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Use snprintf instead of memcpy in mrbc.c.

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This commit is contained in:
Yukihiro "Matz" Matsumoto
2020-06-23 13:08:38 +09:00
parent c07f24cd18
commit 9dfe50f1d9
1 changed files with 4 additions and 10 deletions
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mrbgems/mruby-bin-mrbc/tools/mrbc/mrbc.c
+4 -10
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@@ -53,19 +53,13 @@ static char *
get_outfilename(mrb_state *mrb, char *infile, const char *ext)
{
size_t infilelen;
size_t extlen;
size_t flen;
char *outfile;
char *p;
infilelen = strlen(infile);
extlen = strlen(ext);
outfile = (char*)mrb_malloc(mrb, infilelen + extlen + 1);
memcpy(outfile, infile, infilelen + 1);
if (*ext) {
if ((p = strrchr(outfile, '.')) == NULL)
p = outfile + infilelen;
memcpy(p, ext, extlen + 1);
}
flen = infilelen + strlen(ext) + 1;
outfile = (char*)mrb_malloc(mrb, flen);
snprintf(outfile, flen, "%s%s", infile, ext);
return outfile;
}