From 09cfe2a4c061a4b2c08d93c1d99f60c8879f5cf2 Mon Sep 17 00:00:00 2001
From: Andrew Gregory <andrew.gregory.8@gmail.com>
Date: Sat, 26 Apr 2014 12:31:33 -0400
Subject: ini.c: move Include parsing to conf.c

Reduces the number of errors the ini parser must handle to make it more
suitable for sharing with the backend.

Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com>
---
 src/pacman/conf.c | 69 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 69 insertions(+)

(limited to 'src/pacman/conf.c')

diff --git a/src/pacman/conf.c b/src/pacman/conf.c
index fbf7bb3c..64c83198 100644
--- a/src/pacman/conf.c
+++ b/src/pacman/conf.c
@@ -22,6 +22,7 @@
 #include <limits.h>
 #include <locale.h> /* setlocale */
 #include <fcntl.h> /* open */
+#include <glob.h>
 #include <stdlib.h>
 #include <stdio.h>
 #include <string.h> /* strdup */
@@ -813,6 +814,7 @@ static int setup_libalpm(void)
 struct section_t {
 	const char *name;
 	config_repo_t *repo;
+	int depth;
 };
 
 static int process_usage(alpm_list_t *values, alpm_db_usage_t *usage,
@@ -895,6 +897,69 @@ static int _parse_repo(const char *key, char *value, const char *file,
 	return ret;
 }
 
+static int _parse_directive(const char *file, int linenum, const char *name,
+		char *key, char *value, void *data);
+
+static int process_include(const char *value, void *data,
+		const char *file, int linenum)
+{
+	glob_t globbuf;
+	int globret, ret = 0;
+	size_t gindex;
+	struct section_t *section = data;
+	static const int config_max_recursion = 10;
+
+	if(value == NULL) {
+		pm_printf(ALPM_LOG_ERROR, _("config file %s, line %d: directive '%s' needs a value\n"),
+				file, linenum, "Include");
+		return 1;
+	}
+
+	if(section->depth >= config_max_recursion) {
+		pm_printf(ALPM_LOG_ERROR,
+				_("config parsing exceeded max recursion depth of %d.\n"),
+				config_max_recursion);
+		return 1;
+	}
+
+	section->depth++;
+
+	/* Ignore include failures... assume non-critical */
+	globret = glob(value, GLOB_NOCHECK, NULL, &globbuf);
+	switch(globret) {
+		case GLOB_NOSPACE:
+			pm_printf(ALPM_LOG_DEBUG,
+					"config file %s, line %d: include globbing out of space\n",
+					file, linenum);
+			break;
+		case GLOB_ABORTED:
+			pm_printf(ALPM_LOG_DEBUG,
+					"config file %s, line %d: include globbing read error for %s\n",
+					file, linenum, value);
+			break;
+		case GLOB_NOMATCH:
+			pm_printf(ALPM_LOG_DEBUG,
+					"config file %s, line %d: no include found for %s\n",
+					file, linenum, value);
+			break;
+		default:
+			for(gindex = 0; gindex < globbuf.gl_pathc; gindex++) {
+				pm_printf(ALPM_LOG_DEBUG, "config file %s, line %d: including %s\n",
+						file, linenum, globbuf.gl_pathv[gindex]);
+				ret = parse_ini(globbuf.gl_pathv[gindex], _parse_directive, data);
+				if(ret) {
+					goto cleanup;
+				}
+			}
+			break;
+	}
+
+cleanup:
+	section->depth--;
+	globfree(&globbuf);
+	return ret;
+}
+
 static int _parse_directive(const char *file, int linenum, const char *name,
 		char *key, char *value, void *data)
 {
@@ -914,6 +979,10 @@ static int _parse_directive(const char *file, int linenum, const char *name,
 		return 0;
 	}
 
+	if(strcmp(key, "Include") == 0) {
+		return process_include(value, data, file, linenum);
+	}
+
 	if(section->name == NULL) {
 		pm_printf(ALPM_LOG_ERROR, _("config file %s, line %d: All directives must belong to a section.\n"),
 				file, linenum);
-- 
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