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Member "leafnode-1.12.0/agetcwd.c" (28 Dec 2021, 667 Bytes) of package /linux/misc/leafnode-1.12.0.tar.xz:

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    1 #include "leafnode.h"
    2 #include <unistd.h>
    3 
    4 /* (C) Copyright 2004 by Matthias Andree */
    5 
    6 /** allocates a buffer (stores result into *buf and *size)
    7  * and fetches the current working directory.
    8  * *buf must be a malloc()d buffer or NULL on first call.
    9  * returns success, *buf is free()d when FALSE is returned */
   10 int agetcwd(char **buf, size_t *size) {
   11     while(1) {
   12     if (*buf) {
   13         if (getcwd(*buf, *size - 1))
   14         return TRUE;
   15         free(*buf);
   16         *buf = NULL;
   17         if (errno != ERANGE) {
   18         return FALSE;
   19         }
   20         *size <<= 1;
   21     } else {
   22         *size = PATH_MAX;
   23     }
   24     *buf = critmalloc(*size, "agetcwd");
   25     (*buf)[*size-1] = 0; /* NUL terminate always */
   26     }
   27 }
   28 
   29