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Create add-user.svg from add-user.c
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Michael Hohn
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=Michael Hohn
=Michael Hohn
parent
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commit
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add-user.svg
Normal file
997
add-user.svg
Normal file
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fill="#666666"
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id="text140"
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style="font-size:14px;font-family:monospace"> fprintf(stderr, <tspan
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fill="#ba2121"
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fill="#ba2121"
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style="font-size:14px;font-family:monospace"><tspan
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style="font-size:14px;font-family:monospace"> <tspan
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y="470"
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xml:space="preserve"
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id="text174"
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style="font-size:14px;font-family:monospace"> fprintf(stderr, <tspan
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fill="#ba2121"
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fill="#ba2121"
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font-weight="bold"
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xml:space="preserve"
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id="text178"
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style="font-size:14px;font-family:monospace"> fflush(stderr);</text>
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style="font-size:14px;font-family:monospace"> abort();</text>
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style="font-size:14px;font-family:monospace"><tspan
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fill="#0000ff"
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fill="#b00040"
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id="tspan192">int</tspan> rc, sqlite3 <tspan
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fill="#666666"
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id="tspan194">*</tspan>db, <tspan
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fill="#b00040"
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id="tspan196">char</tspan><tspan
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fill="#666666"
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id="tspan198">*</tspan> zErrMsg) {</text>
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<text
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xml:space="preserve"
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id="text208"
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style="font-size:14px;font-family:monospace"> <tspan
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fill="#008000"
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font-weight="bold"
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id="tspan202">if</tspan>( rc<tspan
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fill="#666666"
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fill="#666666"
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<text
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y="641"
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xml:space="preserve"
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id="text218"
