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EMAIL: Fixed bug with seeking in EMAIL.DB with offsets >64KB

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Bobbi Webber-Manners 2020-09-12 19:47:14 -04:00
parent f52d76f990
commit ab843aa5bd
1 changed files with 5 additions and 5 deletions
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10
apps/email.c
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@ -373,13 +373,13 @@ uint8_t read_email_db(uint16_t startnum, uint8_t initialize, uint8_t switchmbox)
return 1;
}
// If the mailbox is empty this seek will fail
if (fseek(fp, ftell(fp) - startnum * EMAILHDRS_SZ_ON_DISK, SEEK_SET)) {
if (fseek(fp, ftell(fp) - (uint32_t)startnum * EMAILHDRS_SZ_ON_DISK, SEEK_SET)) {
fclose(fp);
num_msgs = total_new = total_msgs = total_tag = 0;
return 0;
}
} else {
if (fseek(fp, (startnum - 1) * EMAILHDRS_SZ_ON_DISK, SEEK_SET)) {
if (fseek(fp, (uint32_t)(startnum - 1) * EMAILHDRS_SZ_ON_DISK, SEEK_SET)) {
fclose(fp);
error(switchmbox ? ERR_NONFATAL : ERR_FATAL, "Can't seek in %s", filename);
if (switchmbox)
@ -425,8 +425,8 @@ uint8_t read_email_db(uint16_t startnum, uint8_t initialize, uint8_t switchmbox)
free(curr);
}
if (reverse) {
pos = ftell(fp) - 2 * EMAILHDRS_SZ_ON_DISK;
if (pos == -1 * EMAILHDRS_SZ_ON_DISK) {
pos = ftell(fp) - 2L * EMAILHDRS_SZ_ON_DISK;
if (pos == -1L * EMAILHDRS_SZ_ON_DISK) {
fclose(fp);
return 0;
}
@ -1205,7 +1205,7 @@ void write_updated_headers(struct emailhdrs *h, uint16_t pos) {
fp = fopen(filename, "rb+");
if (!fp)
error(ERR_FATAL, "Can't open %s", filename);
if (fseek(fp, (pos - 1) * EMAILHDRS_SZ_ON_DISK, SEEK_SET))
if (fseek(fp, (uint32_t)(pos - 1) * EMAILHDRS_SZ_ON_DISK, SEEK_SET))
error(ERR_FATAL, "Can't seek in %s", filename);
l = fwrite(h, 1, EMAILHDRS_SZ_ON_DISK, fp);
if (l != EMAILHDRS_SZ_ON_DISK)