1 /* This test program is part of GDB, the GNU debugger. 2 3 Copyright 1997-2023 Free Software Foundation, Inc. 4 5 This program is free software; you can redistribute it and/or modify 6 it under the terms of the GNU General Public License as published by 7 the Free Software Foundation; either version 3 of the License, or 8 (at your option) any later version. 9 10 This program is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 GNU General Public License for more details. 14 15 You should have received a copy of the GNU General Public License 16 along with this program. If not, see <http://www.gnu.org/licenses/>. */ 17 18 #include <stdio.h> 19 #include <stdlib.h> 20 #include <unistd.h> 21 #include <string.h> 22 23 #include <limits.h> 24 25 int global_i = 100; 26 27 int main (int argc, char ** argv) 28 { 29 int local_j = global_i + 1; 30 int local_k = local_j + 1; 31 char prog[PATH_MAX]; 32 int len; 33 34 printf ("foll-exec is about to execlp(execd-prog)...\n"); 35 36 strcpy (prog, argv[0]); 37 len = strlen (prog); 38 /* Replace "foll-exec" with "execd-prog". */ 39 memcpy (prog + len - 9, "execd-prog", 10); 40 prog[len + 1] = 0; 41 42 /* In the following function call, maximum line length exceed the limit 80. 43 This is intentional and required for clang compiler such that complete 44 function call should be in a single line, please do not make it 45 multi-line. */ 46 execlp (prog, /* tbreak-execlp */ prog, "execlp arg1 from foll-exec", (char *) 0); 47 48 printf ("foll-exec is about to execl(execd-prog)...\n"); 49 50 /* In the following function call, maximum line length exceed the limit 80. 51 This is intentional and required for clang compiler such that complete 52 function call should be in a single line, please do not make it 53 multi-line. */ 54 execl (prog, /* tbreak-execl */ prog, "execl arg1 from foll-exec", "execl arg2 from foll-exec", (char *) 0); 55 56 { 57 static char * argv[] = { 58 (char *) "", 59 (char *) "execv arg1 from foll-exec", 60 (char *) 0}; 61 62 argv[0] = prog; 63 64 printf ("foll-exec is about to execv(execd-prog)...\n"); 65 66 execv (prog, argv); /* tbreak-execv */ 67 } 68 } 69