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Curl_nss_connect: avoid PATH_MAX

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Since some systems don't have PATH_MAX and it isn't that clever to
assume a fixed maximum path length, the code now allocates buffer space
instead of using stack.

Reported by: Samuel Thibault
Bug: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=608521
This commit is contained in:
Daniel Stenberg 2011-01-02 23:41:49 +01:00
parent 1ad5764feb
commit 2b3fbc8cdb
1 changed files with 12 additions and 3 deletions
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15
lib/nss.c
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@ -5,7 +5,7 @@
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2010, Daniel Stenberg, <daniel@haxx.se>, et al.
* Copyright (C) 1998 - 2011, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
@ -1265,12 +1265,21 @@ CURLcode Curl_nss_connect(struct connectdata *conn, int sockindex)
entry = PR_ReadDir(dir, PR_SKIP_BOTH | PR_SKIP_HIDDEN);
if(entry) {
char fullpath[PATH_MAX];
char *fullpath;
size_t pathlen = strlen(data->set.ssl.CApath) +
strlen(entry->name) + 2; /* add two, for slash and trailing zero */
fullpath = malloc(pathlen);
if(!fullpath) {
PR_CloseDir(dir);
curlerr = CURLE_OUT_OF_MEMORY;
goto error;
}
snprintf(fullpath, sizeof(fullpath), "%s/%s", data->set.ssl.CApath,
snprintf(fullpath, pathlen, "%s/%s", data->set.ssl.CApath,
entry->name);
rc = nss_load_cert(&conn->ssl[sockindex], fullpath, PR_TRUE);
/* FIXME: check this return value! */
free(fullpath);
}
/* This is purposefully tolerant of errors so non-PEM files
* can be in the same directory */