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style="font-size:14px;font-family:monospace"> fprintf(stderr, <tspan
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fill="#ba2121"
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id="tspan210">"</tspan><tspan
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fill="#ba2121"
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id="tspan212">SQL error: %s</tspan><tspan
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fill="#bb6622"
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font-weight="bold"
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id="tspan214">\n</tspan><tspan
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fill="#ba2121"
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id="tspan216">"</tspan>, zErrMsg);</text>
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<text
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x="0"
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y="660"
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xml:space="preserve"
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id="text220"
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style="font-size:14px;font-family:monospace"> sqlite3_free(zErrMsg);</text>
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<text
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y="679"
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xml:space="preserve"
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id="text222"
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style="font-size:14px;font-family:monospace"> sqlite3_close(db);</text>
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<text
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xml:space="preserve"
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id="text224"
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style="font-size:14px;font-family:monospace"> fflush(stderr);</text>
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<text
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xml:space="preserve"
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style="font-size:14px;font-family:monospace"> abort();</text>
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<text
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style="font-size:14px;font-family:monospace"><tspan
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fill="#b00040"
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id="tspan234">char</tspan><tspan
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fill="#666666"
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id="tspan236">*</tspan> <tspan
|
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fill="#0000ff"
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id="tspan238">get_user_info</tspan>() {</text>
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<text
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|
||||
fill="#bc7a00"
|
||||
id="tspan242">#</tspan><tspan
|
||||
fill="#bc7a00"
|
||||
id="tspan244">define BUFSIZE 1024</tspan><tspan
|
||||
fill="#bc7a00"
|
||||
id="tspan246" /></text>
|
||||
<text
|
||||
x="0"
|
||||
y="831"
|
||||
xml:space="preserve"
|
||||
id="text268"
|
||||
style="font-size:14px;font-family:monospace"><tspan
|
||||
fill="#bc7a00"
|
||||
id="tspan250" /> <tspan
|
||||
fill="#b00040"
|
||||
id="tspan252">char</tspan><tspan
|
||||
fill="#666666"
|
||||
id="tspan254">*</tspan> buf <tspan
|
||||
fill="#666666"
|
||||
id="tspan256">=</tspan> (<tspan
|
||||
fill="#b00040"
|
||||
id="tspan258">char</tspan><tspan
