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Make write_escaped_data more bulletproof; backport candidate.

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svn:r5106
This commit is contained in:
Nick Mathewson 2005-09-21 23:13:29 +00:00
parent 1cfcc4b351
commit f99b91505b
1 changed files with 3 additions and 1 deletions
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4
src/or/control.c
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@ -290,7 +290,7 @@ write_escaped_data(const char *data, size_t len, int translate_newlines,
int start_of_line;
for (i=0; i<(int)len; ++i) {
if (data[i]== '\n')
++sz_out;
sz_out += 2; /* Maybe add a CR; maybe add a dot. */
}
*out = outp = tor_malloc(sz_out+1);
end = data+len;
@ -317,6 +317,8 @@ write_escaped_data(const char *data, size_t len, int translate_newlines,
*outp++ = '.';
*outp++ = '\r';
*outp++ = '\n';
*outp = '\0'; /* NUL-terminate just in case. */
tor_assert((outp - *out) <= (sz_out));
return outp - *out;
}