75 lines
2.0 KiB
C
75 lines
2.0 KiB
C
/*
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* Copyright (c) 2011, 2014 Todd C. Miller <Todd.Miller@courtesan.com>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <config.h>
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#include <sys/types.h>
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#include <stdio.h>
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#ifdef STDC_HEADERS
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# include <stdlib.h>
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# include <stddef.h>
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#else
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# ifdef HAVE_STDLIB_H
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# include <stdlib.h>
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# endif
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#endif /* STDC_HEADERS */
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#ifdef HAVE_STRING_H
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# include <string.h>
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#endif /* HAVE_STRING_H */
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#ifdef HAVE_STRINGS_H
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# include <strings.h>
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#endif /* HAVE_STRINGS_H */
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#include "sudoers.h"
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void
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writeln_wrap(FILE *fp, char *line, size_t len, size_t maxlen)
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{
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char *indent = "";
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char *beg = line;
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char *end;
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debug_decl(writeln_wrap, SUDOERS_DEBUG_LOGGING, sudoers_debug_instance)
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/*
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* Print out line with word wrap around maxlen characters.
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*/
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while (len > maxlen) {
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end = beg + maxlen;
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while (end != beg && *end != ' ')
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end--;
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if (beg == end) {
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/* Unable to find word break within maxlen, look beyond. */
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end = strchr(beg + maxlen, ' ');
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if (end == NULL)
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break; /* no word break */
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}
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fprintf(fp, "%s%.*s\n", indent, (int)(end - beg), beg);
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while (*end == ' ')
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end++;
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len -= (end - beg);
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beg = end;
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if (indent[0] == '\0') {
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indent = LOG_INDENT;
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maxlen -= sizeof(LOG_INDENT) - 1;
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}
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}
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/* Print remainder, if any. */
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if (len)
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fprintf(fp, "%s%s\n", indent, beg);
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debug_return;
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}
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