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Diffstat (limited to 'contrib/sendmail/libsm/util.c')
| -rw-r--r-- | contrib/sendmail/libsm/util.c | 250 |
1 files changed, 0 insertions, 250 deletions
diff --git a/contrib/sendmail/libsm/util.c b/contrib/sendmail/libsm/util.c deleted file mode 100644 index 2b99a49..0000000 --- a/contrib/sendmail/libsm/util.c +++ /dev/null @@ -1,250 +0,0 @@ -/* - * Copyright (c) 2006 Sendmail, Inc. and its suppliers. - * All rights reserved. - * - * By using this file, you agree to the terms and conditions set - * forth in the LICENSE file which can be found at the top level of - * the sendmail distribution. - * - */ - -#include <sm/gen.h> - -SM_RCSID("@(#)$Id: util.c,v 1.9 2006/08/30 18:35:51 ca Exp $") -#include <sm/setjmp.h> -#include <sm/conf.h> -#include <sm/assert.h> -#include <sm/heap.h> -#include <sm/string.h> -#include <sm/sendmail.h> -#include <ctype.h> - -/* -** STR2PRT -- convert "unprintable" characters in a string to \oct -** -** Parameters: -** s -- string to convert -** -** Returns: -** converted string. -** This is a static local buffer, string must be copied -** before this function is called again! -*/ - -char * -str2prt(s) - char *s; -{ - int l; - char c, *h; - bool ok; - static int len = 0; - static char *buf = NULL; - - if (s == NULL) - return NULL; - ok = true; - for (h = s, l = 1; *h != '\0'; h++, l++) - { - if (*h == '\\') - { - ++l; - ok = false; - } - else if (!(isascii(*h) && isprint(*h))) - { - l += 3; - ok = false; - } - } - if (ok) - return s; - if (l > len) - { - char *nbuf = sm_pmalloc_x(l); - - if (buf != NULL) - sm_free(buf); - len = l; - buf = nbuf; - } - for (h = buf; *s != '\0' && l > 0; s++, l--) - { - c = *s; - if (isascii(c) && isprint(c) && c != '\\') - { - *h++ = c; - } - else - { - *h++ = '\\'; - --l; - switch (c) - { - case '\\': - *h++ = '\\'; - break; - case '\t': - *h++ = 't'; - break; - case '\n': - *h++ = 'n'; - break; - case '\r': - *h++ = 'r'; - break; - default: - SM_ASSERT(l >= 2); - (void) sm_snprintf(h, l, "%03o", - (unsigned int)((unsigned char) c)); - - /* - ** XXX since l is unsigned this may - ** wrap around if the calculation is screwed - ** up... - */ - - l -= 2; - h += 3; - break; - } - } - } - *h = '\0'; - buf[len - 1] = '\0'; - return buf; -} - -/* -** QUOTE_INTERNAL_CHARS -- do quoting of internal characters -** -** Necessary to make sure that we don't have metacharacters such -** as the internal versions of "$*" or "$&" in a string. -** The input and output pointers can be the same. -** -** Parameters: -** ibp -- a pointer to the string to translate -** obp -- a pointer to an output buffer -** bsp -- pointer to the length of the output buffer -** -** Returns: -** A possibly new bp (if the buffer needed to grow); if -** it is different, *bsp will updated to the size of -** the new buffer and the caller is responsible for -** freeing the memory. -*/ - -#define SM_MM_QUOTE(ch) (((ch) & 0377) == METAQUOTE || (((ch) & 0340) == 0200)) - -char * -quote_internal_chars(ibp, obp, bsp) - char *ibp; - char *obp; - int *bsp; -{ - char *ip, *op; - int bufused, olen; - bool buffer_same, needs_quoting; - - buffer_same = ibp == obp; - needs_quoting = false; - - /* determine length of output string (starts at 1 for trailing '\0') */ - for (ip = ibp, olen = 1; *ip != '\0'; ip++, olen++) - { - if (SM_MM_QUOTE(*ip)) - { - olen++; - needs_quoting = true; - } - } - - /* is the output buffer big enough? */ - if (olen > *bsp) - { - obp = sm_malloc_x(olen); - buffer_same = false; - *bsp = olen; - } - - /* - ** shortcut: no change needed? - ** Note: we don't check this first as some bozo may use the same - ** buffers but restrict the size of the output buffer to less - ** than the length of the input buffer in which case we need to - ** allocate a new buffer. - */ - - if (!needs_quoting) - { - if (!buffer_same) - { - bufused = sm_strlcpy(obp, ibp, *bsp); - SM_ASSERT(bufused <= olen); - } - return obp; - } - - if (buffer_same) - { - obp = sm_malloc_x(olen); - buffer_same = false; - *bsp = olen; - } - - for (ip = ibp, op = obp, bufused = 0; *ip != '\0'; ip++) - { - if (SM_MM_QUOTE(*ip)) - { - SM_ASSERT(bufused < olen); - op[bufused++] = METAQUOTE; - } - SM_ASSERT(bufused < olen); - op[bufused++] = *ip; - } - op[bufused] = '\0'; - return obp; -} - -/* -** DEQUOTE_INTERNAL_CHARS -- undo the effect of quote_internal_chars -** -** Parameters: -** ibp -- a pointer to the string to be translated. -** obp -- a pointer to the output buffer. Can be the -** same as ibp. -** obs -- the size of the output buffer. -** -** Returns: -** number of character added to obp -*/ - -int -dequote_internal_chars(ibp, obp, obs) - char *ibp; - char *obp; - int obs; -{ - char *ip, *op; - int len; - bool quoted; - - quoted = false; - len = 0; - for (ip = ibp, op = obp; *ip != '\0'; ip++) - { - if ((*ip & 0377) == METAQUOTE && !quoted) - { - quoted = true; - continue; - } - if (op < &obp[obs - 1]) - { - *op++ = *ip; - ++len; - } - quoted = false; - } - *op = '\0'; - return len; -} |
