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cleanup: Fix fread() and fwrite() error handling

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Cleaned up some of the incorrect uses of fread() and fwrite(), mostly in
the format modules. Neither of these functions will ever return a value
less than 0, which we were checking for in some cases.

I've introduced a fair amount of duplication in the format modules, but
I plan to change how format modules work internally in a subsequent
patch set, so this is simply a stop-gap.

Change-Id: I8ca1cd47c20b2c0b72088bd13b9046f6977aa872
This commit is contained in:
Sean Bright
2017-04-21 13:04:44 -04:00
parent 8df729517e
commit f5b67871df
19 changed files with 198 additions and 70 deletions
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8
addons/format_mp3.c
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@@ -118,9 +118,11 @@ static int mp3_squeue(struct ast_filestream *s)
res = ftell(s->f);
p->sbuflen = fread(p->sbuf, 1, MP3_SCACHE, s->f);
if(p->sbuflen < 0) {
ast_log(LOG_WARNING, "Short read (%d) (%s)!\n", p->sbuflen, strerror(errno));
return -1;
if (p->sbuflen < MP3_SCACHE) {
if (ferror(s->f)) {
ast_log(LOG_WARNING, "Error while reading MP3 file: %s\n", strerror(errno));
return -1;
}
}
res = decodeMP3(&p->mp,p->sbuf,p->sbuflen,p->dbuf,MP3_DCACHE,&p->dbuflen);
if(res != MP3_OK)