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Diffstat (limited to 'contrib/syslinux-4.02/com32/hdt/hdt-common.c')
-rw-r--r--contrib/syslinux-4.02/com32/hdt/hdt-common.c666
1 files changed, 666 insertions, 0 deletions
diff --git a/contrib/syslinux-4.02/com32/hdt/hdt-common.c b/contrib/syslinux-4.02/com32/hdt/hdt-common.c
new file mode 100644
index 0000000..5a187f2
--- /dev/null
+++ b/contrib/syslinux-4.02/com32/hdt/hdt-common.c
@@ -0,0 +1,666 @@
+/* ----------------------------------------------------------------------- *
+ *
+ * Copyright 2009 Erwan Velu - All Rights Reserved
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom
+ * the Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall
+ * be included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * -----------------------------------------------------------------------
+*/
+
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#include <getkey.h>
+#include "syslinux/config.h"
+#include "../lib/sys/vesa/vesa.h"
+#include "hdt-common.h"
+#include <disk/util.h>
+#include <disk/mbrs.h>
+#include <memory.h>
+
+/* ISOlinux requires a 8.3 format */
+void convert_isolinux_filename(char *filename, struct s_hardware *hardware)
+{
+ /* Exit if we are not running ISOLINUX */
+ if (hardware->sv->filesystem != SYSLINUX_FS_ISOLINUX)
+ return;
+ /* Searching the dot */
+ char *dot = strchr(filename, '.');
+ /* Exiting if no dot exists in that string */
+ if (dot == NULL)
+ return;
+ /* Exiting if the extension is 3 char or less */
+ if (strlen(dot) <= 4)
+ return;
+
+ /* We have an extension bigger than .blah
+ * so we have to shorten it to 3*/
+ dot[4] = '\0';
+}
+
+void detect_parameters(const int argc, const char *argv[],
+ struct s_hardware *hardware)
+{
+ /* Quiet mode - make the output more quiet */
+ quiet = false;
+
+ /* Vesa mode isn't set until we explictly call it */
+ vesamode = false;
+
+ for (int i = 1; i < argc; i++) {
+ if (!strncmp(argv[i], "quiet", 5)) {
+ quiet = true;
+ } else if (!strncmp(argv[i], "modules_pcimap=", 15)) {
+ strlcpy(hardware->modules_pcimap_path, argv[i] + 15,
+ sizeof(hardware->modules_pcimap_path));
+ convert_isolinux_filename(hardware->modules_pcimap_path, hardware);
+ } else if (!strncmp(argv[i], "pciids=", 7)) {
+ strlcpy(hardware->pciids_path, argv[i] + 7,
+ sizeof(hardware->pciids_path));
+ convert_isolinux_filename(hardware->pciids_path, hardware);
+ } else if (!strncmp(argv[i], "modules_alias=", 14)) {
+ strlcpy(hardware->modules_alias_path, argv[i] + 14,
+ sizeof(hardware->modules_alias_path));
+ convert_isolinux_filename(hardware->modules_alias_path, hardware);
+ } else if (!strncmp(argv[i], "memtest=", 8)) {
+ strlcpy(hardware->memtest_label, argv[i] + 8,
+ sizeof(hardware->memtest_label));
+ convert_isolinux_filename(hardware->memtest_label, hardware);
+ } else if (!strncmp(argv[i], "vesa", 4)) {
+ vesamode = true;
+ max_console_lines = MAX_CLI_LINES;
+ /* If the user defines a background image */
+ if (!strncmp(argv[i], "vesa=", 5)) {
+ strlcpy(hardware->vesa_background, argv[i] + 5,
+ sizeof(hardware->vesa_background));
+ }
+ } else if (!strncmp(argv[i], "novesa", 6)) {
+ vesamode = false;
+ max_console_lines = MAX_VESA_CLI_LINES;
+ } else if (!strncmp(argv[i], "auto=", 5)) {
+ /* The auto= parameter is separated in several argv[]
+ * as it can contains spaces.
+ * We use the AUTO_DELIMITER char to define the limits
+ * of this parameter.
