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/*
* The PCI Utilities -- Common Functions
*
* Copyright (c) 1997--2016 Martin Mares <mj@ucw.cz>
*
* Can be freely distributed and used under the terms of the GNU GPL v2+.
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <stdarg.h>
#include "pciutils.h"
void NONRET
die(char *msg, ...)
{
va_list args;
va_start(args, msg);
fprintf(stderr, "%s: ", program_name);
vfprintf(stderr, msg, args);
fputc('\n', stderr);
exit(1);
}
void *
xmalloc(size_t howmuch)
{
void *p = malloc(howmuch);
if (!p)
die("Unable to allocate %d bytes of memory", (int) howmuch);
return p;
}
void *
xrealloc(void *ptr, size_t howmuch)
{
void *p = realloc(ptr, howmuch);
if (!p)
die("Unable to allocate %d bytes of memory", (int) howmuch);
return p;
}
char *
xstrdup(const char *str)
{
int len = strlen(str) + 1;
char *copy = xmalloc(len);
memcpy(copy, str, len);
return copy;
}
static void
set_pci_method(struct pci_access *pacc, char *arg)
{
char *name;
int i;
if (!strcmp(arg, "help"))
{
printf("Known PCI access methods:\n\n");
for (i=0; name = pci_get_method_name(i); i++)
if (name[0])
printf("%s\n", name);
exit(0);
}
else
{
i = pci_lookup_method(arg);
if (i < 0)
die("No such PCI access method: %s (see `-A help' for a list)", arg);
pacc->method = i;
}
}
static void
set_pci_option(struct pci_access *pacc, char *arg)
{
if (!strcmp(arg, "help"))
{
struct pci_param *p;
printf("Known PCI access parameters:\n\n");
for (p=NULL; p=pci_walk_params(pacc, p);)
printf("%-20s %s (%s)\n", p->param, p->help, p->value);
exit(0);
}
else
{
char *sep = strchr(arg, '=');
if (!sep)
die("Invalid PCI access parameter syntax: %s", arg);
*sep++ = 0;
if (pci_set_param(pacc, arg, sep) < 0)
die("Unrecognized PCI access parameter: %s (see `-O help' for a list)", arg);
}
}
int
parse_generic_option(int i, struct pci_access *pacc, char *arg)
{
switch (i)
{
#ifdef PCI_HAVE_PM_INTEL_CONF
case 'H':
if (!strcmp(arg, "1"))
pacc->method = PCI_ACCESS_I386_TYPE1;
else if (!strcmp(arg, "2"))
pacc->method = PCI_ACCESS_I386_TYPE2;
else
die("Unknown hardware configuration type %s", arg);
break;
#endif
#ifdef PCI_HAVE_PM_DUMP
case 'F':
pci_set_param(pacc, "dump.name", arg);
pacc->method = PCI_ACCESS_DUMP;
break;
#endif
case 'A':
set_pci_method(pacc, arg);
break;
case 'G':
pacc->debugging++;
break;
case 'O':
set_pci_option(pacc, arg);
break;
default:
return 0;
}
return 1;
}
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