diff options
Diffstat (limited to 'newlib/libc/argz/argz_delete.c')
-rw-r--r-- | newlib/libc/argz/argz_delete.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/newlib/libc/argz/argz_delete.c b/newlib/libc/argz/argz_delete.c new file mode 100644 index 000000000..47134cbff --- /dev/null +++ b/newlib/libc/argz/argz_delete.c @@ -0,0 +1,37 @@ +/* Copyright (C) 2002 by Red Hat, Incorporated. All rights reserved. + * + * Permission to use, copy, modify, and distribute this software + * is freely granted, provided that this notice is preserved. + */ + +#include <errno.h> +#include <sys/types.h> +#include <string.h> +#include <stdlib.h> + +error_t +argz_delete (char **argz, size_t *argz_len, char *entry) +{ + int len = 0; + char *moveto = entry; + + if (entry) + { + len = strlen(entry) + 1; + entry += len; + + memmove(moveto, entry, *argz + *argz_len - entry); + + *argz_len -= len; + + if(!(*argz = (char *)realloc(*argz, *argz_len))) + return ENOMEM; + + if (*argz_len <= 0) + { + free(*argz); + *argz = NULL; + } + } + return 0; +} |