Files
sics/errormsg.c

84 lines
1.7 KiB
C

#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include "errormsg.h"
/* compare two strings for euqality, ignoring text within square brackets */
int ErrEqual(char *str1, char *str2)
{
char *p;
while (*str1 != '\0' || *str2 != '\0') {
if (*str1 != *str2) {
return 0;
}
if (*str1 == '[') {
str1 = strchr(str1, ']');
str2 = strchr(str2, ']');
if (str1 == NULL || str2 == NULL) {
return str1 == str2;
}
}
str1++;
str2++;
}
return 1;
}
void ErrPutMsg(ErrList *list, char *fmt, ...)
{
ErrMsg *m = NULL;
ErrMsg **last = NULL;
va_list ap;
char buf[256];
char *text = NULL;
int l;
static long id = 0;
va_start(ap, fmt);
l = vsnprintf(buf, sizeof buf, fmt, ap);
va_end(ap);
if (l < sizeof buf) {
text = buf;
} else {
/* assuming we have a C99 conforming snprintf and need a larger buffer */
text = calloc(l, 1);
if (!text) return;
va_start(ap, fmt);
vsnprintf(text, l, fmt, ap);
va_end(ap);
}
last = &list->current;
for (m = list->current; m != NULL; m = m->next) {
if (ErrEqual(text, m->text)) {
*last = m->next; /* remove found item from list */
break;
}
last = &m->next;
}
if (m == NULL) { /* make a new item */
if (text == buf)
text = strdup(buf);
m = calloc(1, sizeof(*m));
m->text = text;
m->cnt = 1;
m->dirty = 0;
id++;
m->id = id;
} else {
if (text != buf)
free(text);
m->cnt++;
}
m->next = list->current;
time(&m->last);
list->current = m;
}
char *ErrGetLastMsg(ErrList *list) {
if (list == NULL) return "";
if (list->current == NULL) return "";
return list->current->text;
}