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Annotation of src/usr.bin/ssh/util.c, Revision 1.3

1.1       provos      1: #include "includes.h"
1.2       markus      2: RCSID("$OpenBSD: util.c,v 1.1 2000/08/01 19:01:42 provos Exp $");
1.1       provos      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)
1.3     ! markus     40:                error("fcntl(%d, F_SETFL, O_NONBLOCK): %s", fd, strerror(errno));
1.1       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);
                     71: }