posix adding posix_pathconf.

to get configuration variables from a directory/file.
Closes GH-10238.

Author: devnexen

NEWS

@@ -64,6 +64,7 @@ PHP                                                                        NEWS
 
 - Posix:
   . Added posix_sysconf. (David Carlier)
+  . Added posix_pathconf. (David Carlier)
 
 - Random:
   . Added Randomizer::getBytesFromString(). (Joshua Rüsweg)

UPGRADING

@@ -71,6 +71,7 @@ PHP 8.3 UPGRADE NOTES
 
 - Posix:
   . Added posix_sysconf call to get runtime informations.
+  . Added posix_pathconf call to get configuration value from a directory/file.
 
 - Random:
   . Added Randomizer::getBytesFromString().

ext/posix/posix.c

@@ -1196,3 +1196,28 @@ PHP_FUNCTION(posix_sysconf)
 
 	RETURN_LONG(sysconf(conf_id));
 }
+
+PHP_FUNCTION(posix_pathconf)
+{
+	zend_long name, ret;
+	char *path;
+	size_t path_len;
+
+	ZEND_PARSE_PARAMETERS_START(2, 2)
+		Z_PARAM_STRING(path, path_len)
+		Z_PARAM_LONG(name);
+	ZEND_PARSE_PARAMETERS_END();
+
+	if (path_len == 0) {
+		RETURN_FALSE;
+	}
+
+	ret = pathconf(path, name);
+
+	if (ret < 0 && errno != 0) {
+		POSIX_G(last_error) = errno;
+		RETURN_FALSE;
+	}
+
+	RETURN_LONG(ret);
+}

ext/posix/posix.stub.php

@@ -219,6 +219,76 @@
  */
 const POSIX_SC_NPROCESSORS_ONLN = UNKNOWN;
 #endif
+#ifdef _PC_LINK_MAX
+/**
+ * @var int
+ * @cvalue _PC_LINK_MAX
+ */
+const POSIX_PC_LINK_MAX = UNKNOWN;
+#endif
+#ifdef _PC_MAX_CANON
+/**
+ * @var int
+ * @cvalue _PC_MAX_CANON
+ */
+const POSIX_PC_MAX_CANON = UNKNOWN;
+#endif
+#ifdef _PC_MAX_INPUT
+/**
+ * @var int
+ * @cvalue _PC_MAX_INPUT
+ */
+const POSIX_PC_MAX_INPUT = UNKNOWN;
+#endif
+#ifdef _PC_NAME_MAX
+/**
+ * @var int
+ * @cvalue _PC_NAME_MAX
+ */
+const POSIX_PC_NAME_MAX = UNKNOWN;
+#endif
+#ifdef _PC_PATH_MAX
+/**
+ * @var int
+ * @cvalue _PC_PATH_MAX
+ */
+const POSIX_PC_PATH_MAX = UNKNOWN;
+#endif
+#ifdef _PC_PIPE_BUF
+/**
+ * @var int
+ * @cvalue _PC_PIPE_BUF
+ */
+const POSIX_PC_PIPE_BUF = UNKNOWN;
+#endif
+#ifdef _PC_CHOWN_RESTRICTED
+/**
+ * @var int
+ * @cvalue _PC_CHOWN_RESTRICTED
+ */
+const POSIX_PC_CHOWN_RESTRICTED = UNKNOWN;
+#endif
+#ifdef _PC_NO_TRUNC
+/**
+ * @var int
+ * @cvalue _PC_NO_TRUNC
+ */
+const POSIX_PC_NO_TRUNC = UNKNOWN;
+#endif
+#ifdef _PC_ALLOC_SIZE_MIN
+/**
+ * @var int
+ * @cvalue _PC_ALLOC_SIZE_MIN
+ */
+const POSIX_PC_ALLOC_SIZE_MIN = UNKNOWN;
+#endif
+#ifdef _PC_SYMLINK_MAX
+/**
+ * @var int
+ * @cvalue _PC_SYMLINK_MAX
+ */
+const POSIX_PC_SYMLINK_MAX = UNKNOWN;
+#endif
 
 function posix_kill(int $process_id, int $signal): bool {}
 
@@ -357,3 +427,5 @@ function posix_initgroups(string $username, int $group_id): bool {}
 #endif
 
 function posix_sysconf(int $conf_id): int {}
+
+function posix_pathconf(string $path, int $name): int|false {}

ext/posix/posix_arginfo.h

@@ -0,0 +1,16 @@
+--TEST--
+Test posix_pathconf
+--EXTENSIONS--
+posix
+--FILE--
+<?php
+var_dump(posix_pathconf('', POSIX_PC_PATH_MAX));
+var_dump(posix_pathconf(str_repeat('non_existent', 4096), POSIX_PC_NAME_MAX));
+var_dump(posix_errno() != 0);
+var_dump(posix_pathconf(sys_get_temp_dir(), POSIX_PC_PATH_MAX));
+?>
+--EXPECTF--
+bool(false)
+bool(false)
+bool(true)
+int(%d)