X-Git-Url: https://git.deb.at/w?a=blobdiff_plain;f=misc.c;h=4bfe3d353cd710f5a5abb4f54fead49c16b888b0;hb=8e362f5a1e900ad2cd11192436b5182e8b0e6ef6;hp=0a58cb96be67593103343ca25c032674321f3f06;hpb=0d3c17d9ab127e5596c8fb97d65122b3b90f6b11;p=pkg%2Fabook.git

diff --git a/misc.c b/misc.c
index 0a58cb9..4bfe3d3 100644
--- a/misc.c
+++ b/misc.c
@@ -1,7 +1,8 @@
 
 /*
- * misc.c
- * by JH <jheinonen@bigfoot.com>
+ * $Id$
+ *
+ * by JH <jheinonen@users.sourceforge.net>
  *
  * Copyright (C) Jaakko Heinonen
  */
@@ -15,6 +16,12 @@
 #include <ctype.h>
 #include <unistd.h>
 #include <errno.h>
+#ifdef HAVE_CONFIG_H
+#	include "config.h"
+#endif
+#ifdef HANDLE_MULTIBYTE
+#	include <mbswidth.h>
+#endif
 #include "misc.h"
 #ifdef ABOOK_SRC
 #	include "abook.h"
@@ -28,39 +35,13 @@
 
 #include <assert.h>
 
-char *
-revstr(char *str)
-{
-	char *s, *s2;
-
-	s = s2 = strdup(str);
-
-	while( *str )
-		str++;
-
-	while( *s )
-		*--str = *s++;
-
-	free(s2);
-	return str;
-}
-
-char *
-strupper(char *str)
-{
-	char *tmp = str;
-
-	while( ( *str = toupper( *str ) ) )
-		str++;
-	
-	return tmp;
-}
-
 char *
 strlower(char *str)
 {
 	char *tmp = str;
 
+	assert(str != NULL);
+
 	while( ( *str = tolower ( *str ) ) )
 		str++;
 
@@ -107,14 +88,16 @@ char *
 mkstr (const char *format, ... )
 {
 	MY_VA_LOCAL_DECL;
-	int size = 100;
+	size_t size = 100;
 	char *buffer =
 #ifdef ABOOK_SRC
 		(char *) abook_malloc (size);
 #else
-		(char *) malloc (size);
+		(char *) xmalloc (size);
 #endif
 	
+	assert(format != NULL);
+
 	for(;;) {
 		int n;
 		MY_VA_START(format);
@@ -122,16 +105,19 @@ mkstr (const char *format, ... )
 				format, ap);
 		MY_VA_END;
 
-		if (n > -1)
+		if (n > -1 && n < size)
 			return buffer;
 
-		size *= 2;
+		if (n > -1)
+			size = n + 1;
+		else
+			size *= 2;
 		
 		buffer =
 #ifdef ABOOK_SRC
 			(char *) abook_realloc (buffer, size);
 #else
-			(char *) realloc (buffer, size);
+			(char *) xrealloc (buffer, size);
 #endif
 	}
 }
@@ -140,12 +126,11 @@ mkstr (const char *format, ... )
 char*
 strconcat (const char *str, ...)
 {
-	int   l;
+	unsigned long l;
 	MY_VA_LOCAL_DECL;
 	char *s, *concat;
 
-	if(str == NULL)
-		return NULL;
+	assert(str != NULL);
 
 	l = 1 + strlen (str);
 	MY_VA_START(str);
@@ -160,8 +145,10 @@ strconcat (const char *str, ...)
 #ifdef ABOOK_SRC
 	abook_malloc(l);
 #else
-	malloc(l);
+	xmalloc(l);
 #endif
+	if(concat == NULL)
+		return NULL;
 
 	strcpy (concat, str);
 	MY_VA_START(str);
@@ -177,7 +164,7 @@ strconcat (const char *str, ...)
 
 
 int
-safe_strcmp(const char *s1, const char * s2)
+safe_strcmp(const char *s1, const char *s2)
 {
 	if (s1 == NULL && s2 == NULL) return 0;
 	if (s1 == NULL) return -1;
@@ -186,24 +173,42 @@ safe_strcmp(const char *s1, const char * s2)
 	return strcmp(s1, s2);
 }
 
+int
+safe_strcoll(const char *s1, const char *s2)
+{
+#ifdef HAVE_STRCOLL
+	if (s1 == NULL && s2 == NULL) return 0;
+	if (s1 == NULL) return -1;
+	if (s2 == NULL) return 1;
+
+	return strcoll(s1, s2);
+#else /* fall back to strcmp */
+	return safe_strcmp(s1, s2);
+#endif
+}
+
 char *
 my_getcwd()
 {
 	char *dir = NULL;
-	int size = 100;
+	size_t size = 100;
+
+	if( (dir = (char *)malloc(size)) == NULL)
+		return NULL;
 
-	dir = malloc(size);
+	*dir = 0;
 	
 	while( getcwd(dir, size) == NULL && errno == ERANGE )
-		dir = realloc(dir, size *=2);
+		if( (dir = (char *)realloc(dir, size *=2)) == NULL)
+			return NULL;
 
 	return dir;
 }
 
 #define INITIAL_SIZE	128
 #ifndef ABOOK_SRC
-#	define abook_malloc(X) malloc(X)
-#	define abook_realloc(X, XX) realloc(X, XX)
+#	define abook_malloc(X) xmalloc(X)
+#	define abook_realloc(X, XX) xrealloc(X, XX)
 #endif
 
 char *
@@ -228,7 +233,7 @@ getaline(FILE *f)
 
 	len = 0;
 	size = thres;
-	buf = abook_malloc(size);
+	buf = (char *)abook_malloc(size);
 
 	while (fgets(buf+len, size-len, f) != NULL) {
 		len += strlen(buf+len);
@@ -236,7 +241,8 @@ getaline(FILE *f)
 			break;		/* the whole line has been read */
 
 		for (inc = size, p = NULL; inc > mininc; inc /= 2)
-			if ((p = abook_realloc(buf, size + inc)) != NULL)
+			if ((p = (char *)abook_realloc(buf, size + inc)) !=
+					NULL)
 				break;
 
 		size += inc;
@@ -252,7 +258,7 @@ getaline(FILE *f)
 		buf[--len] = '\0';
 
 	if (size - len > mucho) { /* a plenitude of unused memory? */
-		p = abook_realloc(buf, len+1);
+		p = (char *)abook_realloc(buf, len+1);
 		if (p != NULL) {
 			buf = p;
 			size = len+1;
@@ -262,6 +268,28 @@ getaline(FILE *f)
 	return buf;
 }
 
+int
+strwidth(const char *s)
+{
+	assert(s);
+#ifdef HANDLE_MULTIBYTE
+	return (int)mbswidth(s, 0);
+#else
+	return strlen(s);
+#endif
+}
+
+int
+bytes2width(const char *s, int width)
+{
+	assert(s);
+#ifdef HANDLE_MULTIBYTE
+	return mbsnbytes(s, strlen(s), width, 0);
+#else
+	return width;
+#endif
+}
+
 /**************************************************************
  * Original:
  * Patrick Powell Tue Apr 11 09:48:21 PDT 1995