Hello! I'm rather new to homebrew development (and using C++/C in general) and for some reason I cannot get libcurl to function. I copied over a snippet of code that I had already written using CURL but it wouldn't print out the text file like I wanted. Just to make sure I wasn't doing anything wrong programming wise, I went ahead and copied and pasted a simple example of libcurl I found online and I keep getting the same error. The file I'm linking to can be accessed through the 3DS web browser. I even tried replacing the url with Google but it STILL didn't work! I am not getting any compiler errors and the makefile should be configured properly. I also redownloaded the 3ds toolchain and I am still having this issue. I even tried compiling it as a C file instead of a C++ file in case that was causing it but as you probably guessed, it was pretty useless. I am using Windows (Specifically Windows 10) if that matters. Any help would be
GREATLY appreciated as I have wasted almost two days trying to get this to work properly.
This is the code with the 'simple.c' example:
Code: Select all
#include <stdio.h>
#include <curl/curl.h>
#include <3ds.h>
int main(int argc, const char* argv[]) {
//Initalize GFX
gfxInitDefault();
//Create print console objects.
PrintConsole topScreen, bottomScreen;
//Initialize the top and bottom screen to be used as console output.
consoleInit(GFX_TOP, &topScreen);
consoleInit(GFX_BOTTOM, &bottomScreen);
consoleSelect(&topScreen);
CURL* curl;
CURLcode res;
curl = curl_easy_init();
if (curl) {
curl_easy_setopt(curl, CURLOPT_URL, "http://192.168.42.68:800/file.txt");
/* example.com is redirected, so we tell libcurl to follow redirection */
curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1L);
/* Perform the request, res will get the return code */
res = curl_easy_perform(curl);
/* Check for errors */
if (res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* always cleanup */
curl_easy_cleanup(curl);
}
//Main loop
while (aptMainLoop()) {
consoleSelect(&topScreen);
hidScanInput();
u32 kDown = hidKeysDown();
if (kDown & KEY_START)
break;
gfxFlushBuffers();
gfxSwapBuffers();
gspWaitForVBlank();
}
gfxExit();
}
In case it matters, here is the Makefile I'm using as well:
Code: Select all
#---------------------------------------------------------------------------------
.SUFFIXES:
#---------------------------------------------------------------------------------
ifeq ($(strip $(DEVKITARM)),)
$(error "Please set DEVKITARM in your environment. export DEVKITARM=<path to>devkitARM")
endif
TOPDIR ?= $(CURDIR)
include $(DEVKITARM)/3ds_rules
#---------------------------------------------------------------------------------
