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| author | Michal Privoznik <mprivozn@redhat.com> | 2016-09-27 17:24:56 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2016-10-04 10:00:27 +0200 |
| commit | 7dc9ae4339faa97e89daadb2e1098147ab4aadc8 (patch) | |
| tree | 14fe0cb005009fd3de9ac1cb78dfb9f6765f6d95 /util/oslib-posix.c | |
| parent | 6a7b2b21008f271e7a91e937e521e22f94579bb9 (diff) | |
| download | qemu-7dc9ae4339faa97e89daadb2e1098147ab4aadc8.tar.gz | |
util: Introduce qemu_get_pid_name
This is a small helper that tries to fetch binary name for given
PID.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Message-Id: <4d75d475c1884f8e94ee8b1e57273ddf3ed68bf7.1474987617.git.mprivozn@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'util/oslib-posix.c')
| -rw-r--r-- | util/oslib-posix.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/util/oslib-posix.c b/util/oslib-posix.c index f2d4e9e592..8c1e8d6841 100644 --- a/util/oslib-posix.c +++ b/util/oslib-posix.c @@ -46,6 +46,7 @@ #ifdef __FreeBSD__ #include <sys/sysctl.h> +#include <libutil.h> #endif #include "qemu/mmap-alloc.h" @@ -430,6 +431,32 @@ int qemu_read_password(char *buf, int buf_size) } +char *qemu_get_pid_name(pid_t pid) +{ + char *name = NULL; + +#if defined(__FreeBSD__) + /* BSDs don't have /proc, but they provide a nice substitute */ + struct kinfo_proc *proc = kinfo_getproc(pid); + + if (proc) { + name = g_strdup(proc->ki_comm); + free(proc); + } +#else + /* Assume a system with reasonable procfs */ + char *pid_path; + size_t len; + + pid_path = g_strdup_printf("/proc/%d/cmdline", pid); + g_file_get_contents(pid_path, &name, &len, NULL); + g_free(pid_path); +#endif + + return name; +} + + pid_t qemu_fork(Error **errp) { sigset_t oldmask, newmask; |