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/** |
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* string.C: String functions. |
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* |
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* Copyright © 2007 Pippijn van Steenhoven / The Ermyth Team |
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* Rights to this code are as documented in COPYING. |
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* |
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* |
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* Portions of this file were derived from sources bearing the following license: |
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* Copyright © 2005 Atheme Development Group |
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* Rights to this code are documented in doc/pod/license.pod. |
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*/ |
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|
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static char const rcsid[] = "$Id: string.C,v 1.7 2007-09-16 18:54:45 pippijn Exp $"; |
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|
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#include "atheme.h" |
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#include <common/string.h> |
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|
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char * |
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sstrdup (char const * const s) |
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{ |
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char *t; |
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size_t len; |
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|
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if (s == NULL) |
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return NULL; |
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|
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t = salloc<char> (len = strlen (s) + 1); |
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|
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strlcpy (t, s, len); |
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return t; |
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} |
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|
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char * |
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sstrndup (char const *s, int len) |
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{ |
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char *t; |
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|
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if (s == NULL) |
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return NULL; |
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|
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t = salloc<char> (len + 1); |
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|
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strlcpy (t, s, len); |
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return t; |
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} |
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|
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void |
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assign (char *dst, char const *src, size_t maxlen) |
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{ |
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if (!src) |
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src = ""; |
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|
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size_t len = strlen (src); |
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|
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if (len >= maxlen - 1) |
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{ |
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if (maxlen <= 4) |
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{ |
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memset (dst, '.', maxlen - 1); |
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dst [maxlen - 1] = 0; |
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} |
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else |
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{ |
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memcpy (dst, src, maxlen - 4); |
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memcpy (dst + maxlen - 4, "...", 4); |
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} |
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} |
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else |
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memcpy (dst, src, len + 1); |
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} |
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|
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#ifndef HAVE_STRLCAT |
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/* These functions are taken from Linux. */ |
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size_t |
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strlcat (char *dest, char const *src, size_t count) |
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{ |
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size_t dsize = strlen (dest); |
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size_t len = strlen (src); |
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size_t res = dsize + len; |
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|
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dest += dsize; |
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count -= dsize; |
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if (len >= count) |
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len = count - 1; |
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memcpy (dest, src, len); |
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dest[len] = 0; |
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return res; |
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} |
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#endif |
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|
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#ifndef HAVE_STRLCPY |
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size_t |
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strlcpy (char *dest, char const *src, size_t size) |
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{ |
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size_t ret = strlen (src); |
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|
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if (size) |
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{ |
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size_t len = (ret >= size) ? size - 1 : ret; |
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memcpy (dest, src, len); |
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dest[len] = '\0'; |
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} |
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return ret; |
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} |
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#endif |
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|
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/* removes unwanted chars from a line */ |
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char const * |
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strip (char *line) |
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{ |
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char *c = 0; |
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|
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if (line) |
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{ |
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if ((c = strchr (line, '\n'))) |
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*c = '\0'; |
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if ((c = strchr (line, '\r'))) |
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*c = '\0'; |
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if ((c = strchr (line, '\1'))) |
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*c = '\0'; |
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} |
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|
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return c; |
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} |
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|
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int |
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dynstr::add (char c) |
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{ |
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if (length - pos <= 1) |
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{ |
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size_t new_size = std::max (length * 2, pos + 9); |
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length = new_size; |
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m_rep = new char[new_size]; |
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} |
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m_rep[pos] = c; |
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m_rep[++pos] = '\0'; |
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|
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return length; |
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} |
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|
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int |
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dynstr::add (char const *src, size_t len) |
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{ |
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if (length - pos <= len) |
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{ |
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size_t new_size = std::max (length * 2, pos + len + 8); |
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length = new_size; |
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m_rep = new char[new_size]; |
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} |
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memcpy (m_rep + pos, src, len); |
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pos += len; |
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m_rep[pos] = '\0'; |
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|
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return len; |
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} |
