new upstream release (3.3.0); modify package compatibility for Stretch

[ossec-hids.git] / src / rootcheck / unix-process.c

diff --git a/src/rootcheck/unix-process.c b/src/rootcheck/unix-process.c
old mode 100755 (executable)
new mode 100644 (file)
index 3b873d3..9bc753a
--- a/src/rootcheck/unix-process.c
+++ b/src/rootcheck/unix-process.c
@@ -1,6 +1,3 @@
-/* @(#) $Id: ./src/rootcheck/unix-process.c, 2011/09/08 dcid Exp $
- */
-
 /* Copyright (C) 2009 Trend Micro Inc.
  * All right reserved.
  *
@@ -8,139 +5,111 @@
  * and/or modify it under the terms of the GNU General Public
  * License (version 2) as published by the FSF - Free Software
  * Foundation
- *
- * License details at the LICENSE file included with OSSEC or
- * online at: http://www.ossec.net/main/license/ .
  */
 
-
 #include "shared.h"
 #include "rootcheck.h"
 
+
 #ifndef WIN32
 
-char *_os_get_runps(char *ps, int mpid)
+static char *_os_get_runps(const char *ps, int mpid)
 {
     char *tmp_str, *nbuf;
-    char buf[OS_SIZE_2048 +1];
-    char command[OS_SIZE_1024 +1];
+    char buf[OS_SIZE_2048 + 1];
+    char command[OS_SIZE_1024 + 1];
     FILE *fp;
 
-
     buf[0] = '\0';
     command[0] = '\0';
     command[OS_SIZE_1024] = '\0';
 
-
     snprintf(command, OS_SIZE_1024, "%s -p %d 2> /dev/null", ps, mpid);
-
     fp = popen(command, "r");
-    if(fp)
-    {
-        while(fgets(buf, OS_SIZE_2048, fp) != NULL)
-        {
+    if (fp) {
+        while (fgets(buf, OS_SIZE_2048, fp) != NULL) {
             tmp_str = strchr(buf, ':');
-            if(!tmp_str)
-            {
+            if (!tmp_str) {
                 continue;
             }
 
             nbuf = tmp_str++;
 
             tmp_str = strchr(nbuf, ' ');
-            if(!tmp_str)
-            {
+            if (!tmp_str) {
                 continue;
             }
             tmp_str++;
 
-
-            /* Removing white spaces. */
-            while(*tmp_str == ' ')
-                 tmp_str++;
-
+            /* Remove whitespaces */
+            while (*tmp_str == ' ') {
+                tmp_str++;
+            }
 
             nbuf = tmp_str;
 
-
             tmp_str = strchr(nbuf, '\n');
-            if(tmp_str)
-            {
+            if (tmp_str) {
                 *tmp_str = '\0';
             }
 
             pclose(fp);
-            return(strdup(nbuf));
+            return (strdup(nbuf));
         }
 
         pclose(fp);
     }
 
-    return(NULL);
+    return (NULL);
 }
 
-
-
-/* os_get_unix_process_list: Get list of Unix processes */
-void *os_get_process_list()
+/* Get list of Unix processes */
+OSList *os_get_process_list()
 {
     int i = 1;
     pid_t max_pid = MAX_PID;
     OSList *p_list = NULL;
+    char ps[OS_SIZE_1024 + 1];
 
-    char ps[OS_SIZE_1024 +1];
-
-
-    /* Checking where ps is */
-    memset(ps, '\0', OS_SIZE_1024 +1);
+    /* Check where ps is */
+    memset(ps, '\0', OS_SIZE_1024 + 1);
     strncpy(ps, "/bin/ps", OS_SIZE_1024);
-    if(!is_file(ps))
-    {
+    if (!is_file(ps)) {
         strncpy(ps, "/usr/bin/ps", OS_SIZE_1024);
-        if(!is_file(ps))
-        {
+        if (!is_file(ps)) {
             merror("%s: ERROR: 'ps' not found.", ARGV0);
-            return(NULL);
+            return (NULL);
         }
     }
 
-
-    /* Creating process list */
+    /* Create process list */
     p_list = OSList_Create();
-    if(!p_list)
-    {
+    if (!p_list) {
         merror(LIST_ERROR, ARGV0);
-        return(NULL);
+        return (NULL);
     }
 
+    for (i = 1; i <= max_pid; i++) {
+        /* Check if the pid is present */
+        if ((!((getsid(i) == -1) && (errno == ESRCH))) &&
+                (!((getpgid(i) == -1) && (errno == ESRCH)))) {
+            Proc_Info *p_info;
+            char *p_name;
 
+            p_name = _os_get_runps(ps, (int)i);
+            if (!p_name) {
+                continue;
+            }
 
-    for(i = 1; i<= max_pid; i++)
-    {
-        /* Checking if the pid is present. */
-        if((!((getsid(i) == -1)&&(errno == ESRCH))) &&
-          (!((getpgid(i) == -1)&&(errno == ESRCH))))
-         {
-             Proc_Info *p_info;
-             char *p_name;
-
-             p_name = _os_get_runps(ps, (int)i);
-             if(!p_name)
-             {
-                 continue;
-             }
-
-             os_calloc(1, sizeof(Proc_Info), p_info);
-             p_info->p_path = p_name;
-             p_info->p_name = NULL;
-             OSList_AddData(p_list, p_info);
-         }
+            os_calloc(1, sizeof(Proc_Info), p_info);
+            p_info->p_path = p_name;
+            p_info->p_name = NULL;
+            OSList_AddData(p_list, p_info);
+        }
     }
 
-    return((void *)p_list);
+    return (p_list);
 }
 
+#endif /* WIN32 */
 
-#endif
-
-/* EOF */