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Add compat/unsetenv.c .

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Implement a (slow) unsetenv() for older systems.

Signed-off-by: Jason Riedy <ejr@cs.berkeley.edu>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is contained in:
Jason Riedy 2006-01-25 12:38:36 -08:00 committed by Junio C Hamano
parent 5ea06e2014
commit 731043fd4d
4 changed files with 37 additions and 0 deletions
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5
Makefile
View File

@ -232,6 +232,7 @@ ifeq ($(uname_S),SunOS)
SHELL_PATH = /bin/bash
NO_STRCASESTR = YesPlease
ifeq ($(uname_R),5.8)
NO_UNSETENV = YesPlease
NO_SETENV = YesPlease
endif
INSTALL = ginstall
@ -355,6 +356,10 @@ ifdef NO_SETENV
COMPAT_CFLAGS += -DNO_SETENV
COMPAT_OBJS += compat/setenv.o
endif
ifdef NO_SETENV
COMPAT_CFLAGS += -DNO_UNSETENV
COMPAT_OBJS += compat/unsetenv.o
endif
ifdef NO_MMAP
COMPAT_CFLAGS += -DNO_MMAP
COMPAT_OBJS += compat/mmap.o

26
compat/unsetenv.c Normal file
View File

@ -0,0 +1,26 @@
#include <stdlib.h>
#include <string.h>
void gitunsetenv (const char *name)
{
extern char **environ;
int src, dst;
size_t nmln;
nmln = strlen(name);
for (src = dst = 0; environ[src]; ++src) {
size_t enln;
enln = strlen(environ[src]);
if (enln > nmln) {
/* might match, and can test for '=' safely */
if (0 == strncmp (environ[src], name, nmln)
&& '=' == environ[src][nmln])
/* matches, so skip */
continue;
}
environ[dst] = environ[src];
++dst;
}
environ[dst] = NULL;
}

1
connect.c
View File

@ -1,3 +1,4 @@
#include "git-compat-util.h"
#include "cache.h"
#include "pkt-line.h"
#include "quote.h"

5
git-compat-util.h
View File

@ -63,6 +63,11 @@ extern int gitfakemunmap(void *start, size_t length);
extern int gitsetenv(const char *, const char *, int);
#endif
#ifdef NO_UNSETENV
#define unsetenv gitunsetenv
extern void gitunsetenv(const char *);
#endif
#ifdef NO_STRCASESTR
#define strcasestr gitstrcasestr
extern char *gitstrcasestr(const char *haystack, const char *needle);