[sr-dev] [kamailio] http_request and curl_http_request cause crash in 4.3 and dev (#400)

[Olle E. Johansson]

Backtrace from the curl module in dev. Looks similar with the http_request in 4.3

#0  0x00007fabdd0a20d5 in raise () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#1  0x00007fabdd0a583b in abort () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#2  0x0000000000632ad0 in qm_debug_frag (qm=0x7fabdc86b010, f=0x7fabdc93cf78) at mem/q_malloc.c:142
        __FUNCTION__ = "qm_debug_frag"
#3  0x0000000000634069 in qm_malloc (qm=0x7fabdc86b010, size=296, file=0x7fabdc65ce70 "pv: pv_svar.c", 
    func=0x7fabdc65d01d "set_var_value", line=128) at mem/q_malloc.c:369
        f = 0x7fabdc93cf78
        hash = 168
        list_cntr = 1
        __FUNCTION__ = "qm_malloc"
#4  0x00007fabdc61483b in set_var_value (var=0x7fabdc942658, value=0x7ffd762e8070, flags=1) at pv_svar.c:128
        __FUNCTION__ = "set_var_value"
#5  0x00007fabdc5fbfa8 in pv_set_scriptvar (msg=0x7fabdc8a9048, param=0x7fabdc939d18, op=254, val=0x7ffd762e8150)
    at pv_core.c:1988
        avp_val = {n = -594293216, s = {
            s = 0x7fabdc93ce20 "{\"status\":\"OK\",\"uid\":\"device.john.smith\",\"dom\":\"example.com\",\"pwd\":\"7ymu0mAJ\",\"recfile\":\"20151103144733822~0313809101~unspecified~example.com~john.smith\",\"recdir\":\"example.com/2015/11/03\",\"rec\":true,"..., len = 295}, re = 0x7fabdc93ce20}
        flags = 1
        __FUNCTION__ = "pv_set_scriptvar"
#6  0x00007fabd2bc9f6e in curL_query_url (_m=0x7fabdc8a9048, 
    _url=0x7ffd762eb490 "http://mws:3001/api/rtc/devpw/INVITE/sip:0313809101%40example.com", _dst=0x7fabdc939d00 "\017", 
    _username=0x7ffd762e8490 "", _secret=0x7ffd762e9490 "", contenttype=0x7fabdc8ff698 "application/json", 
    _post=0x7fabdc93dc20 "{\"ah\":\"Digest algorithm=MD5, username=\\\"john.smith\\\", realm=\\\"example.com\\\", nonce=\\\"Vji8FVY4uulLhKFK2JwtBHn5FZ4hC6nj\\\", uri=\\\"sip:0313809101 at example.com\\\", response=\\\"802228e5c68db80d419b72925c7beee"..., 
    timeout=4, http_follow_redirect=0, oneline=0, maxdatasize=0) at functions.c:242
        datasize = 295
        curl = 0x15cb210
        res = CURLE_OK
        value = {s = 0x7ffd762eb490 "http://mws:3001/api/rtc/devpw/INVITE/sip:0313809101%40example.com", len = 66}
        url = 0x7fabdc93e590 "http://mws:3001/api/rtc/devpw/INVITE/sip:0313809101%40example.com"
        at = 0x0
        stream = {
          buf = 0x7fabdc93ce20 "{\"status\":\"OK\",\"uid\":\"device.john.smith\",\"dom\":\"example.com\",\"pwd\":\"7ymu0mAJ\",\"recfile\":\"20151103144733822~0313809101~unspecified~example.com~john.smith\",\"recdir\":\"example.com/2015/11/03\",\"rec\":true,"..., curr_size = 296, pos = 295, max_size = 0}
        stat = 200
        dst = 0x7fabdc939d00
        val = {rs = {
               s = 0x7fabdc93ce20 "{\"status\":\"OK\",\"uid\":\"device.john.smith\",\"dom\":\"example.com\",\"pwd\":\"7ymu0mAJ\",\"recfile\":\"20151103144733822~0313809101~unspecified~example.com~john.smith\",\"recdir\":\"example.com/2015/11/03\",\"rec\":true,"..., len = 295}, ri = 1982772372, flags = 4}
        download_size = 295
        total_time = 0.091017000000000001
        headerlist = 0x15c8500
        __FUNCTION__ = "curL_query_url"
#7  0x00007fabd2bcd569 in curl_con_query_url (_m=0x7fabdc8a9048, connection=0x7fabdc935868 "apiauth", 
    _url=0x7fabdc93d548 "\360\231\223ܫ\177", _result=0x7fabdc939d00 "\017", contenttype=0x7fabdc8ff698 "application/json", 
    _post=0x7fabdc939c80 "`\270\223ܫ\177") at functions.c:353
        conn = 0x7fabdc8d2810
        connstr = {s = 0x7fabdc935868 "apiauth", len = 7}
        usernamebuf = '\000' <repeats 4095 times>
        passwordbuf = '\000' <repeats 4095 times>
        connurlbuf = "mws:3001/api/rtc/devpw", '\000' <repeats 4073 times>
        urlbuf = "http://mws:3001/api/rtc/devpw/INVITE/sip:0313809101%40example.com", '\000' <repeats 445 times>
        urlbuf2 = {s = 0x7fabdc99fc00 "/INVITE/sip:0313809101%40example.com", len = 37}
        urlbuf3 = 0x7fabdc93e590 "http://mws:3001/api/rtc/devpw/INVITE/sip:0313809101%40example.com"
        postdatabuf = {
          s = 0x7fabdc9a98d0 "{\"ah\":\"Digest algorithm=MD5, username=\\\"john.smith\\\", realm=\\\"example.com\\\", nonce=\\\"Vji8FVY4uulLhKFK2JwtBHn5FZ4hC6nj\\\", uri=\\\"sip:0313809101 at example.com\\\", response=\\\"802228e5c68db80d419b72925c7beee"..., 
          len = 205}
        postdata = 0x7fabdc93dc20 "{\"ah\":\"Digest algorithm=MD5, username=\\\"john.smith\\\", realm=\\\"example.com\\\", nonce=\\\"Vji8FVY4uulLhKFK2JwtBHn5FZ4hC6nj\\\", uri=\\\"sip:0313809101 at example.com\\\", response=\\\"802228e5c68db80d419b72925c7beee"...
        maxdatasize = 0
        res = 2
        __FUNCTION__ = "curl_con_query_url"


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https://github.com/kamailio/kamailio/issues/400#issuecomment-159557372
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