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Add (unsigned char) cast to ctype macros

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Handle NULL return from malloc and strdup
This commit is contained in:
Andrey A. Chernov 2003-01-19 03:05:01 +00:00
parent 2d3ce7133a
commit 779092a489
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=109515
1 changed files with 31 additions and 13 deletions
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44
lib/libutil/property.c
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@ -46,11 +46,25 @@ property_alloc(char *name, char *value)
{
properties n;
n = (properties)malloc(sizeof(struct _property));
if ((n = (properties)malloc(sizeof(struct _property))) == NULL)
return (NULL);
n->next = NULL;
n->name = name ? strdup(name) : NULL;
n->value = value ? strdup(value) : NULL;
return n;
if (name != NULL) {
if ((n->name = strdup(name)) == NULL) {
free(n);
return (NULL);
}
} else
n->name = NULL;
if (value != NULL) {
if ((n->value = strdup(value)) == NULL) {
free(n->name);
free(n);
return (NULL);
}
} else
n->value = NULL;
return (n);
}
properties
@ -88,14 +102,14 @@ properties_read(int fd)
/* FALLTHROUGH deliberately since we already have a character and state == LOOK */
case LOOK:
if (isspace(ch))
if (isspace((unsigned char)ch))
continue;
/* Allow shell or lisp style comments */
else if (ch == '#' || ch == ';') {
state = COMMENT;
continue;
}
else if (isalnum(ch) || ch == '_') {
else if (isalnum((unsigned char)ch) || ch == '_') {
if (n >= PROPERTY_MAX_NAME) {
n = 0;
state = COMMENT;
@ -121,7 +135,7 @@ properties_read(int fd)
v = n = 0;
state = COMMIT;
}
else if (isspace(ch))
else if (isspace((unsigned char)ch))
continue;
else if (ch == '=') {
hold_n[n] = '\0';
@ -138,7 +152,7 @@ properties_read(int fd)
v = n = 0;
state = COMMIT;
}
else if (v == 0 && isspace(ch))
else if (v == 0 && isspace((unsigned char)ch))
continue;
else if (ch == '{') {
state = MVALUE;
@ -180,10 +194,14 @@ properties_read(int fd)
break;
case COMMIT:
if (!head)
head = ptr = property_alloc(hold_n, hold_v);
else {
ptr->next = property_alloc(hold_n, hold_v);
if (head == NULL) {
if ((head = ptr = property_alloc(hold_n, hold_v)) == NULL)
return (NULL);
} else {
if ((ptr->next = property_alloc(hold_n, hold_v)) == NULL) {
properties_free(head);
return (NULL);
}
ptr = ptr->next;
}
state = LOOK;
@ -195,7 +213,7 @@ properties_read(int fd)
break;
}
}
return head;
return (head);
}
char *