зеркало из https://github.com/github/ruby.git
process.c: fix error check
* process.c (obj2uid, obj2gid): check the error number returned by `getpwnam_r()` and `getgrnam_r()`, instead of `errno`. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58662 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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cb302650a0
28
process.c
28
process.c
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@ -173,11 +173,6 @@ static void check_gid_switch(void);
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VALUE getpw_buf = 0
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# define FINISH_GETPWNAM \
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(getpw_buf ? (void)rb_str_resize(getpw_buf, 0) : (void)0)
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# ifdef __APPLE__
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# define GETPWNAM_R_RETRY_P(e) (e == 0 || e == ERANGE)
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# else
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# define GETPWNAM_R_RETRY_P(e) (e == ERANGE)
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# endif
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# define OBJ2UID1(id) obj2uid((id), &getpw_buf)
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# define OBJ2UID(id) obj2uid0(id)
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static rb_uid_t obj2uid(VALUE id, VALUE *getpw_buf);
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@ -220,11 +215,6 @@ static rb_uid_t obj2uid(VALUE id);
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VALUE getgr_buf = 0
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# define FINISH_GETGRNAM \
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(getgr_buf ? (void)rb_str_resize(getgr_buf, 0) : (void)0)
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# ifdef __APPLE__
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# define GETGRNAM_R_RETRY_P(e) (e == 0 || e == ERANGE)
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# else
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# define GETGRNAM_R_RETRY_P(e) (e == ERANGE)
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# endif
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# define OBJ2GID1(id) obj2gid((id), &getgr_buf)
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# define OBJ2GID(id) obj2gid0(id)
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static rb_gid_t obj2gid(VALUE id, VALUE *getgr_buf);
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@ -5040,6 +5030,7 @@ obj2uid(VALUE id
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struct passwd pwbuf;
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char *getpw_buf;
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long getpw_buf_len;
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int e;
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if (!*getpw_tmp) {
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getpw_buf_len = GETPW_R_SIZE_INIT;
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if (getpw_buf_len < 0) getpw_buf_len = GETPW_R_SIZE_DEFAULT;
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@ -5048,11 +5039,9 @@ obj2uid(VALUE id
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getpw_buf = RSTRING_PTR(*getpw_tmp);
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getpw_buf_len = rb_str_capacity(*getpw_tmp);
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rb_str_set_len(*getpw_tmp, getpw_buf_len);
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errno = ERANGE;
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/* gepwnam_r() on MacOS X doesn't set errno if buffer size is insufficient */
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while (getpwnam_r(usrname, &pwbuf, getpw_buf, getpw_buf_len, &pwptr)) {
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int e = errno;
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if (!GETPWNAM_R_RETRY_P(e) || getpw_buf_len >= GETPW_R_SIZE_LIMIT) {
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errno = 0;
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while ((e = getpwnam_r(usrname, &pwbuf, getpw_buf, getpw_buf_len, &pwptr)) != 0) {
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if (e != ERANGE || getpw_buf_len >= GETPW_R_SIZE_LIMIT) {
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rb_str_resize(*getpw_tmp, 0);
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rb_syserr_fail(e, "getpwnam_r");
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}
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@ -5118,6 +5107,7 @@ obj2gid(VALUE id
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struct group grbuf;
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char *getgr_buf;
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long getgr_buf_len;
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int e;
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if (!*getgr_tmp) {
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getgr_buf_len = GETGR_R_SIZE_INIT;
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if (getgr_buf_len < 0) getgr_buf_len = GETGR_R_SIZE_DEFAULT;
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@ -5126,11 +5116,9 @@ obj2gid(VALUE id
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getgr_buf = RSTRING_PTR(*getgr_tmp);
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getgr_buf_len = rb_str_capacity(*getgr_tmp);
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rb_str_set_len(*getgr_tmp, getgr_buf_len);
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errno = ERANGE;
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/* gegrnam_r() on MacOS X doesn't set errno if buffer size is insufficient */
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while (getgrnam_r(grpname, &grbuf, getgr_buf, getgr_buf_len, &grptr)) {
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int e = errno;
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if (!GETGRNAM_R_RETRY_P(e) || getgr_buf_len >= GETGR_R_SIZE_LIMIT) {
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errno = 0;
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while ((e = getgrnam_r(grpname, &grbuf, getgr_buf, getgr_buf_len, &grptr)) != 0) {
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if (e != ERANGE || getgr_buf_len >= GETGR_R_SIZE_LIMIT) {
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rb_str_resize(*getgr_tmp, 0);
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rb_syserr_fail(e, "getgrnam_r");
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}
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