|
||||
fill="#666666"
|
||||
id="tspan260">*</tspan>) malloc(BUFSIZE <tspan
|
||||
fill="#666666"
|
||||
id="tspan262">*</tspan> <tspan
|
||||
fill="#008000"
|
||||
font-weight="bold"
|
||||
id="tspan264">sizeof</tspan>(<tspan
|
||||
fill="#b00040"
|
||||
id="tspan266">char</tspan>));</text>
|
||||
<text
|
||||
x="0"
|
||||
y="850"
|
||||
xml:space="preserve"
|
||||
id="text272"
|
||||
style="font-size:14px;font-family:monospace"> <tspan
|
||||
fill="#b00040"
|
||||
id="tspan270">int</tspan> count;</text>
|
||||
<text
|
||||
x="0"
|
||||
y="869"
|
||||
xml:space="preserve"
|
||||
id="text276"
|
||||
style="font-size:14px;font-family:monospace"> <tspan
|
||||
fill="#408080"
|
||||
font-style="italic"
|
||||
id="tspan274">// Disable buffering to avoid need for fflush</tspan></text>
|
||||
<text
|
||||
x="0"
|
||||
y="888"
|
||||
xml:space="preserve"
|
||||
id="text282"
|
||||
style="font-size:14px;font-family:monospace"><tspan
|
||||
fill="#408080"
|
||||
font-style="italic"
|
||||
id="tspan278" /> <tspan
|
||||
fill="#408080"
|
||||
font-style="italic"
|
||||
id="tspan280">// after printf().</tspan></text>
|
||||
<text
|
||||
x="0"
|
||||
y="907"
|
||||
xml:space="preserve"
|
||||
id="text288"
|
||||
style="font-size:14px;font-family:monospace"><tspan
|
||||
fill="#408080"
|
||||
font-style="italic"
|
||||
id="tspan284" /> setbuf( stdout, <tspan
|
||||
fill="#008000"
|
||||
id="tspan286">NULL</tspan> );</text>
|
||||
<text
|
||||
x="0"
|
||||
y="926"
|
||||
xml:space="preserve"
|
||||
id="text298"
|
||||
style="font-size:14px;font-family:monospace"> printf(<tspan
|
||||
fill="#ba2121"
|
||||
id="tspan290">"</tspan><tspan
|
||||
fill="#ba2121"
|
||||
id="tspan292">*** Welcome to sql injection ***</tspan><tspan
|
||||
fill="#bb6622"
|
||||
font-weight="bold"
|
||||
id="tspan294">\n</tspan><tspan
|
||||
fill="#ba2121"
|
||||
id="tspan296">"</tspan>);</text>
|
||||
<text
|
||||
x="0"
|
||||
y="945"
|
||||
xml:space="preserve"
|
||||
id="text306"
|
||||
style="font-size:14px;font-family:monospace"> printf(<tspan
|
||||
fill="#ba2121"
|
||||
id="tspan300">"</tspan><tspan
|
||||
fill="#ba2121"
|
||||
id="tspan302">Please enter name: </tspan><tspan
|
||||
fill="#ba2121"
|
||||
id="tspan304">"</tspan>);</text>
|
||||
<text
|
||||
x="0"
|
||||
y="964"
|
||||
xml:space="preserve"
|
||||
id="text310"
|
||||
style="font-size:14px;font-family:monospace"> count <tspan
|
||||
fill="#666666"
|
||||
id="tspan308">=</tspan> read(STDIN_FILENO, buf, BUFSIZE);</text>
|
||||
<text
|
||||
x="0"
|
||||
y="983"
|
||||
xml:space="preserve"
|
||||
id="text320"
|
||||
style="font-size:14px;font-family:monospace"> <tspan
|
||||
fill="#008000"
|
||||
font-weight="bold"
|
||||
id="tspan312">if</tspan> (count <tspan
|
||||
fill="#666666"
|
||||
id="tspan314"><</tspan><tspan
|
||||
fill="#666666"
|
||||
id="tspan316">=</tspan> <tspan
|
||||
fill="#666666"
|
||||
id="tspan318">0</tspan>) abort();</text>
|
||||
<text
|
||||
x="0"
|
||||
y="1002"
|
||||
xml:space="preserve"
|
||||
id="text324"
|
||||
style="font-size:14px;font-family:monospace"> <tspan
|
||||
fill="#408080"
|
||||
font-style="italic"
|
||||
id="tspan322">/* strip trailing whitespace */</tspan></text>
|
||||
<text
|
||||
x="0"
|
||||
y="1021"
|
||||
xml:space="preserve"
|
||||
id="text336"
|
||||
style="font-size:14px;font-family:monospace"> <tspan
|
||||
fill="#008000"
|
||||
font-weight="bold"
|
||||
id="tspan326">while</tspan> (count <tspan
|
||||
fill="#666666"
|
||||
id="tspan328">&</tspan><tspan
|
||||
fill="#666666"
|
||||
id="tspan330">&</tspan> isspace(buf[count<tspan
|
||||
fill="#666666"
|
||||
id="tspan332">-</tspan><tspan
|
||||