# TARGET is the name of the output
# BUILD is the directory where object files & intermediate files will be placed
# SOURCES is a list of directories containing source code
# DATA is a list of directories containing data files
# INCLUDES is a list of directories containing header files
# GRAPHICS is a list of directories containing graphics files
# GFXBUILD is the directory where converted graphics files will be placed
# If set to $(BUILD), it will statically link in the converted
# files as if they were data files.
#
# NO_SMDH: if set to anything, no SMDH file is generated.
# ROMFS is the directory which contains the RomFS, relative to the Makefile (Optional)
# APP_TITLE is the name of the app stored in the SMDH file (Optional)
# APP_DESCRIPTION is the description of the app stored in the SMDH file (Optional)
# APP_AUTHOR is the author of the app stored in the SMDH file (Optional)
# ICON is the filename of the icon (.png), relative to the project folder.
# If not set, it attempts to use one of the following (in this order):
# - <Project name>.png
# - icon.png
# - <libctru folder>/default_icon.png
#---------------------------------------------------------------------------------
TARGET := $(notdir $(CURDIR))
BUILD := build
SOURCES := source
DATA := data
INCLUDES := include
GRAPHICS := gfx
GFXBUILD := $(BUILD)
#ROMFS := romfs
#GFXBUILD := $(ROMFS)/gfx
#---------------------------------------------------------------------------------
# options for code generation
#---------------------------------------------------------------------------------
ARCH := -march=armv6k -mtune=mpcore -mfloat-abi=hard -mtp=soft
CFLAGS := -g -Wall -O2 -mword-relocations \
-fomit-frame-pointer -ffunction-sections \
`curl-config --cflags` \
$(ARCH)
CFLAGS += $(INCLUDE) -DARM11 -D_3DS -I/opt/devkitpro/portlibs/3ds/include/
CXXFLAGS := $(CFLAGS) -fno-rtti -fno-exceptions -std=gnu++11
ASFLAGS := -g $(ARCH)
LDFLAGS = -specs=3dsx.specs -g $(ARCH) -Wl,-Map,$(notdir $*.map)
LIBS := `curl-config --libs`
#---------------------------------------------------------------------------------
# list of directories containing libraries, this must be the top level containing
# include and lib
#---------------------------------------------------------------------------------
LIBDIRS := $(CTRULIB) $(PORTLIBS)
#---------------------------------------------------------------------------------
# no real need to edit anything past this point unless you need to add additional
# rules for different file extensions
#---------------------------------------------------------------------------------
ifneq ($(BUILD),$(notdir $(CURDIR)))
#---------------------------------------------------------------------------------
export OUTPUT := $(CURDIR)/$(TARGET)
export TOPDIR := $(CURDIR)
export VPATH := $(foreach dir,$(SOURCES),$(CURDIR)/$(dir)) \
$(foreach dir,$(GRAPHICS),$(CURDIR)/$(dir)) \
$(foreach dir,$(DATA),$(CURDIR)/$(dir))
export DEPSDIR := $(CURDIR)/$(BUILD)
CFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.c)))
CPPFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.cpp)))
SFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.s)))
PICAFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.v.pica)))
SHLISTFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.shlist)))
GFXFILES := $(foreach dir,$(GRAPHICS),$(notdir $(wildcard $(dir)/*.t3s)))
BINFILES := $(foreach dir,$(DATA),$(notdir $(wildcard $(dir)/*.*)))
#---------------------------------------------------------------------------------
# use CXX for linking C++ projects, CC for standard C
#---------------------------------------------------------------------------------
ifeq ($(strip $(CPPFILES)),)
#---------------------------------------------------------------------------------
export LD := $(CC)
#---------------------------------------------------------------------------------
else
#---------------------------------------------------------------------------------
export LD := $(CXX)
#---------------------------------------------------------------------------------
endif
#---------------------------------------------------------------------------------
#---------------------------------------------------------------------------------
ifeq ($(GFXBUILD),$(BUILD))
#---------------------------------------------------------------------------------
export T3XFILES := $(GFXFILES:.t3s=.t3x)
#---------------------------------------------------------------------------------
else
#---------------------------------------------------------------------------------
export ROMFS_T3XFILES := $(patsubst %.t3s, $(GFXBUILD)/%.t3x, $(GFXFILES))
export T3XHFILES := $(patsubst %.t3s, $(BUILD)/%.h, $(GFXFILES))
#---------------------------------------------------------------------------------
endif
#---------------------------------------------------------------------------------
export OFILES_SOURCES := $(CPPFILES:.cpp=.o) $(CFILES:.c=.o) $(SFILES:.s=.o)
export OFILES_BIN := $(addsuffix .o,$(BINFILES)) \
$(PICAFILES:.v.pica=.shbin.o) $(SHLISTFILES:.shlist=.shbin.o) \
$(addsuffix .o,$(T3XFILES))
export OFILES := $(OFILES_BIN) $(OFILES_SOURCES)
export HFILES := $(PICAFILES:.v.pica=_shbin.h) $(SHLISTFILES:.shlist=_shbin.h) \
$(addsuffix .h,$(subst .,_,$(BINFILES))) \
$(GFXFILES:.t3s=.h)
export INCLUDE := $(foreach dir,$(INCLUDES),-I$(CURDIR)/$(dir)) \
$(foreach dir,$(LIBDIRS),-I$(dir)/include) \
-I$(CURDIR)/$(BUILD)
export LIBPATHS := $(foreach dir,$(LIBDIRS),-L$(dir)/lib)
export _3DSXDEPS := $(if $(NO_SMDH),,$(OUTPUT).smdh)
ifeq ($(strip $(ICON)),)
icons := $(wildcard *.png)
ifneq (,$(findstring $(TARGET).png,$(icons)))
export APP_ICON := $(TOPDIR)/$(TARGET).png
else
ifneq (,$(findstring icon.png,$(icons)))
export APP_ICON := $(TOPDIR)/icon.png
endif
endif
else
export APP_ICON := $(TOPDIR)/$(ICON)
endif
ifeq ($(strip $(NO_SMDH)),)
export _3DSXFLAGS += --smdh=$(CURDIR)/$(TARGET).smdh
endif
ifneq ($(ROMFS),)
export _3DSXFLAGS += --romfs=$(CURDIR)/$(ROMFS)
endif
.PHONY: all clean
#---------------------------------------------------------------------------------
all: $(BUILD) $(GFXBUILD) $(DEPSDIR) $(ROMFS_T3XFILES) $(T3XHFILES)
@$(MAKE) --no-print-directory -C $(BUILD) -f $(CURDIR)/Makefile
$(BUILD):
@mkdir -p $@
ifneq ($(GFXBUILD),$(BUILD))
$(GFXBUILD):
@mkdir -p $@
endif
ifneq ($(DEPSDIR),$(BUILD))
$(DEPSDIR):
@mkdir -p $@
endif
#---------------------------------------------------------------------------------
clean:
@echo clean ...
