48 lines
1.3 KiB
C
48 lines
1.3 KiB
C
#include <sys/syscall.h>
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#include <unistd.h>
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#ifndef DOCKER_IMAGE
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#define DOCKER_IMAGE "hello-world"
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#endif
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#ifndef DOCKER_GREETING
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#define DOCKER_GREETING "Hello from Docker!"
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#endif
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#ifndef DOCKER_ARCH
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#define DOCKER_ARCH "amd64"
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#endif
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const char message[] =
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"\n"
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DOCKER_GREETING "\n"
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"This message shows that your installation appears to be working correctly.\n"
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"\n"
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"To generate this message, Docker took the following steps:\n"
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" 1. The Docker client contacted the Docker daemon.\n"
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" 2. The Docker daemon pulled the \"" DOCKER_IMAGE "\" image from the Docker Hub.\n"
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" (" DOCKER_ARCH ")\n"
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" 3. The Docker daemon created a new container from that image which runs the\n"
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" executable that produces the output you are currently reading.\n"
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" 4. The Docker daemon streamed that output to the Docker client, which sent it\n"
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" to your terminal.\n"
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"\n"
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"To try something more ambitious, you can run an Ubuntu container with:\n"
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" $ docker run -it ubuntu bash\n"
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"\n"
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"Share images, automate workflows, and more with a free Docker ID:\n"
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" https://hub.docker.com/\n"
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"\n"
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"For more examples and ideas, visit:\n"
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" https://docs.docker.com/get-started/\n"
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"\n";
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int main() {
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//write(1, message, sizeof(message) - 1);
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syscall(SYS_write, 1, message, sizeof(message) - 1);
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//_exit(0);
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//syscall(SYS_exit, 0);
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return 0;
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}
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