+ * i.e auto='show dmi; show pci'
+ */
+
+ /* Extracting the first parameter */
+ strcpy(hardware->auto_label, argv[i] + 6);
+ strcat(hardware->auto_label, " ");
+ char *pos;
+ i++;
+
+ /* While we can't find the other AUTO_DELIMITER, let's process the argv[] */
+ while (((pos = strstr(argv[i], AUTO_DELIMITER)) == NULL)
+ && (i < argc)) {
+ strcat(hardware->auto_label, argv[i]);
+ strcat(hardware->auto_label, " ");
+ i++;
+ }
+
+ /* If we didn't reach the end of the line, let's grab the last item */
+ if (i < argc) {
+ strcat(hardware->auto_label, argv[i]);
+ hardware->auto_label[strlen(hardware->auto_label) - 1] = 0;
+ }
+ }
+ }
+}
+
+void detect_syslinux(struct s_hardware *hardware)
+{
+ hardware->sv = syslinux_version();
+ switch (hardware->sv->filesystem) {
+ case SYSLINUX_FS_SYSLINUX:
+ strlcpy(hardware->syslinux_fs, "SYSlinux", 9);
+ break;
+ case SYSLINUX_FS_PXELINUX:
+ strlcpy(hardware->syslinux_fs, "PXElinux", 9);
+ break;
+ case SYSLINUX_FS_ISOLINUX:
+ strlcpy(hardware->syslinux_fs, "ISOlinux", 9);
+ break;
+ case SYSLINUX_FS_EXTLINUX:
+ strlcpy(hardware->syslinux_fs, "EXTlinux", 9);
+ break;
+ case SYSLINUX_FS_UNKNOWN:
+ default:
+ strlcpy(hardware->syslinux_fs, "Unknown Bootloader",
+ sizeof hardware->syslinux_fs);
+ break;
+ }
+}
+
+void init_hardware(struct s_hardware *hardware)
+{
+ hardware->pci_ids_return_code = 0;
+ hardware->modules_pcimap_return_code = 0;
+ hardware->modules_alias_return_code = 0;
+ hardware->cpu_detection = false;
+ hardware->pci_detection = false;
+ hardware->disk_detection = false;
+ hardware->disks_count = 0;
+ hardware->dmi_detection = false;
+ hardware->pxe_detection = false;
+ hardware->vesa_detection = false;
+ hardware->vpd_detection = false;
+ hardware->memory_detection = false;
+ hardware->nb_pci_devices = 0;
+ hardware->is_dmi_valid = false;
+ hardware->is_pxe_valid = false;
+ hardware->is_vpd_valid = false;
+ hardware->pci_domain = NULL;
+ hardware->detected_memory_size = 0;
+
+ /* Cleaning structures */
+ memset(hardware->disk_info, 0, sizeof(hardware->disk_info));
+ memset(hardware->mbr_ids, 0, sizeof(hardware->mbr_ids));
+ memset(&hardware->dmi, 0, sizeof(s_dmi));
+ memset(&hardware->cpu, 0, sizeof(s_cpu));
+ memset(&hardware->pxe, 0, sizeof(struct s_pxe));
+ memset(&hardware->vesa, 0, sizeof(struct s_vesa));
+ memset(&hardware->vpd, 0, sizeof(s_vpd));
+ memset(hardware->syslinux_fs, 0, sizeof hardware->syslinux_fs);
+ memset(hardware->pciids_path, 0, sizeof hardware->pciids_path);
+ memset(hardware->modules_pcimap_path, 0,
+ sizeof hardware->modules_pcimap_path);
+ memset(hardware->modules_alias_path, 0,
+ sizeof hardware->modules_alias_path);
+ memset(hardware->memtest_label, 0, sizeof hardware->memtest_label);
+ memset(hardware->auto_label, 0, sizeof hardware->auto_label);
+ memset(hardware->vesa_background, 0, sizeof hardware->vesa_background);
+ strcat(hardware->pciids_path, "pci.ids");
+ strcat(hardware->modules_pcimap_path, "modules.pcimap");
+ strcat(hardware->modules_alias_path, "modules.alias");
+ strcat(hardware->memtest_label, "memtest");
+ strlcpy(hardware->vesa_background, CLI_DEFAULT_BACKGROUND,
+ sizeof(hardware->vesa_background));
+}
+
+/*
+ * Detecting if a DMI table exist
+ * if yes, let's parse it
+ */
+int detect_dmi(struct s_hardware *hardware)
+{
+ if (hardware->dmi_detection == true)
+ return -1;
+ hardware->dmi_detection = true;
+ if (dmi_iterate(&hardware->dmi) == -ENODMITABLE) {
+ hardware->is_dmi_valid = false;
+ return -ENODMITABLE;
+ }
+
+ parse_dmitable(&hardware->dmi);
+ hardware->is_dmi_valid = true;
+ return 0;
+}
+
+/**
+ * vpd_detection - populate the VPD structure
+ *
+ * VPD is a structure available on IBM machines.
