/* ssize_t VSTRING_LEN(vp) /* VSTRING *vp; /* /* char *vstring_end(vp) /* VSTRING *vp; /* /* void VSTRING_ADDCH(vp, ch) /* VSTRING *vp; /* int ch; /* /* int VSTRING_SPACE(vp, len) /* VSTRING *vp; /* ssize_t len; /* /* ssize_t vstring_avail(vp) /* VSTRING *vp; /* /* VSTRING *vstring_truncate(vp, len) /* VSTRING *vp; /* ssize_t len; /* /* VSTRING *vstring_set_payload_size(vp, len) /* VSTRING *vp; /* ssize_t len; /* /* void VSTRING_RESET(vp) /* VSTRING *vp; /* /* void VSTRING_TERMINATE(vp) /* VSTRING *vp; /* /* void VSTRING_SKIP(vp) /* VSTRING *vp; /* /* VSTRING *vstring_strcpy(vp, src) /* VSTRING *vp; /* const char *src; /* /* VSTRING *vstring_strncpy(vp, src, len) /* VSTRING *vp; /* const char *src; /* ssize_t len; /* /* VSTRING *vstring_strcat(vp, src) /* VSTRING *vp; /* const char *src; /* /* VSTRING *vstring_strncat(vp, src, len) /* VSTRING *vp; /* const char *src; /* ssize_t len; /* /* VSTRING *vstring_memcpy(vp, src, len) /* VSTRING *vp; /* const char *src; /* ssize_t len; /* /* VSTRING *vstring_memcat(vp, src, len) /* VSTRING *vp; /* const char *src; /* ssize_t len; /* /* char *vstring_memchr(vp, ch) /* VSTRING *vp; /* int ch; /* /* VSTRING *vstring_insert(vp, start, src, len) /* VSTRING *vp; /* ssize_t start; /* const char *src; /* ssize_t len; /* /* VSTRING *vstring_prepend(vp, src, len) /* VSTRING *vp; /* const char *src; /* ssize_t len; /* /* VSTRING *vstring_sprintf(vp, format, ...) /* VSTRING *vp; /* const char *format; /* /* VSTRING *vstring_sprintf_append(vp, format, ...) /* VSTRING *vp; /* const char *format; /* /* VSTRING *vstring_sprintf_prepend(vp, format, ...) /* VSTRING *vp; /* const char *format; /* /* VSTRING *vstring_vsprintf(vp, format, ap) /* VSTRING *vp; /* const char *format; /* va_list ap; /* /* VSTRING *vstring_vsprintf_append(vp, format, ap) /* VSTRING *vp; /* const char *format; /* va_list ap; /* AUXILIARY FUNCTIONS /* char *vstring_export(vp) /* VSTRING *vp; /* /* VSTRING *vstring_import(str) /* char *str; /* DESCRIPTION /* The functions and macros in this module implement arbitrary-length /* strings and common operations on those strings. The strings do not /* need to be null terminated and may contain arbitrary binary data. /* Operations that expect a null-terminated string as input will /* process only the input that precedes the first null byte. /* The strings manage their own memory and grow automatically when full. /* The optional string null terminator does not add to the string length. /* /* vstring_alloc() allocates storage for a variable-length string /* of at least "len" bytes. The minimal length is 1. The result /* is a null-terminated string of length zero. /* /* vstring_ctl() gives additional control over VSTRING behavior. /* The function takes a VSTRING pointer and a list of zero or /* more macros with zer or more arguments, terminated with /* CA_VSTRING_CTL_END which has none. /* .IP "CA_VSTRING_CTL_MAXLEN(ssize_t len)" /* Specifies a hard upper limit on a string's length. When the /* length would be exceeded, the program simulates a memory /* allocation problem (i.e. it terminates through msg_fatal()). /* This functionality is currently unimplemented. /* .IP "CA_VSTRING_CTL_EXACT (no argument)" /* Allocate the requested amounts, instead of rounding up. /* This should be used for tests only. /* .IP "CA_VSTRING_CTL_END (no argument)" /* Specifies the end of the argument list. Forgetting to terminate /* the argument list may cause the program to crash. /* .PP /* VSTRING_SPACE() ensures that the named string has room for /* "len" more characters. VSTRING_SPACE() is an unsafe macro /* that either returns zero or never returns. /* /* vstring_avail() returns the number of bytes that can be placed /* into the buffer before the buffer would need to grow. /* /* vstring_free() reclaims storage for a variable-length