diff options
Diffstat (limited to 'ident.c')
| -rw-r--r-- | ident.c | 104 |
1 files changed, 39 insertions, 65 deletions
@@ -7,9 +7,8 @@ */ #include "cache.h" -#define MAX_GITNAME (1000) -static char git_default_name[MAX_GITNAME]; -static char git_default_email[MAX_GITNAME]; +static struct strbuf git_default_name = STRBUF_INIT; +static struct strbuf git_default_email = STRBUF_INIT; static char git_default_date[50]; int user_ident_explicitly_given; @@ -19,42 +18,27 @@ int user_ident_explicitly_given; #define get_gecos(struct_passwd) ((struct_passwd)->pw_gecos) #endif -static void copy_gecos(const struct passwd *w, char *name, size_t sz) +static void copy_gecos(const struct passwd *w, struct strbuf *name) { - char *src, *dst; - size_t len, nlen; - - nlen = strlen(w->pw_name); + char *src; /* Traditionally GECOS field had office phone numbers etc, separated * with commas. Also & stands for capitalized form of the login name. */ - for (len = 0, dst = name, src = get_gecos(w); len < sz; src++) { + for (src = get_gecos(w); *src && *src != ','; src++) { int ch = *src; - if (ch != '&') { - *dst++ = ch; - if (ch == 0 || ch == ',') - break; - len++; - continue; - } - if (len + nlen < sz) { + if (ch != '&') + strbuf_addch(name, ch); + else { /* Sorry, Mr. McDonald... */ - *dst++ = toupper(*w->pw_name); - memcpy(dst, w->pw_name + 1, nlen - 1); - dst += nlen - 1; - len += nlen; + strbuf_addch(name, toupper(*w->pw_name)); + strbuf_addstr(name, w->pw_name + 1); } } - if (len < sz) - name[len] = 0; - else - die("Your parents must have hated you!"); - } -static int add_mailname_host(char *buf, size_t len) +static int add_mailname_host(struct strbuf *buf) { FILE *mailname; @@ -65,7 +49,7 @@ static int add_mailname_host(char *buf, size_t len) strerror(errno)); return -1; } - if (!fgets(buf, len, mailname)) { + if (strbuf_getline(buf, mailname, '\n') == EOF) { if (ferror(mailname)) warning("cannot read /etc/mailname: %s", strerror(errno)); @@ -74,85 +58,73 @@ static int add_mailname_host(char *buf, size_t len) } /* success! */ fclose(mailname); - - len = strlen(buf); - if (len && buf[len-1] == '\n') - buf[len-1] = '\0'; return 0; } -static void add_domainname(char *buf, size_t len) +static void add_domainname(struct strbuf *out) { + char buf[1024]; struct hostent *he; - size_t namelen; const char *domainname; - if (gethostname(buf, len)) { + if (gethostname(buf, sizeof(buf))) { warning("cannot get host name: %s", strerror(errno)); - strlcpy(buf, "(none)", len); + strbuf_addstr(out, "(none)"); return; } - namelen = strlen(buf); - if (memchr(buf, '.', namelen)) + strbuf_addstr(out, buf); + if (strchr(buf, '.')) return; he = gethostbyname(buf); - buf[namelen++] = '.'; - buf += namelen; - len -= namelen; + strbuf_addch(out, '.'); if (he && (domainname = strchr(he->h_name, '.'))) - strlcpy(buf, domainname + 1, len); + strbuf_addstr(out, domainname + 1); else - strlcpy(buf, "(none)", len); + strbuf_addstr(out, "(none)"); } -static void copy_email(const struct passwd *pw) +static void copy_email(const struct passwd *pw, struct strbuf *email) { /* * Make up a fake email address * (name + '@' + hostname [+ '.' + domainname]) */ - size_t len = strlen(pw->pw_name); - if (len > sizeof(git_default_email)/2) - die("Your sysadmin must hate you!"); - memcpy(git_default_email, pw->pw_name, len); - git_default_email[len++] = '@'; - - if (!add_mailname_host(git_default_email + len, - sizeof(git_default_email) - len)) + strbuf_addstr(email, pw->pw_name); + strbuf_addch(email, '@'); + + if (!add_mailname_host(email)) return; /* read from "/etc/mailname" (Debian) */ - add_domainname(git_default_email + len, - sizeof(git_default_email) - len); + add_domainname(email); } const char *ident_default_name(void) { - if (!git_default_name[0]) { + if (!git_default_name.len) { struct passwd *pw = getpwuid(getuid()); if (!pw) die("You don't exist. Go away!"); - copy_gecos(pw, git_default_name, sizeof(git_default_name)); + copy_gecos(pw, &git_default_name); } - return git_default_name; + return git_default_name.buf; } const char *ident_default_email(void) { - if (!git_default_email[0]) { + if (!git_default_email.len) { const char *email = getenv("EMAIL"); if (email && email[0]) { - strlcpy(git_default_email, email, - sizeof(git_default_email)); + strbuf_addstr(&git_default_email, email); user_ident_explicitly_given |= IDENT_MAIL_GIVEN; } else { struct passwd *pw = getpwuid(getuid()); if (!pw) die("You don't exist. Go away!"); - copy_email(pw); + copy_email(pw, &git_default_email); } } - return git_default_email; + return git_default_email.buf; } const char *ident_default_date(void) @@ -327,7 +299,7 @@ const char *fmt_ident(const char *name, const char *email, struct passwd *pw; if (error_on_no_name) { - if (name == git_default_name) + if (name == git_default_name.buf) fputs(env_hint, stderr); die("empty ident %s <%s> not allowed", name, email); } @@ -397,7 +369,8 @@ int git_ident_config(const char *var, const char *value, void *data) if (!strcmp(var, "user.name")) { if (!value) return config_error_nonbool(var); - strlcpy(git_default_name, value, sizeof(git_default_name)); + strbuf_reset(&git_default_name); + strbuf_addstr(&git_default_name, value); user_ident_explicitly_given |= IDENT_NAME_GIVEN; return 0; } @@ -405,7 +378,8 @@ int git_ident_config(const char *var, const char *value, void *data) if (!strcmp(var, "user.email")) { if (!value) return config_error_nonbool(var); - strlcpy(git_default_email, value, sizeof(git_default_email)); + strbuf_reset(&git_default_email); + strbuf_addstr(&git_default_email, value); user_ident_explicitly_given |= IDENT_MAIL_GIVEN; return 0; } |