AuroraMiddleware/glibc
1
0
Fork 0
mirror of https://sourceware.org/git/glibc.git synced 2024-12-13 23:00:22 +00:00
Code Issues Packages Projects Releases Wiki Activity

(__libc_system): Check whether command processor is available if LINE is NULL. Don't return immediately if wait call returned with EINTR.

Browse Source
This commit is contained in:
Ulrich Drepper 1999-12-24 08:31:17 +00:00
parent 1693b5c8be
commit 2606f661b7
1 changed files with 19 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

28
sysdeps/posix/system.c
View File

@ -1,4 +1,4 @@
/* Copyright (C) 1991, 92, 94, 95, 96, 97 Free Software Foundation, Inc.
/* Copyright (C) 1991, 92, 94, 95, 96, 97, 99 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@ -44,8 +44,9 @@ __libc_system (const char *line)
#endif
if (line == NULL)
/* This signals that we have a command processor available. */
return 1;
/* Check that we have a command processor available. It might
not be available after a chroot(), for example. */
return __libc_system ("exit 0");
sa.sa_handler = SIG_IGN;
sa.sa_flags = 0;
@ -113,23 +114,32 @@ __libc_system (const char *line)
status = -1;
else
/* Parent side. */
#ifdef NO_WAITPID
{
#ifdef NO_WAITPID
pid_t child;
do
{
child = __wait (&status);
if (child <= -1)
if (child <= -1 && errno != EINTR)
{
status = -1;
break;
}
} while (child != pid);
}
/* Note that pid cannot be <= -1 and therefore the loop continues
when __wait returned with EINTR. */
}
while (child != pid);
#else
if (__waitpid (pid, &status, 0) != pid)
status = -1;
int n;
do
n = __waitpid (pid, &status, 0);
while (n == -1 && errno == EINTR);
if (n != pid)
status = -1;
#endif
}
save = errno;
if ((__sigaction (SIGINT, &intr, (struct sigaction *) NULL) |