GIF89a;
EcchiShell v1.0
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proc/
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libtool/
argz) && (q[-1] != EOS_CHAR))
*q++ = EOS_CHAR;
else
--argz_len;
}
else
*q++ = *p;
}
/* Copy terminating EOS_CHAR. */
*q = *p;
}
/* If ARGZ_LEN has shrunk to nothing, release ARGZ's memory. */
if (!argz_len)
argz = (free (argz), (char *) 0);
/* Assign new values. */
*pargz = argz;
*pargz_len = argz_len;
return 0;
}
error_t
argz_insert (char **pargz, size_t *pargz_len, char *before, const char *entry)
{
assert (pargz);
assert (pargz_len);
assert (entry && *entry);
/* No BEFORE address indicates ENTRY should be inserted after the
current last element. */
if (!before)
return argz_append (pargz, pargz_len, entry, 1+ strlen (entry));
/* This probably indicates a programmer error, but to preserve
semantics, scan back to the start of an entry if BEFORE points
into the middle of it. */
while ((before > *pargz) && (before[-1] != EOS_CHAR))
--before;
{
size_t entry_len = 1+ strlen (entry);
size_t argz_len = *pargz_len + entry_len;
size_t offset = before - *pargz;
char *argz = (char *) realloc (*pargz, argz_len);
if (!argz)
return ENOMEM;
/* Make BEFORE point to the equivalent offset in ARGZ that it
used to have in *PARGZ incase realloc() moved the block. */
before = argz + offset;
/* Move the ARGZ entries starting at BEFORE up into the new
space at the end -- making room to copy ENTRY into the
resulting gap. */
memmove (before + entry_len, before, *pargz_len - offset);
memcpy (before, entry, entry_len);
/* Assign new values. */
*pargz = argz;
*pargz_len = argz_len;
}
return 0;
}
char *
argz_next (char *argz, size_t argz_len, const char *entry)
{
assert ((argz && argz_len) || (!argz && !argz_len));
if (entry)
{
/* Either ARGZ/ARGZ_LEN is empty, or ENTRY points into an address
within the ARGZ vector. */
assert ((!argz && !argz_len)
|| ((argz <= entry) && (entry < (argz + argz_len))));
/* Move to the char immediately after the terminating
'\0' of ENTRY. */
entry = 1+ strchr (entry, EOS_CHAR);
/* Return either the new ENTRY, or else NULL if ARGZ is
exhausted. */
return (entry >= argz + argz_len) ? 0 : (char *) entry;
}
else
{
/* This should probably be flagged as a programmer error,
since starting an argz_next loop with the iterator set
to ARGZ is safer. To preserve semantics, handle the NULL
case by returning the start of ARGZ (if any). */
if (argz_len > 0)
return argz;
else
return 0;
}
}
void
argz_stringify (char *argz, size_t argz_len, int sep)
{
assert ((argz && argz_len) || (!argz && !argz_len));
if (sep)
{
--argz_len; /* don't stringify the terminating EOS */
while (--argz_len > 0)
{
if (argz[argz_len] == EOS_CHAR)
argz[argz_len] = sep;
}
}
}