@rm -fr $(BUILD) $(TARGET).3dsx $(OUTPUT).smdh $(TARGET).elf $(GFXBUILD)
#---------------------------------------------------------------------------------
$(GFXBUILD)/%.t3x $(BUILD)/%.h : %.t3s
#---------------------------------------------------------------------------------
@echo $(notdir $<)
@tex3ds -i $< -H $(BUILD)/$*.h -d $(DEPSDIR)/$*.d -o $(GFXBUILD)/$*.t3x
#---------------------------------------------------------------------------------
else
#---------------------------------------------------------------------------------
# main targets
#---------------------------------------------------------------------------------
$(OUTPUT).3dsx : $(OUTPUT).elf $(_3DSXDEPS)
$(OFILES_SOURCES) : $(HFILES)
$(OUTPUT).elf : $(OFILES)
#---------------------------------------------------------------------------------
# you need a rule like this for each extension you use as binary data
#---------------------------------------------------------------------------------
%.bin.o %_bin.h : %.bin
#---------------------------------------------------------------------------------
@echo $(notdir $<)
@$(bin2o)
#---------------------------------------------------------------------------------
.PRECIOUS : %.t3x
#---------------------------------------------------------------------------------
%.t3x.o %_t3x.h : %.t3x
#---------------------------------------------------------------------------------
@echo $(notdir $<)
@$(bin2o)
#---------------------------------------------------------------------------------
# rules for assembling GPU shaders
#---------------------------------------------------------------------------------
define shader-as
$(eval CURBIN := $*.shbin)
$(eval DEPSFILE := $(DEPSDIR)/$*.shbin.d)
echo "$(CURBIN).o: $< $1" > $(DEPSFILE)
echo "extern const u8" `(echo $(CURBIN) | sed -e 's/^\([0-9]\)/_\1/' | tr . _)`"_end[];" > `(echo $(CURBIN) | tr . _)`.h
echo "extern const u8" `(echo $(CURBIN) | sed -e 's/^\([0-9]\)/_\1/' | tr . _)`"[];" >> `(echo $(CURBIN) | tr . _)`.h
echo "extern const u32" `(echo $(CURBIN) | sed -e 's/^\([0-9]\)/_\1/' | tr . _)`_size";" >> `(echo $(CURBIN) | tr . _)`.h
picasso -o $(CURBIN) $1
bin2s $(CURBIN) | $(AS) -o $*.shbin.o
endef
%.shbin.o %_shbin.h : %.v.pica %.g.pica
@echo $(notdir $^)
@$(call shader-as,$^)
%.shbin.o %_shbin.h : %.v.pica
@echo $(notdir $<)
@$(call shader-as,$<)
%.shbin.o %_shbin.h : %.shlist
@echo $(notdir $<)
@$(call shader-as,$(foreach file,$(shell cat $<),$(dir $<)$(file)))
#---------------------------------------------------------------------------------
%.t3x %.h : %.t3s
#---------------------------------------------------------------------------------
@echo $(notdir $<)
@tex3ds -i $< -H $*.h -d $*.d -o $*.t3x
-include $(DEPSDIR)/*.d
#---------------------------------------------------------------------------------------
endif
#---------------------------------------------------------------------------------------