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-rw-r--r--gconfig.c551
1 files changed, 0 insertions, 551 deletions
diff --git a/gconfig.c b/gconfig.c
deleted file mode 100644
index b7107aa..0000000
--- a/gconfig.c
+++ /dev/null
@@ -1,551 +0,0 @@
-/*
- * Copyright (C) 2007, 2008 Stig Venaas <venaas@uninett.no>
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- */
-
-#include <string.h>
-#include <stdarg.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <limits.h>
-#include <glob.h>
-#include <sys/types.h>
-#include <ctype.h>
-#include <libgen.h>
-#include <errno.h>
-#include "debug.h"
-#include "util.h"
-#include "gconfig.h"
-
-/* returns NULL on error, where to continue parsing if token and ok. E.g. "" will return token with empty string */
-char *strtokenquote(char *s, char **token, char *del, char *quote, char *comment) {
- char *t = s, *q, *r;
-
- if (!t || !token || !del)
- return NULL;
- while (*t && strchr(del, *t))
- t++;
- if (!*t || (comment && strchr(comment, *t))) {
- *token = NULL;
- return t + 1; /* needs to be non-NULL, but value doesn't matter */
- }
- if (quote && (q = strchr(quote, *t))) {
- t++;
- r = t;
- while (*t && *t != *q)
- t++;
- if (!*t || (t[1] && !strchr(del, t[1])))
- return NULL;
- *t = '\0';
- *token = r;
- return t + 1;
- }
- *token = t;
- t++;
- while (*t && !strchr(del, *t))
- t++;
- *t = '\0';
- return t + 1;
-}
-
-int pushgconfdata(struct gconffile **cf, const char *data) {
- int i;
- struct gconffile *newcf;
-
- if (!*cf) {
- newcf = malloc(sizeof(struct gconffile) * 2);
- if (!newcf)
- return 0;
- memset(newcf, 0, sizeof(struct gconffile) * 2);
- } else {
- for (i = 0; (*cf)[i].data || (*cf)[i].path; i++);
- newcf = realloc(*cf, sizeof(struct gconffile) * (i + 2));
- if (!newcf)
- return 0;
- memmove(newcf + 1, newcf, sizeof(struct gconffile) * (i + 1));
- memset(newcf, 0, sizeof(struct gconffile));
- }
- newcf[0].data = data;
- *cf = newcf;
- return 1;
-}
-
-FILE *pushgconffile(struct gconffile **cf, FILE *file, const char *description) {
- int i;
- struct gconffile *newcf;
- char *desc;
-
- if (!file) {
- debug(DBG_INFO, "could not read config from %s", description);
- return NULL;
- }
- debug(DBG_DBG, "reading config from %s", description);
-
- desc = stringcopy(description, 0);
- if (!desc)
- goto errmalloc;
-
- if (!*cf) {
- newcf = malloc(sizeof(struct gconffile) * 2);
- if (!newcf)
- goto errmalloc;
- memset(newcf, 0, sizeof(struct gconffile) * 2);
- } else {
- for (i = 0; (*cf)[i].data || (*cf)[i].path; i++);
- newcf = realloc(*cf, sizeof(struct gconffile) * (i + 2));
- if (!newcf)
- goto errmalloc;
- memmove(newcf + 1, newcf, sizeof(struct gconffile) * (i + 1));
- memset(newcf, 0, sizeof(struct gconffile));
