mirror of https://github.com/sudo-project/sudo.git
91 lines
2.6 KiB
C
91 lines
2.6 KiB
C
/*
|
|
* SPDX-License-Identifier: ISC
|
|
*
|
|
* Copyright (c) 2011, 2014-2020 Todd C. Miller <Todd.Miller@sudo.ws>
|
|
*
|
|
* Permission to use, copy, modify, and distribute this software for any
|
|
* purpose with or without fee is hereby granted, provided that the above
|
|
* copyright notice and this permission notice appear in all copies.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
|
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
|
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
*/
|
|
|
|
/*
|
|
* This is an open source non-commercial project. Dear PVS-Studio, please check it.
|
|
* PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
|
|
*/
|
|
|
|
#include <config.h>
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
#include <sudo_compat.h>
|
|
#include <sudo_debug.h>
|
|
#include <sudo_util.h>
|
|
#include <sudo_eventlog.h>
|
|
|
|
size_t
|
|
eventlog_writeln(FILE * restrict fp, char * restrict line, size_t linelen, size_t maxlen)
|
|
{
|
|
const char *indent = "";
|
|
char *beg = line;
|
|
char *end;
|
|
int len;
|
|
size_t outlen = 0;
|
|
debug_decl(eventlog_writeln, SUDO_DEBUG_UTIL);
|
|
|
|
if (maxlen < sizeof(EVENTLOG_INDENT)) {
|
|
/* Maximum length too small, disable wrapping. */
|
|
outlen = fwrite(line, 1, linelen, fp);
|
|
if (outlen != linelen)
|
|
debug_return_size_t((size_t)-1);
|
|
if (fputc('\n', fp) == EOF)
|
|
debug_return_size_t((size_t)-1);
|
|
debug_return_size_t(outlen + 1);
|
|
}
|
|
|
|
/*
|
|
* Print out line with word wrap around maxlen characters.
|
|
*/
|
|
while (linelen > maxlen) {
|
|
end = beg + maxlen;
|
|
while (end != beg && *end != ' ')
|
|
end--;
|
|
if (beg == end) {
|
|
/* Unable to find word break within maxlen, look beyond. */
|
|
end = strchr(beg + maxlen, ' ');
|
|
if (end == NULL)
|
|
break; /* no word break */
|
|
}
|
|
len = fprintf(fp, "%s%.*s\n", indent, (int)(end - beg), beg);
|
|
if (len < 0)
|
|
debug_return_size_t((size_t)-1);
|
|
outlen += (size_t)len;
|
|
while (*end == ' ')
|
|
end++;
|
|
linelen -= (size_t)(end - beg);
|
|
beg = end;
|
|
if (indent[0] == '\0') {
|
|
indent = EVENTLOG_INDENT;
|
|
maxlen -= sizeof(EVENTLOG_INDENT) - 1;
|
|
}
|
|
}
|
|
/* Print remainder, if any. */
|
|
if (linelen) {
|
|
len = fprintf(fp, "%s%s\n", indent, beg);
|
|
if (len < 0)
|
|
debug_return_size_t((size_t)-1);
|
|
outlen += (size_t)len;
|
|
}
|
|
|
|
debug_return_size_t(outlen);
|
|
}
|