#include <stdio.h>
#include <stdlib.h>
#include <libgen.h>

#include "cpp.h"
#include "str.h"
#include "proc.h"
#include "xmalloc.h"

static size_t argv_len(char *const argv[])
{
	size_t len = 0;

	for (; argv && *argv; argv++)
		len++;

	return len;
}

int cpp_exec(char *in_file, char *out_file, size_t out_len, char *const argv[])
{
	size_t argc = 7 + argv_len(argv);
	char *tmp = xstrdup(in_file);
	char **cpp_argv;
	int fd, ret = -1;
	char *base;
	unsigned int i = 0;

	base = basename(tmp);
	slprintf(out_file, out_len, "/tmp/.tmp-XXXXXX-%s", base);
	fd = mkstemps(out_file, strlen(base) + 1);
	if (fd < 0)
		goto err;

	cpp_argv = xmalloc(argc * sizeof(char *));

	cpp_argv[i++] = "cpp";

	for (; argv && *argv; argv++, i++)
		cpp_argv[i] = *argv;

	cpp_argv[i++] = "-I";
	cpp_argv[i++] = ETCDIRE_STRING;
	cpp_argv[i++] = "-o";
	cpp_argv[i++] = out_file;
	cpp_argv[i++] = in_file;
	cpp_argv[i++] = NULL;

	ret = proc_exec("cpp", cpp_argv);
	close(fd);

	xfree(cpp_argv);
err:
	xfree(tmp);
	return ret;
}
p</option>
<option value='master'>master</option>
<option value='nds-private-remove' selected='selected'>nds-private-remove</option>
<option value='packet-loop-back'>packet-loop-back</option>
<option value='packet-rx-pump-back'>packet-rx-pump-back</option>
</select> <input type='submit' value='switch'/></form></td></tr>
<tr><td class='sub'>net-next plumbings</td><td class='sub right'>Tobias Klauser</td></tr></table>
<table class='tabs'><tr><td>
<a href='/cgit.cgi/linux/net-next.git/?h=nds-private-remove'>summary</a><a href='/cgit.cgi/linux/net-next.git/refs/?h=nds-private-remove'>refs</a><a class='active' href='/cgit.cgi/linux/net-next.git/log/sound/pci/via82xx.c?h=nds-private-remove&amp;showmsg=1'>log</a><a href='/cgit.cgi/linux/net-next.git/tree/sound/pci/via82xx.c?h=nds-private-remove'>tree</a><a href='/cgit.cgi/linux/net-next.git/commit/sound/pci/via82xx.c?h=nds-private-remove'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/sound/pci/via82xx.c?h=nds-private-remove'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/sound/pci/via82xx.c'>
<input type='hidden' name='h' value='nds-private-remove'/><input type='hidden' name='showmsg' value='1'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/log/?h=nds-private-remove&amp;showmsg=1'>root</a>/<a href='/cgit.cgi/linux/net-next.git/log/sound?h=nds-private-remove&amp;showmsg=1'>sound</a>/<a href='/cgit.cgi/linux/net-next.git/log/sound/pci?h=nds-private-remove&amp;showmsg=1'>pci</a>/<a href='/cgit.cgi/linux/net-next.git/log/sound/pci/via82xx.c?h=nds-private-remove&amp;showmsg=1'>via82xx.c</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/cgit.cgi/linux/net-next.git/log/sound/pci/via82xx.c?h=nds-private-remove'>Collapse</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></tr>