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1999-03-29 Paul Eggert <eggert@twinsun.com>

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* libio/iopopen.c (_IO_new_proc_open): Don't modify proc_file_chain 
while in child process.
This commit is contained in:
Andreas Schwab 1999-03-29 16:01:58 +00:00
parent ae6b873031
commit 3c4936302a
1 changed files with 4 additions and 5 deletions
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9
libio/iopopen.c
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@ -139,6 +139,8 @@ _IO_new_proc_open (fp, command, mode)
if (child_pid == 0)
{
int child_std_end = mode[0] == 'r' ? 1 : 0;
struct _IO_proc_file *p;
_IO_close (parent_end);
if (child_end != child_std_end)
{
@ -148,11 +150,8 @@ _IO_new_proc_open (fp, command, mode)
/* POSIX.2: "popen() shall ensure that any streams from previous
popen() calls that remain open in the parent process are closed
in the new child process." */
while (proc_file_chain)
{
_IO_close (_IO_fileno ((_IO_FILE *) proc_file_chain));
proc_file_chain = proc_file_chain->next;
}
for (p = proc_file_chain; p; p = p->next)
_IO_close (_IO_fileno ((_IO_FILE *) p));
_IO_execl ("/bin/sh", "sh", "-c", command, (char *) 0);
_IO__exit (127);