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mime: check Curl_rand_hex's return code

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Bug: https://curl.haxx.se/mail/archive-2018-07/0015.html
Reported-by: Jeffrey Walton
Closes #2795
This commit is contained in:
Daniel Stenberg 2018-07-26 16:55:59 +03:00
parent 7f5e570616
commit d390541944
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GPG key ID: 5CC908FDB71E12C2
1 changed files with 7 additions and 2 deletions
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9
lib/mime.c
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@ -1228,8 +1228,13 @@ curl_mime *curl_mime_init(struct Curl_easy *easy)
}
memset(mime->boundary, '-', 24);
Curl_rand_hex(easy, (unsigned char *) mime->boundary + 24,
MIME_RAND_BOUNDARY_CHARS + 1);
if(Curl_rand_hex(easy, (unsigned char *) mime->boundary + 24,
MIME_RAND_BOUNDARY_CHARS + 1)) {
/* failed to get random separator, bail out */
free(mime->boundary);
free(mime);
return NULL;
}
mimesetstate(&mime->state, MIMESTATE_BEGIN, NULL);
}