Hax's string stuff in its own repo, no more copying it everywhereHEADmaster

5 files changed, 333 insertions, 0 deletions

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..22f6201
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,4 @@
+.makeopts
+*.o
+*.so
+*.a
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..724e119
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,116 @@
+# Makefile for hax's string stuff
+#
+# Written by: Test_User <hax@andrewyu.org>
+#
+# This is free and unencumbered software released into the public
+# domain.
+#
+# Anyone is free to copy, modify, publish, use, compile, sell, or
+# distribute this software, either in source code form or as a compiled
+# binary, for any purpose, commercial or non-commercial, and by any
+# means.
+#
+# In jurisdictions that recognize copyright laws, the author or authors
+# of this software dedicate any and all copyright interest in the
+# software to the public domain. We make this dedication for the benefit
+# of the public at large and to the detriment of our heirs and
+# successors. We intend this dedication to be an overt act of
+# relinquishment in perpetuity of all present and future rights to this
+# software under copyright law.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+# IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+# OTHER DEALINGS IN THE SOFTWARE.
+
+ORIGINAL_CFLAGS := $(CFLAGS)
+ORIGINAL_LDFLAGS := $(LDFLAGS)
+
+INCLUDEFLAGS =
+
+LDFLAGS =
+
+.makeopts:
+	> .makeopts
+	printf '%s\n' 'LAST_SAFE_STACK = $(SAFE_STACK)' >> .makeopts
+	printf '%s\n' 'LAST_CFLAGS = $(ORIGINAL_CFLAGS)' >> .makeopts
+	printf '%s\n' 'LAST_LDFLAGS = $(ORIGINAL_LDFLAGS)' >> .makeopts
+	printf '%s\n' 'LAST_CC = $(CC)' >> .makeopts
+
+$(shell [ -e .makeopts ] || > .makeopts)
+
+include .makeopts
+
+rebuild = 0
+
+# tabs not allowed :(
+ifneq ($(SAFE_STACK),)
+ifneq ($(SAFE_STACK),$(LAST_SAFE_STACK))
+rebuild = 1
+endif
+else
+SAFE_STACK := $(LAST_SAFE_STACK)
+endif
+
+ifneq ($(ORIGINAL_CFLAGS),)
+ifneq ($(ORIGINAL_CFLAGS),$(LAST_CFLAGS))
+rebuild = 1
+endif
+else
+ORIGINAL_CFLAGS := $(LAST_CFLAGS)
+CFLAGS += $(LAST_CFLAGS)
+endif
+
+ifneq ($(ORIGINAL_LDFLAGS),)
+ifneq ($(ORIGINAL_LDFLAGS),$(LAST_LDFLAGS))
+rebuild = 1
+endif
+else
+ORIGINAL_LDFLAGS := $(LAST_LDFLAGS)
+LDFLAGS += $(LAST_LDFLAGS)
+endif
+
+ifneq ($(CC),)
+ifneq ($(CC),$(LAST_CC))
+rebuild = 1
+endif
+else
+CC := $(LAST_CC)
+endif
+
+ifeq ($(rebuild),1)
+.PHONY: .makeopts
+endif
+
+CFLAGS += $(INCLUDEFLAGS) -fPIC -fno-plt -D_REENTRANT -ggdb3 -Wall -Wextra -Wsign-conversion -Wno-unknown-warning-option -Wno-unused-parameter -Wno-implicit-fallthrough -Wno-alloc-size -std=gnu99
+
+ifeq ($(SAFE_STACK),1)
+CFLAGS += -fstack-check
+endif
+
+
+
+DEPS = $(shell $(CC) $(CFLAGS) -M -MT $(1).$(2) $(1).c | sed 's_\\$$__') .makeopts Makefile
+
+
+.PHONY: all clean
+all: libhax_string_utils.a libhax_string_utils.so
+
+%.o: %.c
+	$(CC) $(CFLAGS) -c $< -o $@
+
+lib%.so: %.o
+	$(LD) $(LDFLAGS) -shared $< -o $@
+
+lib%.a: %.o
+	$(AR) rcs $@ $<
+
+$(call DEPS,hax_string_utils,o)
+
+clean:
+	for file in `find . -name '*.so'`; do $(RM) $$file; done
+	for file in `find . -name '*.o'`; do $(RM) $$file; done
+	for file in `find . -name '*.a'`; do $(RM) $$file; done
diff --git a/hax_string.h b/hax_string.h
new file mode 100644
index 0000000..f0c3947
--- /dev/null
+++ b/hax_string.h
@@ -0,0 +1,45 @@
+// Hax's strings
+//
+// Written by: Test_User <hax@andrewyu.org>
+//
+// This is free and unencumbered software released into the public
+// domain.
+//
+// Anyone is free to copy, modify, publish, use, compile, sell, or
+// distribute this software, either in source code form or as a compiled
+// binary, for any purpose, commercial or non-commercial, and by any
+// means.
+//
+// In jurisdictions that recognize copyright laws, the author or authors
+// of this software dedicate any and all copyright interest in the
+// software to the public domain. We make this dedication for the benefit
+// of the public at large and to the detriment of our heirs and
+// successors. We intend this dedication to be an overt act of
+// relinquishment in perpetuity of all present and future rights to this
+// software under copyright law.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+// IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+// OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+// OTHER DEALINGS IN THE SOFTWARE.
