void shellexec(char **argv, char **envp, const char *path, int idx) { char *cmdname; int e; if (strchr(argv[0], '/') != NULL) { tryexec(argv[0], argv, envp); e = errno; } else { e = ENOENT; while ((cmdname = padvance(&path, argv[0])) != NULL) { if (--idx < 0 && pathopt == NULL) { tryexec(cmdname, argv, envp); if (errno != ENOENT && errno != ENOTDIR) e = errno; if (e == ENOEXEC) break; } stunalloc(cmdname); } } /* Map to POSIX errors */ if (e == ENOENT || e == ENOTDIR) { exerrno = 127; exerror(EXEXEC, "%s: not found", argv[0]); } else { exerrno = 126; exerror(EXEXEC, "%s: %s", argv[0], strerror(e)); } }
void shellexec(char **argv, char **envp, char *path, int index) { char *cmdname; int e; if (strchr(argv[0], '/') != NULL) { tryexec(argv[0], argv, envp); e = errno; } else { e = ENOENT; while ((cmdname = padvance(&path, argv[0])) != NULL) { if (--index < 0 && pathopt == NULL) { tryexec(cmdname, argv, envp); if (errno != ENOENT && errno != ENOTDIR) e = errno; } stunalloc(cmdname); } } /* Map to POSIX errors */ switch (e) { case EACCES: exerrno = 126; break; case ENOENT: exerrno = 127; break; default: exerrno = 2; break; } if (e == ENOENT || e == ENOTDIR) exerror(EXEXEC, "%s: not found", argv[0]); exerror(EXEXEC, "%s: %s", argv[0], strerror(e)); }