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Security review: check results of snprintf.

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Calls marked with xSnprintf shouldn't fail.
Abort program cleanly if any of them does.
This commit is contained in:
Hisham Muhammad
2017-07-27 16:07:50 -03:00
parent 3975e9ce5c
commit 09e241fb12
25 changed files with 125 additions and 120 deletions
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10
TasksMeter.c
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@ -30,7 +30,7 @@ static void TasksMeter_updateValues(Meter* this, char* buffer, int len) {
if (this->pl->settings->hideKernelThreads) {
this->values[0] = 0;
}
snprintf(buffer, len, "%d/%d", (int) this->values[3], (int) this->total);
xSnprintf(buffer, len, "%d/%d", (int) this->values[3], (int) this->total);
}
static void TasksMeter_display(Object* cast, RichString* out) {
@ -40,7 +40,7 @@ static void TasksMeter_display(Object* cast, RichString* out) {
int processes = (int) this->values[2];
snprintf(buffer, sizeof(buffer), "%d", processes);
xSnprintf(buffer, sizeof(buffer), "%d", processes);
RichString_write(out, CRT_colors[METER_VALUE], buffer);
int threadValueColor = CRT_colors[METER_VALUE];
int threadCaptionColor = CRT_colors[METER_TEXT];
@ -50,18 +50,18 @@ static void TasksMeter_display(Object* cast, RichString* out) {
}
if (!settings->hideUserlandThreads) {
RichString_append(out, CRT_colors[METER_TEXT], ", ");
snprintf(buffer, sizeof(buffer), "%d", (int)this->values[1]);
xSnprintf(buffer, sizeof(buffer), "%d", (int)this->values[1]);
RichString_append(out, threadValueColor, buffer);
RichString_append(out, threadCaptionColor, " thr");
}
if (!settings->hideKernelThreads) {
RichString_append(out, CRT_colors[METER_TEXT], ", ");
snprintf(buffer, sizeof(buffer), "%d", (int)this->values[0]);
xSnprintf(buffer, sizeof(buffer), "%d", (int)this->values[0]);
RichString_append(out, threadValueColor, buffer);
RichString_append(out, threadCaptionColor, " kthr");
}
RichString_append(out, CRT_colors[METER_TEXT], "; ");
snprintf(buffer, sizeof(buffer), "%d", (int)this->values[3]);
xSnprintf(buffer, sizeof(buffer), "%d", (int)this->values[3]);
RichString_append(out, CRT_colors[TASKS_RUNNING], buffer);
RichString_append(out, CRT_colors[METER_TEXT], " running");
}