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Move set_proc_name() to OS specific files.

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Move handling to change process name to POSIX specific files
plus add a better error message to cover the case where the
feature isn't supported.

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Acked-by: Juan Quintela <quintela@redhat.com>
Acked-by: Richard Henderson <rth@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This commit is contained in:
Jes Sorensen 2010-06-10 11:42:31 +02:00 • committed by Blue Swirl
parent 9156d76331
commit ce798cf2a2
4 changed files with 27 additions and 18 deletions
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24
os-posix.c
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@ -37,6 +37,10 @@
#include "net/slirp.h"
#include "qemu-options.h"
#ifdef CONFIG_LINUX
#include <sys/prctl.h>
#endif
static struct passwd *user_pwd;
static const char *chroot_dir;
static int daemonize;
@ -139,6 +143,26 @@ char *os_find_datadir(const char *argv0)
#undef SHARE_SUFFIX
#undef BUILD_SUFFIX
void os_set_proc_name(const char *s)
{
#if defined(PR_SET_NAME)
char name[16];
if (!s)
return;
name[sizeof(name) - 1] = 0;
strncpy(name, s, sizeof(name));
/* Could rewrite argv[0] too, but that's a bit more complicated.
This simple way is enough for `top'. */
if (prctl(PR_SET_NAME, name)) {
perror("unable to change process name");
exit(1);
}
#else
fprintf(stderr, "Change of process name not supported by your OS\n");
exit(1);
#endif
}
/*
* Parse OS specific command line options.
* return 0 if option handled, -1 otherwise