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* pexecute.c: Don't use vfork. Initialize 'pid' before retry loop. 

From-SVN: r35436
This commit is contained in:
Zack Weinberg 2000-08-02 22:03:53 +00:00 committed by Zack Weinberg
parent f536cd95fb
commit c9b6494a24
2 changed files with 9 additions and 20 deletions
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4
libiberty/ChangeLog
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@ -1,3 +1,7 @@
2000-08-02 Zack Weinberg <zack@wolery.cumb.org>
* pexecute.c: Don't use vfork. Initialize 'pid' before retry loop.
2000-07-26 Dave Pitts <dpitts@cozx.com> 2000-07-26 Dave Pitts <dpitts@cozx.com>
* config/mh-openedition.h: Added -DLE370 definition. * config/mh-openedition.h: Added -DLE370 definition.

25
libiberty/pexecute.c
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@ -46,19 +46,6 @@ extern int errno;
#include <sys/wait.h> #include <sys/wait.h>
#endif #endif
#ifdef vfork /* Autoconf may define this to fork for us. */
# define VFORK_STRING "fork"
#else
# define VFORK_STRING "vfork"
#endif
#ifdef HAVE_VFORK_H
#include <vfork.h>
#endif
#ifdef VMS
#define vfork() (decc$$alloc_vfork_blocks() >= 0 ? \
lib$get_current_invo_context(decc$$get_vfork_jmpbuf()) : -1)
#endif /* VMS */
#include "libiberty.h" #include "libiberty.h"
/* stdin file number. */ /* stdin file number. */
@ -714,9 +701,10 @@ pexecute (program, argv, this_pname, temp_base, errmsg_fmt, errmsg_arg, flags)
/* Fork a subprocess; wait and retry if it fails. */ /* Fork a subprocess; wait and retry if it fails. */
sleep_interval = 1; sleep_interval = 1;
pid = -1;
for (retries = 0; retries < 4; retries++) for (retries = 0; retries < 4; retries++)
{ {
pid = vfork (); pid = fork ();
if (pid >= 0) if (pid >= 0)
break; break;
sleep (sleep_interval); sleep (sleep_interval);
@ -726,11 +714,9 @@ pexecute (program, argv, this_pname, temp_base, errmsg_fmt, errmsg_arg, flags)
switch (pid) switch (pid)
{ {
case -1: case -1:
{ *errmsg_fmt = "fork";
*errmsg_fmt = VFORK_STRING; *errmsg_arg = NULL;
*errmsg_arg = NULL; return -1;
return -1;
}
case 0: /* child */ case 0: /* child */
/* Move the input and output pipes into place, if necessary. */ /* Move the input and output pipes into place, if necessary. */
@ -754,7 +740,6 @@ pexecute (program, argv, this_pname, temp_base, errmsg_fmt, errmsg_arg, flags)
/* Exec the program. */ /* Exec the program. */
(*func) (program, argv); (*func) (program, argv);
/* Note: Calling fprintf and exit here doesn't seem right for vfork. */
fprintf (stderr, "%s: ", this_pname); fprintf (stderr, "%s: ", this_pname);
fprintf (stderr, install_error_msg, program); fprintf (stderr, install_error_msg, program);
fprintf (stderr, ": %s\n", xstrerror (errno)); fprintf (stderr, ": %s\n", xstrerror (errno));