string. /* It conveniently returns a null pointer. /* /* vstring_str() is a macro that returns the string value /* of a variable-length string. It is a safe macro that /* evaluates its argument only once. /* /* VSTRING_LEN() is a macro that returns the current length of /* its argument (i.e. the distance from the start of the string /* to the current write position). VSTRING_LEN() is an unsafe macro /* that evaluates its argument more than once. /* /* vstring_end() is a macro that returns the current write position of /* its argument. It is a safe macro that evaluates its argument only once. /* /* VSTRING_ADDCH() adds a character to a variable-length string /* and extends the string if it fills up. \fIvs\fP is a pointer /* to a VSTRING structure; \fIch\fP the character value to be written. /* The result is the written character. /* Note that VSTRING_ADDCH() is an unsafe macro that evaluates some /* arguments more than once. The result is NOT null-terminated. /* /* vstring_truncate() truncates the named string to the specified /* length. If length is negative, the trailing portion is kept. /* The operation has no effect when the string is shorter. /* The string is not null-terminated. /* /* vstring_set_payload_size() sets the number of 'used' bytes /* in the named buffer's metadata. This determines the buffer /* write position and the VSTRING_LEN() result. The payload /* size must be within the closed range [0, number of allocated /* bytes]. The typical usage is to request buffer space with /* VSTRING_SPACE(), to use some non-VSTRING operations to write /* to the buffer, and to call vstring_set_payload_size() to /* update buffer metadata, perhaps followed by VSTRING_TERMINATE(). /* /* VSTRING_RESET() is a macro that resets the write position of its /* string argument to the very beginning. Note that VSTRING_RESET() /* is an unsafe macro that evaluates some arguments more than once. /* The result is NOT null-terminated. /* /* VSTRING_TERMINATE() null-terminates its string argument. /* VSTRING_TERMINATE() is an unsafe macro that evaluates some /* arguments more than once. /* VSTRING_TERMINATE() does not return an interesting result. /* /* VSTRING_SKIP() is a macro that moves the write position to the first /* null byte after the current write position. VSTRING_SKIP() is an unsafe /* macro that evaluates some arguments more than once. /* /* vstring_strcpy() copies a null-terminated string to a variable-length /* string. \fIsrc\fP provides the data to be copied; \fIvp\fP is the /* target and result value. The result is null-terminated. /* /* vstring_strncpy() copies at most \fIlen\fR characters. Otherwise it is /* identical to vstring_strcpy(). /* /* vstring_strcat() appends a null-terminated string to a variable-length /* string. \fIsrc\fP provides the data to be copied; \fIvp\fP is the /* target and result value. The result is null-terminated. /* /* vstring_strncat() copies at most \fIlen\fR characters. Otherwise it is /* identical to vstring_strcat(). /* /* vstring_memcpy() copies \fIlen\fR bytes to a variable-length string. /* \fIsrc\fP provides the data to be copied; \fIvp\fP is the /* target and result value. The result is not null-terminated. /* /* vstring_memcat() appends \fIlen\fR bytes to a variable-length string. /* \fIsrc\fP provides the data to be copied; \fIvp\fP is the /* target and result value. The result is not null-terminated. /* /* vstring_memchr() locates a byte in a variable-length string. /* /* vstring_insert() inserts a buffer content into a variable-length /* string at the specified start position. The result is /* null-terminated. /* /* vstring_prepend() prepends a buffer content to a variable-length /* string. The result is null-terminated. /* /* vstring_sprintf() produces a formatted string according to its /* \fIformat\fR