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[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.18.0/] [newlib/] [libc/] [argz/] [envz_add.c] - Rev 301
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/* 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> #include <argz.h> #include <envz.h> error_t _DEFUN (envz_add, (envz, envz_len, name, value), char **envz _AND size_t *envz_len _AND const char *name _AND const char *value) { char *concat = NULL; int name_len = 0; int val_len = 0; int retval = 0; envz_remove(envz, envz_len, name); if (value) { name_len = strlen(name); val_len = strlen(value); if(!(concat = (char *) malloc(name_len + val_len + 2))) return ENOMEM; memcpy(concat, name, name_len); concat[name_len] = '='; memcpy(concat + name_len + 1, value, val_len + 1); retval = argz_add(envz, envz_len, concat); free(concat); } else { retval = argz_add(envz, envz_len, name); } return retval; }
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