+ * It is documented at:
+ * http://www.pc.ibm.com/qtechinfo/MIGR-45120.html
+ * (XXX the page seems to be gone)
+ **/
+int detect_vpd(struct s_hardware *hardware)
+{
+ if (hardware->vpd_detection)
+ return -1;
+ else
+ hardware->vpd_detection = true;
+
+ if (vpd_decode(&hardware->vpd) == -ENOVPDTABLE) {
+ hardware->is_vpd_valid = false;
+ return -ENOVPDTABLE;
+ } else {
+ hardware->is_vpd_valid = true;
+ return 0;
+ }
+}
+
+/* Detection vesa stuff*/
+int detect_vesa(struct s_hardware *hardware)
+{
+ static com32sys_t rm;
+ struct vesa_general_info *gi;
+ struct vesa_mode_info *mi;
+ uint16_t mode, *mode_ptr;
+ char *oem_ptr;
+
+ if (hardware->vesa_detection == true)
+ return -1;
+
+ hardware->vesa_detection = true;
+ hardware->is_vesa_valid = false;
+
+ /* Allocate space in the bounce buffer for these structures */
+ gi = &((struct vesa_info *)__com32.cs_bounce)->gi;
+ mi = &((struct vesa_info *)__com32.cs_bounce)->mi;
+
+ gi->signature = VBE2_MAGIC; /* Get VBE2 extended data */
+ rm.eax.w[0] = 0x4F00; /* Get SVGA general information */
+ rm.edi.w[0] = OFFS(gi);
+ rm.es = SEG(gi);
+ __intcall(0x10, &rm, &rm);
+
+ if (rm.eax.w[0] != 0x004F) {
+ return -1;
+ };
+
+ mode_ptr = GET_PTR(gi->video_mode_ptr);
+ oem_ptr = GET_PTR(gi->oem_vendor_name_ptr);
+ strlcpy(hardware->vesa.vendor, oem_ptr, sizeof(hardware->vesa.vendor));
+ oem_ptr = GET_PTR(gi->oem_product_name_ptr);
+ strlcpy(hardware->vesa.product, oem_ptr, sizeof(hardware->vesa.product));
+ oem_ptr = GET_PTR(gi->oem_product_rev_ptr);
+ strlcpy(hardware->vesa.product_revision, oem_ptr,
+ sizeof(hardware->vesa.product_revision));
+
+ hardware->vesa.major_version = (gi->version >> 8) & 0xff;
+ hardware->vesa.minor_version = gi->version & 0xff;
+ hardware->vesa.total_memory = gi->total_memory;
+ hardware->vesa.software_rev = gi->oem_software_rev;
+
+ hardware->vesa.vmi_count = 0;
+
+ while ((mode = *mode_ptr++) != 0xFFFF) {
+
+ rm.eax.w[0] = 0x4F01; /* Get SVGA mode information */
+ rm.ecx.w[0] = mode;
+ rm.edi.w[0] = OFFS(mi);
+ rm.es = SEG(mi);
+ __intcall(0x10, &rm, &rm);
+
+ /* Must be a supported mode */
+ if (rm.eax.w[0] != 0x004f)
+ continue;
+
+ /* Saving detected values */
+ memcpy(&hardware->vesa.vmi[hardware->vesa.vmi_count].mi, mi,
+ sizeof(struct vesa_mode_info));
+ hardware->vesa.vmi[hardware->vesa.vmi_count].mode = mode;
+
+ hardware->vesa.vmi_count++;
+ }
+ hardware->is_vesa_valid = true;
+ return 0;
+}
+
+/* Try to detect disks from port 0x80 to 0xff */
+void detect_disks(struct s_hardware *hardware)
+{
+ int i = -1;
+ int err;
+
+ if (hardware->disk_detection)
+ return;
+
+ hardware->disk_detection = true;
+ for (int drive = 0x80; drive < 0xff; drive++) {
+ i++;
+ hardware->disk_info[i].disk = drive;
+ err = get_drive_parameters(&hardware->disk_info[i]);
+
+ /*
+ * Do not print output when drive does not exist or
+ * doesn't support int13 (cdrom, ...)
