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Annotation of src/usr.bin/ssh/aux.c, Revision 1.4

1.1       markus      1: #include "includes.h"
1.4     ! provos      2: RCSID("$OpenBSD: aux.c,v 1.3 2000/06/18 17:13:41 markus Exp $");
1.2       markus      3:
                      4: #include "ssh.h"
1.1       markus      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;
1.3       markus     25:        if (isatty(fd)) {
                     26:                /* do not mess with tty's */
                     27:                debug("no set_nonblock for tty fd %d", fd);
                     28:                return;
                     29:        }
1.1       markus     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)
                     40:                error("fcntl(%d, F_SETFL, O_NONBLOCK): %s", fd, strerror(errno));
1.4     ! provos     41: }
        !            42:
        !            43: /* Characters considered whitespace in strsep calls. */
        !            44: #define WHITESPACE " \t\r\n"
        !            45:
        !            46: char *
        !            47: strdelim(char **s)
        !            48: {
        !            49:        char *old;
        !            50:        int wspace = 0;
        !            51:
        !            52:        if (*s == NULL)
        !            53:                return NULL;
        !            54:
        !            55:        old = *s;
        !            56:
        !            57:        *s = strpbrk(*s, WHITESPACE "=");
        !            58:        if (*s == NULL)
        !            59:                return (old);
        !            60:
        !            61:        /* Allow only one '=' to be skipped */
        !            62:        if (*s[0] == '=')
        !            63:                wspace = 1;
        !            64:        *s[0] = '\0';
        !            65:
        !            66:        *s += strspn(*s + 1, WHITESPACE) + 1;
        !            67:        if (*s[0] == '=' && !wspace)
        !            68:                *s += strspn(*s + 1, WHITESPACE) + 1;
        !            69:
        !            70:        return (old);
1.1       markus     71: }