1 /* 2 * This file and its contents are supplied under the terms of the 3 * Common Development and Distribution License ("CDDL"), version 1.0. 4 * You may only use this file in accordance with the terms of version 5 * 1.0 of the CDDL. 6 * 7 * A full copy of the text of the CDDL should have accompanied this 8 * source. A copy of the CDDL is also available via the Internet at 9 * http://www.illumos.org/license/CDDL. 10 */ 11 12 /* 13 * Copyright 2016 Joyent, Inc. 14 */ 15 16 /* 17 * Regression test for 7076 where doing a putenv() call without an '=' sign 18 * may lead to a segmentation fault when doing a getenv() depending on the 19 * circumstances of the environment's layout. Verify putenv() mimics 20 * unsetenv(). 21 */ 22 23 #include <stdlib.h> 24 #include <stdio.h> 25 #include <errno.h> 26 #include <string.h> 27 #include <sys/debug.h> 28 29 int 30 main(void) 31 { 32 if (putenv("FOO=bar") != 0) { 33 fprintf(stderr, "failed to put FOO into the environment: %s\n", 34 strerror(errno)); 35 return (1); 36 } 37 38 if (getenv("FOO") == NULL) { 39 fprintf(stderr, "failed to retrieve FOO from the " 40 "environment!\n"); 41 return (1); 42 } 43 44 VERIFY0(unsetenv("FOO")); 45 46 if (getenv("FOO") != NULL) { 47 fprintf(stderr, "Somehow retrieved FOO from the " 48 "environment after unsetenv()!\n"); 49 return (1); 50 } 51 52 if (putenv("FOO=bar") != 0) { 53 fprintf(stderr, "failed to put FOO into the environment: %s\n", 54 strerror(errno)); 55 return (1); 56 } 57 58 if (getenv("FOO") == NULL) { 59 fprintf(stderr, "failed to retrieve FOO from the " 60 "environment!\n"); 61 return (1); 62 } 63 64 VERIFY0(putenv("FOO")); 65 66 if (getenv("FOO") != NULL) { 67 fprintf(stderr, "Somehow retrieved FOO from the " 68 "environment after putenv()!\n"); 69 return (1); 70 } 71 72 return (0); 73 } 74