os2 process implementation for linux

core/os/os2/internal_util.odin

@@ -3,7 +3,8 @@ package os2
 
 import "base:intrinsics"
 import "base:runtime"
-
+import "core:fmt"
+import "core:strings"
 
 // Splits pattern by the last wildcard "*", if it exists, and returns the prefix and suffix
 // parts which are split by the last "*"
@@ -47,6 +48,16 @@ temp_cstring :: proc(s: string) -> (cstring, runtime.Allocator_Error) {
 	return clone_to_cstring(s, temp_allocator())
 }
 
+@(require_results)
+ctprintf :: proc(format: string, args: ..any, newline := false) -> cstring {
+	str: strings.Builder
+	strings.builder_init(&str, temp_allocator())
+	fmt.sbprintf(&str, format, ..args, newline=newline)
+	strings.write_byte(&str, 0)
+	s := strings.to_string(str)
+	return cstring(raw_data(s))
+}
+
 @(require_results)
 string_from_null_terminated_bytes :: proc(b: []byte) -> (res: string) {
 	s := string(b)
@@ -126,5 +137,3 @@ random_string :: proc(buf: []byte) -> string {
 	buf[i] = digits[u % b]
 	return string(buf[i:])
 }
-
-