summaryrefslogtreecommitdiff
path: root/common
diff options
context:
space:
mode:
Diffstat (limited to 'common')
-rw-r--r--common/compat.c51
-rw-r--r--common/compat.h4
-rw-r--r--common/config-parser.c270
-rw-r--r--common/config-parser.h50
-rw-r--r--common/usuals.h79
5 files changed, 454 insertions, 0 deletions
diff --git a/common/compat.c b/common/compat.c
index 9d2f53f..0c6c833 100644
--- a/common/compat.c
+++ b/common/compat.c
@@ -179,3 +179,54 @@ strlcat(char* dst, const char* src, size_t siz)
}
#endif /* HAVE_STRLCAT */
+
+#ifndef HAVE_ATEXITV
+
+typedef void (*voidfunc)(void*);
+typedef struct _exit_stack
+{
+ voidfunc func;
+ void* data;
+
+ /* We have a list of these beauties */
+ struct _exit_stack* next;
+}
+exit_stack;
+
+/* Our exit stack */
+static exit_stack* atexits = NULL;
+static int atexit_registered = 0;
+
+static void
+atexit_do_stack(void)
+{
+ exit_stack* next;
+ for(; atexits; atexits = next)
+ {
+ next = atexits->next;
+ (atexits->func)(atexits->data);
+ free(atexits);
+ }
+}
+
+void
+atexitv(voidfunc func, void* data)
+{
+ exit_stack* ae;
+
+ ASSERT(func);
+
+ ae = (exit_stack*)calloc(1, sizeof(exit_stack));
+ if(ae)
+ {
+ ae->func = func;
+ ae->data = data;
+ ae->next = atexits;
+ atexits = ae;
+
+ if(!atexit_registered)
+ atexit(atexit_do_stack);
+ }
+}
+
+#endif /* HAVE_ATEXITV */
diff --git a/common/compat.h b/common/compat.h
index 17967f4..7ef2f50 100644
--- a/common/compat.h
+++ b/common/compat.h
@@ -69,4 +69,8 @@ char* strtrim(char* data);
int strtob(const char* str);
#endif
+#ifndef HAVE_ATEXITV
+void atexitv(void (*func)(void*), void* data);
+#endif
+
#endif /* __COMPAT_H__ */
diff --git a/common/config-parser.c b/common/config-parser.c
new file mode 100644
index 0000000..5c1aa98
--- /dev/null
+++ b/common/config-parser.c
@@ -0,0 +1,270 @@
+/*
+ * Copyright (c) 2005, Nate Nielsen
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the
+ * following disclaimer.
+ * * 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.
+ * * The names of contributors to this software may not be
+ * used to endorse or promote products derived from this
+ * software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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
+ * COPYRIGHT OWNER 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.
+ *
+ *
+ * CONTRIBUTORS
+ * Nate Nielsen <nielsen@memberwebs.com>
+ */
+
+#include "usuals.h"
+#include <errno.h>
+#include <unistd.h>
+#include <syslog.h>
+#include <stdarg.h>
+#include <dirent.h>
+
+#include "config-parser.h"
+
+static void
+errmsg(const char* filename, void* data, const char* msg, ...)
+{
+ #define MAX_MSGLEN 1024
+ char buf[MAX_MSGLEN];
+ va_list ap;
+
+ va_start(ap, msg);
+ vsnprintf(buf, MAX_MSGLEN, msg, ap);
+ buf[MAX_MSGLEN - 1] = 0;
+ cfg_error(filename, buf, data);
+ va_end(ap);
+}
+
+/* -----------------------------------------------------------------------------
+ * CONFIG PARSER
+ */
+
+static char*
+read_config_file(const char* configfile, void* data)
+{
+ char* config = NULL;
+ FILE* f = NULL;
+ long len;
+
+ ASSERT(configfile);
+
+ f = fopen(configfile, "r");
+ if(f == NULL)
+ {
+ errmsg(configfile, data, "couldn't open config file: %s", configfile);
+ return NULL;
+ }
+
+ /* Figure out size */
+ if(fseek(f, 0, SEEK_END) == -1 || (len = ftell(f)) == -1 || fseek(f, 0, SEEK_SET) == -1)
+ {
+ errmsg(configfile, data, "couldn't seek config file: %s", configfile);
+ return NULL;
+ }
+
+ if((config = (char*)malloc(len + 2)) == NULL)
+ {
+ errmsg(configfile, data, "out of memory");
+ return NULL;
+ }
+
+ /* And read in one block */
+ if(fread(config, 1, len, f) != len)
+ {
+ errmsg(configfile, data, "couldn't read config file: %s", configfile);
+ return NULL;
+ }
+
+ fclose(f);
+
+ /* Null terminate the data */
+ config[len] = '\n';
+ config[len + 1] = 0;
+
+ /* Remove nasty dos line endings */
+ strcln(config, '\r');
+
+ return config;
+}
+
+int
+cfg_parse_file(const char* filename, void* data, char** memory)
+{
+ char* name = NULL;
+ char* value = NULL;
+ char* config;
+ char* next;
+ char* header;
+ int ret = -1;
+ char* p;
+ char* t;
+ int pos;
+
+ ASSERT(filename);
+
+ config = read_config_file(filename, data);
+ next = config;
+
+ /* Go through lines and process them */
+ while((t = strchr(next, '\n')) != NULL)
+ {
+ *t = 0;
+ p = next; /* Do this before cleaning below */
+ next = t + 1;
+
+ t = strbtrim(p);
+
+ /* Continuation line (had spaces at start) */
+ if(p < t && *t)
+ {
+ if(!value)
+ {
+ errmsg(filename, data, "%s: invalid continuation in config: %s",
+ filename, p);
+ goto finally;
+ }
+
+ /* Calculate the end of the current value */
+ t = value + strlen(value);
+ ASSERT(t < p);
+
+ /* Continuations are separated by spaces */