+ */
+ if (err == -1 || !hardware->disk_info[i].cbios)
+ continue;
+
+ /* Detect MBR */
+ hardware->mbr_ids[i] = get_mbr_id(&hardware->disk_info[i]);
+
+ hardware->disks_count++;
+ }
+}
+
+int detect_pxe(struct s_hardware *hardware)
+{
+ void *dhcpdata;
+
+ size_t dhcplen;
+ t_PXENV_UNDI_GET_NIC_TYPE gnt;
+
+ if (hardware->pxe_detection == true)
+ return -1;
+ hardware->pxe_detection = true;
+ hardware->is_pxe_valid = false;
+ memset(&gnt, 0, sizeof(t_PXENV_UNDI_GET_NIC_TYPE));
+ memset(&hardware->pxe, 0, sizeof(struct s_pxe));
+
+ /* This code can only work if pxelinux is loaded */
+ if (hardware->sv->filesystem != SYSLINUX_FS_PXELINUX) {
+ return -1;
+ }
+// printf("PXE: PXElinux detected\n");
+ if (!pxe_get_cached_info(PXENV_PACKET_TYPE_DHCP_ACK, &dhcpdata, &dhcplen)) {
+ pxe_bootp_t *dhcp = &hardware->pxe.dhcpdata;
+ memcpy(&hardware->pxe.dhcpdata, dhcpdata,
+ sizeof(hardware->pxe.dhcpdata));
+ snprintf(hardware->pxe.mac_addr, sizeof(hardware->pxe.mac_addr),
+ "%02x:%02x:%02x:%02x:%02x:%02x", dhcp->CAddr[0],
+ dhcp->CAddr[1], dhcp->CAddr[2], dhcp->CAddr[3],
+ dhcp->CAddr[4], dhcp->CAddr[5]);
+
+ /* Saving our IP address in a easy format */
+ hardware->pxe.ip_addr[0] = hardware->pxe.dhcpdata.yip & 0xff;
+ hardware->pxe.ip_addr[1] = hardware->pxe.dhcpdata.yip >> 8 & 0xff;
+ hardware->pxe.ip_addr[2] = hardware->pxe.dhcpdata.yip >> 16 & 0xff;
+ hardware->pxe.ip_addr[3] = hardware->pxe.dhcpdata.yip >> 24 & 0xff;
+
+ if (!pxe_get_nic_type(&gnt)) {
+ switch (gnt.NicType) {
+ case PCI_NIC:
+ hardware->is_pxe_valid = true;
+ hardware->pxe.vendor_id = gnt.info.pci.Vendor_ID;
+ hardware->pxe.product_id = gnt.info.pci.Dev_ID;
+ hardware->pxe.subvendor_id = gnt.info.pci.SubVendor_ID;
+ hardware->pxe.subproduct_id =
+ gnt.info.pci.SubDevice_ID,
+ hardware->pxe.rev = gnt.info.pci.Rev;
+ hardware->pxe.pci_bus = (gnt.info.pci.BusDevFunc >> 8) & 0xff;
+ hardware->pxe.pci_dev = (gnt.info.pci.BusDevFunc >> 3) & 0x7;
+ hardware->pxe.pci_func = gnt.info.pci.BusDevFunc & 0x03;
+ hardware->pxe.base_class = gnt.info.pci.Base_Class;
+ hardware->pxe.sub_class = gnt.info.pci.Sub_Class;
+ hardware->pxe.prog_intf = gnt.info.pci.Prog_Intf;
+ hardware->pxe.nictype = gnt.NicType;
+ break;
+ case CardBus_NIC:
+ hardware->is_pxe_valid = true;
+ hardware->pxe.vendor_id = gnt.info.cardbus.Vendor_ID;
+ hardware->pxe.product_id = gnt.info.cardbus.Dev_ID;
+ hardware->pxe.subvendor_id = gnt.info.cardbus.SubVendor_ID;
+ hardware->pxe.subproduct_id =
+ gnt.info.cardbus.SubDevice_ID,
+ hardware->pxe.rev = gnt.info.cardbus.Rev;
+ hardware->pxe.pci_bus =
+ (gnt.info.cardbus.BusDevFunc >> 8) & 0xff;
+ hardware->pxe.pci_dev =
+ (gnt.info.cardbus.BusDevFunc >> 3) & 0x7;
+ hardware->pxe.pci_func = gnt.info.cardbus.BusDevFunc & 0x03;
+ hardware->pxe.base_class = gnt.info.cardbus.Base_Class;
+ hardware->pxe.sub_class = gnt.info.cardbus.Sub_Class;
+ hardware->pxe.prog_intf = gnt.info.cardbus.Prog_Intf;
+ hardware->pxe.nictype = gnt.NicType;
+ break;
+ case PnP_NIC:
+ default:
+ return -1;
+ break;
+ }
+ /* Let's try to find the associated pci device */
+ detect_pci(hardware);
+
+ /* The firt pass try to find the exact pci device */
