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extern int foo (void);
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extern int foo (void);
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int
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int
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avi_parse_comments (int fd, char *buf, int space_left)
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avi_parse_comments (int fd, char *buf, int space_left)
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{
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{
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int len = 0, readlen = 0, k;
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int len = 0, readlen = 0, k;
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char *data, *c, *d;
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char *data, *c, *d;
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if (fd <= 0 || !buf || space_left <= 0)
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if (fd <= 0 || !buf || space_left <= 0)
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return -1;
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return -1;
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memset (buf, 0, space_left);
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memset (buf, 0, space_left);
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readlen = foo ();
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readlen = foo ();
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if (!(data = malloc (readlen * sizeof (char) + 1)))
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if (!(data = malloc (readlen * sizeof (char) + 1)))
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return -1;
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return -1;
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c = data;
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c = data;
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space_left--;
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space_left--;
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while (len < space_left)
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while (len < space_left)
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{
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{
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if (!c || *c == '\0')
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if (!c || *c == '\0')
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break;
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break;
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else if (*c == 'I')
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else if (*c == 'I')
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{
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{
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d = c + 4;
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d = c + 4;
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k = 0;
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k = 0;
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while (d[k] != '\r' && d[k] != '\n' && d[k] != '\0')
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while (d[k] != '\r' && d[k] != '\n' && d[k] != '\0')
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++k;
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++k;
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if (k >= space_left)
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if (k >= space_left)
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return len;
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return len;
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memcpy (buf + len, c, 4);
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memcpy (buf + len, c, 4);
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len += 4;
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len += 4;
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long2str (buf + len, k + 1);
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long2str (buf + len, k + 1);
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len += 4;
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len += 4;
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memcpy (buf + len, d, k);
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memcpy (buf + len, d, k);
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*(buf + len + k + 1) = '\0';
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*(buf + len + k + 1) = '\0';
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if ((k + 1) & 1)
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if ((k + 1) & 1)
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{
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{
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k++;
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k++;
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*(buf + len + k + 1) = '\0';
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*(buf + len + k + 1) = '\0';
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}
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}
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len += k + 1;
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len += k + 1;
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while (*c != '\n' && *c != '\0')
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while (*c != '\n' && *c != '\0')
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++c;
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++c;
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if (*c != '\0')
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if (*c != '\0')
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++c;
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++c;
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else
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else
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break;
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break;
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}
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}
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}
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}
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free (data);
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free (data);
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return len;
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return len;
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}
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}
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