146 lines
3.2 KiB
C
146 lines
3.2 KiB
C
/* Copyright 1988,1990,1993 by Paul Vixie
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* All rights reserved
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*
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* Distribute freely, except: don't remove my name from the source or
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* documentation (don't take credit for my work), mark your changes (don't
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* get me blamed for your possible bugs), don't alter or remove this
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* notice. May be sold if buildable source is provided to buyer. No
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* warrantee of any kind, express or implied, is included with this
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* software; use at your own risk, responsibility for damages (if any) to
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* anyone resulting from the use of this software rests entirely with the
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* user.
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*
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* Send bug reports, bug fixes, enhancements, requests, flames, etc., and
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* I'll try to keep a version up to date. I can be reached as follows:
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* Paul Vixie <paul@vix.com> uunet!decwrl!vixie!paul
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*/
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#if !defined(lint) && !defined(LINT)
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static char rcsid[] = "$Id: env.c,v 1.1.1.1 1994/01/05 20:40:15 jtc Exp $";
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#endif
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#include "cron.h"
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#include "externs.h"
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char **
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env_init()
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{
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register char **p = (char **) malloc(sizeof(char **));
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p[0] = NULL;
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return p;
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}
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char **
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env_set(envp, envstr)
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char **envp;
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char *envstr;
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{
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register int count, found;
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register char **p;
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/*
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* count the number of elements, including the null pointer;
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* also set 'found' to -1 or index of entry if already in here.
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*/
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found = -1;
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for (count = 0; envp[count] != NULL; count++) {
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if (!strcmp_until(envp[count], envstr, '='))
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found = count;
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}
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count++; /* for the null pointer
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*/
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if (found != -1) {
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/*
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* it exists already, so just free the existing setting,
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* save our new one there, and return the existing array.
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*/
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free(envp[found]);
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envp[found] = strdup(envstr);
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return envp;
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}
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/*
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* it doesn't exist yet, so resize the array, move null pointer over
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* one, save our string over the old null pointer, and return resized
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* array.
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*/
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p = (char **) realloc((void *) envp,
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(unsigned) ((count+1) * sizeof(char **)));
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p[count] = p[count-1];
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p[count-1] = strdup(envstr);
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return p;
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}
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/* return ERR = end of file
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* FALSE = not an env setting (file was repositioned)
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* TRUE = was an env setting
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*/
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int
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load_env(envstr, f)
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char *envstr;
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FILE *f;
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{
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long filepos;
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int fileline;
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char name[MAX_TEMPSTR], val[MAX_ENVSTR];
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int fields;
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filepos = ftell(f);
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fileline = LineNumber;
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skip_comments(f);
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if (EOF == get_string(envstr, MAX_ENVSTR, f, "\n"))
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return ERR;
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Debug(DPARS, ("load_env, read <%s>\n", envstr))
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name[0] = val[0] = '\0';
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fields = sscanf(envstr, "%[^ =] = %[^\n#]", name, val);
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if (fields != 2) {
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Debug(DPARS, ("load_env, not 2 fields (%d)\n", fields))
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fseek(f, filepos, 0);
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Set_LineNum(fileline);
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return FALSE;
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}
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/* 2 fields from scanf; looks like an env setting
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*/
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/*
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* process value string
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*/
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/*local*/{
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int len = strdtb(val);
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if (len >= 2) {
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if (val[0] == '\'' || val[0] == '"') {
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if (val[len-1] == val[0]) {
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val[len-1] = '\0';
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(void) strcpy(val, val+1);
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}
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}
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}
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}
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(void) sprintf(envstr, "%s=%s", name, val);
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Debug(DPARS, ("load_env, <%s> <%s> -> <%s>\n", name, val, envstr))
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return TRUE;
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}
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char *
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env_get(name, envp)
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char *name;
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char **envp;
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{
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for (; *envp; envp++)
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if (!strcmp_until(*envp, name, '='))
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return strchr(*envp, '=') + 1;
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return NULL;
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}
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