diff options
Diffstat (limited to 'util')
| -rw-r--r-- | util/Makefile.objs | 1 | ||||
| -rw-r--r-- | util/oslib-posix.c | 23 | ||||
| -rw-r--r-- | util/oslib-win32.c | 19 | ||||
| -rw-r--r-- | util/qemu-config.c | 100 | ||||
| -rw-r--r-- | util/qemu-progress.c | 11 | ||||
| -rw-r--r-- | util/readline.c | 495 |
6 files changed, 648 insertions, 1 deletions
diff --git a/util/Makefile.objs b/util/Makefile.objs index af3e5cb157..937376b082 100644 --- a/util/Makefile.objs +++ b/util/Makefile.objs @@ -13,3 +13,4 @@ util-obj-y += hexdump.o util-obj-y += crc32c.o util-obj-y += throttle.o util-obj-y += getauxval.o +util-obj-y += readline.o diff --git a/util/oslib-posix.c b/util/oslib-posix.c index e00a44c86f..d5dca4729a 100644 --- a/util/oslib-posix.c +++ b/util/oslib-posix.c @@ -47,6 +47,9 @@ extern int daemon(int, int); # define QEMU_VMALLOC_ALIGN getpagesize() #endif +#include <termios.h> +#include <unistd.h> + #include <glib/gprintf.h> #include "config-host.h" @@ -85,6 +88,11 @@ void *qemu_oom_check(void *ptr) void *qemu_memalign(size_t alignment, size_t size) { void *ptr; + + if (alignment < sizeof(void*)) { + alignment = sizeof(void*); + } + #if defined(_POSIX_C_SOURCE) && !defined(__sun__) int ret; ret = posix_memalign(&ptr, alignment, size); @@ -251,3 +259,18 @@ qemu_get_local_state_pathname(const char *relative_pathname) return g_strdup_printf("%s/%s", CONFIG_QEMU_LOCALSTATEDIR, relative_pathname); } + +void qemu_set_tty_echo(int fd, bool echo) +{ + struct termios tty; + + tcgetattr(fd, &tty); + + if (echo) { + tty.c_lflag |= ECHO | ECHONL | ICANON | IEXTEN; + } else { + tty.c_lflag &= ~(ECHO | ECHONL | ICANON | IEXTEN); + } + + tcsetattr(fd, TCSANOW, &tty); +} diff --git a/util/oslib-win32.c b/util/oslib-win32.c index 776ccfaaf0..50be0440f2 100644 --- a/util/oslib-win32.c +++ b/util/oslib-win32.c @@ -189,3 +189,22 @@ qemu_get_local_state_pathname(const char *relative_pathname) return g_strdup_printf("%s" G_DIR_SEPARATOR_S "%s", base_path, relative_pathname); } + +void qemu_set_tty_echo(int fd, bool echo) +{ + HANDLE handle = (HANDLE)_get_osfhandle(fd); + DWORD dwMode = 0; + + if (handle == INVALID_HANDLE_VALUE) { + return; + } + + GetConsoleMode(handle, &dwMode); + + if (echo) { + SetConsoleMode(handle, dwMode | ENABLE_ECHO_INPUT | ENABLE_LINE_INPUT); + } else { + SetConsoleMode(handle, + dwMode & ~(ENABLE_ECHO_INPUT | ENABLE_LINE_INPUT)); + } +} diff --git a/util/qemu-config.c b/util/qemu-config.c index 7973659518..9298f55ecf 100644 --- a/util/qemu-config.c +++ b/util/qemu-config.c @@ -356,3 +356,103 @@ int qemu_read_config_file(const char *filename) return -EINVAL; } } + +static void config_parse_qdict_section(QDict *options, QemuOptsList *opts, + Error **errp) +{ + QemuOpts *subopts; + QDict *subqdict; + QList *list = NULL; + Error *local_err = NULL; + size_t orig_size, enum_size; + char *prefix; + + prefix = g_strdup_printf("%s.", opts->name); + qdict_extract_subqdict(options, &subqdict, prefix); + g_free(prefix); + orig_size = qdict_size(subqdict); + if (!orig_size) { + goto out; + } + + subopts = qemu_opts_create(opts, NULL, 0, &local_err); + if (error_is_set(&local_err)) { + error_propagate(errp, local_err); + goto out; + } + + qemu_opts_absorb_qdict(subopts, subqdict, &local_err); + if (error_is_set(&local_err)) { + error_propagate(errp, local_err); + goto