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POfwrite add new line after each input
 

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  1. POfwrite add new line after each input
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    <p>I wanted to add a new line to separate each entry in the file.</p> <p>I tried:</p> <pre><code>show_dump(buff + "\n", len, dump_fd); </code></pre> <p>But got an error with that.</p> <p>I got this function from somewhere else, It formats the buffer sent from the client into hex and ASCII data.</p> <pre><code>/* Usage: show_dump(buffer, buffer_length, stdout); show_dump(buffer, buffer_length, fd); */ #include &lt;string.h&gt; void show_dump(unsigned char *data, unsigned int len, FILE *stream) { const static char hex[] = "0123456789abcdef"; static unsigned char buff[67]; /* HEX CHAR\n */ unsigned char chr, *bytes, *p, *limit, *glimit = data + len; memset(buff + 2, ' ', 48); while(data &lt; glimit) { limit = data + 16; if(limit &gt; glimit) { limit = glimit; memset(buff, ' ', 48); } p = buff; bytes = p + 50; while(data &lt; limit) { chr = *data; *p++ = hex[chr &gt;&gt; 4]; *p++ = hex[chr &amp; 15]; p++; *bytes++ = ((chr &lt; ' ') || (chr &gt;= 0x7f)) ? '.' : chr; data++; } *bytes++ = '\n'; fwrite(buff, bytes - buff, 1, stream); } } </code></pre> <p>This is how I'm creating the file:</p> <pre><code>if(dump) { add = dumpfile; for(i = 1; ; i++) { sprintf(add, "%d.log", i); dump_fd = fopen(dumpfile, "rb"); if(!dump_fd) break; fclose(dump_fd); } dump_fd = fopen(dumpfile, "wb"); if(!dump_fd) std_err(); } </code></pre> <p>And this is how I'm writing into the file:</p> <pre><code>if(dump_fd) show_dump(buff, len, dump_fd); </code></pre> <hr> <p>Question: Whats wrong with the code? Why is the files all written together and not line by line?</p>
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    1. This table or related slice is empty.
    1. USzikdaljin
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
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      1. POfwrite add new line after each input
      1. This table or related slice is empty.
      1. VTDownMod
    1. COAnd the question or problem is?
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      1. POfwrite add new line after each input
      1. USMichael Dorgan
    2. COC does not have a string concatenation operator; `buff + "\n"` will not work as expected.
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      1. POfwrite add new line after each input
      1. USTim Cooper
    3. COWhats wrong with the code? Why is the files all written together and not line by line?
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      1. POfwrite add new line after each input
      1. USzikdaljin
 

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