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freebsd-ports/net-mgmt/net-snmp-devel/files/patch-hr_swrun.c
Jun Kuriyama 53f369dcd5 Add work around not to dumps core to access host resources. 
Sorry for my commit bloat...
2001-02-02 02:39:45 +00:00

309 lines
8.9 KiB
C
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--- agent/mibgroup/host/hr_swrun.c.orig Tue Oct 3 13:36:38 2000
+++ agent/mibgroup/host/hr_swrun.c Fri Feb 2 11:27:39 2001
@@ -216,15 +216,15 @@
if ( pid == -1 )
break;
newname[HRSWRUN_ENTRY_NAME_LENGTH] = pid;
- DEBUGMSGOID(("host/hr_swrun", newname, *length));
- DEBUGMSG(("host/hr_swrun","\n"));
+ DEBUGMSGOID(("host/hr_swrun", newname, *length));
+ DEBUGMSG(("host/hr_swrun","\n"));
result = snmp_oid_compare(name, *length, newname, vp->namelen + 1);
if (exact && (result == 0)) {
LowPid = pid;
#ifndef linux
LowProcIndex = current_proc_entry-1;
#endif
-DEBUGMSGTL(("host/hr_swrun", " saved\n"));
+ DEBUGMSGTL(("host/hr_swrun", " saved\n"));
/* Save process status information */
break;
}
@@ -235,9 +235,9 @@
LowProcIndex = current_proc_entry-1;
#endif
/* Save process status information */
-DEBUGMSG(("host/hr_swrun", " saved"));
+ DEBUGMSG(("host/hr_swrun", " saved"));
}
-DEBUGMSG(("host/hr_swrun", "\n"));
+ DEBUGMSG(("host/hr_swrun", "\n"));
}
if ( LowPid == -1 ) {
@@ -279,16 +279,16 @@
#elif defined(solaris2)
#if _SLASH_PROC_METHOD_
static psinfo_t psinfo;
- static psinfo_t *proc_buf = &psinfo;
+ static psinfo_t *proc_buf;
int procfd;
char procfn[sizeof "/proc/00000/psinfo"];
#else
static struct proc *proc_buf;
+ char *cp1;
#endif /* _SLASH_PROC_METHOD_ */
static time_t when = 0;
time_t now;
static int oldpid = -1;
- char *cp1;
#endif
#if HAVE_KVM_GETPROCS
char **argv;
@@ -321,10 +321,13 @@
}
if (oldpid != pid || proc_buf == NULL) {
#if _SLASH_PROC_METHOD_
+ proc_buf = &psinfo;
sprintf(procfn, "/proc/%.5d/psinfo", pid);
- if ((procfd = open(procfn, O_RDONLY)) == -1) return NULL;
- if (read(procfd, proc_buf, sizeof(*proc_buf)) != sizeof(*proc_buf)) abort();
- close(procfd);
+ if ((procfd = open(procfn, O_RDONLY)) != -1) {
+ if (read(procfd, proc_buf, sizeof(*proc_buf)) != sizeof(*proc_buf)) abort();
+ close(procfd);
+ } else
+ proc_buf = NULL;
#else
if (kd == NULL) return NULL;
if ((proc_buf = kvm_getproc(kd, pid)) == NULL) return NULL;
@@ -340,8 +343,8 @@
return NULL;
#else
long_return = 1; /* Probably! */
-#endif
return (u_char *)&long_return;
+#endif
case HRSWRUN_INDEX:
long_return = pid;
@@ -354,12 +357,19 @@
*cp = '\0';
#elif defined(solaris2)
#if _SLASH_PROC_METHOD_
- strcpy(string, proc_buf->pr_fname);
+ if (proc_buf)
+ strcpy(string, proc_buf->pr_fname);
+ else
+ strcpy(string, "<exited>");
#else
strcpy(string, proc_buf->p_user.u_comm);
#endif
#elif HAVE_KVM_GETPROCS
+#if defined(freebsd5) && __FreeBSD_version >= 500014
+ strcpy(string, proc_table[LowProcIndex].ki_comm);
+#else
strcpy(string, proc_table[LowProcIndex].kp_proc.p_comm);
+#endif
#elif defined(linux)
sprintf( string, "/proc/%d/status", pid );
if ((fp = fopen( string, "r")) == NULL) return NULL;
@@ -398,7 +408,10 @@
*cp = '\0';
#elif defined(solaris2)
#ifdef _SLASH_PROC_METHOD_
- strcpy(string, proc_buf->pr_psargs);
