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(w32_execvp): New function; wrapper for `execvp'.

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(execvp) [WINDOWSNT]: Redefine to `w32_execvp'.
(fail): Remove Windows-specific fix (subsumed in w32_execvp).
This commit is contained in:
Juanma Barranquero 2006-12-15 14:53:44 +00:00
parent c6e87e8968
commit 4472aef4c3
2 changed files with 48 additions and 7 deletions
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40
lib-src/emacsclient.c
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@ -298,6 +298,42 @@ Report bugs to bug-gnu-emacs@gnu.org.\n", progname);
}
#ifdef WINDOWSNT
/*
execvp() wrapper for Windows. Quotes arguments with embedded spaces.
This is necessary due to the broken implementation of exec* routines in
the Microsoft libraries: they concatenate the arguments together without
quoting special characters, and pass the result to CreateProcess, with
predictably bad results. By contrast, Posix execvp passes the arguments
directly into the argv[] array of the child process.
*/
int
w32_execvp (path, argv)
char *path;
char **argv;
{
int i;
argv[0] = (char *) alternate_editor;
for (i = 0; argv[i]; i++)
if (strchr (argv[i], ' '))
{
char *quoted = alloca (strlen (argv[i]) + 3);
sprintf (quoted, "\"%s\"", argv[i]);
argv[i] = quoted;
}
return execvp (path, argv);
}
#undef execvp
#define execvp w32_execvp
#endif /* WINDOWSNT */
/*
Try to run a different command, or --if no alternate editor is
defined-- exit with an errorcode.
@ -310,9 +346,7 @@ fail (argc, argv)
if (alternate_editor)
{
int i = optind - 1;
#ifdef WINDOWSNT
argv[i] = (char *)alternate_editor;
#endif
execvp (alternate_editor, argv + i);
message (TRUE, "%s: error executing alternate editor \"%s\"\n",
progname, alternate_editor);