最初コミット

.gitignore

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+odl
+release

CHANGELOG.md

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+# 0.1.0
+* 最初リリース

LICENSE.txt

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+Copyright © 2004-2011 by Internet Systems Consortium, Inc. ("ISC")
+Copyright © 2018-2024 by 076.moe
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH REGARD
+TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR
+CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
+ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+SOFTWARE.

Makefile

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+UNAME_S!=uname -s
+
+NAME!=cat main.c | grep "const char\* sofname" | awk '{print $$5}' | \
+	sed "s/\"//g" | sed "s/;//"
+VERSION!=cat main.c | grep "const char\* version" | awk '{print $$5}' | \
+	sed "s/\"//g" | sed "s/;//"
+PREFIX=/usr/local
+MANPREFIX=${PREFIX}/man
+CFLAGS=-Wall -Wextra -g -I/usr/include -I/usr/local/include
+LDFLAGS=-L/usr/lib -L/usr/local/lib
+
+.if ${UNAME_S} == "FreeBSD"
+MANPREFIX=${PREFIX}/share/man
+.elif ${UNAME_S} == "OpenBSD"
+.elif ${UNAME_S} == "Linux"
+PREFIX=/usr
+MANPREFIX=${PREFIX}/share/man
+.elif ${UNAME_S} == "NetBSD"
+PREFIX=/usr/pkg
+CFLAGS+= -I/usr/pkg/include
+LDFLAGS+= -L/usr/pkg/lib
+MANPREFIX=${PREFIX}/share/man
+.endif
+
+CC=cc
+FILES=main.c
+LIBS=-lcurl
+
+all:
+	${CC} ${CFLAGS} -o ${NAME} ${FILES} ${LDFLAGS} ${LIBS}
+	strip ${NAME}
+
+clean:
+	rm -f ${NAME}
+
+release-openbsd:
+	mkdir -p release/bin
+	${CC} ${CFLAGS} -o release/bin/${NAME}-${VERSION}-openbsd-amd64 ${FILES} ${LDFLAGS} \
+		-static -lcurl -lc -lnghttp3 -lngtcp2_crypto_quictls -lngtcp2 -lssl \
+		-lcrypto -lnghttp2 -lz -lpthread
+	strip release/bin/${NAME}-${VERSION}-openbsd-amd64
+
+release-netbsd:
+	mkdir -p release/bin
+	${CC} ${CFLAGS} -o release/bin/${NAME}-${VERSION}-netbsd-amd64 ${FILES} ${LDFLAGS} \
+		-static -lcurl -lnghttp2 -lc -lidn2 -lunistring -lgssapi -lkrb5 -lhx509 -lintl \
+		-lssl -lcrypto -lcrypt -lasn1 -lcom_err -lroken -lutil -lwind -lheimbase \
+		-lheimntlm -lz -lpthread
+	strip release/bin/${NAME}-${VERSION}-netbsd-amd64
+
+release-freebsd:
+	mkdir -p release/bin
+	${CC} ${CFLAGS} -o release/bin/${NAME}-${VERSION}-freebsd-amd64 ${FILES} ${LDFLAGS} \
+		-static -lcurl -lnghttp2 -lssh2 -lpsl -lssl -lheimntlm \
+		-lhx509 -lcom_err -lcrypto -lasn1 -lwind -lheimbase \
+		-lroken -lcrypt -lz -lkrb5 -lgssapi -lgssapi_krb5 -lthr \
+		-lidn2 -lunistring -lprivateheimipcc
+	strip release/bin/${NAME}-${VERSION}-freebsd-amd64
+
+release-linux:
+	mkdir -p release/bin
+	${CC} ${CFLAGS} -o release/bin/${NAME}-${VERSION}-linux-amd64 ${FILES} ${LDFLAGS} \
+		-static -lcurl -lc -lnghttp2 -lidn2 -lssh2 -lpsl -lssl -lcrypto -lzstd -lz \
+		-lunistring
+	strip release/bin/${NAME}-${VERSION}-linux-amd64
+
+dist:
+	mkdir -p ${NAME}-${VERSION} release/src
+	cp -R LICENSE.txt Makefile README.md CHANGELOG.md \
+		*.c ${NAME}-${VERSION}
+	tar zcfv ${NAME}-${VERSION}.tar.gz ${NAME}-${VERSION}
+	mv ${NAME}-${VERSION}.tar.gz release/src
+	rm -rf ${NAME}-${VERSION}
+
+install:
+	mkdir -p ${DESTDIR}${PREFIX}/bin
+	cp -f ${NAME} ${DESTDIR}${PREFIX}/bin
+	chmod 755 ${DESTDIR}${PREFIX}/bin/${NAME}
+
+uninstall:
+	rm -f ${DESTDIR}${PREFIX}/bin/${NAME}
+
+.PHONY: all clean install uninstall