+ if (proc_buf)
+ strcpy(string, proc_buf->pr_psargs);
+ else
+ sprintf(string, "<exited>");
cp = strchr(string, ' ');
if (cp) *cp = 0;
#else
@@ -408,7 +421,11 @@
*cp1 = 0;
#endif
#elif HAVE_KVM_GETPROCS
+#if defined(freebsd5) && __FreeBSD_version >= 500014
+ strcpy(string, proc_table[LowProcIndex].ki_comm);
+#else
strcpy(string, proc_table[LowProcIndex].kp_proc.p_comm);
+#endif
#elif defined(linux)
sprintf( string, "/proc/%d/cmdline", pid );
if ((fp = fopen( string, "r")) == NULL) return NULL;
@@ -448,9 +465,12 @@
string[0] = '\0';
#elif defined(solaris2)
#ifdef _SLASH_PROC_METHOD_
- cp = strchr(proc_buf->pr_psargs, ' ');
- if (cp) strcpy(string, cp+1);
- else string[0] = 0;
+ if (proc_buf) {
+ cp = strchr(proc_buf->pr_psargs, ' ');
+ if (cp) strcpy(string, cp+1);
+ else string[0] = 0;
+ } else
+ string[0] = 0;
#else
cp = proc_buf->p_user.u_psargs;
while (*cp && *cp != ' ') cp++;
@@ -470,9 +490,15 @@
sprintf( string, "/proc/%d/cmdline", pid );
if ((fp = fopen( string, "r")) == NULL) return NULL;
memset( buf, 0, sizeof(buf) );
- if(!fgets( buf, sizeof(buf)-2, fp ))
- return NULL; /* argv[0] '\0' argv[1] '\0' .... */
+ /* argv[0] '\0' argv[1] '\0' .... */
+ if(!fgets( buf, sizeof(buf)-2, fp )) {
+ /* maybe be empty (even argv[0] is missing) */
+ string[0] = '\0';
+ *var_len = 0;
+ return string;
+ }
+
/* Skip over argv[0] */
cp = buf;
while ( *cp )
@@ -531,10 +557,14 @@
}
#else
#if HAVE_KVM_GETPROCS
+#if defined(freebsd5) && __FreeBSD_version >= 500014
+ switch ( proc_table[LowProcIndex].ki_stat ) {
+#else
switch ( proc_table[LowProcIndex].kp_proc.p_stat ) {
+#endif
#elif defined(solaris2)
#if _SLASH_PROC_METHOD_
- switch (proc_buf->pr_lwp.pr_state) {
+ switch (proc_buf ? proc_buf->pr_lwp.pr_state : SIDL) {
#else
switch ( proc_buf->p_stat ) {
#endif
@@ -566,32 +596,34 @@
#endif
#else
sprintf( string, "/proc/%d/stat", pid );
- if ((fp = fopen( string, "r")) == NULL) return NULL;
- fgets( buf, sizeof(buf), fp );
- cp = buf;
- for ( i = 0 ; i < 2 ; ++i ) { /* skip two fields */
- while ( *cp != ' ')
+ if ((fp = fopen( string, "r")) != NULL) {
+ fgets( buf, sizeof(buf), fp );
+ cp = buf;
+ for ( i = 0 ; i < 2 ; ++i ) { /* skip two fields */
+ while ( *cp != ' ')
+ ++cp;
++cp;
- ++cp;
- }
+ }
- switch ( *cp ) {
- case 'R':
+ switch ( *cp ) {
+ case 'R':
long_return = 1; /* running */
break;
- case 'S':
+ case 'S':
long_return = 2; /* runnable */
break;
- case 'D':
- case 'T':
+ case 'D':
+ case 'T':
long_return = 3; /* notRunnable */
break;
- case 'Z':
- default:
+ case 'Z':
+ default:
long_return = 4; /* invalid */
break;
- }
- fclose(fp);
+ }
+ fclose(fp);
+ } else
+ long_return = 4; /* invalid */
#endif
return (u_char *)&long_return;
@@ -603,16 +635,24 @@
*/
#elif defined(solaris2)
#if _SLASH_PROC_METHOD_
- long_return = proc_buf->pr_time.tv_sec * 100 +
- proc_buf->pr_time.tv_nsec/10000000;
+ long_return = proc_buf ? proc_buf->pr_time.tv_sec * 100 +
+ proc_buf->pr_time.tv_nsec/10000000 : 0;
#else
long_return = proc_buf->p_utime*100 +
proc_buf->p_stime*100;
#endif
#elif HAVE_KVM_GETPROCS
+#if defined(freebsd5) && __FreeBSD_version >= 500014
+ /* XXX: Accessing ki_paddr causes sig10 ...
