Annotation of embedaddon/sudo/plugins/sudoers/logwrap.c, revision 1.1

1.1     ! misho       1: /*
        !             2:  * Copyright (c) 2011 Todd C. Miller <Todd.Miller@courtesan.com>
        !             3:  *
        !             4:  * Permission to use, copy, modify, and distribute this software for any
        !             5:  * purpose with or without fee is hereby granted, provided that the above
        !             6:  * copyright notice and this permission notice appear in all copies.
        !             7:  *
        !             8:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
        !             9:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
        !            10:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
        !            11:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
        !            12:  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
        !            13:  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
        !            14:  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
        !            15:  */
        !            16: 
        !            17: #include <config.h>
        !            18: 
        !            19: #include <sys/types.h>
        !            20: #include <stdio.h>
        !            21: #ifdef STDC_HEADERS
        !            22: # include <stdlib.h>
        !            23: # include <stddef.h>
        !            24: #else
        !            25: # ifdef HAVE_STDLIB_H
        !            26: #  include <stdlib.h>
        !            27: # endif
        !            28: #endif /* STDC_HEADERS */
        !            29: #ifdef HAVE_STRING_H
        !            30: # include <string.h>
        !            31: #endif /* HAVE_STRING_H */
        !            32: #ifdef HAVE_STRINGS_H
        !            33: # include <strings.h>
        !            34: #endif /* HAVE_STRINGS_H */
        !            35: 
        !            36: #include "sudoers.h"
        !            37: 
        !            38: void
        !            39: writeln_wrap(FILE *fp, char *line, size_t len, size_t maxlen)
        !            40: {
        !            41:     char *indent = "";
        !            42:     char *beg = line;
        !            43:     char *end;
        !            44: 
        !            45:     /*
        !            46:      * Print out line with word wrap around maxlen characters.
        !            47:      */
        !            48:     beg = line;
        !            49:     while (len > maxlen) {
        !            50:        end = beg + maxlen;
        !            51:        while (end != beg && *end != ' ')
        !            52:            end--;
        !            53:        if (beg == end) {
        !            54:            /* Unable to find word break within maxlen, look beyond. */
        !            55:            end = strchr(beg + maxlen, ' ');
        !            56:            if (end == NULL)
        !            57:                break;  /* no word break */
        !            58:        }
        !            59:        fprintf(fp, "%s%.*s\n", indent, (int)(end - beg), beg);
        !            60:        while (*end == ' ')
        !            61:            end++;
        !            62:        len -= (end - beg);
        !            63:        beg = end;
        !            64:        if (indent[0] == '\0') {
        !            65:            indent = LOG_INDENT;
        !            66:            maxlen -= sizeof(LOG_INDENT) - 1;
        !            67:        }
        !            68:     }
        !            69:     /* Print remainder, if any. */
        !            70:     if (len)
        !            71:        fprintf(fp, "%s%s\n", indent, beg);
        !            72: }

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