out; + } + + enum_size = qdict_size(subqdict); + if (enum_size < orig_size && enum_size) { + error_setg(errp, "Unknown option '%s' for [%s]", + qdict_first(subqdict)->key, opts->name); + goto out; + } + + if (enum_size) { + /* Multiple, enumerated sections */ + QListEntry *list_entry; + unsigned i = 0; + + /* Not required anymore */ + qemu_opts_del(subopts); + + qdict_array_split(subqdict, &list); + if (qdict_size(subqdict)) { + error_setg(errp, "Unused option '%s' for [%s]", + qdict_first(subqdict)->key, opts->name); + goto out; + } + + QLIST_FOREACH_ENTRY(list, list_entry) { + QDict *section = qobject_to_qdict(qlist_entry_obj(list_entry)); + char *opt_name; + + opt_name = g_strdup_printf("%s.%u", opts->name, i++); + subopts = qemu_opts_create(opts, opt_name, 1, &local_err); + g_free(opt_name); + if (error_is_set(&local_err)) { + error_propagate(errp, local_err); + goto out; + } + + qemu_opts_absorb_qdict(subopts, section, &local_err); + if (error_is_set(&local_err)) { + error_propagate(errp, local_err); + qemu_opts_del(subopts); + goto out; + } + + if (qdict_size(section)) { + error_setg(errp, "[%s] section doesn't support the option '%s'", + opts->name, qdict_first(section)->key); + qemu_opts_del(subopts); + goto out; + } + } + } + +out: + QDECREF(subqdict); + QDECREF(list); +} + +void qemu_config_parse_qdict(QDict *options, QemuOptsList **lists, + Error **errp) +{ + int i; + Error *local_err = NULL; + + for (i = 0; lists[i]; i++) { + config_parse_qdict_section(options, lists[i], &local_err); + if (error_is_set(&local_err)) { + error_propagate(errp, local_err); + return; + } + } +} diff --git a/util/qemu-progress.c b/util/qemu-progress.c index 9a3f96cd47..4ee5cd07f2 100644 --- a/util/qemu-progress.c +++ b/util/qemu-progress.c @@ -24,7 +24,6 @@ #include "qemu-common.h" #include "qemu/osdep.h" -#include "sysemu/sysemu.h" #include <stdio.h> struct progress_state { @@ -83,12 +82,22 @@ static void progress_dummy_init(void) { #ifdef CONFIG_POSIX struct sigaction action; + sigset_t set; memset(&action, 0, sizeof(action)); sigfillset(&action.sa_mask); action.sa_handler = sigusr_print; action.sa_flags = 0; sigaction(SIGUSR1, &action, NULL); + + /* + * SIGUSR1 is SIG_IPI and gets blocked in qemu_init_main_loop(). In the + * tools that use the progress report SIGUSR1 isn't used in this meaning + * and instead should print the progress, so reenable it. + */ + sigemptyset(&set); + sigaddset(&set, SIGUSR1); + pthread_sigmask(SIG_UNBLOCK, &set, NULL); #endif state.print = progress_dummy_print; diff --git a/util/readline.c b/util/readline.c new file mode 100644 index 0000000000..8441be484c --- /dev/null +++ b/util/readline.c @@ -0,0 +1,495 @@ +/* + * QEMU readline utility + * + * Copyright (c) 2003-2004 Fabrice Bellard + * + * 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 "qemu-common.h" +#include "qemu/readline.h" + +#define IS_NORM 0 +#define IS_ESC 1 +#define IS_CSI 2 +#define IS_SS3 3 + +void readline_show_prompt(ReadLineState *rs) +{ + rs->printf_func(rs->opaque, "%s", rs->prompt); + rs->flush_func(rs->opaque); + rs->last_cmd_buf_index = 0; + rs->last_cmd_buf_size = 0; + rs->esc_state = IS_NORM; +} + +/* update the displayed command line */ +static void readline_update(ReadLineState *rs) +{ + int i, delta, len; + + if (rs->cmd_buf_size != rs->last_cmd_buf_size || + memcmp(rs->cmd_buf, rs->last_cmd_buf, rs->cmd_buf_size) != 0) { + for(i = 0; i < rs->last_cmd_buf_index; i++) { + rs->printf_func(rs->opaque, "\033[D"); + } + rs->cmd_buf[rs->cmd_buf_size] = '\0'; + if (rs->read_password) { + len = strlen(rs->cmd_buf); + for(i = 0; i < len; i++) + rs->printf_func(rs->opaque, "*"); + } else { + rs->printf_func(rs->opaque, "%s", rs->cmd_buf); + } + rs->printf_func(rs->opaque, "\033[K"); + memcpy(rs->last_cmd_buf, rs->cmd_buf, rs->cmd_buf_size); + rs->last_cmd_buf_size = rs->cmd_buf_size; + rs->last_cmd_buf_index = rs->cmd_buf_size; + } + if (rs->cmd_buf_index != rs->last_cmd_buf_index) { + delta = rs->cmd_buf_index - rs->last_cmd_buf_index; + if (delta > 0) { + for(i = 0;i < delta; i++) { + rs->printf_func(rs->opaque, "\033[C"); + } + } else { + delta = -delta; + for(i = 0;i < delta; i++) { + rs->printf_func(rs->opaque, "\033[D"); + } + } + rs->last_cmd_buf_index = rs->cmd_buf_index; + } + rs->flush_func(rs->opaque); +} + +static void readline_insert_char(ReadLineState *rs, int ch) +{ + if (rs->cmd_buf_index < READLINE_CMD_BUF_SIZE) { + memmove(rs->cmd_buf + rs->cmd_buf_index + 1, + rs->cmd_buf + rs->cmd_buf_index, + rs->cmd_buf_size - rs->cmd_buf_index); + rs->cmd_buf[rs->cmd_buf_index] = ch; + rs->cmd_buf_size++; + rs->cmd_buf_index++; + } +} + +static void readline_backward_char(ReadLineState *rs) +{ + if (rs->cmd_buf_index > 0) { + rs->cmd_buf_index--; + } +} + +static void readline_forward_char(ReadLineState *rs) +{ + if (rs->cmd_buf_index < rs->cmd_buf_size) { + rs->cmd_buf_index++; + } +} + +static void readline_delete_char(ReadLineState *rs) +{ + if (rs->cmd_buf_index < rs->cmd_buf_size) { + memmove(rs->cmd_buf + rs->cmd_buf_index, + rs->cmd_buf + rs->cmd_buf_index + 1, + rs->cmd_buf_size - rs->cmd_buf_index - 1); + rs->cmd_buf_size--; + } +} + +static void readline_backspace(ReadLineState *rs) +{ + if (rs->cmd_buf_index > 0) { + readline_backward_char(rs); + readline_delete_char(rs); + } +} + +static void readline_backword(ReadLineState *rs) +{ + int start; + + if (rs->cmd_buf_index == 0 || rs->cmd_buf_index > rs->cmd_buf_size) { + return; + } + + start = rs->cmd_buf_index - 1; + + /* find first word (backwards) */ + while (start > 0) { + if (!qemu_isspace(rs->cmd_buf[start])) { + break; + } + + --start; + } + + /* find first space (backwards) */ + while (start > 0) { + if (qemu_isspace(rs->cmd_buf[start])) { + ++start; + break; + } + + --start; + } + + /* remove word */ + if (start < rs->cmd_buf_index) { + memmove(rs->cmd_buf + start, + rs->cmd_buf + rs->cmd_buf_index, + rs->cmd_buf_size - rs->cmd_buf_index); + rs->cmd_buf_size -= rs->cmd_buf_index - start; + rs->cmd_buf_index = start; + } +} + +static void readline_bol(ReadLineState *rs) +{ + rs->cmd_buf_index = 0; +} + +static void readline_eol(ReadLineState *rs) +{ + rs->cmd_buf_index = rs->cmd_buf_size; +} + +static void readline_up_char(ReadLineState *rs) +{ + int idx; + + if (rs->hist_entry == 0) + return; + if (rs->hist_entry == -1) { + /* Find latest entry */ + for (idx = 0; idx < READLINE_MAX_CMDS; idx++) { + if (rs->history[idx] == NULL) + break; + } + rs->hist_entry = idx; + } + rs->hist_entry--; + if (rs->hist_entry >= 0) { + pstrcpy(rs->cmd_buf, sizeof(rs->cmd_buf), + rs->history[rs->hist_entry]); + rs->cmd_buf_index = rs->cmd_buf_size = strlen(rs->cmd_buf); + } +} + +static void