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npc(1): adds pledge(2) support

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This commit is contained in:
Emma Tebibyte 2024-08-10 15:22:07 -06:00
parent 851f729ebd
commit 72ef8d00bc
Signed by: emma
GPG Key ID: 06FA419A1698C270
1 changed files with 17 additions and 3 deletions
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20
src/npc.c
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@ -19,8 +19,13 @@
#include <stdio.h> /* fprintf(3), fputs(3), getc(3), perror(3), putc(3), stdin, #include <stdio.h> /* fprintf(3), fputs(3), getc(3), perror(3), putc(3), stdin,
* stdout, EOF */ * stdout, EOF */
#include <sysexits.h> /* EX_IOERR, EX_OK, EX_USAGE */ #include <sysexits.h> /* EX_IOERR, EX_OK, EX_OSERR, EX_USAGE */
#include <unistd.h> /* getopt(3) */ #include <unistd.h> /* pledge(2), getopt(3) */
#ifdef __OpenBSD__
# include <errno.h> /* errno */
# include <string.h> /* strerror(3) */
#endif
char *program_name = "npc"; char *program_name = "npc";
@ -39,13 +44,22 @@ usage(char *argv0) {
} }
int main(int argc, char *argv[]) { int main(int argc, char *argv[]) {
#ifdef __OpenBSD__
program_name = argv[0] == NULL ? program_name : argv[0];
if (pledge("stdio", NULL) == -1) {
(void)fprintf(stderr, "%s: %s\n", program_name, strerror(errno));
return EX_OSERR;
}
#endif
int c; int c;
char showend = 0; /* print a dollar sign before each newline */ char showend = 0; /* print a dollar sign before each newline */
char showtab = 0; /* prints tab characters in caret notation */ char showtab = 0; /* prints tab characters in caret notation */
if (argc > 0) { if (argc > 0) {
#ifndef __OpenBSD__
program_name = argv[0]; program_name = argv[0];
#endif
while ((c = getopt(argc, argv, "et")) != -1) { while ((c = getopt(argc, argv, "et")) != -1) {
switch (c){ switch (c){
case 'e': showend = 1; break; case 'e': showend = 1; break;