posix: add package

2026-08-06 23:58:50 +00:00 · 2024-08-14 01:44:35 +02:00
parent ac68a9d52c
commit efe68c2e24
83 changed files with 12665 additions and 328 deletions
@@ -0,0 +1,107 @@
+package posix
+
+import "core:c"
+
+when ODIN_OS == .Darwin {
+	foreign import lib "system:System.framework"
+} else {
+	foreign import lib "system:c"
+}
+
+// wordexp.h - word-expansion type
+
+foreign lib {
+	/*
+	Perform word expansion.
+
+	[[ More; https://pubs.opengroup.org/onlinepubs/9699919799/functions/wordexp.html ]]
+	*/
+	wordexp :: proc(words: cstring, pwordexp: ^wordexp_t, flags: WRDE_Flags) -> WRDE_Errno ---
+
+	/*
+	Free the space allocated during word expansion.
+
+	[[ More; https://pubs.opengroup.org/onlinepubs/9699919799/functions/wordexp.html ]]
+	*/
+	wordfree :: proc(pwordexp: ^wordexp_t) ---
+}
+
+WRDE_Flag_Bits :: enum c.int {
+	// Appends words to those previously generated.
+	APPEND  = log2(WRDE_APPEND),
+	// Number of null pointers to prepend to we_wordv.
+	DOOFFS  = log2(WRDE_DOOFFS),
+	// Fail if command substitution is requested.
+	NOCMD   = log2(WRDE_NOCMD),
+	// The pwordexp argument was passed to a previous successful call to wordexp(),
+	// and has not been passed to wordfree().
+	REUSE   = log2(WRDE_REUSE),
+	// Do not redirect stderr to /dev/null.
+	SHOWERR = log2(WRDE_SHOWERR),
+	// Report error on attempt to expand an undefined shell variable.
+	UNDEF   = log2(WRDE_UNDEF),
+}
+WRDE_Flags :: bit_set[WRDE_Flag_Bits; c.int]
+
+WRDE_Errno :: enum c.int {
+	OK      = 0,
+	// One of the unquoted characters- <newline>, '|', '&', ';', '<', '>', '(', ')', '{', '}' -
+	// appears in words in an inappropriate context.
+	BADCHAR = WRDE_BADCHAR,
+	// Reference to undefined shell variable when WRDE_UNDEF is set in flags.
+	BADVAL  = WRDE_BADVAL,
+	// Command substitution requested when WRDE_NOCMD was set in flags.
+	CMDSUB  = WRDE_CMDSUB,
+	// Attempt to allocate memory failed.
+	NOSPACE = WRDE_NOSPACE,
+	// Shell syntax error, such as unbalanced parentheses or an unterminated string.
+	SYNTAX  = WRDE_SYNTAX,
+}
+
+when ODIN_OS == .Darwin {
+
+	wordexp_t :: struct {
+		we_wordc: c.size_t,   /* [PSX] count of words matched by words */
+		we_wordv: [^]cstring, /* [PSX] pointer to list of expanded words */
+		we_offs:  c.size_t,   /* [PSX] slots to reserve at the beginning of we_wordv */
+	}
+
+	WRDE_APPEND  :: 0x01
+	WRDE_DOOFFS  :: 0x02
+	WRDE_NOCMD   :: 0x04
+	WRDE_REUSE   :: 0x08
+	WRDE_SHOWERR :: 0x10
+	WRDE_UNDEF   :: 0x20
+
+	WRDE_BADCHAR :: 1
+	WRDE_BADVAL  :: 2
+	WRDE_CMDSUB  :: 3
+	WRDE_NOSPACE :: 4
+	WRDE_SYNTAX  :: 6
+
+} else when ODIN_OS == .FreeBSD || ODIN_OS == .NetBSD || ODIN_OS == .OpenBSD {
+
+	wordexp_t :: struct {
+		we_wordc:   c.size_t,   /* [PSX] count of words matched by words */
+		we_wordv:   [^]cstring, /* [PSX] pointer to list of expanded words */
+		we_offs:    c.size_t,   /* [PSX] slots to reserve at the beginning of we_wordv */
+		we_strings: [^]byte,    /* storage for wordv strings */
+		we_nbytes:  c.size_t,   /* size of we_strings */
+	}
+
+	WRDE_APPEND  :: 0x01
+	WRDE_DOOFFS  :: 0x02
+	WRDE_NOCMD   :: 0x04
+	WRDE_REUSE   :: 0x08
+	WRDE_SHOWERR :: 0x10
+	WRDE_UNDEF   :: 0x20
+
+	WRDE_BADCHAR :: 1
+	WRDE_BADVAL  :: 2
+	WRDE_CMDSUB  :: 3
+	WRDE_NOSPACE :: 4
+	WRDE_SYNTAX  :: 6
+
+} else {
+	#panic("posix is unimplemented for the current target")
+}