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ed: Use strlcpy/strlcat to construct the scratch filename

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sin 2016-01-02 09:44:06 +00:00
parent 36e2bdf517
commit 3300d5d47a
1 changed files with 5 additions and 5 deletions
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10
ed.c
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@ -335,12 +335,12 @@ setscratch()
clearundo();
if ((dir = getenv("TMPDIR")) == NULL)
dir = "/tmp/";
if (strlen(dir) + sizeof("ed.XXXXXX") > FILENAME_MAX)
error("incorrect scratch file name");
strcat(strcpy(tmpname, dir), "ed.XXXXX");
if ((scratch = mkstemp(tmpname)) < 0) {
if (strlcpy(tmpname, dir, sizeof(tmpname)) >= sizeof(tmpname))
error("scratch file name too long");
if (strlcat(tmpname, "ed.XXXXXX", sizeof(tmpname)) >= sizeof(tmpname))
error("scratch file name too long");
if ((scratch = mkstemp(tmpname)) < 0)
error("failed to create scratch file");
}
if ((k = makeline("", NULL)))
error("input/output error in scratch file");
relink(k, k, k, k);