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/*
* Copyright (c) 2012,2014 Red Hat.
* Copyright (c) 2008 Aconex. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
#include "pmapi.h"
#include "impl.h"
static int apiflag;
static const char *empty = "";
static const char *none = "false";
static void
direct_report(const char *var, const char *val)
{
if (!val || val[0] == '\0')
val = empty;
printf("%s=%s\n", var, val);
}
static void
export_report(const char *var, const char *val)
{
char buffer[4096];
const char *p;
int i = 0;
if (!val || val[0] == '\0')
val = empty;
else {
/* ensure we do not leak any problematic characters into export */
for (p = val; *p != '\0' && i < sizeof(buffer)-6; p++) {
if ((int)*p == '\'') {
buffer[i++] = '\'';
buffer[i++] = '\\';
buffer[i++] = '\'';
buffer[i++] = '\'';
} else {
buffer[i++] = *p;
}
}
buffer[i] = '\0';
val = buffer;
}
if (apiflag) /* API mode: no override allowed */
printf("export %s='%s'\n", var, val);
else
printf("export %s=${%s:-'%s'}\n", var, var, val);
}
static void
pcp_conf_extract(char *var, char *prefix, char *val)
{
__pmNativeConfig(var, prefix, val);
val = getenv(var);
direct_report(var, val);
}
static void
pcp_conf_shell_extract(char *var, char *prefix, char *val)
{
__pmNativeConfig(var, prefix, val);
val = getenv(var);
export_report(var, val);
}
static pmLongOptions longopts[] = {
PMAPI_OPTIONS_HEADER("Reporting options"),
{ "all", 0, 'a', 0, "show all, unmodified format (default)" },
{ "list", 0, 'l', 0, "synonym for showing \"all\" (above)" },
{ "library", 0, 'L', 0, "show library features instead of environment" },
{ "shell", 0, 's', 0, "show all, quoted format for shell expansion" },
PMOPT_HELP,
PMAPI_OPTIONS_END
};
static pmOptions opts = {
.short_options = "alLs?",
.long_options = longopts,
.short_usage = "[variable ...]",
};
int
main(int argc, char **argv)
{
int c;
int sflag = 0;
while ((c = pmgetopt_r(argc, argv, &opts)) != EOF) {
switch (c) {
case 'a': /* show all, default (unmodified) list format */
case 'l':
sflag = 0;
break;
case 's': /* show all, guarded format for shell expansion */
sflag = 1;
break;
case 'L':
apiflag = 1;
break;
default:
opts.errors++;
break;
}
}
if (opts.errors) {
pmUsageMessage(&opts);
exit(1);
}
if (sflag) {
putenv("SHELL=/bin/sh");
empty = none;
}
/* the complete list of variables is to be reported */
if (opts.optind >= argc) {
if (apiflag)
__pmAPIConfig(sflag ? export_report : direct_report);
else
__pmConfig(sflag ? pcp_conf_shell_extract : pcp_conf_extract);
exit(0);
}
/* an explicit list of variables has been requested */
if (sflag) {
if (apiflag)
for (c = opts.optind; c < argc; c++)
export_report(argv[c], __pmGetAPIConfig(argv[c]));
else
for (c = opts.optind; c < argc; c++)
export_report(argv[c], pmGetConfig(argv[c]));
} else {
if (apiflag)
for (c = opts.optind; c < argc; c++)
direct_report(argv[c], __pmGetAPIConfig(argv[c]));
else
for (c = opts.optind; c < argc; c++)
direct_report(argv[c], pmGetConfig(argv[c]));
}
exit(0);
}
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