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-rw-r--r--src/librc/librc-misc.c425
1 files changed, 0 insertions, 425 deletions
diff --git a/src/librc/librc-misc.c b/src/librc/librc-misc.c
deleted file mode 100644
index 2e9de801..00000000
--- a/src/librc/librc-misc.c
+++ /dev/null
@@ -1,425 +0,0 @@
-/*
- rc-misc.c
- rc misc functions
-*/
-
-/*
- * Copyright (c) 2007-2008 Roy Marples <roy@marples.name>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#include "queue.h"
-#include "librc.h"
-
-bool
-rc_yesno(const char *value)
-{
- if (!value) {
- errno = ENOENT;
- return false;
- }
-
- if (strcasecmp(value, "yes") == 0 ||
- strcasecmp(value, "y") == 0 ||
- strcasecmp(value, "true") == 0 ||
- strcasecmp(value, "1") == 0)
- return true;
-
- if (strcasecmp(value, "no") != 0 &&
- strcasecmp(value, "n") != 0 &&
- strcasecmp(value, "false") != 0 &&
- strcasecmp(value, "0") != 0)
- errno = EINVAL;
-
- return false;
-}
-librc_hidden_def(rc_yesno)
-
-
-/**
- * Read the entire @file into the buffer and set @len to the
- * size of the buffer when finished. For C strings, this will
- * be strlen(buffer) + 1.
- * Don't forget to free the buffer afterwards!
- */
-bool
-rc_getfile(const char *file, char **buffer, size_t *len)
-{
- bool ret = false;
- FILE *fp;
- int fd;
- struct stat st;
- size_t done, left;
-
- fp = fopen(file, "re");
- if (!fp)
- return false;
-
- /* assume fileno() never fails */
- fd = fileno(fp);
-
- if (fstat(fd, &st))
- goto finished;
-
- left = st.st_size;
- *len = left + 1; /* NUL terminator */
- *buffer = xrealloc(*buffer, *len);
- while (left) {
- done = fread(*buffer, sizeof(*buffer[0]), left, fp);
- if (done == 0 && ferror(fp))
- goto finished;
- left -= done;
- }
- ret = true;
-
- finished:
- if (!ret) {
- free(*buffer);
- *len = 0;
- } else
- (*buffer)[*len - 1] = '\0';
- fclose(fp);
- return ret;
-}
-librc_hidden_def(rc_getfile)
-
-ssize_t
-rc_getline(char **line, size_t *len, FILE *fp)
-{
- char *p;
- size_t last = 0;
-
- while (!feof(fp)) {
- if (*line == NULL || last != 0) {
- *len += BUFSIZ;
- *line = xrealloc(*line, *len);
- }
- p = *line + last;
- memset(p, 0, BUFSIZ);
- if (fgets(p, BUFSIZ, fp) == NULL)
- break;
- last += strlen(p);
- if (last && (*line)[last - 1] == '\n') {
- (*line)[last - 1] = '\0';
- break;
- }
- }
- return last;
-}
-librc_hidden_def(rc_getline)
-
-char *
-rc_proc_getent(const char *ent)
-{
-#ifdef __linux__
- FILE *fp;
- char *proc, *p, *value = NULL;
- size_t i, len;
-
- if (!exists("/proc/cmdline"))
- return NULL;
-
- if (!(fp = fopen("/proc/cmdline", "r")))
- return NULL;
-
- proc = NULL;
- i = 0;
- if (rc_getline(&proc, &i, fp) == -1 || proc == NULL)
- return NULL;
-
- if (proc != NULL) {
- len = strlen(ent);
-
- while ((p = strsep(&proc, " "))) {
- if (strncmp(ent, p, len) == 0 && (p[len] == '\0' || p[len] == ' ' || p[len] == '=')) {
- p += len;
-
- if (*p == '=')
- p++;
-
- value = xstrdup(p);
- }
- }
- }
-
- if (!value)
- errno = ENOENT;
-
- fclose(fp);
- free(proc);
-
- return value;
-#else
- return NULL;
-#endif
-}
-librc_hidden_def(rc_proc_getent)
-
-RC_STRINGLIST *
-rc_config_list(const char *file)
-{
- FILE *fp;
- char *buffer = NULL;
- size_t len = 0;
- char *p;
- char *token;
- RC_STRINGLIST *list = rc_stringlist_new();
-
- if (!(fp = fopen(file, "r")))
- return list;
-
- while ((rc_getline(&buffer, &len, fp))) {
- p = buffer;
- /* Strip leading spaces/tabs */
- while ((*p == ' ') || (*p == '\t'))
- p++;
-
- /* Get entry - we do not want comments */
- token = strsep(&p, "#");
- if (token && (strlen(token) > 1)) {
- /* If not variable assignment then skip */
- if (strchr(token, '=')) {
- /* Stip the newline if present */
- if (token[strlen(token) - 1] == '\n')
- token[strlen(token) - 1] = 0;
-
- rc_stringlist_add(list, token);
- }
- }
- }
- fclose(fp);
- free(buffer);
-
- return list;
-}
-librc_hidden_def(rc_config_list)
-
-/*
- * Override some specific rc.conf options on the kernel command line
- */
-#ifdef __linux__
-static RC_STRINGLIST *rc_config_override(RC_STRINGLIST *config)
-{
- RC_STRINGLIST *overrides;
- RC_STRING *cline, *override, *config_np;
- char *tmp = NULL;
- char *value = NULL;
- size_t varlen = 0;
- size_t len = 0;
-
- overrides = rc_stringlist_new();
-
