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77be88 |
diff -urNp a/agent/mibgroup/host/hrh_filesys.c b/agent/mibgroup/host/hrh_filesys.c
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--- a/agent/mibgroup/host/hrh_filesys.c 2021-06-09 10:30:07.744455758 +0200
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+++ b/agent/mibgroup/host/hrh_filesys.c 2021-06-09 10:32:50.657160232 +0200
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@@ -219,6 +219,7 @@ var_hrhfilesys(struct variable *vp,
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{
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int fsys_idx;
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static char *string;
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+ static char empty_str[1];
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fsys_idx =
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header_hrhfilesys(vp, name, length, exact, var_len, write_method);
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@@ -235,7 +236,7 @@ var_hrhfilesys(struct variable *vp,
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*var_len = 0;
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if (asprintf(&string, "%s", HRFS_entry->path) >= 0)
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*var_len = strlen(string);
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- return (u_char *) string;
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+ return (u_char *)(string ? string : empty_str);
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case HRFSYS_RMOUNT:
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free(string);
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if (HRFS_entry->flags & NETSNMP_FS_FLAG_REMOTE) {
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@@ -245,7 +246,7 @@ var_hrhfilesys(struct variable *vp,
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string = strdup("");
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}
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*var_len = string ? strlen(string) : 0;
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- return (u_char *) string;
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+ return (u_char *)(string ? string : empty_str);
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77be88 |
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case HRFSYS_TYPE:
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fsys_type_id[fsys_type_len - 1] =
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diff -urNp a/agent/mibgroup/ucd-snmp/disk.c b/agent/mibgroup/ucd-snmp/disk.c
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--- a/agent/mibgroup/ucd-snmp/disk.c 2021-06-09 10:30:07.728455689 +0200
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+++ b/agent/mibgroup/ucd-snmp/disk.c 2021-06-09 10:34:32.722597366 +0200
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@@ -842,6 +842,7 @@ var_extensible_disk(struct variable *vp,
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struct dsk_entry entry;
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static long long_ret;
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static char *errmsg;
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+ static char empty_str[1];
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77be88 |
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int i;
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for (i = 0; i < numdisks; i++){
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@@ -950,7 +951,7 @@ tryAgain:
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*var_len = strlen(errmsg);
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}
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}
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- return (u_char *) (errmsg);
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+ return (u_char *)(errmsg ? errmsg : empty_str);
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}
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return NULL;
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77be88 |
}
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77be88 |
diff -urNp a/agent/mibgroup/ucd-snmp/disk_hw.c b/agent/mibgroup/ucd-snmp/disk_hw.c
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77be88 |
--- a/agent/mibgroup/ucd-snmp/disk_hw.c 2021-06-09 10:30:07.727455684 +0200
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77be88 |
+++ b/agent/mibgroup/ucd-snmp/disk_hw.c 2021-06-09 10:35:53.420943010 +0200
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@@ -314,6 +314,7 @@ var_extensible_disk(struct variable *vp,
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77be88 |
unsigned long long val;
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77be88 |
static long long_ret;
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static char *errmsg;
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+ static char empty_str[1];
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77be88 |
netsnmp_cache *cache;
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77be88 |
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77be88 |
/* Update the fsys H/W module */
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77be88 |
@@ -432,7 +433,7 @@ tryAgain:
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77be88 |
>= 0)) {
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77be88 |
*var_len = strlen(errmsg);
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77be88 |
}
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77be88 |
- return (u_char *) errmsg;
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77be88 |
+ return (u_char *)(errmsg ? errmsg : empty_str);
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77be88 |
}
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77be88 |
return NULL;
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77be88 |
}
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77be88 |
diff -urNp a/agent/mibgroup/ucd-snmp/proc.c b/agent/mibgroup/ucd-snmp/proc.c
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77be88 |
--- a/agent/mibgroup/ucd-snmp/proc.c 2021-06-09 10:30:07.725455676 +0200
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77be88 |
+++ b/agent/mibgroup/ucd-snmp/proc.c 2021-06-09 10:37:31.143361548 +0200
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77be88 |
@@ -267,7 +267,7 @@ var_extensible_proc(struct variable *vp,
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77be88 |
struct myproc *proc;
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77be88 |
static long long_ret;
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77be88 |
static char *errmsg;
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77be88 |
-
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77be88 |
+ static char empty_str[1];
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77be88 |
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77be88 |
if (header_simple_table
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77be88 |
(vp, name, length, exact, var_len, write_method, numprocs))
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77be88 |
@@ -330,7 +330,7 @@ var_extensible_proc(struct variable *vp,
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77be88 |
}
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77be88 |
}
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77be88 |
*var_len = errmsg ? strlen(errmsg) : 0;
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77be88 |
- return ((u_char *) errmsg);
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77be88 |
+ return (u_char *)(errmsg ? errmsg : empty_str);
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77be88 |
case ERRORFIX:
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77be88 |
*write_method = fixProcError;
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77be88 |
long_return = fixproc.result;
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