static int
_rw_vsystem (const char *cmd, va_list va)
{
RW_ASSERT (0 != cmd);
char *buf = 0;
rw_vasnprintf (&buf, 0, cmd, va);
rw_note (0, "file:" __FILE__, __LINE__, "executing \"%s\"", buf);
// avoid using const in order to prevent gcc warning on Linux
// issued for WIFSIGNALED() et al: cast from `const int*' to
// `int*' discards qualifiers from pointer target type:
// see http://sourceware.org/bugzilla/show_bug.cgi?id=1392
/* const */ int ret = system (buf);
if (ret) {
#ifndef _WIN32
if (-1 == ret) {
// system() failed, e.g., because fork() failed
rw_error (0, __FILE__, __LINE__,
"system (\"%s\") failed: errno = %{#m} (%{m})",
buf);
}
else if (WIFSIGNALED (ret)) {
// command exited with a signal
const int signo = WTERMSIG (ret);
rw_error (0, __FILE__, __LINE__,
"the command \"%s\" exited with signal %d (%{K})",
buf, signo, signo);
}
else {
// command exited with a non-zero status
const int status = WEXITSTATUS (ret);
rw_error (0, __FILE__, __LINE__,
"the command \"%s\" exited with status %d",
buf, status);
}
#else // if defined (_WIN32)
// FIXME: make this more descriptive
rw_error (0, __FILE__, __LINE__,
"the command \"%s\" failed with code %d",
buf, ret);
#endif // _WIN32
}
free (buf);
return ret;
}
static rw_pid_t
_rw_vprocess_create (const char* cmd, va_list va)
{
RW_ASSERT (0 != cmd);
char *buf = 0;
rw_vasnprintf (&buf, 0, cmd, va);
rw_pid_t ret = -1;
#ifdef _WIN32
STARTUPINFO si = { sizeof (si) };
PROCESS_INFORMATION pi;
if (CreateProcess (0, buf, 0, 0, FALSE,
CREATE_NEW_PROCESS_GROUP, 0, 0, &si, &pi)) {
CloseHandle (pi.hThread);
ret = rw_pid_t (pi.hProcess);
}
else {
const DWORD err = GetLastError ();
rw_error (0, __FILE__, __LINE__,
"CreateProcess () failed: GetLastError() = %zu",
size_t (err));
errno = _rw_map_errno (err);
}
#else // #if !defined (_WIN32)
const size_t MAX_PARAMS = 63;
char* argv [MAX_PARAMS + 1] = { 0 };
size_t argc = _rw_split_cmd (buf, argv, MAX_PARAMS);
if (0 < argc && MAX_PARAMS >= argc)
ret = rw_process_create (argv [0], argv);
else
errno = E2BIG;
#endif // _WIN32
free (buf);
return ret;
}
static void
_rw_vissue_diag (diag_t diag, int severity, const char *file, int line,
const char *fmt, va_list va)
{
CHECK_INIT (true, "_rw_vissue_diag()");
if (0 == fmt)
fmt = "";
static char fmterr[] = "*** formatting error ***";
char *usrbuf = 0;
const int nchars = rw_vasnprintf (&usrbuf, 0, fmt, va);
if (nchars < 0 || 0 == usrbuf)
usrbuf = fmterr;
// compute the number of newline characters in the text
int nlines = 0;
#ifdef __ARMCC__
#pragma diag_suppress 1293
#endif
for (const char *nl = usrbuf; (nl = strchr (nl, '\n')); ++nl)
++nlines;
static const int use_color = _rw_use_color ();
const char* const diagstr[] = {
use_color ? diag_msgs [severity].esc_pfx : "",
*diag_msgs [severity].code ? diag_msgs [severity].code : "UNKNOWN",
use_color ? diag_msgs [severity].esc_sfx : "",
_rw_opt_verbose (0, 0) && *diag_msgs [severity].desc ?
diag_msgs [severity].desc : 0
};
const char* const traced_diag =
0 == severity && diag_msgs [diag].code ? diag_msgs [diag].code : 0;
const char* const slash = file ? strrchr (file, _RWSTD_PATH_SEP) : 0;
if (slash)
file = slash + 1;
char *mybuf = 0;
if (_rw_opt_csv) {
// format all fields as comma separated values (CSV):
// -- a field containing the quote character, the comma,
// or the newline or linefeed character must be enclosed
// in a pair of double quotes
// -- every occurrence of the double quote character in a field
// must be escaped by prepening another double quote character
// to it
// escape all double quotes by prepending the double
// quote character to each according to the CSV format
char* const newbuf = _rw_escape (usrbuf, 0, '"');
if (newbuf != usrbuf) {
free (usrbuf);
usrbuf = newbuf;
}
mybuf =
rw_sprintfa ("%d, " // severity
"\"%s%s" // diagnostic
"%{?}_%s%{;}%s\", " // traced diagnostic
"\"%s\", " // clause
"\"%s\", " // file
"%d, " // line
"\"%s\"", // user text
severity,
diagstr [0], diagstr [1],
0 != traced_diag, traced_diag, diagstr [2],
clause_id,
0 != file ? file : "",
line,
usrbuf);
}
else {
nlines += 2 + ('\0' != *clause_id) + (0 != file) + (0 < line);
mybuf =
rw_sprintfa ("# %s" // escape prefix
"%s" // diagnostic
"%{?}_%s%{;}" // traced diagnostic
"%s " // escape suffix
"(S%d)" // severity
"%{?}, %s%{;} " // description
"(%d lines):\n" // number of lines
"# TEXT: %s\n" // user text
"%{?}# CLAUSE: %s\n%{;}" // clause if not empty
"%{?}# FILE: %s\n%{;}" // file if not null
"%{?}# LINE: %d\n%{;}", // line if positive
diagstr [0],
diagstr [1],
0 != traced_diag, traced_diag,
diagstr [2],
severity,
0 != diagstr [3], diagstr [3],
nlines,
usrbuf,
'\0' != *clause_id, clause_id,
0 != file, file,
0 < line, line);
}
#if 0 // disabled
else {