- /* A list of variables which may be overridden on the kernel command line */
- rc_stringlist_add(overrides, "rc_parallel");
-
- TAILQ_FOREACH(override, overrides, entries) {
- varlen = strlen(override->value);
- value = rc_proc_getent(override->value);
-
- /* No need to continue if there's nothing to override */
- if (!value) {
- free(value);
- continue;
- }
-
- if (value != NULL) {
- len = varlen + strlen(value) + 2;
- tmp = xmalloc(sizeof(char) * len);
- snprintf(tmp, len, "%s=%s", override->value, value);
- }
-
- /*
- * Whenever necessary remove the old config entry first to prevent
- * duplicates
- */
- TAILQ_FOREACH_SAFE(cline, config, entries, config_np) {
- if (strncmp(override->value, cline->value, varlen) == 0
- && cline->value[varlen] == '=') {
- rc_stringlist_delete(config, cline->value);
- break;
- }
- }
-
- /* Add the option (var/value) to the current config */
- rc_stringlist_add(config, tmp);
-
- free(tmp);
- free(value);
- }
-
- rc_stringlist_free(overrides);
- return config;
-}
-#endif
-
-RC_STRINGLIST *
-rc_config_load(const char *file)
-{
- RC_STRINGLIST *list;
- RC_STRINGLIST *config;
- char *token;
- RC_STRING *line;
- RC_STRING *cline;
- size_t i = 0;
- bool replaced;
- char *entry;
- char *newline;
- char *p;
-
- list = rc_config_list(file);
- config = rc_stringlist_new();
- TAILQ_FOREACH(line, list, entries) {
- /* Get entry */
- p = line->value;
- if (! p)
- continue;
- if (strncmp(p, "export ", 7) == 0)
- p += 7;
- if (! (token = strsep(&p, "=")))
- continue;
-
- entry = xstrdup(token);
- /* Preserve shell coloring */
- if (*p == '$')
- token = line->value;
- else
- do {
- /* Bash variables are usually quoted */
- token = strsep(&p, "\"\'");
- } while (token && *token == '\0');
-
- /* Drop a newline if that's all we have */
- if (token) {
- i = strlen(token) - 1;
- if (token[i] == '\n')
- token[i] = 0;
-
- i = strlen(entry) + strlen(token) + 2;
- newline = xmalloc(sizeof(char) * i);
- snprintf(newline, i, "%s=%s", entry, token);
- } else {
- i = strlen(entry) + 2;
- newline = xmalloc(sizeof(char) * i);
- snprintf(newline, i, "%s=", entry);
- }
-
- replaced = false;
- /* In shells the last item takes precedence, so we need to remove
- any prior values we may already have */
- TAILQ_FOREACH(cline, config, entries) {
- i = strlen(entry);
- if (strncmp(entry, cline->value, i) == 0 && cline->value[i] == '=') {
- /* We have a match now - to save time we directly replace it */
- free(cline->value);
- cline->value = newline;
- replaced = true;
- break;
- }
- }
-
- if (!replaced) {
- rc_stringlist_add(config, newline);
- free(newline);
- }
- free(entry);
- }
- rc_stringlist_free(list);
-
-#ifdef __linux__
- /* Only override rc.conf settings */
- if (strcmp(file, RC_CONF) == 0) {
- config = rc_config_override(config);
- }
-#endif
-
- return config;
-}
-librc_hidden_def(rc_config_load)
-
-char *
-rc_config_value(RC_STRINGLIST *list, const char *entry)
-{
- RC_STRING *line;
- char *p;
- size_t len;
-
- len = strlen(entry);
- TAILQ_FOREACH(line, list, entries) {
- p = strchr(line->value, '=');
- if (p != NULL) {
- if (strncmp(entry, line->value, len) == 0 && line->value[len] == '=')
- return ++p;
- }
- }
- return NULL;
-}
-librc_hidden_def(rc_config_value)
-
-/* Global for caching the strings loaded from rc.conf to avoid reparsing for
- * each rc_conf_value call */
-static RC_STRINGLIST *rc_conf = NULL;
-
-char *
-rc_conf_value(const char *setting)
-{
- RC_STRINGLIST *old;
- RC_STRING *s;
- char *p;
-
- if (! rc_conf) {
- rc_conf = rc_config_load(RC_CONF);
-#ifdef DEBUG_MEMORY
- atexit(_free_rc_conf);
-#endif
-
- /* Support old configs. */
- if (exists(RC_CONF_OLD)) {
- old = rc_config_load(RC_CONF_OLD);
- TAILQ_CONCAT(rc_conf, old, entries);
-#ifdef DEBUG_MEMORY
- free(old);
-#endif
- }
-
- /* Convert old uppercase to lowercase */
- TAILQ_FOREACH(s, rc_conf, entries) {
- p = s->value;
- while (p && *p && *p != '=') {
- if (isupper((unsigned char)*p))
- *p = tolower((unsigned char)*p);
- p++;
- }
- }
- }
-
- return rc_config_value(rc_conf, setting);
-}
-librc_hidden_def(rc_conf_value)
-
-#ifdef DEBUG_MEMORY
-static void
-_free_rc_conf(void)
-{
- rc_stringlist_free(rc_conf);
-}
-#endif
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