fill="#666666"
|
||||
id="tspan334">1</tspan>])) {</text>
|
||||
<text
|
||||
x="0"
|
||||
y="1040"
|
||||
xml:space="preserve"
|
||||
id="text350"
|
||||
style="font-size:14px;font-family:monospace"> buf[count<tspan
|
||||
fill="#666666"
|
||||
id="tspan338">-</tspan><tspan
|
||||
fill="#666666"
|
||||
id="tspan340">1</tspan>] <tspan
|
||||
fill="#666666"
|
||||
id="tspan342">=</tspan> <tspan
|
||||
fill="#666666"
|
||||
id="tspan344">0</tspan>; <tspan
|
||||
fill="#666666"
|
||||
id="tspan346">-</tspan><tspan
|
||||
fill="#666666"
|
||||
id="tspan348">-</tspan>count;</text>
|
||||
<text
|
||||
x="0"
|
||||
y="1059"
|
||||
xml:space="preserve"
|
||||
id="text352"
|
||||
style="font-size:14px;font-family:monospace"> }</text>
|
||||
<text
|
||||
x="0"
|
||||
y="1078"
|
||||
xml:space="preserve"
|
||||
id="text356"
|
||||
style="font-size:14px;font-family:monospace"> <tspan
|
||||
fill="#008000"
|
||||
font-weight="bold"
|
||||
id="tspan354">return</tspan> buf;</text>
|
||||
<text
|
||||
x="0"
|
||||
y="1097"
|
||||
xml:space="preserve"
|
||||
id="text358"
|
||||
style="font-size:14px;font-family:monospace">}</text>
|
||||
<text
|
||||
x="0"
|
||||
y="1116"
|
||||
xml:space="preserve"
|
||||
id="text360"
|
||||
style="font-size:14px;font-family:monospace" />
|
||||
<text
|
||||
x="0"
|
||||
y="1135"
|
||||
xml:space="preserve"
|
||||
id="text366"
|
||||
style="font-size:14px;font-family:monospace"><tspan
|
||||
fill="#b00040"
|
||||
id="tspan362">int</tspan> <tspan
|
||||
fill="#0000ff"
|
||||
id="tspan364">get_new_id</tspan>() {</text>
|
||||
<text
|
||||
x="0"
|
||||
y="1154"
|
||||
xml:space="preserve"
|
||||
id="text372"
|
||||
style="font-size:14px;font-family:monospace"> <tspan
|
||||
fill="#b00040"
|
||||
id="tspan368">int</tspan> id <tspan
|
||||
fill="#666666"
|
||||
id="tspan370">=</tspan> getpid();</text>
|
||||
<text
|
||||
x="0"
|
||||
y="1173"
|
||||
xml:space="preserve"
|
||||
id="text376"
|
||||
style="font-size:14px;font-family:monospace"> <tspan
|
||||
fill="#008000"
|
||||
font-weight="bold"
|
||||
id="tspan374">return</tspan> id;</text>
|
||||
<text
|
||||
x="0"
|
||||
y="1192"
|
||||
xml:space="preserve"
|
||||
id="text378"
|
||||
style="font-size:14px;font-family:monospace">}</text>
|
||||
<text
|
||||
x="0"
|
||||
y="1211"
|
||||
xml:space="preserve"
|
||||
id="text380"
|
||||
style="font-size:14px;font-family:monospace" />
|
||||
<text
|
||||
x="0"
|
||||
y="1230"
|
||||
xml:space="preserve"
|
||||
id="text392"
|
||||
style="font-size:14px;font-family:monospace"><tspan
|
||||
fill="#b00040"
|
||||
id="tspan382">void</tspan> <tspan
|
||||
fill="#0000ff"
|
||||
id="tspan384">write_info</tspan>(<tspan
|
||||
fill="#b00040"
|
||||
id="tspan386">int</tspan> id, <tspan
|
||||
fill="#b00040"
|
||||
id="tspan388">char</tspan><tspan
|
||||
fill="#666666"
|
||||
id="tspan390">*</tspan> info) {</text>
|
||||
<text
|
||||
x="0"
|
||||
y="1249"
|
||||
xml:space="preserve"
|
||||
id="text396"
|
||||
style="font-size:14px;font-family:monospace"> sqlite3 <tspan
|
||||
fill="#666666"
|
||||
id="tspan394">*</tspan>db;</text>
|
||||
<text
|
||||
x="0"
|
||||
y="1268"
|
||||
xml:space="preserve"
|
||||
id="text400"
|
||||
style="font-size:14px;font-family:monospace"> <tspan
|
||||
fill="#b00040"
|
||||
id="tspan398">int</tspan> rc;</text>
|
||||
<text
|
||||
x="0"
|
||||
y="1287"
|
||||
xml:space="preserve"
|
||||
id="text408"
|
||||
style="font-size:14px;font-family:monospace"> <tspan
|
||||
fill="#b00040"
|
||||
id="tspan402">int</tspan> bufsize <tspan
|
||||
fill="#666666"
|
||||
id="tspan404">=</tspan> <tspan
|
||||
fill="#666666"
|
||||
id="tspan406">1024</tspan>;</text>
