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126e3b3d2a
Many test helper programs do not bother to look at argc or argv, because they don't take any options. In a user-facing program, it's a good idea to check for unexpected arguments and complain. But for a test helper, it's not worth the trouble to enforce this. But we do want to tell the compiler we're OK with ignoring them, to silence -Wunused-parameter (and obviously we can't get rid of them, since we have to conform to the usual cmd__foo() interface). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
31 lines
487 B
C
31 lines
487 B
C
#include "test-tool.h"
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#include "git-compat-util.h"
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/*
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* Read stdin and print a hexdump to stdout.
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*/
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int cmd__hexdump(int argc UNUSED, const char **argv UNUSED)
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{
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char buf[1024];
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ssize_t i, len;
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int have_data = 0;
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for (;;) {
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len = xread(0, buf, sizeof(buf));
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if (len < 0)
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die_errno("failure reading stdin");
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if (!len)
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break;
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have_data = 1;
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for (i = 0; i < len; i++)
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printf("%02x ", (unsigned char)buf[i]);
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}
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if (have_data)
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putchar('\n');
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return 0;
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}
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