+ *t = ' ';
+ t++;
+
+ continue;
+ }
+
+ /* No continuation hand off value if necessary */
+ if(name && value)
+ {
+ if(cfg_value(filename, header, name, value, data) == -1)
+ goto finally;
+ }
+
+ name = NULL;
+ value = NULL;
+
+ /* Empty lines / comments at start / comments without continuation */
+ if(!*t || *p == '#')
+ continue;
+
+ /* A header */
+ if(*p == '[')
+ {
+ t = p + strcspn(p, "]");
+ if(!*t || t == p + 1)
+ {
+ errmsg(filename, data, "%s: invalid config header: %s",
+ filename, p);
+ goto finally;
+ }
+
+ *t = 0;
+ header = strtrim(p + 1);
+ continue;
+ }
+
+ /* Look for the break between name = value on the same line */
+ t = p + strcspn(p, ":=");
+ if(!*t)
+ {
+ errmsg(filename, data, "%s: invalid config line: %s",
+ filename, p);
+ goto finally;
+ }
+
+ /* Null terminate and split value part */
+ *t = 0;
+ t++;
+
+ name = strtrim(p);
+ value = strtrim(t);
+ }
+
+ if(name && value)
+ {
+ if(cfg_value(filename, header, name, value, data) == -1)
+ goto finally;
+ }
+
+ ret = 0;
+
+
+finally:
+
+ if(!memory || ret != 0)
+ free(config);
+ else if(memory)
+ *memory = config;
+
+ return ret;
+}
+
+int
+cfg_parse_dir(const char* dirname, void* data)
+{
+ char olddir[MAXPATHLEN];
+ struct dirent* dire;
+ char *memory;
+ DIR* dir;
+
+ ASSERT(dir != NULL);
+
+ if(!getcwd(olddir, MAXPATHLEN))
+ olddir[0] = 0;
+
+ if(chdir(dirname) == -1)
+ errmsg(NULL, data, "couldn't list config directory: %s", dirname);
+
+ dir = opendir(".");
+ if(!dir)
+ {
+ errmsg(NULL, data, "couldn't list config directory: %s", dirname);
+ return -1;
+ }
+
+ while((dire = readdir(dir)) != NULL)
+ {
+ if(dire->d_type != DT_REG && dire->d_type != DT_LNK)
+ continue;
+
+ /* Build a happy path name */
+ cfg_parse_file(dire->d_name, data, &memory);
+
+ /* We call it with blanks after files */
+ if(cfg_value(dire->d_name, NULL, NULL, NULL, data) == -1)
+ break;
+
+ /* Keep the memory around */
+ if(memory)
+ atexitv(free, memory);
+ }
+
+ closedir(dir);
+
+ return 0;
+}
diff --git a/common/config-parser.h b/common/config-parser.h
new file mode 100644
index 0000000..94d96c9
--- /dev/null
+++ b/common/config-parser.h
@@ -0,0 +1,50 @@
+/*
+ * Copyright (c) 2005, Nate Nielsen
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the
+ * following disclaimer.
+ * * 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.
+ * * The names of contributors to this software may not be
+ * used to endorse or promote products derived from this
+ * software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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
+ * COPYRIGHT OWNER 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.
+ *
+ *
+ * CONTRIBUTORS
+ * Nate Nielsen <nielsen@memberwebs.com>
+ */
+
+#ifndef __CONFIG_PARSER_H__
+#define __CONFIG_PARSER_H__
+
+/* Callbacks must be defined by the caller */
+extern int cfg_value(const char* filename, const char* header, const char* name,
+ char* value, void* data);
+extern int cfg_errcallback(const char* filename, const char* errmsg, void* data);
+
+/* Calling these will call the callbacks above */
+int cfg_parse_dir(const char* dirname, void* data);
+int cfg_parse_file(const char* filename, void* data, char** memory);
+
+#endif /* __CONFIG_PARSER_H__ */
diff --git a/common/usuals.h b/common/usuals.h
new file mode 100644
index 0000000..5fece3f
--- /dev/null
+++ b/common/usuals.h
@@ -0,0 +1,79 @@
+/*
+ * Copyright (c) 2005, Nate Nielsen
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the
+ * following disclaimer.
+ * * 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.
+ * * The names of contributors to this software may not be
+ * used to endorse or promote products derived from this
+ * software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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
+ * COPYRIGHT OWNER 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.
+ *
+ *
+ * CONTRIBUTORS
+ * Nate Nielsen <nielsen@memberwebs.com>
+ *
+ */
+
+#ifndef __USUALS_H__
+#define __USUALS_H__
+
+#include <sys/types.h>
+
+#include "config.h"
+
+#include <sys/types.h>
+#include <sys/param.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <string.h>
+
+#include "compat.h"
+
+#ifndef NULL
+#define NULL 0
+#endif
+
+#ifndef max
+#define max(a,b) (((a) > (b)) ? (a) : (b))
+#endif
+
+#ifndef min
+#define min(a,b) (((a) < (b)) ? (a) : (b))
+#endif
+
+#define countof(x) (sizeof(x) / sizeof(x[0]))
+
+#ifdef _DEBUG
+ #include "assert.h"
+ #define ASSERT(x) assert(x)
+#else
+ #define ASSERT(x)
+#endif
+
+#define KL(s) ((sizeof(s) - 1) / sizeof(char))
+#define RETURN(x) { ret = (x); goto finally; }
+
+#endif /* __USUALS_H__ */
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-23 22:18:30 +0000