readline_down_char(ReadLineState *rs) +{ + if (rs->hist_entry == -1) + return; + if (rs->hist_entry < READLINE_MAX_CMDS - 1 && + rs->history[++rs->hist_entry] != NULL) { + pstrcpy(rs->cmd_buf, sizeof(rs->cmd_buf), + rs->history[rs->hist_entry]); + } else { + rs->cmd_buf[0] = 0; + rs->hist_entry = -1; + } + rs->cmd_buf_index = rs->cmd_buf_size = strlen(rs->cmd_buf); +} + +static void readline_hist_add(ReadLineState *rs, const char *cmdline) +{ + char *hist_entry, *new_entry; + int idx; + + if (cmdline[0] == '\0') + return; + new_entry = NULL; + if (rs->hist_entry != -1) { + /* We were editing an existing history entry: replace it */ + hist_entry = rs->history[rs->hist_entry]; + idx = rs->hist_entry; + if (strcmp(hist_entry, cmdline) == 0) { + goto same_entry; + } + } + /* Search cmdline in history buffers */ + for (idx = 0; idx < READLINE_MAX_CMDS; idx++) { + hist_entry = rs->history[idx]; + if (hist_entry == NULL) + break; + if (strcmp(hist_entry, cmdline) == 0) { + same_entry: + new_entry = hist_entry; + /* Put this entry at the end of history */ + memmove(&rs->history[idx], &rs->history[idx + 1], + (READLINE_MAX_CMDS - (idx + 1)) * sizeof(char *)); + rs->history[READLINE_MAX_CMDS - 1] = NULL; + for (; idx < READLINE_MAX_CMDS; idx++) { + if (rs->history[idx] == NULL) + break; + } + break; + } + } + if (idx == READLINE_MAX_CMDS) { + /* Need to get one free slot */ + g_free(rs->history[0]); + memmove(rs->history, &rs->history[1], + (READLINE_MAX_CMDS - 1) * sizeof(char *)); + rs->history[READLINE_MAX_CMDS - 1] = NULL; + idx = READLINE_MAX_CMDS - 1; + } + if (new_entry == NULL) + new_entry = g_strdup(cmdline); + rs->history[idx] = new_entry; + rs->hist_entry = -1; +} + +/* completion support */ + +void readline_add_completion(ReadLineState *rs, const char *str) +{ + if (rs->nb_completions < READLINE_MAX_COMPLETIONS) { + rs->completions[rs->nb_completions++] = g_strdup(str); + } +} + +void readline_set_completion_index(ReadLineState *rs, int index) +{ + rs->completion_index = index; +} + +static void readline_completion(ReadLineState *rs) +{ + int len, i, j, max_width, nb_cols, max_prefix; + char *cmdline; + + rs->nb_completions = 0; + + cmdline = g_malloc(rs->cmd_buf_index + 1); + memcpy(cmdline, rs->cmd_buf, rs->cmd_buf_index); + cmdline[rs->cmd_buf_index] = '\0'; + rs->completion_finder(rs->opaque, cmdline); + g_free(cmdline); + + /* no completion found */ + if (rs->nb_completions <= 0) + return; + if (rs->nb_completions == 1) { + len = strlen(rs->completions[0]); + for(i = rs->completion_index; i < len; i++) { + readline_insert_char(rs, rs->completions[0][i]); + } + /* extra space for next argument. XXX: make it more generic */ + if (len > 0 && rs->completions[0][len - 1] != '/') + readline_insert_char(rs, ' '); + } else { + rs->printf_func(rs->opaque, "\n"); + max_width = 0; + max_prefix = 0; + for(i = 0; i < rs->nb_completions; i++) { + len = strlen(rs->completions[i]); + if (i==0) { + max_prefix = len; + } else { + if (len < max_prefix) + max_prefix = len; + for(j=0; j<max_prefix; j++) { + if (rs->completions[i][j] != rs->completions[0][j]) + max_prefix = j; + } + } + if (len > max_width) + max_width = len; + } + if (max_prefix > 0) + for(i = rs->completion_index; i < max_prefix; i++) { + readline_insert_char(rs, rs->completions[0][i]); + } + max_width += 2; + if (max_width < 10) + max_width = 10; + else if (max_width > 80) + max_width = 80; + nb_cols = 80 / max_width; + j = 0; + for(i = 0; i < rs->nb_completions; i++) { + rs->printf_func(rs->opaque, "%-*s", max_width, rs->completions[i]); + if (++j == nb_cols || i == (rs->nb_completions - 1)) { + rs->printf_func(rs->opaque, "\n"); + j = 0; + } + } + readline_show_prompt(rs); + } + for (i = 0; i < rs->nb_completions; i++) { + g_free(rs->completions[i]); + } +} + +/* return true if command handled */ +void readline_handle_byte(ReadLineState *rs, int ch) +{ + switch(rs->esc_state) { + case IS_NORM: + switch(ch) { + case 1: + readline_bol(rs); + break; + case 4: + readline_delete_char(rs); + break; + case 5: + readline_eol(rs); + break; + case 9: + readline_completion(rs); + break; + case 10: + case 13: + rs->cmd_buf[rs->cmd_buf_size] = '\0'; + if (!rs->read_password) + readline_hist_add(rs, rs->cmd_buf); + rs->printf_func(rs->opaque, "\n"); + rs->cmd_buf_index = 0; + rs->cmd_buf_size = 0; + rs->last_cmd_buf_index = 0; + rs->last_cmd_buf_size = 0; + rs->readline_func(rs->opaque, rs->cmd_buf, rs->readline_opaque); + break; + case 23: + /* ^W */ + readline_backword(rs); + break; + case 27: + rs->esc_state = IS_ESC; + break; + case 127: + case 8: + readline_backspace(rs); + break; + case 155: + rs->esc_state = IS_CSI; + break; + default: + if (ch >= 32) { + readline_insert_char(rs, ch); + } + break; + } + break; + case IS_ESC: + if (ch == '[') { + rs->esc_state = IS_CSI; + rs->esc_param = 0; + } else if (ch == 'O') { + rs->esc_state = IS_SS3; + rs->esc_param = 0; + } else { + rs->esc_state = IS_NORM; + } + break; + case IS_CSI: + switch(ch) { + case 'A': + case 'F': + readline_up_char(rs); + break; + case 'B': + case 'E': + readline_down_char(rs); + break; + case 'D': + readline_backward_char(rs); + break; + case 'C': + readline_forward_char(rs); + break; + case '0' ... '9': + rs->esc_param = rs->esc_param * 10 + (ch - '0'); + goto the_end; + case '~': + switch(rs->esc_param) { + case 1: + readline_bol(rs); + break; + case 3: + readline_delete_char(rs); + break; + case 4: + readline_eol(rs); + break; + } + break; + default: + break; + } + rs->esc_state = IS_NORM; + the_end: + break; + case IS_SS3: + switch(ch) { + case 'F': + readline_eol(rs); + break; + case 'H': + readline_bol(rs); + break; + } + rs->esc_state = IS_NORM; + break; + } + readline_update(rs); +} + +void readline_start(ReadLineState *rs, const char *prompt, int read_password, + ReadLineFunc *readline_func, void *opaque) +{ + pstrcpy(rs->prompt, sizeof(rs->prompt), prompt); + rs->readline_func = readline_func; + rs->readline_opaque = opaque; + rs->read_password = read_password; + readline_restart(rs); +} + +void readline_restart(ReadLineState *rs) +{ + rs->cmd_buf_index = 0; + rs->cmd_buf_size = 0; +} + +const char *readline_get_history(ReadLineState *rs, unsigned int index) +{ + if (index >= READLINE_MAX_CMDS) + return NULL; + return rs->history[index]; +} + +ReadLineState *readline_init(ReadLinePrintfFunc *printf_func, + ReadLineFlushFunc *flush_func, + void *opaque, + ReadLineCompletionFunc *completion_finder) +{ + ReadLineState *rs = g_malloc0(sizeof(*rs)); + + rs->hist_entry = -1; + rs->opaque = opaque; + rs->printf_func = printf_func; + rs->flush_func = flush_func; + rs->completion_finder = completion_finder; + + return rs; +} |