+ hardware->pxe.pci_device = NULL;
+ hardware->pxe.pci_device_pos = 0;
+ struct pci_device *pci_device;
+ int pci_number = 0;
+ for_each_pci_func(pci_device, hardware->pci_domain) {
+ pci_number++;
+ if ((__pci_bus == hardware->pxe.pci_bus) &&
+ (__pci_slot == hardware->pxe.pci_dev) &&
+ (__pci_func == hardware->pxe.pci_func) &&
+ (pci_device->vendor == hardware->pxe.vendor_id)
+ && (pci_device->product == hardware->pxe.product_id)) {
+ hardware->pxe.pci_device = pci_device;
+ hardware->pxe.pci_device_pos = pci_number;
+ return 0;
+ }
+ }
+
+ /* If we reach that part, it means the pci device pointed by
+ * the pxe rom wasn't found in our list.
+ * Let's try to find the device only by its pci ids.
+ * The pci device we'll match is maybe not exactly the good one
+ * as we can have the same pci id several times.
+ * At least, the pci id, the vendor/product will be right.
+ * That's clearly a workaround for some weird cases.
+ * This should happend very unlikely */
+ hardware->pxe.pci_device = NULL;
+ hardware->pxe.pci_device_pos = 0;
+ pci_number = 0;
+ for_each_pci_func(pci_device, hardware->pci_domain) {
+ pci_number++;
+ if ((pci_device->vendor == hardware->pxe.vendor_id)
+ && (pci_device->product == hardware->pxe.product_id)) {
+ hardware->pxe.pci_device = pci_device;
+ hardware->pxe.pci_device_pos = pci_number;
+ return 0;
+ }
+ }
+
+ }
+ }
+ return 0;
+}
+
+void detect_memory(struct s_hardware *hardware) {
+ if (hardware->memory_detection == false) {
+ hardware->memory_detection = true;
+ hardware->detected_memory_size = detect_memsize();
+ }
+}
+
+void detect_pci(struct s_hardware *hardware)
+{
+ if (hardware->pci_detection == true)
+ return;
+ hardware->pci_detection = true;
+
+ hardware->nb_pci_devices = 0;
+
+ /* Scanning to detect pci buses and devices */
+ hardware->pci_domain = pci_scan();
+
+ if (!hardware->pci_domain)
+ return;
+
+ /* Gathering addtional information */
+ gather_additional_pci_config(hardware->pci_domain);
+
+ struct pci_device *pci_device;
+ for_each_pci_func(pci_device, hardware->pci_domain) {
+ hardware->nb_pci_devices++;
+ }
+
+ if (!quiet) {
+ more_printf("PCI: %d devices detected\n", hardware->nb_pci_devices);
+ more_printf("PCI: Resolving names\n");
+ }
+ /* Assigning product & vendor name for each device */
+ hardware->pci_ids_return_code =
+ get_name_from_pci_ids(hardware->pci_domain, hardware->pciids_path);
+
+ if (!quiet)
+ more_printf("PCI: Resolving class names\n");
+ /* Assigning class name for each device */
+ hardware->pci_ids_return_code =
+ get_class_name_from_pci_ids(hardware->pci_domain,
+ hardware->pciids_path);
+
+ if (!quiet)
+ more_printf("PCI: Resolving module names\n");
+ /* Detecting which kernel module should match each device using modules.pcimap */
+ hardware->modules_pcimap_return_code =
+ get_module_name_from_pcimap(hardware->pci_domain,
+ hardware->modules_pcimap_path);
+
+ /* Detecting which kernel module should match each device using modules.alias */
+ hardware->modules_alias_return_code =
+ get_module_name_from_alias(hardware->pci_domain,
+ hardware->modules_alias_path);
+
+ /* We try to detect the pxe stuff to populate the PXE: field of pci devices */
