Damien Miller | 61c5150 | 2000-08-18 14:01:04 +1000 | [diff] [blame] | 1 | #include "includes.h" |
Damien Miller | caf6dd6 | 2000-08-29 11:33:50 +1100 | [diff] [blame^] | 2 | RCSID("$OpenBSD: util.c,v 1.4 2000/08/28 20:23:37 markus Exp $"); |
Damien Miller | 61c5150 | 2000-08-18 14:01:04 +1000 | [diff] [blame] | 3 | |
| 4 | #include "ssh.h" |
| 5 | |
| 6 | char * |
| 7 | chop(char *s) |
| 8 | { |
| 9 | char *t = s; |
| 10 | while (*t) { |
| 11 | if(*t == '\n' || *t == '\r') { |
| 12 | *t = '\0'; |
| 13 | return s; |
| 14 | } |
| 15 | t++; |
| 16 | } |
| 17 | return s; |
| 18 | |
| 19 | } |
| 20 | |
| 21 | void |
| 22 | set_nonblock(int fd) |
| 23 | { |
| 24 | int val; |
| 25 | if (isatty(fd)) { |
| 26 | /* do not mess with tty's */ |
| 27 | debug("no set_nonblock for tty fd %d", fd); |
| 28 | return; |
| 29 | } |
| 30 | val = fcntl(fd, F_GETFL, 0); |
| 31 | if (val < 0) { |
| 32 | error("fcntl(%d, F_GETFL, 0): %s", fd, strerror(errno)); |
| 33 | return; |
| 34 | } |
| 35 | if (val & O_NONBLOCK) |
| 36 | return; |
| 37 | debug("fd %d setting O_NONBLOCK", fd); |
| 38 | val |= O_NONBLOCK; |
| 39 | if (fcntl(fd, F_SETFL, val) == -1) |
Damien Miller | caf6dd6 | 2000-08-29 11:33:50 +1100 | [diff] [blame^] | 40 | if (errno != ENODEV) |
| 41 | error("fcntl(%d, F_SETFL, O_NONBLOCK): %s", |
| 42 | fd, strerror(errno)); |
Damien Miller | 61c5150 | 2000-08-18 14:01:04 +1000 | [diff] [blame] | 43 | } |
| 44 | |
| 45 | /* Characters considered whitespace in strsep calls. */ |
| 46 | #define WHITESPACE " \t\r\n" |
| 47 | |
| 48 | char * |
| 49 | strdelim(char **s) |
| 50 | { |
| 51 | char *old; |
| 52 | int wspace = 0; |
| 53 | |
| 54 | if (*s == NULL) |
| 55 | return NULL; |
| 56 | |
| 57 | old = *s; |
| 58 | |
| 59 | *s = strpbrk(*s, WHITESPACE "="); |
| 60 | if (*s == NULL) |
| 61 | return (old); |
| 62 | |
| 63 | /* Allow only one '=' to be skipped */ |
| 64 | if (*s[0] == '=') |
| 65 | wspace = 1; |
| 66 | *s[0] = '\0'; |
| 67 | |
| 68 | *s += strspn(*s + 1, WHITESPACE) + 1; |
| 69 | if (*s[0] == '=' && !wspace) |
| 70 | *s += strspn(*s + 1, WHITESPACE) + 1; |
| 71 | |
| 72 | return (old); |
| 73 | } |