|
||||
<text
|
||||
x="0"
|
||||
y="1306"
|
||||
xml:space="preserve"
|
||||
id="text418"
|
||||
style="font-size:14px;font-family:monospace"> <tspan
|
||||
fill="#b00040"
|
||||
id="tspan410">char</tspan> <tspan
|
||||
fill="#666666"
|
||||
id="tspan412">*</tspan>zErrMsg <tspan
|
||||
fill="#666666"
|
||||
id="tspan414">=</tspan> <tspan
|
||||
fill="#666666"
|
||||
id="tspan416">0</tspan>;</text>
|
||||
<text
|
||||
x="0"
|
||||
y="1325"
|
||||
xml:space="preserve"
|
||||
id="text422"
|
||||
style="font-size:14px;font-family:monospace"> <tspan
|
||||
fill="#b00040"
|
||||
id="tspan420">char</tspan> query[bufsize];</text>
|
||||
<text
|
||||
x="0"
|
||||
y="1344"
|
||||
xml:space="preserve"
|
||||
id="text424"
|
||||
style="font-size:14px;font-family:monospace"> </text>
|
||||
<text
|
||||
x="0"
|
||||
y="1363"
|
||||
xml:space="preserve"
|
||||
id="text428"
|
||||
style="font-size:14px;font-family:monospace"> <tspan
|
||||
fill="#408080"
|
||||
font-style="italic"
|
||||
id="tspan426">/* open db */</tspan></text>
|
||||
<text
|
||||
x="0"
|
||||
y="1382"
|
||||
xml:space="preserve"
|
||||
id="text440"
|
||||
style="font-size:14px;font-family:monospace"> rc <tspan
|
||||
fill="#666666"
|
||||
id="tspan430">=</tspan> sqlite3_open(<tspan
|
||||
fill="#ba2121"
|
||||
id="tspan432">"</tspan><tspan
|
||||
fill="#ba2121"
|
||||
id="tspan434">users.sqlite</tspan><tspan
|
||||
fill="#ba2121"
|
||||
id="tspan436">"</tspan>, <tspan
|
||||
fill="#666666"
|
||||
id="tspan438">&</tspan>db);</text>
|
||||
<text
|
||||
x="0"
|
||||
y="1401"
|
||||
xml:space="preserve"
|
||||
id="text442"
|
||||
style="font-size:14px;font-family:monospace"> abort_on_error(rc, db);</text>
|
||||
<text
|
||||
x="0"
|
||||
y="1420"
|
||||
xml:space="preserve"
|
||||
id="text444"
|
||||
style="font-size:14px;font-family:monospace" />
|
||||
<text
|
||||
x="0"
|
||||
y="1439"
|
||||
xml:space="preserve"
|
||||
id="text448"
|
||||
style="font-size:14px;font-family:monospace"> <tspan
|
||||
fill="#408080"
|
||||
font-style="italic"
|
||||
id="tspan446">/* Format query */</tspan></text>
|
||||
<text
|
||||
x="0"
|
||||
y="1458"
|
||||
xml:space="preserve"
|
||||
id="text456"
|
||||
style="font-size:14px;font-family:monospace"> snprintf(query, bufsize, <tspan
|
||||
fill="#ba2121"
|
||||
id="tspan450">"</tspan><tspan
|
||||
fill="#ba2121"
|
||||
id="tspan452">INSERT INTO users VALUES (%d, '%s')</tspan><tspan
|
||||
fill="#ba2121"
|
||||
id="tspan454">"</tspan>, id, info);</text>
|
||||
<text
|
||||
x="0"
|
||||
y="1477"
|
||||
xml:space="preserve"
|
||||
id="text466"
|
||||
style="font-size:14px;font-family:monospace"> write_log(<tspan
|
||||
fill="#ba2121"
|
||||
id="tspan458">"</tspan><tspan
|
||||
fill="#ba2121"
|
||||
id="tspan460">query: %s</tspan><tspan
|
||||
fill="#bb6622"
|
||||
font-weight="bold"
|
||||
id="tspan462">\n</tspan><tspan
|
||||
fill="#ba2121"
|
||||
id="tspan464">"</tspan>, query);</text>
|
||||
<text
|
||||
x="0"
|
||||
y="1496"
|
||||
xml:space="preserve"
|
||||
id="text468"
|
||||
style="font-size:14px;font-family:monospace" />
|
||||
<text
|
||||
x="0"
|
||||
y="1515"
|
||||
xml:space="preserve"
|
||||
id="text472"
|
||||
style="font-size:14px;font-family:monospace"> <tspan
|
||||
fill="#408080"
|
||||
font-style="italic"
|
||||
id="tspan470">/* Write info */</tspan></text>
|
||||
<text
|
||||
x="0"
|
||||
y="1534"
|
||||
xml:space="preserve"
|
||||
id="text482"
|
||||
style="font-size:14px;font-family:monospace"> rc <tspan
|
||||
fill="#666666"
|
||||
id="tspan474">=</tspan> sqlite3_exec(db, query, <tspan
|
||||
fill="#008000"
|
||||
id="tspan476">NULL</tspan>, <tspan
|
||||
