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change kern_proc_args to only copy exe if given a pointer

This commit is contained in:
Doug MacEachern 2006-08-29 00:29:41 +00:00
parent 94dd5f8280
commit 9263b6efcb
1 changed files with 9 additions and 8 deletions
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17
src/os/darwin/darwin_sigar.c
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@ -920,13 +920,13 @@ int sigar_proc_state_get(sigar_t *sigar, sigar_pid_t pid,
#if defined(DARWIN)
typedef struct {
char exe[PATH_MAX+1];
char buffer[8096], *ptr, *end;
int count;
} sigar_kern_proc_args_t;
/* re-usable hack for use by proc_args and proc_env */
static int sigar_kern_proc_args_get(sigar_pid_t pid,
char *exe,
sigar_kern_proc_args_t *kargs)
{
/*
@ -951,11 +951,13 @@ static int sigar_kern_proc_args_get(sigar_pid_t pid,
kargs->ptr = args + sizeof(kargs->count);
len = strlen(kargs->ptr);
memcpy(&kargs->exe[0], kargs->ptr, len+1);
if (exe) {
memcpy(exe, kargs->ptr, len+1);
}
kargs->ptr += len+1;
if (kargs->ptr == kargs->end) {
return ENOENT;
return exe ? SIGAR_OK : ENOENT;
}
for (; kargs->ptr < kargs->end; kargs->ptr++) {
@ -965,7 +967,7 @@ static int sigar_kern_proc_args_get(sigar_pid_t pid,
}
if (kargs->ptr == kargs->end) {
return ENOENT;
return exe ? SIGAR_OK : ENOENT;
}
return SIGAR_OK;
@ -980,7 +982,7 @@ int sigar_proc_args_get(sigar_t *sigar, sigar_pid_t pid,
sigar_kern_proc_args_t kargs;
char *ptr, *end;
status = sigar_kern_proc_args_get(pid, &kargs);
status = sigar_kern_proc_args_get(pid, NULL, &kargs);
if (status != SIGAR_OK) {
return status;
}
@ -1068,7 +1070,7 @@ int sigar_proc_env_get(sigar_t *sigar, sigar_pid_t pid,
sigar_kern_proc_args_t kargs;
char *ptr, *end;
status = sigar_kern_proc_args_get(pid, &kargs);
status = sigar_kern_proc_args_get(pid, NULL, &kargs);
if (status != SIGAR_OK) {
return status;
}
@ -1234,14 +1236,13 @@ int sigar_proc_exe_get(sigar_t *sigar, sigar_pid_t pid,
int status;
sigar_kern_proc_args_t kargs;
status = sigar_kern_proc_args_get(pid, &kargs);
status = sigar_kern_proc_args_get(pid, procexe->name, &kargs);
if (status != SIGAR_OK) {
return status;
}
procexe->cwd[0] = '\0';
procexe->root[0] = '\0';
memcpy(&procexe->name[0], &kargs.exe[0], sizeof(kargs.exe));
return SIGAR_OK;
#else