README.md

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+# odl - オンライン・ダウンロード
+
+## インストールする方法
+### OpenBSD
+```sh
+doas pkg_add curl
+make
+doas make install
+```
+
+### Void Linux
+```sh
+doas xbps-install curl bmake
+bmake
+doas bmake install
+```
+
+### FreeBSD
+```sh
+doas pkg install curl
+make
+doas make install
+```
+
+### NetBSD
+```sh
+doas pkgin install curl
+make
+doas make install
+```
+
+### CRUX Linux
+```sh
+doas prt-get depinst curl bmake
+bmake
+doas bmake install
+```

main.c

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+#include <stdio.h>
+#include <stdlib.h>
+#include <libgen.h>
+
+#include <curl/curl.h>
+
+const char* sofname = "odl";
+const char* version = "0.1.0";
+char* filename;
+
+int progress_callback(void *cp, double dt, double dn, double ut, double un) {
+  (void)cp;
+  (void)ut;
+  (void)un;
+
+  double progress = (dn / dt) * 100.0;
+  char* status = "ダウンロード中";
+  if (progress == 100.0) status = "ダウンロード済み";
+
+  printf("\r[");
+  int barw = 50;
+  int pos = (int)(progress * barw / 100.0);
+
+  for (int i = 0; i < barw; ++i) {
+    if (i < pos) printf("=");
+    else if (i == pos) printf(">");
+    else printf(" ");
+  }
+
+  printf("] %.2f%% %s, %s", progress, filename, status);
+  fflush(stdout);
+
+  return 0;
+}
+
+int main(int argc, char* argv[]) {
+  if (argc < 2) {
+    printf("usage: %s [url ...]\n", sofname);
+    return 1;
+  }
+
+  CURL* curl = curl_easy_init();
+  if (!curl) {
+    perror("curlを初期設置に失敗。");
+    return -1;
+  }
+
+  for (int i = 1; i < argc; i++) {
+    const char* url = argv[i];
+    filename = basename((char*)url);
+
+    curl_easy_setopt(curl, CURLOPT_PROGRESSFUNCTION, progress_callback);
+    curl_easy_setopt(curl, CURLOPT_NOPROGRESS, 0L);
+
+    FILE* file = fopen(filename, "wb");
+    if (!file) {
+      curl_easy_cleanup(curl);
+      perror("ファイルを開けません。");
+      return -1;
+    }
+
+    curl_easy_setopt(curl, CURLOPT_URL, url);
+    curl_easy_setopt(curl, CURLOPT_WRITEDATA, file);
+    CURLcode res = curl_easy_perform(curl);
+    fclose(file);
+
+    if (res != CURLE_OK) {
+      curl_easy_cleanup(curl);
+      fprintf(stderr, "ダウンロードに失敗： %s\n", curl_easy_strerror(res));
+      return -1;
+    }
+
+    printf("\n");
+  }
+
+  curl_easy_cleanup(curl);
+
+  printf("\nダウンロードに完了しました。\n");
+
+  return 0;
+}