+ detect_pxe(hardware);
+}
+
+void cpu_detect(struct s_hardware *hardware)
+{
+ if (hardware->cpu_detection == true)
+ return;
+ detect_cpu(&hardware->cpu);
+ /* Old processors doesn't manage the identify commands
+ * Let's use the dmi value in that case */
+ if (strlen(remove_spaces(hardware->cpu.model)) == 0)
+ strlcpy(hardware->cpu.model, hardware->dmi.processor.version,
+ sizeof(hardware->cpu.model));
+
+ /* Some CPUs like to put many spaces in the model name
+ * That makes some weird display in console/menu
+ * Let's remove that mulitple spaces */
+ strlcpy(hardware->cpu.model,del_multi_spaces(hardware->cpu.model),sizeof(hardware->cpu.model));
+ hardware->cpu_detection = true;
+}
+
+/*
+ * Find the last instance of a particular command line argument
+ * (which should include the final =; do not use for boolean arguments)
+ */
+const char *find_argument(const char **argv, const char *argument)
+{
+ int la = strlen(argument);
+ const char **arg;
+ const char *ptr = NULL;
+
+ for (arg = argv; *arg; arg++) {
+ if (!memcmp(*arg, argument, la))
+ ptr = *arg + la;
+ }
+
+ return ptr;
+}
+
+void clear_screen(void)
+{
+ move_cursor_to_next_line();
+ disable_utf8();
+ set_g1_special_char();
+ set_us_g0_charset();
+ display_cursor(false);
+ clear_entire_screen();
+ gotoxy(0,0);
+ reset_more_printf();
+}
+
+/* remove begining spaces */
+char *skip_spaces(char *p)
+{
+ while (*p && *p <= ' ') {
+ p++;
+ }
+
+ return p;
+}
+
+/* remove trailing & begining spaces */
+char *remove_spaces(char *p)
+{
+ char *save = p;
+ p += strlen(p) - 1;
+ while (*p && *p <= ' ') {
+ *p = '\0';
+ p--;
+ }
+ p = save;
+ while (*p && *p <= ' ') {
+ p++;
+ }
+
+ return p;
+}
+
+/* remove trailing LF */
+char *remove_trailing_lf(char *p)
+{
+ char *save = p;
+ p += strlen(p) - 1;
+ while (*p && *p == 10) {
+ *p = '\0';
+ p--;
+ }
+ p = save;
+
+ return p;
+}
+
+/* delete multiple spaces, one is enough */
+char *del_multi_spaces(char *p)
+{
+ /* Saving the original pointer */
+ char *save = p;
+
+ /* Let's parse the complete string
+ * As we search for a double spacing
+ * we have to be sure then string is
+ * long enough to be processed */
+ while (*p && *p + 1) {
+
+ /* If we have two consecutive spaces */
+ if ((*p == ' ') && (*(p + 1) == ' ')) {
+
+ /* Let's copy to the current position
+ * the content from the second space*/
+ strlcpy(p, p + 1, strlen(p + 1));
+
+ /* The string is 1 char smaller */
+ *(p + strlen(p) - 1) = '\0';
+
+ /* Don't increment the pointer as we
+ * changed the content of the current position*/
+ continue;
+ }
+
+ /* Nothing as been found, let's see on the next char */
+ p++;
+ }
+ /* Returning the original pointer */
+ return save;
+}
+
+/* Reset the more_printf counter */
+void reset_more_printf(void)
+{
+ display_line_nb = 0;
+}
+
+int draw_background(const char *what)
+{
+ if (!what)
+ return vesacon_default_background();
+ else
+ return vesacon_load_background(what);
+}
+
+void init_console(struct s_hardware *hardware)
+{
+ if (vesamode) {
+ openconsole(&dev_rawcon_r, &dev_vesaserial_w);
+ draw_background(hardware->vesa_background);
+ } else
+ console_ansi_raw();
+}