From a9b2bdafaf625d10aef2f476aa4014fd36c846bc Mon Sep 17 00:00:00 2001
From: Dexter Morgan <dmorgan@mageia.org>
Date: Thu, 2 Jun 2011 20:51:35 +0000
Subject: Branch for updates

---
 mdk-stage1/utils.c | 191 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 191 insertions(+)
 create mode 100644 mdk-stage1/utils.c

(limited to 'mdk-stage1/utils.c')

diff --git a/mdk-stage1/utils.c b/mdk-stage1/utils.c
new file mode 100644
index 000000000..1ef3632e3
--- /dev/null
+++ b/mdk-stage1/utils.c
@@ -0,0 +1,191 @@
+/*
+ * Guillaume Cottenceau (gc@mandriva.com)
+ *
+ * Copyright 2000 Mandriva
+ *
+ * This software may be freely redistributed under the terms of the GNU
+ * public license.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <ctype.h>
+#include <dirent.h>
+#include <sys/utsname.h>
+
+#include "utils.h"
+#include "log.h"
+
+// warning, many things rely on the fact that:
+// - when failing it returns 0
+// - it stops on first non-digit char
+int charstar_to_int(const char * s)
+{
+	int number = 0;
+	while (*s && isdigit(*s)) {
+		number = (number * 10) + (*s - '0');
+		s++;
+	}
+	return number;
+}
+
+off_t file_size(const char * path)
+{
+	struct stat statr;
+	if (stat(path, &statr))
+		return -1;
+        else
+                return statr.st_size;
+}
+
+char * cat_file(const char * file, struct stat * s) {
+	char * buf;
+	int fd = open(file, O_RDONLY);
+	if (fd == -1) {
+		log_perror(file);
+		return NULL;
+	}
+	
+	fstat(fd, s);
+	buf = malloc(s->st_size + 1);
+	if (read(fd, buf, s->st_size) != (ssize_t)s->st_size) {
+		close(fd);
+		free(buf);
+		log_perror(file);
+		return NULL;
+	}
+	buf[s->st_size] = '\0';
+	close(fd);
+
+	return buf;
+}
+
+int line_counts(const char * buf) {
+	const char * ptr = buf;
+	int line = 0;
+	while (ptr) {
+		line++;
+		ptr = strchr(ptr + 1, '\n');
+	}
+	return line;
+}
+
+int total_memory(void)
+{
+	int value;
+
+	/* drakx powered: use /proc/kcore and rounds every 4 Mbytes */
+	value = 4 * ((int)((float)file_size("/proc/kcore") / 1024 / 1024 / 4 + 0.5));
+	log_message("Total Memory: %d Mbytes", value);
+
+	return value;
+}
+
+/* pixel's */
+void * memdup(void *src, size_t size)
+{
+	void * r;
+	r = malloc(size);
+	memcpy(r, src, size);
+	return r;
+}
+
+
+void add_to_env(char * name, char * value)
+{
+        FILE* fakeenv = fopen("/tmp/env", "a");
+        if (fakeenv) {
+                char* e = asprintf_("%s=%s\n", name, value);
+                fwrite(e, 1, strlen(e), fakeenv);
+                free(e);
+                fclose(fakeenv);
+        } else 
+                log_message("couldn't fopen to fake env");
+}
+
+char ** list_directory(char * direct)
+{
+	char * tmp[50000]; /* in /dev there can be many many files.. */
+	int i = 0;
+	struct dirent *ep;
+	DIR *dp = opendir(direct);
+	while (dp && (ep = readdir(dp))) {
+		if (strcmp(ep->d_name, ".") && strcmp(ep->d_name, "..")) {
+			tmp[i] = strdup(ep->d_name);
+			i++;
+		}
+	}
+	if (dp)
+		closedir(dp);
+	tmp[i] = NULL;
+	return memdup(tmp, sizeof(char*) * (i+1));
+}
+
+
+int string_array_length(char ** a)
+{
+	int i = 0;
+	if (!a)
+		return -1;
+	while (a && *a) {
+		a++;
+		i++;
+	}
+	return i;
+}
+
+int kernel_version(void)
+{
+        struct utsname val;
+        if (uname(&val)) {
+                log_perror("uname failed");
+                return -1;
+        }
+        return charstar_to_int(val.release + 2);
+}
+
+char * asprintf_(const char *msg, ...)
+{
+        int n;
+        char * s;
+        char dummy;
+        va_list arg_ptr;
+        va_start(arg_ptr, msg);
+        n = vsnprintf(&dummy, sizeof(dummy), msg, arg_ptr);
+        va_start(arg_ptr, msg);
+        if ((s = malloc(n + 1))) {
+                vsnprintf(s, n + 1, msg, arg_ptr);
+                va_end(arg_ptr);
+                return s;
+        }
+        va_end(arg_ptr);
+        return strdup("");
+}
+
+int scall_(int retval, char * msg, char * file, int line)
+{
+	char tmp[5000];
+        sprintf(tmp, "%s(%s:%d) failed", msg, file, line);
+        if (retval)
+                log_perror(tmp);
+        return retval;
+}
+
+void lowercase(char *s)
+{
+       int i = 0;
+       while (s[i]) {
+               s[i] = tolower(s[i]);
+               i++;
+       }
+}
-- 
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