X-Git-Url: https://git.deb.at/?a=blobdiff_plain;f=misc.c;fp=misc.c;h=1eadf97b19e4edc9fc43ce76196475df1e3bec69;hb=d2379cecf22c9e32d07b371fb05615d9bb2917aa;hp=29ba73985ff4711753948c2965133aea6ffbe2c0;hpb=69dd06bfd7bb894e0683361aa3fb9ce35ade3590;p=pkg%2Fabook.git

diff --git a/misc.c b/misc.c
index 29ba739..1eadf97 100644
--- a/misc.c
+++ b/misc.c
@@ -37,6 +37,8 @@ revstr(char *str)
 {
 	char *s, *s2;
 
+	assert(str != NULL);
+
 	s = s2 = strdup(str);
 
 	while( *str )
@@ -54,6 +56,8 @@ strupper(char *str)
 {
 	char *tmp = str;
 
+	assert(str != NULL);
+
 	while( ( *str = toupper( *str ) ) )
 		str++;
 	
@@ -65,6 +69,8 @@ strlower(char *str)
 {
 	char *tmp = str;
 
+	assert(str != NULL);
+
 	while( ( *str = tolower ( *str ) ) )
 		str++;
 
@@ -119,6 +125,8 @@ mkstr (const char *format, ... )
 		(char *) malloc (size);
 #endif
 	
+	assert(format != NULL);
+
 	for(;;) {
 		int n;
 		MY_VA_START(format);
@@ -151,8 +159,7 @@ strconcat (const char *str, ...)
 	MY_VA_LOCAL_DECL;
 	char *s, *concat;
 
-	if(str == NULL)
-		return NULL;
+	assert(str != NULL);
 
 	l = 1 + strlen (str);
 	MY_VA_START(str);
@@ -213,10 +220,12 @@ my_getcwd()
 	char *dir = NULL;
 	int size = 100;
 
-	dir = malloc(size);
+	if( (dir = malloc(size)) == NULL)
+		return NULL;
 	
 	while( getcwd(dir, size) == NULL && errno == ERANGE )
-		dir = realloc(dir, size *=2);
+		if( (dir = realloc(dir, size *=2)) == NULL)
+			return NULL;
 
 	return dir;
 }