- }
- newcf[0].file = file;
- newcf[0].path = desc;
- *cf = newcf;
- return file;
-
-errmalloc:
- free(desc);
- fclose(file);
- debug(DBG_ERR, "malloc failed");
- return NULL;
-}
-
-FILE *pushgconfpath(struct gconffile **cf, const char *path) {
- FILE *f;
-
- f = fopen(path, "r");
- return pushgconffile(cf, f, path);
-}
-
-FILE *pushgconfpaths(struct gconffile **cf, const char *cfgpath) {
- int i;
- FILE *f = NULL;
- glob_t globbuf;
- char *path, *curfile = NULL, *dir;
-
- /* if cfgpath is relative, make it relative to current config */
- if (*cfgpath == '/')
- path = (char *)cfgpath;
- else {
- /* dirname may modify its argument */
- curfile = stringcopy((*cf)->path, 0);
- if (!curfile) {
- debug(DBG_ERR, "malloc failed");
- goto exit;
- }
- dir = dirname(curfile);
- path = malloc(strlen(dir) + strlen(cfgpath) + 2);
- if (!path) {
- debug(DBG_ERR, "malloc failed");
- goto exit;
- }
- strcpy(path, dir);
- path[strlen(dir)] = '/';
- strcpy(path + strlen(dir) + 1, cfgpath);
- }
- memset(&globbuf, 0, sizeof(glob_t));
- if (glob(path, 0, NULL, &globbuf)) {
- debug(DBG_WARN, "could not glob %s", path);
- goto exit;
- }
-
- for (i = globbuf.gl_pathc - 1; i >= 0; i--) {
- f = pushgconfpath(cf, globbuf.gl_pathv[i]);
- if (!f)
- break;
- }
- globfree(&globbuf);
-
-exit:
- if (curfile) {
- free(curfile);
- free(path);
- }
- return f;
-}
-
-int popgconf(struct gconffile **cf) {
- int i;
-
- if (!*cf)
- return 0;
- for (i = 0; (*cf)[i].data || (*cf)[i].path; i++);
- if (i && (*cf)[0].file) {
- fclose((*cf)[0].file);
- if ((*cf)[0].path) {
- debug(DBG_DBG, "closing config file %s", (*cf)[0].path);
- free((*cf)[0].path);
- }
- }
- if (i < 2) {
- free(*cf);
- *cf = NULL;
- return 0;
- }
- memmove(*cf, *cf + 1, sizeof(struct gconffile) * i);
- return 1;
-}
-
-void freegconfmstr(char **mstr) {
- int i;
-
- if (mstr) {
- for (i = 0; mstr[i]; i++)
- free(mstr[i]);
- free(mstr);
- }
-}
-
-void freegconf(struct gconffile **cf) {
- int i;
-
- if (!*cf)
- return;
-
- for (i = 0; (*cf)[i].data || (*cf)[i].path; i++) {
- if ((*cf)[i].file) {
- fclose((*cf)[i].file);
- if ((*cf)[i].path) {
- debug(DBG_DBG, "closing config file %s", (*cf)[i].path);
- free((*cf)[i].path);
- }
- }
- }
- free(*cf);
- *cf = NULL;
-}
-
-struct gconffile *openconfigfile(const char *file) {
- struct gconffile *cf = NULL;
-
- if (!pushgconfpath(&cf, file)) {
- debug(DBG_ERR, "could not read config file %s\n%s", file, strerror(errno));
- return NULL;
- }
- debug(DBG_DBG, "reading config file %s", file);
- return cf;
-}
-
-/* Parses config with following syntax:
- * One of these:
- * option-name value
- * option-name = value
- * Or:
- * option-name value {
- * option-name [=] value
- * ...
