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Issue #10350: Read and save errno before calling a function which might overwrite it.

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Original patch by Hallvard B Furuseth.
This commit is contained in:
Antoine Pitrou 2011-12-16 12:28:32 +01:00
parent 87448819ab
commit c345ce1a69
7 changed files with 33 additions and 12 deletions
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4
Parser/myreadline.c
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@ -36,6 +36,7 @@ static int
my_fgets(char *buf, int len, FILE *fp)
{
char *p;
int err;
while (1) {
if (PyOS_InputHook != NULL)
(void)(PyOS_InputHook)();
@ -44,6 +45,7 @@ my_fgets(char *buf, int len, FILE *fp)
p = fgets(buf, len, fp);
if (p != NULL)
return 0; /* No error */
err = errno;
#ifdef MS_WINDOWS
/* In the case of a Ctrl+C or some other external event
interrupting the operation:
@ -78,7 +80,7 @@ my_fgets(char *buf, int len, FILE *fp)
return -1; /* EOF */
}
#ifdef EINTR
if (errno == EINTR) {
if (err == EINTR) {
int s;
#ifdef WITH_THREAD
PyEval_RestoreThread(_PyOS_ReadlineTState);