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test-iconv.c
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/
test-iconv.c
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#include "test-tool.h"
#include "git-compat-util.h"
#include "strbuf.h"
#include "gettext.h"
#include "parse-options.h"
#include "utf8.h"
int cmd__iconv(int argc, const char **argv)
{
struct strbuf buf = STRBUF_INIT;
char *from = NULL, *to = NULL, *p;
size_t len;
int ret = 0;
const char * const iconv_usage[] = {
N_("test-helper --iconv [<options>]"),
NULL
};
struct option options[] = {
OPT_STRING('f', "from-code", &from, "encoding", "from"),
OPT_STRING('t', "to-code", &to, "encoding", "to"),
OPT_END()
};
argc = parse_options(argc, argv, NULL, options,
iconv_usage, 0);
if (argc > 1 || !from || !to)
usage_with_options(iconv_usage, options);
if (!argc) {
if (strbuf_read(&buf, 0, 2048) < 0)
die_errno("Could not read from stdin");
} else if (strbuf_read_file(&buf, argv[0], 2048) < 0)
die_errno("Could not read from '%s'", argv[0]);
p = reencode_string_len(buf.buf, buf.len, to, from, &len);
if (!p)
die_errno("Could not reencode");
if (write(1, p, len) < 0)
ret = !!error_errno("Could not write %"PRIuMAX" bytes",
(uintmax_t)len);
strbuf_release(&buf);
free(p);
return ret;
}