- * }
- */
-
-int getlinefromcf(struct gconffile *cf, char *line, const size_t size) {
- size_t i, pos;
-
- if (!cf)
- return 0;
-
- if (cf->file)
- return fgets(line, size, cf->file) ? 1 : 0;
- else if (cf->data) {
- pos = cf->datapos;
- if (!cf->data[pos])
- return 0;
- for (i = pos; cf->data[i] && cf->data[i] != '\n'; i++);
- if (cf->data[i] == '\n')
- i++;
- if (i - pos > size - 1)
- i = size - 1 + pos;
- memcpy(line, cf->data + pos, i - pos);
- line[i - pos] = '\0';
- cf->datapos = i;
- return 1;
- }
- return 0;
-}
-
-int getconfigline(struct gconffile **cf, char *block, char **opt, char **val, int *conftype) {
- char line[1024];
- char *tokens[3], *s;
- int tcount;
-
- *opt = NULL;
- *val = NULL;
- *conftype = 0;
-
- if (!cf || !*cf || (!(*cf)->file && !(*cf)->data))
- return 1;
-
- for (;;) {
- if (!getlinefromcf(*cf, line, 1024)) {
- if (popgconf(cf))
- continue;
- return 1;
- }
- s = line;
- for (tcount = 0; tcount < 3; tcount++) {
- s = strtokenquote(s, &tokens[tcount], " \t\r\n", "\"'", tcount ? NULL : "#");
- if (!s) {
- debug(DBG_ERR, "Syntax error in line starting with: %s", line);
- return 0;
- }
- if (!tokens[tcount])
- break;
- }
- if (!tcount || **tokens == '#')
- continue;
-
- if (**tokens == '}') {
- if (block)
- return 1;
- debug(DBG_ERR, "configuration error, found } with no matching {");
- return 0;
- }
- break;
- }
-
- switch (tcount) {
- case 2:
- *opt = stringcopy(tokens[0], 0);
- if (!*opt)
- goto errmalloc;
- *val = stringcopy(tokens[1], 0);
- if (!*val)
- goto errmalloc;
- *conftype = CONF_STR;
- break;
- case 3:
- if (tokens[1][0] == '=' && tokens[1][1] == '\0') {
- *opt = stringcopy(tokens[0], 0);
- if (!*opt)
- goto errmalloc;
- *val = stringcopy(tokens[2], 0);
- if (!*val)
- goto errmalloc;
- *conftype = CONF_STR;
- break;
- }
- if (tokens[2][0] == '{' && tokens[2][1] == '\0') {
- *opt = stringcopy(tokens[0], 0);
- if (!*opt)
- goto errmalloc;
- *val = stringcopy(tokens[1], 0);
- if (!*val)
- goto errmalloc;
- *conftype = CONF_CBK;
- break;
- }
- /* fall through */
- default:
- if (block)
- debug(DBG_ERR, "configuration error in block %s, line starting with %s", block, tokens[0]);
- else
- debug(DBG_ERR, "configuration error, syntax error in line starting with %s", tokens[0]);
- return 0;
- }
-
- if (**val)
- return 1;
-
- debug(DBG_ERR, "configuration error, option %s needs a non-empty value", *opt);
- goto errexit;
-
-errmalloc:
- debug(DBG_ERR, "malloc failed");
-errexit:
- free(*opt);
- *opt = NULL;
- free(*val);
- *val = NULL;
- return 0;
-}
-
-uint8_t hexdigit2int(char d) {
- if (d >= '0' && d <= '9')
- return d - '0';
- if (d >= 'a' && d <= 'f')
- return 10 + d - 'a';
- if (d >= 'A' && d <= 'F')
- return 10 + d - 'A';
- return 0;
-}
-
-void unhex(char *s) {
- char *t;
- for (t = s; *t; s++) {
- if (*t == '%' && isxdigit((int)t[1]) && isxdigit((int)t[2])) {
- *s = 16 * hexdigit2int(t[1]) + hexdigit2int(t[2]);
- t += 3;
- } else
- *s = *t++;
- }
- *s = '\0';
-}
-
-typedef int (*t_fptr)(struct gconffile **, void *, char *, char *, char *);
-
-/* returns 1 if ok, 0 on error */
-/* caller must free returned values also on error */
-int getgenericconfig(struct gconffile **cf, char *block, ...) {
- va_list ap;
- char *opt = NULL, *val, *word, *optval, **str = NULL, ***mstr = NULL, **newmstr, *endptr;
- uint8_t *bln = NULL;
- long int *lint = NULL;
- int type = 0, conftype = 0, n;
- t_fptr cbk = NULL;
- void *cbkarg = NULL;
-
- for (;;) {
- free(opt);
- if (!getconfigline(cf, block, &opt, &val, &conftype))
- return 0;
- if (!opt)
