From 18e43565574b700befc832ed4d25d25e40951f68 Mon Sep 17 00:00:00 2001 From: Laurent Bercot Date: Tue, 24 Nov 2020 21:45:56 +0000 Subject: Complete revamp of the pathexec functions - pathexec_run is now called exec_ae a for provided file name (default: argv[0]) e for provided envp (default: environ) - pathexec is now called mexec. m for merge environment. Option letters are: a for provided file name (default: argv[0]) e for provided envp (default: environ) f for provided envp *and* length of the envp m for provided modif string plus its length (the length is always needed because the modifs are null-terminated) n for provided modif string, length *and* number of modifs - functions have a foo0 version for _exit(0) when argv[0] is null - functions have a xfoo version to die if the exec fails - and a xfoo0 - Compatibility #defines and #includes are there until the next major bump --- src/libenvexec/env_make.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) create mode 100644 src/libenvexec/env_make.c (limited to 'src/libenvexec/env_make.c') diff --git a/src/libenvexec/env_make.c b/src/libenvexec/env_make.c new file mode 100644 index 0000000..60148f8 --- /dev/null +++ b/src/libenvexec/env_make.c @@ -0,0 +1,16 @@ +/* ISC license. */ + +#include +#include +#include + +int env_make (char const **v, size_t argc, char const *s, size_t len) +{ + while (argc--) + { + size_t n = strlen(s) + 1 ; + if (n > len) return (errno = EINVAL, 0) ; + *v++ = s ; s += n ; len -= n ; + } + return 1 ; +} -- cgit v1.3.1