diff options
Diffstat (limited to 'lib/libkvm/kvm.c')
| -rw-r--r-- | lib/libkvm/kvm.c | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/lib/libkvm/kvm.c b/lib/libkvm/kvm.c index 4cbda47..de21f39 100644 --- a/lib/libkvm/kvm.c +++ b/lib/libkvm/kvm.c @@ -379,12 +379,12 @@ _kvm_open(kvm_t *kd, const char *uf, const char *mf, int flag, char *errout) kd->vmfd = -1; kd->pmfd = -1; kd->nlfd = -1; - kd->vmst = 0; - kd->procbase = 0; - kd->argspc = 0; - kd->argv = 0; + kd->vmst = NULL; + kd->procbase = NULL; + kd->argspc = NULL; + kd->argv = NULL; - if (uf == 0) + if (uf == NULL) uf = getbootfile(); else if (strlen(uf) >= MAXPATHLEN) { _kvm_err(kd, kd->program, "exec file name too long"); @@ -394,7 +394,7 @@ _kvm_open(kvm_t *kd, const char *uf, const char *mf, int flag, char *errout) _kvm_err(kd, kd->program, "bad flags arg"); goto failed; } - if (mf == 0) + if (mf == NULL) mf = _PATH_MEM; if ((kd->pmfd = open(mf, flag | O_CLOEXEC, 0)) < 0) { @@ -471,7 +471,7 @@ failed: /* * Copy out the error if doing sane error semantics. */ - if (errout != 0) + if (errout != NULL) strlcpy(errout, kd->errbuf, _POSIX2_LINE_MAX); (void)kvm_close(kd); return (0); @@ -484,7 +484,9 @@ kvm_openfiles(const char *uf, const char *mf, const char *sf __unused, int flag, kvm_t *kd; if ((kd = calloc(1, sizeof(*kd))) == NULL) { - (void)strlcpy(errout, strerror(errno), _POSIX2_LINE_MAX); + if (errout != NULL) + (void)strlcpy(errout, strerror(errno), + _POSIX2_LINE_MAX); return (0); } return (_kvm_open(kd, uf, mf, flag, errout)); @@ -513,7 +515,9 @@ kvm_open2(const char *uf, const char *mf, int flag, char *errout, kvm_t *kd; if ((kd = calloc(1, sizeof(*kd))) == NULL) { - (void)strlcpy(errout, strerror(errno), _POSIX2_LINE_MAX); + if (errout != NULL) + (void)strlcpy(errout, strerror(errno), + _POSIX2_LINE_MAX); return (0); } kd->resolve_symbol = resolver; |
