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/* Copyright (c) 2002-2018 Dovecot authors, see the included COPYING file */
#include "lib.h"
#include "imap-seqset.h"
static uint32_t get_next_number(const char **str)
{
uint32_t num;
num = 0;
while (**str != '\0') {
if (**str < '0' || **str > '9')
break;
num = num*10 + (**str - '0');
(*str)++;
}
if (num == (uint32_t)-1) {
/* FIXME: ugly hack, we're using this number to mean the
last existing message. In reality UIDs should never get
this high, so we can quite safely just drop this one down. */
num--;
}
return num;
}
static int
get_next_seq_range(const char **str, uint32_t *seq1_r, uint32_t *seq2_r)
{
uint32_t seq1, seq2;
if (**str == '*') {
/* last message */
seq1 = (uint32_t)-1;
*str += 1;
} else {
seq1 = get_next_number(str);
if (seq1 == 0)
return -1;
}
if (**str != ':')
seq2 = seq1;
else {
/* first:last range */
*str += 1;
if (**str == '*') {
seq2 = (uint32_t)-1;
*str += 1;
} else {
seq2 = get_next_number(str);
if (seq2 == 0)
return -1;
}
}
if (seq1 > seq2) {
/* swap, as specified by RFC-3501 */
*seq1_r = seq2;
*seq2_r = seq1;
} else {
*seq1_r = seq1;
*seq2_r = seq2;
}
return 0;
}
int imap_seq_set_parse(const char *str, ARRAY_TYPE(seq_range) *dest)
{
uint32_t seq1, seq2;
while (*str != '\0') {
if (get_next_seq_range(&str, &seq1, &seq2) < 0)
return -1;
seq_range_array_add_range(dest, seq1, seq2);
if (*str == ',')
str++;
else if (*str != '\0')
return -1;
}
return 0;
}
int imap_seq_set_nostar_parse(const char *str, ARRAY_TYPE(seq_range) *dest)
{
if (imap_seq_set_parse(str, dest) < 0)
return -1;
if (seq_range_exists(dest, (uint32_t)-1)) {
/* '*' used */
return -1;
}
return 0;
}
int imap_seq_range_parse(const char *str, uint32_t *seq1_r, uint32_t *seq2_r)
{
if (get_next_seq_range(&str, seq1_r, seq2_r) < 0)
return -1;
return *str == '\0' ? 0 : -1;
}
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