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Viewing changes to libclamav/jsparse/textbuf.h

  • Committer: Bazaar Package Importer
  • Author(s): Kees Cook
  • Date: 2007-02-20 10:33:44 UTC
  • mto: This revision was merged to the branch mainline in revision 16.
  • Revision ID: james.westby@ubuntu.com-20070220103344-zgcu2psnx9d98fpa
Tags: upstream-0.90
Import upstream version 0.90

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libclamav/jsparse/textbuf.h
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#ifndef TEXTBUF_H
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#define TEXTBUF_H
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struct text_buffer {
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        char *data;
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        size_t pos;
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        size_t capacity;
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};
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static inline int textbuffer_ensure_capacity(struct text_buffer *txtbuf, size_t len)
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{
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        if (txtbuf->pos + len > txtbuf->capacity) {
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                char *d;
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                unsigned capacity = MAX(txtbuf->pos + len, txtbuf->capacity + 4096);
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                d = cli_realloc(txtbuf->data, capacity);
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                if(!d)
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                        return -1;
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                txtbuf->capacity = capacity;
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                txtbuf->data = d;
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        }
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        return 0;
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}
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static inline int textbuffer_append_len(struct text_buffer *txtbuf, const char *s, size_t len)
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{
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        if(textbuffer_ensure_capacity(txtbuf, len) == -1)
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                return -1;
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        memcpy(&txtbuf->data[txtbuf->pos], s, len);
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        txtbuf->pos += len;
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        return 0;
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}
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static inline int textbuffer_append(struct text_buffer *txtbuf, const char *s)
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{
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        size_t len = strlen(s);
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        return textbuffer_append_len(txtbuf, s, len);
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}
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static inline int textbuffer_putc(struct text_buffer *txtbuf, const char c)
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{
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        if(textbuffer_ensure_capacity(txtbuf, 1) == -1)
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                return -1;
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        txtbuf->data[txtbuf->pos++] = c;
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        return 0;
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}
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#endif