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cleanup: replace membuffer by membufferpp in C-code

Browse source 
Thus, the membuffer data is automatically freed when going
out of scope - one thing less to worry about.

This fixes one use-after-free bug in uploadDiveLogsDE.cpp
and one extremely questionable practice in divetooltipitem.cpp:
The membuffer was a shared instance across all instances
of the DiveToolTipItem.

Remves unnecessary #include directives in files that didn't
even use membuffer.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This commit is contained in:
Berthold Stoeger 2021-07-20 07:45:31 +02:00 • committed by Dirk Hohndel
parent f142e9a9c6
commit 16b31985c3
9 changed files with 9 additions and 21 deletions
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9
core/uploadDiveLogsDE.cpp
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@ -97,7 +97,7 @@ bool uploadDiveLogsDE::prepareDives(const QString &tempfile, bool selected)
const char *membuf;
xmlDoc *transformed;
struct zip_source *s;
struct membuffer mb = {};
struct membufferpp mb;
struct xml_params *params = alloc_xml_params();
/*
@ -109,9 +109,7 @@ bool uploadDiveLogsDE::prepareDives(const QString &tempfile, bool selected)
continue;
}
/* make sure the buffer is empty and add the dive */
mb.len = 0;
/* add the dive */
struct dive_site *ds = dive->dive_site;
if (ds) {
@ -140,7 +138,7 @@ bool uploadDiveLogsDE::prepareDives(const QString &tempfile, bool selected)
put_format(&mb, "</divelog>\n");
}
membuf = mb_cstring(&mb);
streamsize = strlen(membuf);
streamsize = mb.len;
/*
* Parse the memory buffer into XML document and
* transform it to divelogs.de format, finally dumping
@ -156,7 +154,6 @@ bool uploadDiveLogsDE::prepareDives(const QString &tempfile, bool selected)
free_xml_params(params);
return false;
}
free_buffer(&mb);
xml_params_add_int(params, "allcylinders", prefs.display_unused_tanks);
transformed = xsltApplyStylesheet(xslt, doc, xml_params_get(params));