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/* $Id: xiohelp.c,v 1.17 2004/06/06 17:33:23 gerhard Exp $ */
/* Copyright Gerhard Rieger 2001-2003 */
/* Published under the GNU General Public License V.2, see file COPYING */
/* this file contains the source for the help function */
#include "xiosysincludes.h"
#include "xioopen.h"
#include "xiohelp.h"
#if WITH_HELP
/* keep consistent with xioopts.h:enum e_types ! */
static const char *optiontypenames[] = {
"CONST", "BIN", "BOOL", "BYTE",
"INT", "LONG", "STRING", "PTRDIFF",
"SHORT", "SIZE_T", "SOCKADDR", "UNSIGNED-INT",
"UNSIGNED-LONG","UNSIGNED-SHORT","MODE_T", "GID_T",
"UID_T", "INT[3]", "STRUCT-TIMEVAL", "STRUCT-TIMESPEC",
#if HAVE_STRUCT_LINGER
"STRUCT-LINGER",
#endif
"DOUBLE", "STRING-NULL", "LONG-LONG",
"OFF_T", "OFF64_T",
} ;
/* keep consistent with xioopts.h:#define GROUP_* ! */
static const char *addressgroupnames[] = {
"FD", "FIFO", "CHR", "BLK",
"REG", "SOCKET", "READLINE", "undef",
"NAMED", "OPEN", "EXEC", "FORK",
"LISTEN", "DEVICE", "CHILD", "RETRY",
"TERMIOS", "RANGE", "PTY", "PARENT",
"UNIX", "IP4", "IP6", "undef",
"UDP", "TCP", "SOCKS4", "OPENSSL",
"PROCESS", "APPL", "HTTP", "undef"
} ;
/* keep consistent with xioopts.h:enum ephase ! */
static char *optionphasenames[] = {
"ALL", "INIT", "EARLY",
"PREOPEN", "OPEN", "PASTOPEN",
"PRESOCKET", "SOCKET", "PASTSOCKET",
"PREBIGEN", "BIGEN", "PASTBIGEN",
"FD",
"PREBIND", "BIND", "PASTBIND",
"PRELISTEN", "LISTEN", "PASTLISTEN",
"PRECONNECT", "CONNECT", "PASTCONNECT",
"PREACCEPT", "ACCEPT", "PASTACCEPT",
"CONNECTED",
"PREFORK", "FORK", "PASTFORK",
"LATE", "LATE2",
"PREEXEC", "EXEC", "SPECIFIC",
NULL
} ;
/* print a line about a single option */
static int xiohelp_option(FILE *of, const struct optname *on, const char *name) {
int j;
unsigned int groups;
bool occurred;
fprintf(of, " %s\tgroups=", name);
groups = on->desc->group; occurred = false;
for (j = 0; j < 32; ++j) {
if (groups & 1) {
if (occurred) { fputc(',', of); }
fprintf(of, "%s", addressgroupnames[j]);
occurred = true;
}
groups >>= 1;
}
fprintf(of, "\tphase=%s", optionphasenames[on->desc->phase]);
fprintf(of, "\ttype=%s", optiontypenames[on->desc->type]);
fputc('\n', of);
return 0;
}
int xioopenhelp(FILE *of,
int level /* 0..only addresses, 1..and options */
) {
const struct addrname *an;
const struct optname *on;
int i, j;
unsigned int groups;
bool occurred;
fputs(" bi-address:\n", of);
fputs(" pipe[,<opts>]\tgroups=FD,FIFO\n", of);
if (level == 2) {
fputs(" echo is an alias for pipe\n", of);
fputs(" fifo is an alias for pipe\n", of);
}
fputs(" <single-address>!!<single-address>\n", of);
fputs(" <single-address>\n", of);
fputs(" single-address:\n", of);
fputs(" <address-head>[,<opts>]\n", of);
fputs(" address-head:\n", of);
an = &addressnames[0];
i = 0;
while (addressnames[i].name) {
if (!strcmp(an->name, an->desc->defname)) {
/* it is a canonical address name */
fprintf(of, " %s", an->name);
if (an->desc->syntax) {
fputs(an->desc->syntax, of); }
fputs("\tgroups=", of);
groups = an->desc->groups; occurred = false;
for (j = 0; j < 32; ++j) {
if (groups & 1) {
if (occurred) { fputc(',', of); }
fprintf(of, "%s", addressgroupnames[j]);
occurred = true;
}
groups >>= 1;
}
fputc('\n', of);
} else if (level == 2) {
fprintf(of, " %s is an alias name for %s\n", an->name, an->desc->defname);
}
++an; ++i;
}
if (level == 2) {
fputs(" <num> is a short form for fd:<num>\n", of);
fputs(" <filename> is a short form for gopen:<filename>\n", of);
}
if (level <= 0) return 0;
fputs(" opts:\n", of);
fputs(" <opt>{,<opts>}:\n", of);
fputs(" opt:\n", of);
on = optionnames;
while (on->name != NULL) {
if (on->desc->nickname!= NULL
&& !strcmp(on->name, on->desc->nickname)) {
if (level == 2) {
fprintf(of, " %s is an alias for %s\n", on->name, on->desc->defname);
} else {
xiohelp_option(of, on, on->name);
}
} else if (on->desc->nickname == NULL &&
!strcmp(on->name, on->desc->defname)) {
xiohelp_option(of, on, on->name);
} else if (level == 2) {
if (!strcmp(on->name, on->desc->defname)) {
xiohelp_option(of, on, on->name);
} else {
fprintf(of, " %s is an alias for %s\n", on->name, on->desc->defname);
}
}
++on;
}
fflush(of);
return 0;
}
#endif /* WITH_HELP */
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