+ long_return = proc_table[LowProcIndex].ki_paddr->p_uticks +
+ proc_table[LowProcIndex].ki_paddr->p_sticks +
+ proc_table[LowProcIndex].ki_paddr->p_iticks; */
+ long_return = 0;
+#else
long_return = proc_table[LowProcIndex].kp_proc.p_uticks +
proc_table[LowProcIndex].kp_proc.p_sticks +
proc_table[LowProcIndex].kp_proc.p_iticks;
+#endif
#elif defined(linux)
sprintf( string, "/proc/%d/stat", pid );
if ((fp = fopen( string, "r")) == NULL) return NULL;
@@ -645,13 +685,20 @@
long_return = (proc_buf.pst_rssize << PGSHIFT)/1024;
#elif defined(solaris2)
#if _SLASH_PROC_METHOD_
- long_return = proc_buf->pr_rssize;
+ long_return = proc_buf ? proc_buf->pr_rssize : 0;
#else
long_return = proc_buf->p_swrss;
#endif
#elif HAVE_KVM_GETPROCS
-#ifdef freebsd3
+#if defined(freebsd3)
long_return = proc_table[LowProcIndex].kp_eproc.e_vm.vm_map.size/1024;
+#elif defined(freebsd5) && __FreeBSD_version >= 500014
+ /* XXX
+ long_return = proc_table[LowProcIndex].ki_vmspace->vm_tsize +
+ proc_table[LowProcIndex].ki_vmspace->vm_ssize +
+ proc_table[LowProcIndex].ki_vmspace->vm_dsize;
+ long_return = long_return * (getpagesize() / 1024); */
+ long_return = 0;
#else
long_return = proc_table[LowProcIndex].kp_eproc.e_vm.vm_tsize +
proc_table[LowProcIndex].kp_eproc.e_vm.vm_ssize +
@@ -747,6 +794,10 @@
}
#elif HAVE_KVM_GETPROCS
{
+ if (kd == NULL) {
+ nproc = 0;
+ return;
+ }
proc_table = kvm_getprocs(kd, KERN_PROC_ALL, 0, &nproc);
}
#else
@@ -794,8 +845,13 @@
#elif defined(solaris2)
return proc_table[current_proc_entry++];
#elif HAVE_KVM_GETPROCS
+#if defined(freebsd5) && __FreeBSD_version >= 500014
+ if ( proc_table[current_proc_entry].ki_stat != 0 )
+ return proc_table[current_proc_entry++].ki_pid;
+#else
if ( proc_table[current_proc_entry].kp_proc.p_stat != 0 )
return proc_table[current_proc_entry++].kp_proc.p_pid;
+#endif
#else
if ( proc_table[current_proc_entry].p_stat != 0 )
return proc_table[current_proc_entry++].p_pid;
@@ -853,7 +909,7 @@
int count_processes (void)
{
-#ifndef linux
+#if !(defined(linux) || defined(hpux10) || defined(solaris2) || HAVE_KVM_GETPROCS)
int i;
#endif
int total=0;
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