+
+#pragma once
+
+#include <stddef.h>
+#include <string.h>
+#include <unistd.h>
+
+struct string {
+	char *data;
+	size_t len;
+};
+
+#define STRING(x) (struct string){x, sizeof(x)-1}
+#define NULSTR(x) (struct string){x, strlen(x)}
+
+#define STRING_EQ(x, y) ((x).len == (y).len && memcmp((x).data, (y).data, (x).len) == 0)
+
+#define WRITES(x, y) write((x), (y).data, (y).len)
diff --git a/hax_string_utils.c b/hax_string_utils.c
new file mode 100644
index 0000000..5112c0c
--- /dev/null
+++ b/hax_string_utils.c
@@ -0,0 +1,130 @@
+// Hax's string utils
+//
+// Written by: Test_User <hax@andrewyu.org>
+//
+// This is free and unencumbered software released into the public
+// domain.
+//
+// Anyone is free to copy, modify, publish, use, compile, sell, or
+// distribute this software, either in source code form or as a compiled
+// binary, for any purpose, commercial or non-commercial, and by any
+// means.
+//
+// In jurisdictions that recognize copyright laws, the author or authors
+// of this software dedicate any and all copyright interest in the
+// software to the public domain. We make this dedication for the benefit
+// of the public at large and to the detriment of our heirs and
+// successors. We intend this dedication to be an overt act of
+// relinquishment in perpetuity of all present and future rights to this
+// software under copyright law.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+// IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+// OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+// OTHER DEALINGS IN THE SOFTWARE.
+
+#include <stddef.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "hax_string.h"
+#include "hax_string_utils.h"
+
+size_t str_to_unsigned(struct string str, char *err) {
+	if (str.len == 0) {
+		*err = 1;
+		return 0;
+	}
+
+	size_t val = 0;
+	while (str.len > 0) {
+		switch(str.data[0]) {
+		case '0':
+		case '1':
+		case '2':
+		case '3':
+		case '4':
+		case '5':
+		case '6':
+		case '7':
+		case '8':
+		case '9':
+			if (val > ((size_t)-1)/10) {
+				*err = 1;
+				return 0;
+			}
+			val *= 10;
+			if (val > (-((size_t)((unsigned char)str.data[0] - 0x30) + 1))) {
+				*err = 1;
+				return 0;
+			}
+			val += (unsigned char)str.data[0] - 0x30;
+			break;
+		default:
+			*err = 1;
+			return 0;
+		}
+
+		str.data++;
+		str.len--;
+	}
+
+	*err = 0;
+	return val;
+}
+
+int unsigned_to_str(size_t number, struct string *str) {
+	size_t len = 0;
+	{
+		size_t tmp = number;
+		do {
+			len++;
+		} while ((tmp = tmp / 10) != 0);
+	}
+
+	void *tmp = malloc(len);
+	if (!tmp)
+		return 1;
+
+	str->data = tmp;
+	str->len = len;
+
+	for (size_t i = len; i > 0; i--) {
+		str->data[i - 1] = (char)((number % 10) + 0x30);
+		number = number / 10;
+	}
+
+	return 0;
+}
+
+int str_clone(struct string *dest, struct string source) {
+	dest->data = malloc(source.len);
+	if (!dest->data)
+		return 1;
+	memcpy(dest->data, source.data, source.len);
+	dest->len = source.len;
+
+	return 0;
+}
+
+int str_combine(struct string *dest, size_t count, struct string *sources) {
+	size_t len = 0;
+	for (size_t i = 0; i < count; i++)
+		len += sources[i].len;
+
+	dest->data = malloc(len);
+	if (!dest->data && len != 0)
+		return 1;
+	dest->len = len;
+
+	size_t offset = 0;
+	for (size_t i = 0; i < count; i++) {
+		memcpy(&(dest->data[offset]), sources[i].data, sources[i].len);
+		offset += sources[i].len;
+	}
+
+	return 0;
+}
diff --git a/hax_string_utils.h b/hax_string_utils.h
new file mode 100644
index 0000000..f0e067e
--- /dev/null
+++ b/hax_string_utils.h
@@ -0,0 +1,38 @@
+// Header for hax's string utils
+//
+// Written by: Test_User <hax@andrewyu.org>
+//
+// This is free and unencumbered software released into the public
+// domain.
+//
+// Anyone is free to copy, modify, publish, use, compile, sell, or
+// distribute this software, either in source code form or as a compiled
+// binary, for any purpose, commercial or non-commercial, and by any
+// means.
+//
+// In jurisdictions that recognize copyright laws, the author or authors
+// of this software dedicate any and all copyright interest in the
+// software to the public domain. We make this dedication for the benefit
+// of the public at large and to the detriment of our heirs and
+// successors. We intend this dedication to be an overt act of
+// relinquishment in perpetuity of all present and future rights to this
+// software under copyright law.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+// IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+// OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+// OTHER DEALINGS IN THE SOFTWARE.
+
+#pragma once
+
+#include <stddef.h>
+#include "hax_string.h"
+
+size_t str_to_unsigned(struct string str, char *err);
+int unsigned_to_str(size_t number, struct string *str);
+
+int str_clone(struct string *dest, struct string source);
+int str_combine(struct string *dest, size_t count, struct string *sources);