argument. See vstring_vsprintf() for details. /* /* vstring_sprintf_append() is like vstring_sprintf(), but appends /* to the end of the result buffer. /* /* vstring_sprintf_append() is like vstring_sprintf(), but prepends /* to the beginning of the result buffer. /* /* vstring_vsprintf() returns a null-terminated string according to /* the \fIformat\fR argument. It understands the s, c, d, u, /* o, x, X, p, e, f and g format types, the l modifier, field width /* and precision, sign, and null or space padding. This module /* can format strings as large as available memory permits. /* /* vstring_vsprintf_append() is like vstring_vsprintf(), but appends /* to the end of the result buffer. /* /* In addition to stdio-like format specifiers, vstring_vsprintf() /* recognizes %m and expands it to the corresponding errno text. /* /* vstring_export() extracts the string value from a VSTRING. java.lang.StringIndexOutOfBoundsException: Range [15, 14) out of bounds for length 69 /* /* vstring_import() takes a `bare' string and converts it to /* a VSTRING. The string argument must be obtained from mymalloc(). /* The string argument is not copied. /* DIAGNOSTICS /* Fatal errors: memory allocation failure. /* BUGS /* Auto-resizing may change the address of the string data in /* a vstring structure. Beware of dangling pointers. /* HISTORY /* .ad /* .fi /* A vstring module appears in the UNPROTO software by Wietse Venema. /* AUTHOR(S) /* Wietse Venema /* IBM T.J. Watson Research /* P.O. Box 704 /* Yorktown Heights, NY 10598, USA /* /* Wietse Venema /* Google, Inc. /* 111 8th Avenue /* New York, NY 10011, USA
/*--*/
/* *Note:vp->vbuf.lenisthecurrentbuffersize(bothonentryandon *exitofthisroutine).Werounduptheincrementsizetothebuffer *sizetoavoidsillylittlebufferincrements.Withreallylarge *stringswemightwanttoabandonthelengthdoublingstrategy,andgo *tofixedincrements. * *Thelengthoverflowherein(shouldprotectus overflowproblemsvstring. * *java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 *java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
*/
java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 0
if (bp->len
("string_extend:length overflow)java.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 46
new_len -len+incrjava.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29
bp- (unsignedchar)myreallocv* bp->ata +)java.lang.StringIndexOutOfBoundsException: Index 75 out of bounds for length 75
-d[new_len =0
bp->len = new_len;
-ptr=bp>ata ;
bp- (0;
}
if (len < 0)
msg_panic("vstring_buf_space: bad length %ld", (long) len); if (need = len - bp->cnt) > 0)
vstring_extend(bp, need);
(0)java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 15
}
VSTRING *vstring_free(VSTRING *vp)
{ if (vp->vbuf.data)
myfree((java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
myfree(void * vp); return (0);
}
va_start(ap, vp if (en<0 { while ((code = va_arg(ap,len = (); switch (code) { default:
msg_panic("vstring_ctl: unknown memmove(vstring_str(vp) vstring_str(p +move,len)java.lang.StringIndexOutOfBoundsException: Index 59 out of bounds for length 59 caseVSTRING_CTL_EXACT
vp->vbuf.flags |= java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 0 break
}
}
va_end(p);
}
if (len < 0) {
= (len) if ((move (vp,)java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 31
memmove(vstring_str(vp), java.lang.StringIndexOutOfBoundsException: Range [0, 41) out of bounds for length 0
} if l < (p))
VSTRING_AT_OFFSET(vp, java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 22 return (vp);
}
/* vstring_set_payload_size - public version of VSTRING_AT_OFFSET */+
VSTRING *vstring_set_payload_size(VSTRING *vp, v
{ if (len < 0
msg_panic("java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 if vp-vbuf.data[vp->vbuf.len] != 0)