- return 1;
-
- if (conftype == CONF_STR && !strcasecmp(opt, "include")) {
- if (!pushgconfpaths(cf, val)) {
- debug(DBG_ERR, "failed to include config file %s", val);
- goto errexit;
- }
- free(val);
- continue;
- }
-
- va_start(ap, block);
- while ((word = va_arg(ap, char *))) {
- type = va_arg(ap, int);
- switch (type) {
- case CONF_STR:
- str = va_arg(ap, char **);
- if (!str)
- goto errparam;
- break;
- case CONF_MSTR:
- mstr = va_arg(ap, char ***);
- if (!mstr)
- goto errparam;
- break;
- case CONF_BLN:
- bln = va_arg(ap, uint8_t *);
- if (!bln)
- goto errparam;
- break;
- case CONF_LINT:
- lint = va_arg(ap, long int *);
- if (!lint)
- goto errparam;
- break;
- case CONF_CBK:
- cbk = va_arg(ap, t_fptr);
- if (!cbk)
- goto errparam;
- cbkarg = va_arg(ap, void *);
- break;
- default:
- goto errparam;
- }
- if (!strcasecmp(opt, word))
- break;
- }
- va_end(ap);
-
- if (!word) {
- if (block)
- debug(DBG_ERR, "configuration error in block %s, unknown option %s", block, opt);
- debug(DBG_ERR, "configuration error, unknown option %s", opt);
- goto errexit;
- }
-
- if (((type == CONF_STR || type == CONF_MSTR || type == CONF_BLN || type == CONF_LINT) && conftype != CONF_STR) ||
- (type == CONF_CBK && conftype != CONF_CBK)) {
- if (block)
- debug(DBG_ERR, "configuration error in block %s, wrong syntax for option %s", block, opt);
- debug(DBG_ERR, "configuration error, wrong syntax for option %s", opt);
- goto errexit;
- }
-
- switch (type) {
- case CONF_STR:
- if (*str) {
- debug(DBG_ERR, "configuration error, option %s already set to %s", opt, *str);
- goto errexit;
- }
- unhex(val);
- *str = val;
- break;
- case CONF_MSTR:
- if (*mstr)
- for (n = 0; (*mstr)[n]; n++);
- else
- n = 0;
- newmstr = realloc(*mstr, sizeof(char *) * (n + 2));
- if (!newmstr) {
- debug(DBG_ERR, "malloc failed");
- goto errexit;
- }
- unhex(val);
- newmstr[n] = val;
- newmstr[n + 1] = NULL;
- *mstr = newmstr;
- break;
- case CONF_BLN:
- if (!strcasecmp(val, "on"))
- *bln = 1;
- else if (!strcasecmp(val, "off"))
- *bln = 0;
- else {
- if (block)
- debug(DBG_ERR, "configuration error in block %s, value for option %s must be on or off, not %s", block, opt, val);
- else
- debug(DBG_ERR, "configuration error, value for option %s must be on or off, not %s", opt, val);
- goto errexit;
- }
- break;
- case CONF_LINT:
- endptr = NULL;
- *lint = strtol(val, &endptr, 0);
- if (*lint == LONG_MIN || *lint == LONG_MAX || !endptr || endptr == val || *endptr != '\0') {
- if (block)
- debug(DBG_ERR, "configuration error in block %s, value for option %s must be an integer, not %s", block, opt, val);
- else
- debug(DBG_ERR, "configuration error, value for option %s must be an integer, not %s", opt, val);
- goto errexit;
- }
- break;
- case CONF_CBK:
- optval = malloc(strlen(opt) + strlen(val) + 2);
- if (!optval) {
- debug(DBG_ERR, "malloc failed");
- goto errexit;
- }
- sprintf(optval, "%s %s", opt, val);
- if (!cbk(cf, cbkarg, optval, opt, val)) {
- free(optval);
- goto errexit;
- }
- free(val);
- free(optval);
- continue;
- default:
- goto errparam;
- }
- if (block)
- debug(DBG_DBG, "getgenericconfig: block %s: %s = %s", block, opt, val);
- else
- debug(DBG_DBG, "getgenericconfig: %s = %s", opt, val);
- if (type == CONF_BLN || type == CONF_LINT)
- free(val);
- }
-
-errparam:
- debug(DBG_ERR, "getgenericconfig: internal parameter error");
-errexit:
- free(opt);
- free(val);
- return 0;
-}
-
-/* Local Variables: */
-/* c-file-style: "stroustrup" */
-/* End: */
generated by cgit v1.1 at 2024-12-29 19:47:11 +0000