fill="#666666"
|
||||
id="tspan478">0</tspan>, <tspan
|
||||
fill="#666666"
|
||||
id="tspan480">&</tspan>zErrMsg);</text>
|
||||
<text
|
||||
x="0"
|
||||
y="1553"
|
||||
xml:space="preserve"
|
||||
id="text484"
|
||||
style="font-size:14px;font-family:monospace"> abort_on_exec_error(rc, db, zErrMsg);</text>
|
||||
<text
|
||||
x="0"
|
||||
y="1572"
|
||||
xml:space="preserve"
|
||||
id="text486"
|
||||
style="font-size:14px;font-family:monospace" />
|
||||
<text
|
||||
x="0"
|
||||
y="1591"
|
||||
xml:space="preserve"
|
||||
id="text488"
|
||||
style="font-size:14px;font-family:monospace"> sqlite3_close(db);</text>
|
||||
<text
|
||||
x="0"
|
||||
y="1610"
|
||||
xml:space="preserve"
|
||||
id="text490"
|
||||
style="font-size:14px;font-family:monospace">}</text>
|
||||
<text
|
||||
x="0"
|
||||
y="1629"
|
||||
xml:space="preserve"
|
||||
id="text492"
|
||||
style="font-size:14px;font-family:monospace" />
|
||||
<text
|
||||
x="0"
|
||||
y="1648"
|
||||
xml:space="preserve"
|
||||
id="text504"
|
||||
style="font-size:14px;font-family:monospace"><tspan
|
||||
fill="#b00040"
|
||||
id="tspan494">int</tspan> <tspan
|
||||
fill="#0000ff"
|
||||
id="tspan496">main</tspan>(<tspan
|
||||
fill="#b00040"
|
||||
id="tspan498">int</tspan> argc, <tspan
|
||||
fill="#b00040"
|
||||
id="tspan500">char</tspan><tspan
|
||||
fill="#666666"
|
||||
id="tspan502">*</tspan> argv[]) {</text>
|
||||
<text
|
||||
x="0"
|
||||
y="1667"
|
||||
xml:space="preserve"
|
||||
id="text510"
|
||||
style="font-size:14px;font-family:monospace"> <tspan
|
||||
fill="#b00040"
|
||||
id="tspan506">char</tspan><tspan
|
||||
fill="#666666"
|
||||
id="tspan508">*</tspan> info;</text>
|
||||
<text
|
||||
x="0"
|
||||
y="1686"
|
||||
xml:space="preserve"
|
||||
id="text514"
|
||||
style="font-size:14px;font-family:monospace"> <tspan
|
||||
fill="#b00040"
|
||||
id="tspan512">int</tspan> id;</text>
|
||||
<text
|
||||
x="0"
|
||||
y="1705"
|
||||
xml:space="preserve"
|
||||
id="text518"
|
||||
style="font-size:14px;font-family:monospace"> info <tspan
|
||||
fill="#666666"
|
||||
id="tspan516">=</tspan> get_user_info();</text>
|
||||
<text
|
||||
x="0"
|
||||
y="1724"
|
||||
xml:space="preserve"
|
||||
id="text522"
|
||||
style="font-size:14px;font-family:monospace"> id <tspan
|
||||
fill="#666666"
|
||||
id="tspan520">=</tspan> get_new_id();</text>
|
||||
<text
|
||||
x="0"
|
||||
y="1743"
|
||||
xml:space="preserve"
|
||||
id="text524"
|
||||
style="font-size:14px;font-family:monospace"> write_info(id, info);</text>
|
||||
<text
|
||||
x="0"
|
||||
y="1762"
|
||||
xml:space="preserve"
|
||||
id="text528"
|
||||
style="font-size:14px;font-family:monospace"> <tspan
|
||||
fill="#408080"
|
||||
font-style="italic"
|
||||
id="tspan526">/*</tspan></text>
|
||||
<text
|
||||
x="0"
|
||||
y="1781"
|
||||
xml:space="preserve"
|
||||
id="text532"
|
||||
style="font-size:14px;font-family:monospace"><tspan
|
||||
fill="#408080"
|
||||
font-style="italic"
|
||||
id="tspan530"> * show_info(id);</tspan></text>
|
||||
<text
|
||||
x="0"
|
||||
y="1800"
|
||||
xml:space="preserve"
|
||||
id="text536"
|
||||
style="font-size:14px;font-family:monospace"><tspan
|
||||
fill="#408080"
|
||||
font-style="italic"
|
||||
id="tspan534"> */</tspan></text>
|
||||
<text
|
||||
x="0"
|
||||
y="1819"
|
||||
xml:space="preserve"
|
||||
id="text538"
|
||||
style="font-size:14px;font-family:monospace">}</text>
|
||||
<text
|
||||
x="0"
|
||||
y="1838"
|
||||
xml:space="preserve"
|
||||
id="text540"
|
||||
style="font-size:14px;font-family:monospace" />
|
||||
</svg>
|
||||
|
After Width: | Height: | Size: 26 KiB |
Reference in New Issue
Block a user