTSIZE];
long ut_addr;
};
#else
# include <utmp.h>
# ifdef UTMP_FILE
# define SIGAR_UTMP_FILE UTMP_FILE
# else
# define SIGAR_UTMP_FILE _PATH_UTMP
# endif
#endif
#if defined(__FreeBSD__) || defined(DARWIN)
# define ut_user ut_name
#endif
#define WHOCPY(dest, src) \
SIGAR_SSTRCPY(dest, src); \
if (sizeof(src) < sizeof(dest)) \
dest[sizeof(src)] = '\0'
static int sigar_who_utmp(sigar_t *sigar,
sigar_who_list_t *wholist)
{
FILE *fp;
#ifdef __sun
struct utmpx ut;
#else
struct utmp ut;
#endif
if (!(fp = fopen(SIGAR_UTMP_FILE, "r"))) {
return errno;
}
while (fread(&ut, sizeof(ut), 1, fp) == 1) {
sigar_who_t *who;
if (*ut.ut_name == '\0') {
continue;
}
#ifdef USER_PROCESS
if (ut.ut_type != USER_PROCESS) {
continue;
}
#endif
SIGAR_WHO_LIST_GROW(wholist);
who = &wholist->data[wholist->number++];
WHOCPY(who->user, ut.ut_user);
WHOCPY(who->device, ut.ut_line);
WHOCPY(who->host, ut.ut_host);
who->time = ut.ut_time;
}
fclose(fp);
return SIGAR_OK;
}
#ifdef WIN32
#include <lm.h>
@ -925,6 +1007,9 @@ SIGAR_DECLARE(int) sigar_who_list_get(sigar_t *sigar,
sigar_who_registry(sigar, wholist);
/* cygwin ssh */
sigar_who_utmp(sigar, wholist);
return SIGAR_OK;
}
@ -949,68 +1034,19 @@ SIGAR_DECLARE(int) sigar_resource_limit_get(sigar_t *sigar,
}
#else
#ifdef __sun
# include <utmpx.h>
# define SIGAR_UTMP_FILE _UTMPX_FILE
# define ut_time ut_tv.tv_sec
#else
# include <utmp.h>
# ifdef UTMP_FILE
# define SIGAR_UTMP_FILE UTMP_FILE
# else
# define SIGAR_UTMP_FILE _PATH_UTMP
# endif
#endif
#if defined(__FreeBSD__) || defined(DARWIN)
# define ut_user ut_name
#endif
#define WHOCPY(dest, src) \
SIGAR_SSTRCPY(dest, src); \
if (sizeof(src) < sizeof(dest)) \
dest[sizeof(src)] = '\0'
int sigar_who_list_get(sigar_t *sigar,
sigar_who_list_t *wholist)
{
FILE *fp;
#ifdef __sun
struct utmpx ut;
#else
struct utmp ut;
#endif
if (!(fp = fopen(SIGAR_UTMP_FILE, "r"))) {
return errno;
}
int status;
sigar_who_list_create(wholist);
while (fread(&ut, sizeof(ut), 1, fp) == 1) {
sigar_who_t *who;
if (*ut.ut_name == '\0') {
continue;
status = sigar_who_utmp(sigar, wholist);
if (status != SIGAR_OK) {
sigar_who_list_destroy(sigar, wholist);
return status;
}
#ifdef USER_PROCESS
if (ut.ut_type != USER_PROCESS) {
continue;
}
#endif
SIGAR_WHO_LIST_GROW(wholist);
who = &wholist->data[wholist->number++];
WHOCPY(who->user, ut.ut_user);
WHOCPY(who->device, ut.ut_line);
WHOCPY(who->host, ut.ut_host);
who->time = ut.ut_time;
}
fclose(fp);
return SIGAR_OK;
}