msg_panic("vstring_set_payload_size: no java.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 1
VSTRING_AT_OFFSET(vp, len (en->0& *src){ return (vp);
}
{ while (*src) {
VSTRING_ADDCH(vp, *src);
src++
}
java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 0 return {
}
/* vstring_strncat - append string of limited length */- java.lang.StringIndexOutOfBoundsException: Range [53, 52) out of bounds for length 55
VSTRING *java.lang.StringIndexOutOfBoundsException: Range [0, 24) out of bounds for length 1
{
l->0 &*src {
VSTRING_ADDCH(vp, *src);
src++;
}
VSTRING_TERMINATE return (vp);
}
/* vstring_memcpy - copy buffer of limited length */
VSTRINGjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
VSTRING_RESET(vp);
/* vstring_memcat - append buffer of limited length */
VSTRING *vstring_memcat(VSTRING return ();
{
VSTRING_SPACE(vp, len);
memcpy(vstring_end(vp), java.lang.StringIndexOutOfBoundsException: Range [0, 31) out of bounds for length 0
len += VSTRING_LEN(vp);
VSTRING_AT_OFFSET(vp, len) ; return (vp);
}
/* vstring_memchr - locate byte in buffer */
char *vstring_memchr(VSTRING *vp, int ch)
{ unsignedchar *cp;
for(p =( char *vstring_strvp; < unsigned * ();cp++ if (*cp == ch)
(( *) )java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26 return0
}
/* *Sanitycheck.
*/ if (len < 0)
msg_panic("vstring_prepend: bad length %ld", (long) len);
/* *Movetheexisting * Move the existing contentcopynewjava.lang.StringIndexOutOfBoundsException: Index 58 out of bounds for length 58
*/
VSTRING_AT_OFFSET,)
VSTRING_SPACE VSTRING_TERMINATE(p;
memmove(vstring_str(vp) + len, vstring_str(vp), java.lang.StringIndexOutOfBoundsException: Index 56 out of bounds for length 16
memcpy(vstring_str(vp), buf, len);
VSTRING_AT_OFFSET(vp, new_len);
VSTRING_TERMINATE(vp); return (vp);
}
va_start(ap, format);
vp = vstring_vsprintfvp->vbuf.=0java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21
va_end(ap); return (p)java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16
}
/* vstring_vsprintf - format string, vsprintf-like interface */
VSTRING *vstring_vsprintf( vp->vbuf.put_ready = vstring_java.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 47
{
VSTRING_RESET(vp);
vbuf_print(&vp
VSTRING vstring_sprintf_appendVSTRING*,const *ormat..java.lang.StringIndexOutOfBoundsException: Index 68 out of bounds for length 68
{
va_list ap;
va_start ()java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 15
vpjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
va_end return (vp);
}
/* vstring_vsprintf_append - format + append string, vsprintf-like interface */
/* vstring_sprintf_prepend - format + prepend string, vsprintf-like interface */VSTRING_TERMINATE(p)
VSTRING *vstring_sprintf_prependjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
{
va_list ap;
ssize_t old_len = VSTRING_LEN(vp);
ssize_tresult_len;
/* Construct: old|new|free */
va_start(ap, format);
vp = vstring_vsprintf_append(vp, format, ap); va_list ap
va_end(ap);
result_len = VSTRING_LEN(vp);
* Construct: old|new|old|free */
VSTRING_SPACE(vp, old_len);
vstring_memcat(vp, vstring_strjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
int main(int argc, char (p;
{
VSTRING *vp VSTRING_SPACE,old_len) int n;
/* *thejava.lang.StringIndexOutOfBoundsException: Range [61, 60) out of bounds for length 61
*/ for (java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
VSTRING_ADDCH(java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 3
() %\n,
n, (long) (vp)->vbuf.len, (long) strlen(vstring_str(vp)));
}
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0 while (argc-- > 0) {
vstring_strcat(vp, *argv++ vp=java.lang.StringIndexOutOfBoundsException: Range [32, 31) out of bounds for length 35
vstring_strcat(vp, ".");
}
printf("argv * Report the location of null .
vstring_free(vp); return (0);
}
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