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* Fix potential buffer overflows in case snprintf buffer is too

Browse Source 
small. Patch by Josef Drexler.

* Added 'view.persistance' command that makes downloads inserted into
that view persist across sessions. Only call on user-created views.

* Added 'ratio.*' commands that call the 'group.seeding.ratio.*'
equivalents.


git-svn-id: svn://rakshasa.no/libtorrent/trunk/rtorrent@1080 e378c898-3ddf-0310-93e7-cc216c733640
This commit is contained in:
rakshasa
2008-11-16 07:54:45 +00:00
parent de8a11c4fd
commit 7600a51039
13 changed files with 161 additions and 25 deletions
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src/display/text_element_value.cc
+11 -11
View File
@@ -82,28 +82,28 @@ TextElementValueBase::print(char* first, char* last, Canvas::attributes_list* at
} else if (m_flags & flag_kb) {
// Just use a default width of 5 for now.
first += std::max(snprintf(first, last - first + 1, "%5.1f", (double)val / (1 << 10)), 0);
first += std::min(std::max(snprintf(first, last - first + 1, "%5.1f", (double)val / (1 << 10)), 0), last - first + 1);
} else if (m_flags & flag_mb) {
// Just use a default width of 8 for now.
first += std::max(snprintf(first, last - first + 1, "%8.1f", (double)val / (1 << 20)), 0);
first += std::min(std::max(snprintf(first, last - first + 1, "%8.1f", (double)val / (1 << 20)), 0), last - first + 1);
} else if (m_flags & flag_xb) {
if (val < (int64_t(1000) << 10))
first += std::max(snprintf(first, last - first + 1, "%5.1f KB", (double)val / (int64_t(1) << 10)), 0);
first += std::min(std::max(snprintf(first, last - first + 1, "%5.1f KB", (double)val / (int64_t(1) << 10)), 0), last - first + 1);
else if (val < (int64_t(1000) << 20))
first += std::max(snprintf(first, last - first + 1, "%5.1f MB", (double)val / (int64_t(1) << 20)), 0);
first += std::min(std::max(snprintf(first, last - first + 1, "%5.1f MB", (double)val / (int64_t(1) << 20)), 0), last - first + 1);
else if (val < (int64_t(1000) << 30))
first += std::max(snprintf(first, last - first + 1, "%5.1f GB", (double)val / (int64_t(1) << 30)), 0);
first += std::min(std::max(snprintf(first, last - first + 1, "%5.1f GB", (double)val / (int64_t(1) << 30)), 0), last - first + 1);
else
first += std::max(snprintf(first, last - first + 1, "%5.1f TB", (double)val / (int64_t(1) << 40)), 0);
first += std::min(std::max(snprintf(first, last - first + 1, "%5.1f TB", (double)val / (int64_t(1) << 40)), 0), last - first + 1);
} else if (m_flags & flag_timer) {
if (val == 0)
first += std::max(snprintf(first, last - first + 1, "--:--:--"), 0);
first += std::min(std::max(snprintf(first, last - first + 1, "--:--:--"), 0), last - first + 1);
else
first += std::max(snprintf(first, last - first + 1, "%2d:%02d:%02d", (int)(val / 3600), (int)((val / 60) % 60), (int)(val % 60)), 0);
first += std::min(std::max(snprintf(first, last - first + 1, "%2d:%02d:%02d", (int)(val / 3600), (int)((val / 60) % 60), (int)(val % 60)), 0), last - first + 1);
} else if (m_flags & flag_date) {
time_t t = val;
@@ -112,7 +112,7 @@ TextElementValueBase::print(char* first, char* last, Canvas::attributes_list* at
if (u == NULL)
return first;
first += std::max(snprintf(first, last - first + 1, "%02u/%02u/%04u", u->tm_mday, (u->tm_mon + 1), (1900 + u->tm_year)), 0);
first += std::min(std::max(snprintf(first, last - first + 1, "%02u/%02u/%04u", u->tm_mday, (u->tm_mon + 1), (1900 + u->tm_year)), 0), last - first + 1);;
} else if (m_flags & flag_time) {
time_t t = val;
@@ -121,10 +121,10 @@ TextElementValueBase::print(char* first, char* last, Canvas::attributes_list* at
if (u == NULL)
return first;
first += std::max(snprintf(first, last - first + 1, "%2d:%02d:%02d", u->tm_hour, u->tm_min, u->tm_sec), 0);
first += std::min(std::max(snprintf(first, last - first + 1, "%2d:%02d:%02d", u->tm_hour, u->tm_min, u->tm_sec), 0), last - first + 1);
} else {
first += std::max(snprintf(first, last - first + 1, "%lld", val), 0);
first += std::min(std::max(snprintf(first, last - first + 1, "%lld", val), 0), last - first + 1);
}
push_attribute(attributes, Attributes(first, baseAttribute));