diff options
author | Eric Andersen <andersen@codepoet.org> | 2000-10-09 20:06:30 +0000 |
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committer | Eric Andersen <andersen@codepoet.org> | 2000-10-09 20:06:30 +0000 |
commit | c1fe19d4c1db610692365472a90f4661e48449c1 (patch) | |
tree | d0b0219ffca3c4c4256f55c4aea4513e43d6aecd /libc/stdlib/setenv.c | |
parent | 9efafb8bbc7408b04643dcd53825d971577b4d9d (diff) |
Bug ugly formatting update
Diffstat (limited to 'libc/stdlib/setenv.c')
-rw-r--r-- | libc/stdlib/setenv.c | 122 |
1 files changed, 62 insertions, 60 deletions
diff --git a/libc/stdlib/setenv.c b/libc/stdlib/setenv.c index afe5676d1..f7d597139 100644 --- a/libc/stdlib/setenv.c +++ b/libc/stdlib/setenv.c @@ -6,69 +6,71 @@ #include <stdlib.h> #include <malloc.h> -extern char ** environ; +extern char **environ; + #define ADD_NUM 4 -int -setenv(var, value, overwrite) -const char * var; -const char * value; +int setenv(var, value, overwrite) +const char *var; +const char *value; int overwrite; { -static char ** mall_env = 0; -static int extras = 0; - char **p, **d; - char * t; - int len; - - len = strlen(var); - - if (!environ) { - environ = (char**)malloc(ADD_NUM * sizeof(char*)); - memset(environ, 0, sizeof(char*)*ADD_NUM); - extras = ADD_NUM; - } - - for(p=environ; *p; p++) - { - if( memcmp(var, *p, len) == 0 && (*p)[len] == '=' ) - { - if (!overwrite) - return -1; - /* Overwrite stuff */ - while( (p[0] = p[1]) ) p++; - extras++; - break; - } - } - - if( extras <= 0 ) /* Need more space */ - { - d = malloc((p-environ+1+ADD_NUM)*sizeof(char*)); - if( d == 0 ) return -1; - - memcpy((void*) d, (void*) environ, (p-environ+1)*sizeof(char*)); - p = d + (p-environ); - extras=ADD_NUM; - - if( mall_env ) free(mall_env); - environ = d; - mall_env = d; - } - - t = malloc(len + 1 + strlen(value) + 1); - if (!t) - return -1; - - strcpy(t, var); - strcat(t, "="); - strcat(t, value); - - *p++ = (char*)t; - *p = '\0'; - extras--; - - return 0; -} + static char **mall_env = 0; + static int extras = 0; + char **p, **d; + char *t; + int len; + + len = strlen(var); + + if (!environ) { + environ = (char **) malloc(ADD_NUM * sizeof(char *)); + memset(environ, 0, sizeof(char *) * ADD_NUM); + + extras = ADD_NUM; + } + + for (p = environ; *p; p++) { + if (memcmp(var, *p, len) == 0 && (*p)[len] == '=') { + if (!overwrite) + return -1; + /* Overwrite stuff */ + while ((p[0] = p[1])) + p++; + extras++; + break; + } + } + + if (extras <= 0) { /* Need more space */ + d = malloc((p - environ + 1 + ADD_NUM) * sizeof(char *)); + if (d == 0) + return -1; + memcpy((void *) d, (void *) environ, + + (p - environ + 1) * sizeof(char *)); + p = d + (p - environ); + extras = ADD_NUM; + + if (mall_env) + free(mall_env); + environ = d; + mall_env = d; + } + + t = malloc(len + 1 + strlen(value) + 1); + if (!t) + return -1; + + strcpy(t, var); + strcat(t, "="); + strcat(t, value); + + *p++ = (char *) t; + *p = '\0'; + extras--; + + return 0; +} |