fix(userspace/libsinsp): PT_MODE resize params string to the right value instead of doubling it

Signed-off-by: Lorenzo Fontana <[email protected]>

Author: fntlnz

driver/CMakeLists.txt

@@ -45,7 +45,6 @@ set(DRIVER_SOURCES
 	event_table.c
 	fillers_table.c
 	flags_table.c
-	modes_table.c
 	main.c
 	ppm.h
 	ppm_events.c

driver/flags_table.c

@@ -501,3 +501,19 @@ const struct ppm_name_value linkat_flags[] = {
 	{"AT_EMPTY_PATH", PPM_AT_EMPTY_PATH},
 	{0, 0},
 };
+
+const struct ppm_name_value chmod_mode[] = {
+    {"S_IXOTH", PPM_S_IXOTH},
+    {"S_IWOTH", PPM_S_IWOTH},
+    {"S_IROTH", PPM_S_IROTH},
+    {"S_IXGRP", PPM_S_IXGRP},
+    {"S_IWGRP", PPM_S_IWGRP},
+    {"S_IRGRP", PPM_S_IRGRP},
+    {"S_IXUSR", PPM_S_IXUSR},
+    {"S_IWUSR", PPM_S_IWUSR},
+    {"S_IRUSR", PPM_S_IRUSR},
+    {"S_ISVTX", PPM_S_ISVTX},
+    {"S_ISGID", PPM_S_ISGID},
+    {"S_ISUID", PPM_S_ISUID},
+    {0, 0},
+};

driver/modes_table.c

@@ -32,8 +32,7 @@ list(APPEND targetfiles
 	syscall_info_table.c
 	../../driver/dynamic_params_table.c
 	../../driver/event_table.c
-	../../driver/flags_table.c
-	../../driver/modes_table.c)
+	../../driver/flags_table.c)
 
 if(CMAKE_SYSTEM_NAME MATCHES "Linux")
 	list(APPEND targetfiles

userspace/libscap/CMakeLists.txt

@@ -2059,9 +2059,10 @@ const char* sinsp_evt::get_param_as_str(uint32_t id, OUT const char** resolved_s
 				if((mode->value == 0 && initial_val == 0) ||
 				   (mode->value != 0 && (val & mode->value) == mode->value && val != 0))
 				{
-					if(m_resolved_paramstr_storage.size() < j + strlen(separator) + strlen(mode->name))
+					size_t params_len = j + strlen(separator) + strlen(mode->name);
+					if(m_resolved_paramstr_storage.size() < params_len)
 					{
-						m_resolved_paramstr_storage.resize(m_resolved_paramstr_storage.size() * 2);
+						m_resolved_paramstr_storage.resize(params_len + 1);
 					}
 
 					j += snprintf(&m_resolved_paramstr_storage[j],