dynamic_array_t *config_file_read (const char *filename){
char key[MAX_LINE_LENGTH];
char tail[MAX_LINE_LENGTH];
char buffer[MAX_LINE_LENGTH];
char format[MAX_LINE_LENGTH];
int status;
int token=0;
int comment=0;
int offset=0;
char *s;
dynamic_array_t *a;
FILE *stream;
extern int errno;
if(filename==NULL) return(NULL);
if((stream=fopen(filename, "r"))==NULL){
return(NULL);
}
if((a=dynamic_array_create((size_t)0))==NULL){
fprintf(stderr, "config_file_read: dynamic_array_create\n");
return(NULL);
}
/*insert a dummy argv[0] into the dynamic array*/
if((a=dynamic_array_add_element(a, "", DESTROY_STR, DUP_STR))==NULL){
fprintf(stderr, "config_file_read: dynamic_array_add_element\n");
return(NULL);
}
*key=*(key+1)=*buffer=*(buffer+1)='-';
sprintf(
format,
"%%%d[^ \t\n\r#]%%%d[ \t\n\r#]",
MAX_LINE_LENGTH-3,
MAX_LINE_LENGTH-1
);
while((status=fscanf(stream, format, key+2+offset, tail))!=EOF){
if(status==0) { status=fscanf(stream, "%[^\n]\n", tail); continue; }
if(!comment){
strncpy(buffer+offset,key+offset,MAX_LINE_LENGTH-offset);
if(token==0){
ADD_ELEMENT;
}
}
if(status==2){
if((s=strrchr(tail, '\n'))==NULL){
if(token++>0){
offset=strlen(key+2);
*(key+2+offset)=' ';
*(buffer+2+offset++)=' ';
}
}
else{
if(!comment && *buffer!='\0'){
ADD_ELEMENT;
}
offset=0;
token=0;
comment=0;
*buffer='\0';
}
if(!comment){
comment=(strchr(s!=NULL?s:tail, '#')==NULL)?0:1;
}
}
}
return(a);
}
dynamic_array_t *
config_stream_read(FILE * stream, const char *first_element)
{
char token[MAX_LINE_LENGTH];
char tail[2];
char format[MAX_LINE_LENGTH];
char format_whitespace[MAX_LINE_LENGTH];
int status;
int ntoken;
int comment = 0;
char *s;
int c;
int flag;
dynamic_array_t *a;
if ((a = dynamic_array_create((size_t) 0)) == NULL) {
perror("config_file_read: dynamic_array_create");
return (NULL);
}
/*insert a argv[0] into the dynamic array */
if ((a = dynamic_array_add_element(a,
(first_element !=
NULL ? first_element : ""),
DESTROY_STR, DUP_STR)) == NULL) {
perror("config_file_read: dynamic_array_add_element");
return (NULL);
}
sprintf(format, "%%%d[^ \t\n\r]%%1[ \t\n\r]", MAX_LINE_LENGTH);
sprintf(format_whitespace, "%%%d[ \t\r]%%1[\n]", MAX_LINE_LENGTH);
ntoken = 0;
while ((status = fscanf(stream, format, token, tail)) != EOF) {
if (status == 0) {
flag = 1;
while (flag) {
c = fgetc(stream);
switch (c) {
case EOF:
dynamic_array_destroy(a, DESTROY_STR);
return (NULL);
case '\n':
return (a);
case '\t':
case '\r':
case ' ':
break;
default:
ungetc(c, stream);
flag = 0;
}
}
continue;
}
if (!comment && strcmp(token, "ipvsadm")) {
ntoken++;
if ((a = dynamic_array_add_element(a,
token,
DESTROY_STR, DUP_STR)) == NULL) {
perror("config_file_read: dynamic_array_add_element");
dynamic_array_destroy(a, DESTROY_STR);
return (NULL);
}
}
if ((s = strrchr(tail, '\n')) != NULL) {
return (a);
}
if (!comment) {
comment = (strchr((s != NULL ? s : tail), '#') == NULL) ? 0 : 1;
}
}
if (ntoken == 0) {
dynamic_array_destroy(a, DESTROY_STR);
return (NULL);
}
return (a);
}
