diff options
Diffstat (limited to 'mdk-stage1/params.c')
| -rw-r--r-- | mdk-stage1/params.c | 175 |
1 files changed, 175 insertions, 0 deletions
diff --git a/mdk-stage1/params.c b/mdk-stage1/params.c new file mode 100644 index 000000000..9398759ab --- /dev/null +++ b/mdk-stage1/params.c @@ -0,0 +1,175 @@ +/* + * Guillaume Cottenceau (gc) + * + * Copyright 2000 Mandriva + * + * This software may be freely redistributed under the terms of the GNU + * public license. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <fcntl.h> +#include "params.h" +#include "utils.h" +#include "automatic.h" +#include "log.h" + +static struct param_elem params[50]; +static int param_number = 0; + +void process_cmdline(void) +{ + char buf[512]; + int size, i; + int fd = -1; + + if (IS_TESTING) { + log_message("TESTING: opening cmdline... "); + + if ((fd = open("cmdline", O_RDONLY)) == -1) + log_message("TESTING: could not open cmdline"); + } + + if (fd == -1) { + log_message("opening /proc/cmdline... "); + + if ((fd = open("/proc/cmdline", O_RDONLY)) == -1) + fatal_error("could not open /proc/cmdline"); + } + + size = read(fd, buf, sizeof(buf)); + buf[size-1] = '\0'; // -1 to eat the \n + close(fd); + + log_message("\t%s", buf); + + i = 0; + while (buf[i] != '\0') { + char *name, *value = NULL; + int j = i; + while (buf[i] != ' ' && buf[i] != '=' && buf[i] != '\0') + i++; + if (i == j) { + i++; + continue; + } + name = _memdup(&buf[j], i-j + 1); + name[i-j] = '\0'; + + if (buf[i] == '=') { + int k = i+1; + i++; + while (buf[i] != ' ' && buf[i] != '\0') + i++; + value = _memdup(&buf[k], i-k + 1); + value[i-k] = '\0'; + } + + params[param_number].name = name; + params[param_number].value = value; + param_number++; + if (!strcmp(name, "changedisk")) set_param(MODE_CHANGEDISK); + if (!strcmp(name, "updatemodules") || + !strcmp(name, "thirdparty")) set_param(MODE_THIRDPARTY); + if (!strcmp(name, "rescue") || + !strcmp(name, "kamethod")) set_param(MODE_RESCUE); + if (!strcmp(name, "rescue")) set_param(MODE_RESCUE); + if (!strcmp(name, "keepmounted")) set_param(MODE_KEEP_MOUNTED); + if (!strcmp(name, "noauto")) set_param(MODE_NOAUTO); + if (!strcmp(name, "netauto")) set_param(MODE_NETAUTO); + if (!strcmp(name, "debugstage1")) set_param(MODE_DEBUGSTAGE1); + if (!strcmp(name, "automatic")) { + set_param(MODE_AUTOMATIC); + grab_automatic_params(value); + } + if (buf[i] == '\0') + break; + i++; + } + + if (IS_AUTOMATIC && strcmp(get_auto_value("thirdparty"), "")) { + set_param(MODE_THIRDPARTY); + } + + log_message("\tgot %d args", param_number); +} + + +int stage1_mode = 0; + +int get_param(int i) +{ +#ifdef SPAWN_INTERACTIVE + static int fd = 0; + char buf[5000]; + char * ptr; + int nb; + + if (fd <= 0) { + fd = open(interactive_fifo, O_RDONLY); + if (fd == -1) + return (stage1_mode & i); + fcntl(fd, F_SETFL, O_NONBLOCK); + } + + if (fd > 0) { + if ((nb = read(fd, buf, sizeof(buf))) > 0) { + buf[nb] = '\0'; + ptr = buf; + while ((ptr = strstr(ptr, "+ "))) { + if (!strncmp(ptr+2, "rescue", 6)) set_param(MODE_RESCUE); + ptr++; + } + ptr = buf; + while ((ptr = strstr(ptr, "- "))) { + if (!strncmp(ptr+2, "rescue", 6)) unset_param(MODE_RESCUE); + ptr++; + } + } + } +#endif + + return (stage1_mode & i); +} + +char * get_param_valued(char *param_name) +{ + int i; + for (i = 0; i < param_number ; i++) + if (!strcmp(params[i].name, param_name)) + return params[i].value; + + return NULL; +} + +void set_param_valued(char *param_name, char *param_value) +{ + params[param_number].name = param_name; + params[param_number].value = param_value; + param_number++; +} + +void set_param(int i) +{ + stage1_mode |= i; +} + +void unset_param(int i) +{ + stage1_mode &= ~i; +} + +void unset_automatic(void) +{ + log_message("unsetting automatic"); + unset_param(MODE_AUTOMATIC); +} |